- Linux-kselftest-mirror - lists.linaro.org

[GIT PULL] Kselftest fixes update for Linux 5.5.rc1

by Shuah Khan

Hi Linus, Please pull the following kselftest fixes update for Linux 5.5-rc1. This kselftest fixes update for Linux 5.5-rc1 consists of several fixes to tests and framework. Masami Hiramatsu fixed several tests to build and run correctly on arm and other 32bit architectures. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit ce3a677802121e038d2f062e90f96f84e7351da0: selftests: watchdog: Add command line option to show watchdog_info (2019-10-02 13:44:43 -0600) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-5.5-rc1-fixes for you to fetch changes up to ed2d8fa734e7759ac3788a19f308d3243d0eb164: selftests: sync: Fix cast warnings on arm (2019-11-07 14:54:37 -0700) ---------------------------------------------------------------- linux-kselftest-5.5-rc1-fixes This kselftest fixes update for Linux 5.5-rc1 consists of several fixes to tests and framework. Masami Hiramatsu fixed several tests to build and run correctly on arm and other 32bit architectures. ---------------------------------------------------------------- Kees Cook (2): selftests: gen_kselftest_tar.sh: Do not clobber kselftest/ selftests: Move kselftest_module.sh into kselftest/ Masami Hiramatsu (6): selftests: breakpoints: Fix a typo of function name selftests: proc: Make va_max 1MB selftests: vm: Build/Run 64bit tests only on 64bit arch selftests: net: Use size_t and ssize_t for counting file size selftests: net: Fix printf format warnings on arm selftests: sync: Fix cast warnings on arm Prabhakar Kushwaha (1): kselftest: Fix NULL INSTALL_PATH for TARGETS runlist Shuah Khan (1): selftests: Fix O= and KBUILD_OUTPUT handling for relative paths tools/testing/selftests/Makefile | 8 +++++--- .../selftests/breakpoints/breakpoint_test_arm64.c | 2 +- tools/testing/selftests/gen_kselftest_tar.sh | 21 +++++++++++-------- .../{kselftest_module.sh => kselftest/module.sh} | 0 tools/testing/selftests/kselftest_install.sh | 24 +++++++++++----------- tools/testing/selftests/lib/bitmap.sh | 2 +- tools/testing/selftests/lib/prime_numbers.sh | 2 +- tools/testing/selftests/lib/printf.sh | 2 +- tools/testing/selftests/lib/strscpy.sh | 2 +- tools/testing/selftests/net/so_txtime.c | 4 ++-- tools/testing/selftests/net/tcp_mmap.c | 8 ++++---- tools/testing/selftests/net/udpgso.c | 3 ++- tools/testing/selftests/net/udpgso_bench_tx.c | 3 ++- .../selftests/proc/proc-self-map-files-002.c | 6 +++++- tools/testing/selftests/sync/sync.c | 6 +++--- tools/testing/selftests/vm/Makefile | 5 +++++ tools/testing/selftests/vm/run_vmtests | 10 +++++++++ 17 files changed, 68 insertions(+), 40 deletions(-) rename tools/testing/selftests/{kselftest_module.sh => kselftest/module.sh} (100%) ----------------------------------------------------------------

5 years, 9 months

2
1
0 0

[PATCH v8 1/9] hugetlb_cgroup: Add hugetlb_cgroup reservation counter

by Mina Almasry

These counters will track hugetlb reservations rather than hugetlb memory faulted in. This patch only adds the counter, following patches add the charging and uncharging of the counter. Problem: Currently tasks attempting to allocate more hugetlb memory than is available get a failure at mmap/shmget time. This is thanks to Hugetlbfs Reservations [1]. However, if a task attempts to allocate hugetlb memory only more than its hugetlb_cgroup limit allows, the kernel will allow the mmap/shmget call, but will SIGBUS the task when it attempts to fault the memory in. We have developers interested in using hugetlb_cgroups, and they have expressed dissatisfaction regarding this behavior. We'd like to improve this behavior such that tasks violating the hugetlb_cgroup limits get an error on mmap/shmget time, rather than getting SIGBUS'd when they try to fault the excess memory in. The underlying problem is that today's hugetlb_cgroup accounting happens at hugetlb memory *fault* time, rather than at *reservation* time. Thus, enforcing the hugetlb_cgroup limit only happens at fault time, and the offending task gets SIGBUS'd. Proposed Solution: A new page counter named hugetlb.xMB.reservation_[limit|usage]_in_bytes. This counter has slightly different semantics than hugetlb.xMB.[limit|usage]_in_bytes: - While usage_in_bytes tracks all *faulted* hugetlb memory, reservation_usage_in_bytes tracks all *reserved* hugetlb memory and hugetlb memory faulted in without a prior reservation. - If a task attempts to reserve more memory than limit_in_bytes allows, the kernel will allow it to do so. But if a task attempts to reserve more memory than reservation_limit_in_bytes, the kernel will fail this reservation. This proposal is implemented in this patch series, with tests to verify functionality and show the usage. We also added cgroup-v2 support to hugetlb_cgroup so that the new use cases can be extended to v2. Alternatives considered: 1. A new cgroup, instead of only a new page_counter attached to the existing hugetlb_cgroup. Adding a new cgroup seemed like a lot of code duplication with hugetlb_cgroup. Keeping hugetlb related page counters under hugetlb_cgroup seemed cleaner as well. 2. Instead of adding a new counter, we considered adding a sysctl that modifies the behavior of hugetlb.xMB.[limit|usage]_in_bytes, to do accounting at reservation time rather than fault time. Adding a new page_counter seems better as userspace could, if it wants, choose to enforce different cgroups differently: one via limit_in_bytes, and another via reservation_limit_in_bytes. This could be very useful if you're transitioning how hugetlb memory is partitioned on your system one cgroup at a time, for example. Also, someone may find usage for both limit_in_bytes and reservation_limit_in_bytes concurrently, and this approach gives them the option to do so. Testing: - Added tests passing. - libhugetlbfs tests mostly passing, but some tests have trouble with and without this patch series. Seems environment issue rather than code: - Overall results: ********** TEST SUMMARY * 2M * 32-bit 64-bit * Total testcases: 84 0 * Skipped: 0 0 * PASS: 66 0 * FAIL: 14 0 * Killed by signal: 0 0 * Bad configuration: 4 0 * Expected FAIL: 0 0 * Unexpected PASS: 0 0 * Test not present: 0 0 * Strange test result: 0 0 ********** - Failing tests: - elflink_rw_and_share_test("linkhuge_rw") segfaults with and without this patch series. - LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc (2M: 32): FAIL Address is not hugepage - LD_PRELOAD=libhugetlbfs.so HUGETLB_RESTRICT_EXE=unknown:malloc HUGETLB_MORECORE=yes malloc (2M: 32): FAIL Address is not hugepage - LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes malloc_manysmall (2M: 32): FAIL Address is not hugepage - GLIBC_TUNABLES=glibc.malloc.tcache_count=0 LD_PRELOAD=libhugetlbfs.so HUGETLB_MORECORE=yes heapshrink (2M: 32): FAIL Heap not on hugepages - GLIBC_TUNABLES=glibc.malloc.tcache_count=0 LD_PRELOAD=libhugetlbfs.so libheapshrink.so HUGETLB_MORECORE=yes heapshrink (2M: 32): FAIL Heap not on hugepages - HUGETLB_ELFMAP=RW linkhuge_rw (2M: 32): FAIL small_data is not hugepage - HUGETLB_ELFMAP=RW HUGETLB_MINIMAL_COPY=no linkhuge_rw (2M: 32): FAIL small_data is not hugepage - alloc-instantiate-race shared (2M: 32): Bad configuration: sched_setaffinity(cpu1): Invalid argument - FAIL Child 1 killed by signal Killed - shmoverride_linked (2M: 32): FAIL shmget failed size 2097152 from line 176: Invalid argument - HUGETLB_SHM=yes shmoverride_linked (2M: 32): FAIL shmget failed size 2097152 from line 176: Invalid argument - shmoverride_linked_static (2M: 32): FAIL shmget failed size 2097152 from line 176: Invalid argument - HUGETLB_SHM=yes shmoverride_linked_static (2M: 32): FAIL shmget failed size 2097152 from line 176: Invalid argument - LD_PRELOAD=libhugetlbfs.so shmoverride_unlinked (2M: 32): FAIL shmget failed size 2097152 from line 176: Invalid argument - LD_PRELOAD=libhugetlbfs.so HUGETLB_SHM=yes shmoverride_unlinked (2M: 32): FAIL shmget failed size 2097152 from line 176: Invalid argument [1]: https://www.kernel.org/doc/html/latest/vm/hugetlbfs_reserv.html Signed-off-by: Mina Almasry <almasrymina(a)google.com> Acked-by: Hillf Danton <hdanton(a)sina.com> --- include/linux/hugetlb.h | 23 ++++++++- mm/hugetlb_cgroup.c | 111 ++++++++++++++++++++++++++++++---------- 2 files changed, 107 insertions(+), 27 deletions(-) diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 53fc34f930d08..9c49a0ba894d3 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -320,6 +320,27 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, #ifdef CONFIG_HUGETLB_PAGE +enum { + /* Tracks hugetlb memory faulted in. */ + HUGETLB_RES_USAGE, + /* Tracks hugetlb memory reserved. */ + HUGETLB_RES_RESERVATION_USAGE, + /* Limit for hugetlb memory faulted in. */ + HUGETLB_RES_LIMIT, + /* Limit for hugetlb memory reserved. */ + HUGETLB_RES_RESERVATION_LIMIT, + /* Max usage for hugetlb memory faulted in. */ + HUGETLB_RES_MAX_USAGE, + /* Max usage for hugetlb memory reserved. */ + HUGETLB_RES_RESERVATION_MAX_USAGE, + /* Faulted memory accounting fail count. */ + HUGETLB_RES_FAILCNT, + /* Reserved memory accounting fail count. */ + HUGETLB_RES_RESERVATION_FAILCNT, + HUGETLB_RES_NULL, + HUGETLB_RES_MAX, +}; + #define HSTATE_NAME_LEN 32 /* Defines one hugetlb page size */ struct hstate { @@ -340,7 +361,7 @@ struct hstate { unsigned int surplus_huge_pages_node[MAX_NUMNODES]; #ifdef CONFIG_CGROUP_HUGETLB /* cgroup control files */ - struct cftype cgroup_files[5]; + struct cftype cgroup_files[HUGETLB_RES_MAX]; #endif char name[HSTATE_NAME_LEN]; }; diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c index f1930fa0b445d..1ed4448ca41d3 100644 --- a/mm/hugetlb_cgroup.c +++ b/mm/hugetlb_cgroup.c @@ -25,6 +25,10 @@ struct hugetlb_cgroup { * the counter to account for hugepages from hugetlb. */ struct page_counter hugepage[HUGE_MAX_HSTATE]; + /* + * the counter to account for hugepage reservations from hugetlb. + */ + struct page_counter reserved_hugepage[HUGE_MAX_HSTATE]; }; #define MEMFILE_PRIVATE(x, val) (((x) << 16) | (val)) @@ -33,6 +37,14 @@ struct hugetlb_cgroup { static struct hugetlb_cgroup *root_h_cgroup __read_mostly; +static inline struct page_counter * +hugetlb_cgroup_get_counter(struct hugetlb_cgroup *h_cg, int idx, bool reserved) +{ + if (reserved) + return &h_cg->reserved_hugepage[idx]; + return &h_cg->hugepage[idx]; +} + static inline struct hugetlb_cgroup *hugetlb_cgroup_from_css(struct cgroup_subsys_state *s) { @@ -254,30 +266,33 @@ void hugetlb_cgroup_uncharge_cgroup(int idx, unsigned long nr_pages, return; } -enum { - RES_USAGE, - RES_LIMIT, - RES_MAX_USAGE, - RES_FAILCNT, -}; - static u64 hugetlb_cgroup_read_u64(struct cgroup_subsys_state *css, struct cftype *cft) { struct page_counter *counter; + struct page_counter *reserved_counter; struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_css(css); counter = &h_cg->hugepage[MEMFILE_IDX(cft->private)]; + reserved_counter = &h_cg->reserved_hugepage[MEMFILE_IDX(cft->private)]; switch (MEMFILE_ATTR(cft->private)) { - case RES_USAGE: + case HUGETLB_RES_USAGE: return (u64)page_counter_read(counter) * PAGE_SIZE; - case RES_LIMIT: + case HUGETLB_RES_RESERVATION_USAGE: + return (u64)page_counter_read(reserved_counter) * PAGE_SIZE; + case HUGETLB_RES_LIMIT: return (u64)counter->max * PAGE_SIZE; - case RES_MAX_USAGE: + case HUGETLB_RES_RESERVATION_LIMIT: + return (u64)reserved_counter->max * PAGE_SIZE; + case HUGETLB_RES_MAX_USAGE: return (u64)counter->watermark * PAGE_SIZE; - case RES_FAILCNT: + case HUGETLB_RES_RESERVATION_MAX_USAGE: + return (u64)reserved_counter->watermark * PAGE_SIZE; + case HUGETLB_RES_FAILCNT: return counter->failcnt; + case HUGETLB_RES_RESERVATION_FAILCNT: + return reserved_counter->failcnt; default: BUG(); } @@ -291,6 +306,7 @@ static ssize_t hugetlb_cgroup_write(struct kernfs_open_file *of, int ret, idx; unsigned long nr_pages; struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_css(of_css(of)); + bool reserved = false; if (hugetlb_cgroup_is_root(h_cg)) /* Can't set limit on root */ return -EINVAL; @@ -304,9 +320,14 @@ static ssize_t hugetlb_cgroup_write(struct kernfs_open_file *of, nr_pages = round_down(nr_pages, 1 << huge_page_order(&hstates[idx])); switch (MEMFILE_ATTR(of_cft(of)->private)) { - case RES_LIMIT: + case HUGETLB_RES_RESERVATION_LIMIT: + reserved = true; + /* Fall through. */ + case HUGETLB_RES_LIMIT: mutex_lock(&hugetlb_limit_mutex); - ret = page_counter_set_max(&h_cg->hugepage[idx], nr_pages); + ret = page_counter_set_max(hugetlb_cgroup_get_counter(h_cg, idx, + reserved), + nr_pages); mutex_unlock(&hugetlb_limit_mutex); break; default: @@ -320,18 +341,26 @@ static ssize_t hugetlb_cgroup_reset(struct kernfs_open_file *of, char *buf, size_t nbytes, loff_t off) { int ret = 0; - struct page_counter *counter; + struct page_counter *counter, *reserved_counter; struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_css(of_css(of)); counter = &h_cg->hugepage[MEMFILE_IDX(of_cft(of)->private)]; + reserved_counter = + &h_cg->reserved_hugepage[MEMFILE_IDX(of_cft(of)->private)]; switch (MEMFILE_ATTR(of_cft(of)->private)) { - case RES_MAX_USAGE: + case HUGETLB_RES_MAX_USAGE: page_counter_reset_watermark(counter); break; - case RES_FAILCNT: + case HUGETLB_RES_RESERVATION_MAX_USAGE: + page_counter_reset_watermark(reserved_counter); + break; + case HUGETLB_RES_FAILCNT: counter->failcnt = 0; break; + case HUGETLB_RES_RESERVATION_FAILCNT: + reserved_counter->failcnt = 0; + break; default: ret = -EINVAL; break; @@ -357,37 +386,67 @@ static void __init __hugetlb_cgroup_file_init(int idx) struct hstate *h = &hstates[idx]; /* format the size */ - mem_fmt(buf, 32, huge_page_size(h)); + mem_fmt(buf, sizeof(buf), huge_page_size(h)); /* Add the limit file */ - cft = &h->cgroup_files[0]; + cft = &h->cgroup_files[HUGETLB_RES_LIMIT]; snprintf(cft->name, MAX_CFTYPE_NAME, "%s.limit_in_bytes", buf); - cft->private = MEMFILE_PRIVATE(idx, RES_LIMIT); + cft->private = MEMFILE_PRIVATE(idx, HUGETLB_RES_LIMIT); + cft->read_u64 = hugetlb_cgroup_read_u64; + cft->write = hugetlb_cgroup_write; + + /* Add the reservation limit file */ + cft = &h->cgroup_files[HUGETLB_RES_RESERVATION_LIMIT]; + snprintf(cft->name, MAX_CFTYPE_NAME, "%s.reservation_limit_in_bytes", + buf); + cft->private = MEMFILE_PRIVATE(idx, HUGETLB_RES_RESERVATION_LIMIT); cft->read_u64 = hugetlb_cgroup_read_u64; cft->write = hugetlb_cgroup_write; /* Add the usage file */ - cft = &h->cgroup_files[1]; + cft = &h->cgroup_files[HUGETLB_RES_USAGE]; snprintf(cft->name, MAX_CFTYPE_NAME, "%s.usage_in_bytes", buf); - cft->private = MEMFILE_PRIVATE(idx, RES_USAGE); + cft->private = MEMFILE_PRIVATE(idx, HUGETLB_RES_USAGE); + cft->read_u64 = hugetlb_cgroup_read_u64; + + /* Add the reservation usage file */ + cft = &h->cgroup_files[HUGETLB_RES_RESERVATION_USAGE]; + snprintf(cft->name, MAX_CFTYPE_NAME, "%s.reservation_usage_in_bytes", + buf); + cft->private = MEMFILE_PRIVATE(idx, HUGETLB_RES_RESERVATION_USAGE); cft->read_u64 = hugetlb_cgroup_read_u64; /* Add the MAX usage file */ - cft = &h->cgroup_files[2]; + cft = &h->cgroup_files[HUGETLB_RES_MAX_USAGE]; snprintf(cft->name, MAX_CFTYPE_NAME, "%s.max_usage_in_bytes", buf); - cft->private = MEMFILE_PRIVATE(idx, RES_MAX_USAGE); + cft->private = MEMFILE_PRIVATE(idx, HUGETLB_RES_MAX_USAGE); + cft->write = hugetlb_cgroup_reset; + cft->read_u64 = hugetlb_cgroup_read_u64; + + /* Add the MAX reservation usage file */ + cft = &h->cgroup_files[HUGETLB_RES_RESERVATION_MAX_USAGE]; + snprintf(cft->name, MAX_CFTYPE_NAME, + "%s.reservation_max_usage_in_bytes", buf); + cft->private = MEMFILE_PRIVATE(idx, HUGETLB_RES_RESERVATION_MAX_USAGE); cft->write = hugetlb_cgroup_reset; cft->read_u64 = hugetlb_cgroup_read_u64; /* Add the failcntfile */ - cft = &h->cgroup_files[3]; + cft = &h->cgroup_files[HUGETLB_RES_FAILCNT]; snprintf(cft->name, MAX_CFTYPE_NAME, "%s.failcnt", buf); - cft->private = MEMFILE_PRIVATE(idx, RES_FAILCNT); + cft->private = MEMFILE_PRIVATE(idx, HUGETLB_RES_FAILCNT); + cft->write = hugetlb_cgroup_reset; + cft->read_u64 = hugetlb_cgroup_read_u64; + + /* Add the reservation failcntfile */ + cft = &h->cgroup_files[HUGETLB_RES_RESERVATION_FAILCNT]; + snprintf(cft->name, MAX_CFTYPE_NAME, "%s.reservation_failcnt", buf); + cft->private = MEMFILE_PRIVATE(idx, HUGETLB_RES_RESERVATION_FAILCNT); cft->write = hugetlb_cgroup_reset; cft->read_u64 = hugetlb_cgroup_read_u64; /* NULL terminate the last cft */ - cft = &h->cgroup_files[4]; + cft = &h->cgroup_files[HUGETLB_RES_NULL]; memset(cft, 0, sizeof(*cft)); WARN_ON(cgroup_add_legacy_cftypes(&hugetlb_cgrp_subsys, -- 2.24.0.rc1.363.gb1bccd3e3d-goog

5 years, 9 months

3
23
0 0

[PATCH 00/19] pin_user_pages(): reduced-risk series for Linux 5.5

by John Hubbard

Hi, Here is a set of well-reviewed (expect for one patch), lower-risk items that can go into Linux 5.5. The one patch that wasn't reviewed is the powerpc conversion, and it's still at this point a no-op, because tracking isn't yet activated. This is based on linux-next: b9d3d01405061bb42358fe53f824e894a1922ced ("Add linux-next specific files for 20191122"). This is essentially a cut-down v8 of "mm/gup: track dma-pinned pages: FOLL_PIN" [1], and with one of the VFIO patches split into two patches. The idea here is to get this long list of "noise" checked into 5.5, so that the actual, higher-risk "track FOLL_PIN pages" (which is deferred: not part of this series) will be a much shorter patchset to review. For the v4l2-core changes, I've left those here (instead of sending them separately to the -media tree), in order to get the name change done now (put_user_page --> unpin_user_page). However, I've added a Cc stable, as recommended during the last round of reviews. Here are the relevant notes from the original cover letter, edited to match the current situation: This is a prerequisite to tracking dma-pinned pages. That in turn is a prerequisite to solving the larger problem of proper interactions between file-backed pages, and [R]DMA activities, as discussed in [1], [2], [3], and in a remarkable number of email threads since about 2017. :) A new internal gup flag, FOLL_PIN is introduced, and thoroughly documented in the last patch's Documentation/vm/pin_user_pages.rst. I believe that this will provide a good starting point for doing the layout lease work that Ira Weiny has been working on. That's because these new wrapper functions provide a clean, constrained, systematically named set of functionality that, again, is required in order to even know if a page is "dma-pinned". In contrast to earlier approaches, the page tracking can be incrementally applied to the kernel call sites that, until now, have been simply calling get_user_pages() ("gup"). In other words, opt-in by changing from this: get_user_pages() (sets FOLL_GET) put_page() to this: pin_user_pages() (sets FOLL_PIN) put_user_page() Because there are interdependencies with FOLL_LONGTERM, a similar conversion as for FOLL_PIN, was applied. The change was from this: get_user_pages(FOLL_LONGTERM) (also sets FOLL_GET) put_page() to this: pin_longterm_pages() (sets FOLL_PIN | FOLL_LONGTERM) put_user_page() [1] https://lore.kernel.org/r/20191121071354.456618-1-jhubbard@nvidia.com thanks, John Hubbard NVIDIA Dan Williams (1): mm: Cleanup __put_devmap_managed_page() vs ->page_free() John Hubbard (18): mm/gup: factor out duplicate code from four routines mm/gup: move try_get_compound_head() to top, fix minor issues goldish_pipe: rename local pin_user_pages() routine mm: fix get_user_pages_remote()'s handling of FOLL_LONGTERM vfio: fix FOLL_LONGTERM use, simplify get_user_pages_remote() call mm/gup: introduce pin_user_pages*() and FOLL_PIN goldish_pipe: convert to pin_user_pages() and put_user_page() IB/{core,hw,umem}: set FOLL_PIN via pin_user_pages*(), fix up ODP mm/process_vm_access: set FOLL_PIN via pin_user_pages_remote() drm/via: set FOLL_PIN via pin_user_pages_fast() fs/io_uring: set FOLL_PIN via pin_user_pages() net/xdp: set FOLL_PIN via pin_user_pages() media/v4l2-core: set pages dirty upon releasing DMA buffers media/v4l2-core: pin_user_pages (FOLL_PIN) and put_user_page() conversion vfio, mm: pin_user_pages (FOLL_PIN) and put_user_page() conversion powerpc: book3s64: convert to pin_user_pages() and put_user_page() mm/gup_benchmark: use proper FOLL_WRITE flags instead of hard-coding "1" mm, tree-wide: rename put_user_page*() to unpin_user_page*() Documentation/core-api/index.rst | 1 + Documentation/core-api/pin_user_pages.rst | 233 ++++++++++++++ arch/powerpc/mm/book3s64/iommu_api.c | 12 +- drivers/gpu/drm/via/via_dmablit.c | 6 +- drivers/infiniband/core/umem.c | 4 +- drivers/infiniband/core/umem_odp.c | 13 +- drivers/infiniband/hw/hfi1/user_pages.c | 4 +- drivers/infiniband/hw/mthca/mthca_memfree.c | 8 +- drivers/infiniband/hw/qib/qib_user_pages.c | 4 +- drivers/infiniband/hw/qib/qib_user_sdma.c | 8 +- drivers/infiniband/hw/usnic/usnic_uiom.c | 4 +- drivers/infiniband/sw/siw/siw_mem.c | 4 +- drivers/media/v4l2-core/videobuf-dma-sg.c | 8 +- drivers/nvdimm/pmem.c | 6 - drivers/platform/goldfish/goldfish_pipe.c | 35 +-- drivers/vfio/vfio_iommu_type1.c | 35 +-- fs/io_uring.c | 6 +- include/linux/mm.h | 77 +++-- mm/gup.c | 332 +++++++++++++------- mm/gup_benchmark.c | 9 +- mm/memremap.c | 80 ++--- mm/process_vm_access.c | 28 +- net/xdp/xdp_umem.c | 4 +- tools/testing/selftests/vm/gup_benchmark.c | 6 +- 24 files changed, 642 insertions(+), 285 deletions(-) create mode 100644 Documentation/core-api/pin_user_pages.rst -- 2.24.0

5 years, 9 months

3
24
0 0

[BUGFIX PATCH v2 0/3] selftests/ftrace: Fix ftracetest testcases for non-function tracer case

by Masami Hiramatsu

Hi, Here is the 2nd version of patches to fix some issues which happens on the kernel with CONFIG_FUNCTION_TRACER=n or CONFIG_DYNAMIC_FTRACE=n. In this version I just updated the descriptions of the first 2 patches according to Steve's comment and add his Reviewed-by to the last patch. Thank you, --- Masami Hiramatsu (3): selftests/ftrace: Fix to check the existence of set_ftrace_filter selftests/ftrace: Fix ftrace test cases to check unsupported selftests/ftrace: Do not to use absolute debugfs path .../ftrace/test.d/ftrace/func-filter-stacktrace.tc | 2 ++ .../selftests/ftrace/test.d/ftrace/func_cpumask.tc | 5 +++++ tools/testing/selftests/ftrace/test.d/functions | 4 +++- .../inter-event/trigger-action-hist-xfail.tc | 4 ++-- .../inter-event/trigger-onchange-action-hist.tc | 2 +- .../inter-event/trigger-snapshot-action-hist.tc | 4 ++-- 6 files changed, 15 insertions(+), 6 deletions(-) -- Masami Hiramatsu (Linaro) <mhiramat(a)kernel.org>

5 years, 9 months

1
4
0 0

[BUGFIX PATCH 0/3] selftests/ftrace: Fix ftracetest testcases for non-function tracer case

by Masami Hiramatsu

Hi, Here is a series of patches to fix some issues which happens on the kernel with CONFIG_FUNCTION_TRACER=n but CONFIG_TRACER=y. Thank you, --- Masami Hiramatsu (3): selftests/ftrace: Fix to check the existence of set_ftrace_filter selftests/ftrace: Fix ftrace test cases to check unsupported selftests/ftrace: Do not to use absolute debugfs path .../ftrace/test.d/ftrace/func-filter-stacktrace.tc | 2 ++ .../selftests/ftrace/test.d/ftrace/func_cpumask.tc | 5 +++++ tools/testing/selftests/ftrace/test.d/functions | 4 +++- .../inter-event/trigger-action-hist-xfail.tc | 4 ++-- .../inter-event/trigger-onchange-action-hist.tc | 2 +- .../inter-event/trigger-snapshot-action-hist.tc | 4 ++-- 6 files changed, 15 insertions(+), 6 deletions(-) -- Masami Hiramatsu (Linaro) <mhiramat(a)kernel.org>

5 years, 9 months

2
8
0 0

[PATCH AUTOSEL 4.19 14/25] selftests: kvm: fix build with glibc >= 2.30

by Sasha Levin

From: Vitaly Kuznetsov <vkuznets(a)redhat.com> [ Upstream commit e37f9f139f62deddff90c7298ae3a85026a71067 ] Glibc-2.30 gained gettid() wrapper, selftests fail to compile: lib/assert.c:58:14: error: static declaration of ‘gettid’ follows non-static declaration 58 | static pid_t gettid(void) | ^~~~~~ In file included from /usr/include/unistd.h:1170, from include/test_util.h:18, from lib/assert.c:10: /usr/include/bits/unistd_ext.h:34:16: note: previous declaration of ‘gettid’ was here 34 | extern __pid_t gettid (void) __THROW; | ^~~~~~ Signed-off-by: Vitaly Kuznetsov <vkuznets(a)redhat.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/kvm/lib/assert.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/kvm/lib/assert.c b/tools/testing/selftests/kvm/lib/assert.c index cd01144d27c8d..d306677065699 100644 --- a/tools/testing/selftests/kvm/lib/assert.c +++ b/tools/testing/selftests/kvm/lib/assert.c @@ -56,7 +56,7 @@ static void test_dump_stack(void) #pragma GCC diagnostic pop } -static pid_t gettid(void) +static pid_t _gettid(void) { return syscall(SYS_gettid); } @@ -73,7 +73,7 @@ test_assert(bool exp, const char *exp_str, fprintf(stderr, "==== Test Assertion Failure ====\n" " %s:%u: %s\n" " pid=%d tid=%d - %s\n", - file, line, exp_str, getpid(), gettid(), + file, line, exp_str, getpid(), _gettid(), strerror(errno)); test_dump_stack(); if (fmt) { -- 2.20.1

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next-20191122 kselftest results

by ci_notify＠linaro.org

Summary ------------------------------------------------------------------------ kernel: 5.4.0-rc8 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git branch: master git commit: b9d3d01405061bb42358fe53f824e894a1922ced git describe: next-20191122 Test details: https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20191122 Regressions (compared to build next-20191121) ------------------------------------------------------------------------ No regressions Fixes (compared to build next-20191121) ------------------------------------------------------------------------ No fixes In total: ------------------------------------------------------------------------ Ran 1294 total tests in the following environments and test suites. pass 684 fail 515 xfail 0 skip 95 Environments -------------- - dragonboard-410c - arm64 - hi6220-hikey - arm64 - i386 - juno-r2 - arm64 - qemu_arm64 - qemu_x86_64 - x15 - arm - x86_64 Test Suites ----------- * kselftest * kselftest-vsyscall-mode-native * kselftest-vsyscall-mode-none Failures ------------------------------------------------------------------------ dragonboard-410c: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_duplicated_fpsimd * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lpm_map * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/clone3_clone3 * kselftest/clone3_clone3_clear_sighand * kselftest/clone3_clone3_set_tid hi6220-hikey: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_duplicated_fpsimd * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lpm_map * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/clone3_clone3 * kselftest/clone3_clone3_clear_sighand * kselftest/clone3_clone3_set_tid * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_mmio_warning_test * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest/kvm_xss_msr_test * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_rule_tests.sh * kselftest/net_fib_tests.sh * kselftest/netfilter_conntrack_icmp_related.sh * kselftest/netfilter_nft_nat.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_run_netsocktests * kselftest/net_tcp_fastopen_backup_key.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/pidfd_pidfd_fdinfo_test * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pidfd_pidfd_test * kselftest/pidfd_pidfd_wait * kselftest/pstore_pstore_tests * kselftest/rseq_basic_percpu_ops_test * kselftest/rtc_rtctest * kselftest/seccomp_seccomp_benchmark * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh qemu_x86_64: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/cpufreq_main.sh * kselftest/firmware_fw_run_tests.sh * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_xss_msr_test * kselftest/mqueue_mq_perf_tests * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_tests.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_run_netsocktests * kselftest/net_so_txtime.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_traceroute.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/net_xfrm_policy.sh * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pstore_pstore_tests * kselftest/rseq_run_param_test.sh * kselftest/rtc_rtctest * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh * kselftest/vm_run_vmtests * kselftest/x86_fsgsbase_64 * kselftest/x86_iopl_64 qemu_arm64: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_duplicated_fpsimd * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lpm_map * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/clone3_clone3 * kselftest/clone3_clone3_clear_sighand * kselftest/clone3_clone3_set_tid * kselftest/cpufreq_main.sh * kselftest/firmware_fw_run_tests.sh * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_mmio_warning_test * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest/kvm_xss_msr_test * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_rule_tests.sh * kselftest/net_fib_tests.sh * kselftest/netfilter_conntrack_icmp_related.sh * kselftest/netfilter_nft_nat.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_run_netsocktests * kselftest/net_tcp_fastopen_backup_key.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/pidfd_pidfd_fdinfo_test * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pidfd_pidfd_test * kselftest/pidfd_pidfd_wait * kselftest/pstore_pstore_tests * kselftest/rseq_basic_percpu_ops_test * kselftest/rtc_rtctest * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh x86: * kselftest/bpf_get_cgroup_id_user * kselftest-vsyscall-mode-native/bpf_get_cgroup_id_user * kselftest-vsyscall-mode-none/bpf_get_cgroup_id_user * kselftest-vsyscall-mode-native/bpf_test_dev_cgroup * kselftest-vsyscall-mode-none/bpf_test_dev_cgroup * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest-vsyscall-mode-none/bpf_test_flow_dissector.sh * kselftest-vsyscall-mode-native/bpf_test_flow_dissector.sh * kselftest-vsyscall-mode-native/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_ip_encap.sh * kselftest-vsyscall-mode-none/bpf_test_lwt_ip_encap.sh * kselftest-vsyscall-mode-native/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest-vsyscall-mode-none/bpf_test_lwt_seg6local.sh * kselftest-vsyscall-mode-none/bpf_test_maps * kselftest-vsyscall-mode-native/bpf_test_maps * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest-vsyscall-mode-native/bpf_test_netcnt * kselftest-vsyscall-mode-none/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest-vsyscall-mode-none/bpf_test_progs * kselftest-vsyscall-mode-native/bpf_test_progs * kselftest-vsyscall-mode-native/bpf_test_progs-no_alu32 * kselftest-vsyscall-mode-none/bpf_test_progs-no_alu32 * kselftest/bpf_test_progs-no_alu32 * kselftest-vsyscall-mode-none/bpf_test_select_reuseport * kselftest/bpf_test_select_reuseport * kselftest-vsyscall-mode-native/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest-vsyscall-mode-none/bpf_test_skb_cgroup_id.sh * kselftest-vsyscall-mode-native/bpf_test_skb_cgroup_id.sh * kselftest-vsyscall-mode-native/bpf_test_sock_addr.sh * kselftest/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-none/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-native/bpf_test_socket_cookie * kselftest/bpf_test_socket_cookie * kselftest-vsyscall-mode-none/bpf_test_socket_cookie * kselftest-vsyscall-mode-none/bpf_test_sock_fields * kselftest/bpf_test_sock_fields * kselftest-vsyscall-mode-native/bpf_test_sock_fields * kselftest-vsyscall-mode-none/bpf_test_sockmap * kselftest-vsyscall-mode-native/bpf_test_sockmap * kselftest/bpf_test_sockmap * kselftest-vsyscall-mode-none/bpf_test_sysctl * kselftest/bpf_test_sysctl * kselftest-vsyscall-mode-native/bpf_test_sysctl * kselftest-vsyscall-mode-none/bpf_test_tc_edt.sh * kselftest-vsyscall-mode-native/bpf_test_tc_edt.sh * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest-vsyscall-mode-native/bpf_test_tcpbpf_user * kselftest-vsyscall-mode-none/bpf_test_tcpbpf_user * kselftest-vsyscall-mode-none/bpf_test_tcp_check_syncookie.sh * kselftest-vsyscall-mode-native/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest-vsyscall-mode-native/bpf_test_tcpnotify_user * kselftest-vsyscall-mode-none/bpf_test_tcpnotify_user * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest-vsyscall-mode-native/bpf_test_tc_tunnel.sh * kselftest-vsyscall-mode-none/bpf_test_tc_tunnel.sh * kselftest-vsyscall-mode-none/bpf_test_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest-vsyscall-mode-native/bpf_test_tunnel.sh * kselftest/bpf_test_xdping.sh * kselftest-vsyscall-mode-native/bpf_test_xdping.sh * kselftest-vsyscall-mode-none/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_meta.sh * kselftest-vsyscall-mode-native/bpf_test_xdp_meta.sh * kselftest-vsyscall-mode-none/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest-vsyscall-mode-native/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest-vsyscall-mode-native/bpf_test_xdp_vlan_mode_generic.sh * kselftest-vsyscall-mode-none/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest-vsyscall-mode-none/bpf_test_xdp_vlan_mode_native.sh * kselftest-vsyscall-mode-native/bpf_test_xdp_vlan_mode_native.sh * kselftest-vsyscall-mode-none/cgroup_test_freezer * kselftest/firmware_fw_run_tests.sh * kselftest-vsyscall-mode-native/firmware_fw_run_tests.sh * kselftest-vsyscall-mode-none/firmware_fw_run_tests.sh * kselftest-vsyscall-mode-native/intel_pstate_run.sh * kselftest-vsyscall-mode-none/intel_pstate_run.sh * kselftest/intel_pstate_run.sh * kselftest/kvm_clear_dirty_log_test * kselftest-vsyscall-mode-none/kvm_clear_dirty_log_test * kselftest-vsyscall-mode-native/kvm_clear_dirty_log_test * kselftest-vsyscall-mode-native/kvm_cr4_cpuid_sync_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest-vsyscall-mode-none/kvm_cr4_cpuid_sync_test * kselftest-vsyscall-mode-none/kvm_dirty_log_test * kselftest-vsyscall-mode-native/kvm_dirty_log_test * kselftest/kvm_dirty_log_test * kselftest-vsyscall-mode-none/kvm_evmcs_test * kselftest-vsyscall-mode-native/kvm_evmcs_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest-vsyscall-mode-none/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest-vsyscall-mode-none/kvm_kvm_create_max_vcpus * kselftest-vsyscall-mode-native/kvm_kvm_create_max_vcpus * kselftest/kvm_platform_info_test * kselftest-vsyscall-mode-none/kvm_platform_info_test * kselftest-vsyscall-mode-native/kvm_platform_info_test * kselftest-vsyscall-mode-none/kvm_set_sregs_test * kselftest-vsyscall-mode-native/kvm_set_sregs_test * kselftest/kvm_set_sregs_test * kselftest-vsyscall-mode-none/kvm_smm_test * kselftest/kvm_smm_test * kselftest-vsyscall-mode-native/kvm_smm_test * kselftest/kvm_state_test * kselftest-vsyscall-mode-none/kvm_state_test * kselftest-vsyscall-mode-native/kvm_state_test * kselftest-vsyscall-mode-none/kvm_sync_regs_test * kselftest-vsyscall-mode-native/kvm_sync_regs_test * kselftest/kvm_sync_regs_test * kselftest-vsyscall-mode-native/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_close_while_nested_test * kselftest-vsyscall-mode-none/kvm_vmx_close_while_nested_test * kselftest-vsyscall-mode-native/kvm_vmx_dirty_log_test * kselftest-vsyscall-mode-none/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_set_nested_state_test * kselftest-vsyscall-mode-native/kvm_vmx_set_nested_state_test * kselftest-vsyscall-mode-none/kvm_vmx_set_nested_state_test * kselftest-vsyscall-mode-native/kvm_vmx_tsc_adjust_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest-vsyscall-mode-none/kvm_vmx_tsc_adjust_test * kselftest-vsyscall-mode-none/kvm_xss_msr_test * kselftest/kvm_xss_msr_test * kselftest-vsyscall-mode-native/kvm_xss_msr_test * kselftest/mqueue_mq_perf_tests * kselftest-vsyscall-mode-none/mqueue_mq_perf_tests * kselftest-vsyscall-mode-native/mqueue_mq_perf_tests * kselftest-vsyscall-mode-none/net_fib-onlink-tests.sh * kselftest/net_fib-onlink-tests.sh * kselftest-vsyscall-mode-native/net_fib_tests.sh * kselftest/net_fib_tests.sh * kselftest-vsyscall-mode-none/net_fib_tests.sh * kselftest-vsyscall-mode-none/net_ip_defrag.sh * kselftest/net_ip_defrag.sh * kselftest-vsyscall-mode-native/net_ip_defrag.sh * kselftest-vsyscall-mode-none/net_l2tp.sh * kselftest-vsyscall-mode-native/net_l2tp.sh * kselftest/net_l2tp.sh * kselftest-vsyscall-mode-none/net_pmtu.sh * kselftest/net_pmtu.sh * kselftest-vsyscall-mode-native/net_pmtu.sh * kselftest-vsyscall-mode-native/net_psock_snd.sh * kselftest-vsyscall-mode-none/net_psock_snd.sh * kselftest/net_psock_snd.sh * kselftest/net_run_netsocktests * kselftest-vsyscall-mode-native/net_run_netsocktests * kselftest-vsyscall-mode-none/net_run_netsocktests * kselftest/net_so_txtime.sh * kselftest-vsyscall-mode-none/net_test_vxlan_under_vrf.sh * kselftest-vsyscall-mode-native/net_test_vxlan_under_vrf.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest-vsyscall-mode-native/net_traceroute.sh * kselftest-vsyscall-mode-none/net_traceroute.sh * kselftest/net_traceroute.sh * kselftest/net_udpgro_bench.sh * kselftest-vsyscall-mode-none/net_udpgro_bench.sh * kselftest-vsyscall-mode-native/net_udpgro_bench.sh * kselftest-vsyscall-mode-native/net_udpgro.sh * kselftest/net_udpgro.sh * kselftest-vsyscall-mode-none/net_udpgro.sh * kselftest-vsyscall-mode-none/net_udpgso_bench.sh * kselftest-vsyscall-mode-native/net_udpgso_bench.sh * kselftest/net_udpgso_bench.sh * kselftest/net_xfrm_policy.sh * kselftest-vsyscall-mode-native/net_xfrm_policy.sh * kselftest-vsyscall-mode-none/net_xfrm_policy.sh * kselftest-vsyscall-mode-native/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_open_test * kselftest-vsyscall-mode-none/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest-vsyscall-mode-native/pidfd_pidfd_poll_test * kselftest-vsyscall-mode-none/pidfd_pidfd_poll_test * kselftest-vsyscall-mode-none/pstore_pstore_tests * kselftest-vsyscall-mode-native/pstore_pstore_tests * kselftest/pstore_pstore_tests * kselftest-vsyscall-mode-native/rseq_run_param_test.sh * kselftest/rseq_run_param_test.sh * kselftest-vsyscall-mode-none/rseq_run_param_test.sh * kselftest/rtc_rtctest * kselftest-vsyscall-mode-native/rtc_rtctest * kselftest-vsyscall-mode-none/rtc_rtctest * kselftest/seccomp_seccomp_benchmark * kselftest-vsyscall-mode-none/seccomp_seccomp_benchmark * kselftest-vsyscall-mode-native/seccomp_seccomp_benchmark * kselftest-vsyscall-mode-native/timers_set-timer-lat * kselftest/timers_set-timer-lat * kselftest-vsyscall-mode-none/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest-vsyscall-mode-native/timestamping_txtimestamp.sh * kselftest-vsyscall-mode-none/timestamping_txtimestamp.sh * kselftest-vsyscall-mode-native/tpm2_test_smoke.sh * kselftest-vsyscall-mode-none/tpm2_test_smoke.sh * kselftest/tpm2_test_smoke.sh * kselftest-vsyscall-mode-none/tpm2_test_space.sh * kselftest-vsyscall-mode-native/tpm2_test_space.sh * kselftest/tpm2_test_space.sh * kselftest/vm_run_vmtests * kselftest-vsyscall-mode-native/vm_run_vmtests * kselftest-vsyscall-mode-none/vm_run_vmtests * kselftest-vsyscall-mode-none/x86_iopl_64 * kselftest/x86_iopl_64 * kselftest-vsyscall-mode-native/x86_iopl_64 x15: i386: Skips ------------------------------------------------------------------------ No skips -- Linaro LKFT https://lkft.linaro.org

5 years, 10 months

1
0
0 0

[PATCH] selftests: Load settings from subdirs

by Kees Cook

If settings files are present in upper directories of a test directory, load those first before the local settings. This allows a top-level directory to define settings for subdirectories while still allowing the subdirectories to override them on a per-directory basis. Signed-off-by: Kees Cook <keescook(a)chromium.org> --- Note that this depends on Matt's patch: https://lore.kernel.org/lkml/20191022171223.27934-1-matthieu.baerts@tessare… --- tools/testing/selftests/kselftest/runner.sh | 30 +++++++++++++++------ 1 file changed, 22 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/kselftest/runner.sh b/tools/testing/selftests/kselftest/runner.sh index 84de7bc74f2c..666cfeaa8046 100644 --- a/tools/testing/selftests/kselftest/runner.sh +++ b/tools/testing/selftests/kselftest/runner.sh @@ -39,6 +39,27 @@ tap_timeout() fi } +load_settings() +{ + local fullpath="$1" + local upperpath=${fullpath%/*} + + # Load upper path settings first. + if [ "$fullpath" != "$upperpath" ] ; then + load_settings "$upperpath" + fi + + # Load per-test-directory kselftest "settings" file. + local settings="$BASE_DIR/$fullpath/settings" + if [ -r "$settings" ] ; then + while read line ; do + local field=$(echo "$line" | cut -d= -f1) + local value=$(echo "$line" | cut -d= -f2-) + eval "kselftest_$field"="$value" + done < "$settings" + fi +} + run_one() { DIR="$1" @@ -50,14 +71,7 @@ run_one() # Reset any "settings"-file variables. export kselftest_timeout="$kselftest_default_timeout" # Load per-test-directory kselftest "settings" file. - settings="$BASE_DIR/$DIR/settings" - if [ -r "$settings" ] ; then - while read line ; do - field=$(echo "$line" | cut -d= -f1) - value=$(echo "$line" | cut -d= -f2-) - eval "kselftest_$field"="$value" - done < "$settings" - fi + load_settings "$DIR" TEST_HDR_MSG="selftests: $DIR: $BASENAME_TEST" echo "# $TEST_HDR_MSG" -- 2.17.1 -- Kees Cook

5 years, 10 months

1
0
0 0

next-20191121 kselftest results

by ci_notify＠linaro.org

Summary ------------------------------------------------------------------------ kernel: 5.4.0-rc8 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git branch: master git commit: 9942eae47585ee056b140bbfa306f6a1d6b8f383 git describe: next-20191121 Test details: https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20191121 Regressions (compared to build next-20191120) ------------------------------------------------------------------------ No regressions Fixes (compared to build next-20191120) ------------------------------------------------------------------------ No fixes In total: ------------------------------------------------------------------------ Ran 51 total tests in the following environments and test suites. pass 9 fail 42 xfail 0 skip 0 Environments -------------- - dragonboard-410c - arm64 - hi6220-hikey - arm64 - i386 - juno-r2 - arm64 - qemu_arm64 - qemu_x86_64 - x15 - arm - x86_64 Test Suites ----------- * kselftest Failures ------------------------------------------------------------------------ dragonboard-410c: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_duplicated_fpsimd * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t hi6220-hikey: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_duplicated_fpsimd * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t x15: i386: x86: qemu_arm64: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_duplicated_fpsimd * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t Skips ------------------------------------------------------------------------ No skips -- Linaro LKFT https://lkft.linaro.org

5 years, 10 months

1
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0 0

selftest/net: so_txtime.sh fails intermittently - read Resource temporarily unavailable

by Naresh Kamboju

selftests net so_txtime.sh fails intermittently on multiple boards and linux next and mainline. # selftests net so_txtime.sh net: so_txtime.sh_ # # : _ # # SO_TXTIME ipv6 clock monotonic ipv6: clock_monotonic # # payloada delay452 expected0 (us) delay452: expected0_(us) # # : _ # # SO_TXTIME ipv4 clock monotonic ipv4: clock_monotonic # # payloada delay97 expected0 (us) delay97: expected0_(us) # # : _ # # SO_TXTIME ipv6 clock monotonic ipv6: clock_monotonic # # payloada delay168 expected0 (us) delay168: expected0_(us) # # : _ # # SO_TXTIME ipv4 clock monotonic ipv4: clock_monotonic # # payloada delay90 expected0 (us) delay90: expected0_(us) # # : _ # # SO_TXTIME ipv6 clock monotonic ipv6: clock_monotonic # # payloada delay10146 expected10000 (us) delay10146: expected10000_(us) # # : _ # # SO_TXTIME ipv4 clock monotonic ipv4: clock_monotonic # # payloada delay10146 expected10000 (us) delay10146: expected10000_(us) # # : _ # # SO_TXTIME ipv6 clock monotonic ipv6: clock_monotonic # # payloada delay10261 expected10000 (us) delay10261: expected10000_(us) # # payloadb delay20211 expected20000 (us) delay20211: expected20000_(us) # # : _ # # SO_TXTIME ipv4 clock monotonic ipv4: clock_monotonic # # payloada delay10186 expected10000 (us) delay10186: expected10000_(us) # # payloadb delay20387 expected20000 (us) delay20387: expected20000_(us) # # : _ # # SO_TXTIME ipv6 clock monotonic ipv6: clock_monotonic # # payloadb delay20238 expected20000 (us) delay20238: expected20000_(us) # # payloada delay20294 expected20000 (us) delay20294: expected20000_(us) # # : _ # # SO_TXTIME ipv4 clock monotonic ipv4: clock_monotonic # # payloadb delay20258 expected20000 (us) delay20258: expected20000_(us) # # payloada delay20313 expected20000 (us) delay20313: expected20000_(us) # # : _ # # SO_TXTIME ipv6 clock tai ipv6: clock_tai # # ./so_txtime read Resource temporarily unavailable read: Resource_temporarily # # : _ # # SO_TXTIME ipv6 clock tai ipv6: clock_tai # # ./so_txtime read Resource temporarily unavailable read: Resource_temporarily # # : _ # # SO_TXTIME ipv6 clock tai ipv6: clock_tai # # payloada delay10097 expected10000 (us) delay10097: expected10000_(us) # # : _ # # SO_TXTIME ipv4 clock tai ipv4: clock_tai # # payloada delay9957 expected10000 (us) delay9957: expected10000_(us) # # : _ # # SO_TXTIME ipv6 clock tai ipv6: clock_tai # # payloada delay10382 expected10000 (us) delay10382: expected10000_(us) # # ./so_txtime read Resource temporarily unavailable read: Resource_temporarily # [FAIL] 24 selftests net so_txtime.sh # exit=1 selftests: net_so_txtime.sh [FAIL] Test run full log, https://lkft.validation.linaro.org/scheduler/job/1010545#L1234 Test results comparison link, https://qa-reports.linaro.org/lkft/linux-next-oe/tests/kselftest/net_so_txt… https://qa-reports.linaro.org/lkft/linux-mainline-oe/tests/kselftest/net_so… Best regards Naresh Kamboju

5 years, 10 months

2
3
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[PATCH linux-kselftest/test v3] Documentation: kunit: add documentation for kunit_tool

by Brendan Higgins

Add documentation for the Python script used to build, run, and collect results from the kernel known as kunit_tool. kunit_tool (tools/testing/kunit/kunit.py) was already added in previous commits. Signed-off-by: Brendan Higgins <brendanhiggins(a)google.com> Reviewed-by: David Gow <davidgow(a)google.com> --- Documentation/dev-tools/kunit/index.rst | 1 + Documentation/dev-tools/kunit/kunit-tool.rst | 57 ++++++++++++++++++++ Documentation/dev-tools/kunit/start.rst | 5 +- 3 files changed, 62 insertions(+), 1 deletion(-) create mode 100644 Documentation/dev-tools/kunit/kunit-tool.rst diff --git a/Documentation/dev-tools/kunit/index.rst b/Documentation/dev-tools/kunit/index.rst index 26ffb46bdf99d..c60d760a0eed1 100644 --- a/Documentation/dev-tools/kunit/index.rst +++ b/Documentation/dev-tools/kunit/index.rst @@ -9,6 +9,7 @@ KUnit - Unit Testing for the Linux Kernel start usage + kunit-tool api/index faq diff --git a/Documentation/dev-tools/kunit/kunit-tool.rst b/Documentation/dev-tools/kunit/kunit-tool.rst new file mode 100644 index 0000000000000..37509527c04e1 --- /dev/null +++ b/Documentation/dev-tools/kunit/kunit-tool.rst @@ -0,0 +1,57 @@ +.. SPDX-License-Identifier: GPL-2.0 + +================= +kunit_tool How-To +================= + +What is kunit_tool? +=================== + +kunit_tool is a script (``tools/testing/kunit/kunit.py``) that aids in building +the Linux kernel as UML (`User Mode Linux +<http://user-mode-linux.sourceforge.net/>`_), running KUnit tests, parsing +the test results and displaying them in a user friendly manner. + +What is a kunitconfig? +====================== + +It's just a defconfig that kunit_tool looks for in the base directory. +kunit_tool uses it to generate a .config as you might expect. In addition, it +verifies that the generated .config contains the CONFIG options in the +kunitconfig; the reason it does this is so that it is easy to be sure that a +CONFIG that enables a test actually ends up in the .config. + +How do I use kunit_tool? +================================= + +If a kunitconfig is present at the root directory, all you have to do is: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run + +However, you most likely want to use it with the following options: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all` + +- ``--timeout`` sets a maximum amount of time to allow tests to run. +- ``--jobs`` sets the number of threads to use to build the kernel. + +If you just want to use the defconfig that ships with the kernel, you can +append the ``--defconfig`` flag as well: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all` --defconfig + +.. note:: + This command is particularly helpful for getting started because it + just works. No kunitconfig needs to be present. + +For a list of all the flags supported by kunit_tool, you can run: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --help diff --git a/Documentation/dev-tools/kunit/start.rst b/Documentation/dev-tools/kunit/start.rst index aeeddfafeea20..f4d9a4fa914f8 100644 --- a/Documentation/dev-tools/kunit/start.rst +++ b/Documentation/dev-tools/kunit/start.rst @@ -19,7 +19,10 @@ The wrapper can be run with: .. code-block:: bash - ./tools/testing/kunit/kunit.py run + ./tools/testing/kunit/kunit.py run --defconfig + +For more information on this wrapper (also called kunit_tool) checkout the +:doc:`kunit-tool` page. Creating a kunitconfig ====================== -- 2.24.0.432.g9d3f5f5b63-goog

5 years, 10 months

3
5
0 0

[PATCH v4 linux-kselftest-test 0/6] kunit: support building core/tests as modules

by Alan Maguire

The current kunit execution model is to provide base kunit functionality and tests built-in to the kernel. The aim of this series is to allow building kunit itself and tests as modules. This in turn allows a simple form of selective execution; load the module you wish to test. In doing so, kunit itself (if also built as a module) will be loaded as an implicit dependency. Because this requires a core API modification - if a module delivers multiple suites, they must be declared with the kunit_test_suites() macro - we're proposing this patch set as a candidate to be applied to the test tree before too many kunit consumers appear. We attempt to deal with existing consumers in patch 3. Changes since v3: - removed symbol lookup patch for separate submission later - removed use of sysctl_hung_task_timeout_seconds (patch 4, as discussed with Brendan and Stephen) - disabled build of string-stream-test when CONFIG_KUNIT_TEST=m; this is to avoid having to deal with symbol lookup issues - changed string-stream-impl.h back to string-stream.h (Brendan) - added module build support to new list, ext4 tests Changes since v2: - moved string-stream.h header to lib/kunit/string-stream-impl.h (Brendan) (patch 1) - split out non-exported interfaces in try-catch-impl.h (Brendan) (patch 2) - added kunit_find_symbol() and KUNIT_INIT_SYMBOL to lookup non-exported symbols (patches 3, 4) - removed #ifdef MODULE around module licenses (Randy, Brendan, Andy) (patch 4) - replaced kunit_test_suite() with kunit_test_suites() rather than supporting both (Brendan) (patch 4) - lookup sysctl_hung_task_timeout_secs as kunit may be built as a module and the symbol may not be available (patch 5) Alan Maguire (6): kunit: move string-stream.h to lib/kunit kunit: hide unexported try-catch interface in try-catch-impl.h kunit: allow kunit tests to be loaded as a module kunit: remove timeout dependence on sysctl_hung_task_timeout_seconds kunit: allow kunit to be loaded as a module kunit: update documentation to describe module-based build Documentation/dev-tools/kunit/faq.rst | 3 +- Documentation/dev-tools/kunit/index.rst | 3 + Documentation/dev-tools/kunit/usage.rst | 16 ++ fs/ext4/Kconfig | 2 +- fs/ext4/Makefile | 5 + fs/ext4/inode-test.c | 4 +- include/kunit/assert.h | 3 +- include/kunit/string-stream.h | 51 ----- include/kunit/test.h | 35 +++- include/kunit/try-catch.h | 10 - kernel/sysctl-test.c | 4 +- lib/Kconfig.debug | 4 +- lib/kunit/Kconfig | 6 +- lib/kunit/Makefile | 14 +- lib/kunit/assert.c | 10 + lib/kunit/example-test.c | 88 --------- lib/kunit/kunit-example-test.c | 90 +++++++++ lib/kunit/kunit-test.c | 334 ++++++++++++++++++++++++++++++++ lib/kunit/string-stream-test.c | 5 +- lib/kunit/string-stream.c | 3 +- lib/kunit/string-stream.h | 51 +++++ lib/kunit/test-test.c | 331 ------------------------------- lib/kunit/test.c | 25 ++- lib/kunit/try-catch-impl.h | 28 +++ lib/kunit/try-catch.c | 37 +--- lib/list-test.c | 4 +- 26 files changed, 628 insertions(+), 538 deletions(-) delete mode 100644 include/kunit/string-stream.h delete mode 100644 lib/kunit/example-test.c create mode 100644 lib/kunit/kunit-example-test.c create mode 100644 lib/kunit/kunit-test.c create mode 100644 lib/kunit/string-stream.h delete mode 100644 lib/kunit/test-test.c create mode 100644 lib/kunit/try-catch-impl.h -- 1.8.3.1

5 years, 10 months

4
21
0 0

next-20191120 kselftest results

by ci_notify＠linaro.org

Summary ------------------------------------------------------------------------ kernel: 5.4.0-rc8 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git branch: master git commit: 1fef9976397fc9b951ee54467eccd65e0c508785 git describe: next-20191120 Test details: https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20191120 Regressions (compared to build next-20191119) ------------------------------------------------------------------------ No regressions Fixes (compared to build next-20191119) ------------------------------------------------------------------------ No fixes In total: ------------------------------------------------------------------------ Ran 0 total tests in the following environments and test suites. pass 0 fail 0 xfail 0 skip 0 Environments -------------- - x15 - arm Test Suites ----------- Failures ------------------------------------------------------------------------ x15: Skips ------------------------------------------------------------------------ No skips -- Linaro LKFT https://lkft.linaro.org

5 years, 10 months

1
0
0 0

[PATCH v6 00/24] mm/gup: track dma-pinned pages: FOLL_PIN

by John Hubbard

Hi, Christoph Hellwig has a preference to do things a little differently, for the devmap cleanup in patch 5 ("mm: devmap: refactor 1-based refcounting for ZONE_DEVICE pages"). That came up in a different review thread, because the patch is out for review in two locations. Here's that review thread: https://lore.kernel.org/r/20191118070826.GB3099@infradead.org ...and I'm hoping that we can defer that request, because otherwise it derails this series, which is starting to otherwise look like it could be ready for 5.5. There is a git repo and branch, for convenience: git@github.com:johnhubbard/linux.git pin_user_pages_tracking_v6 Changes since v5: * Fixed the refcounting for huge pages: in most cases, it was only taking one GUP_PIN_COUNTING_BIAS's worth of refs, when it should have been taking one GUP_PIN_COUNTING_BIAS for each subpage. (Much thanks to Jan Kara for spotting that one!) * Renamed user_page_ref_inc() to try_pin_page(), and added a new try_pin_compound_head(). This definitely improves readability. * Factored out some more duplication in the FOLL_PIN and FOLL_GET cases, in gup.c. * Fixed up some straggling "get_" --> "pin_" references in the comments. * Added reviewed-by tags. Changes since v4: * Renamed put_user_page*() --> unpin_user_page(). * Removed all pin_longterm_pages*() calls. We will use FOLL_LONGTERM at the call sites. (FOLL_PIN, however, remains an internal gup flag). This is very nice: many patches just change three characters now: get_user_pages --> pin_user_pages. I think we've found the right balance of wrapper calls and gup flags, for the call sites. * Updated a lot of documentation and commit logs to match the above two large changes. * Changed gup_benchmark tests and run_vmtests, to adapt to one less use case: there is no pin_longterm_pages() call anymore. * This includes a new devmap cleanup patch from Dan Williams, along with a rebased follow-up: patches 4 and 5, already mentioned above. * Fixed patch 10 ("mm/gup: introduce pin_user_pages*() and FOLL_PIN"), so as to make pin_user_pages*() calls act as placeholders for the corresponding get_user_pages*() calls, until a later patch fully implements the DMA-pinning functionality. Thanks to Jan Kara for noticing that. * Fixed the implementation of pin_user_pages_remote(). * Further tweaked patch 2 ("mm/gup: factor out duplicate code from four routines"), in response to Jan Kara's feedback. * Dropped a few reviewed-by tags due to changes that invalidated them. Changes since v3: * VFIO fix (patch 8): applied further cleanup: removed a pre-existing, unnecessary release and reacquire of mmap_sem. Moved the DAX vma checks from the vfio call site, to gup internals, and added comments (and commit log) to clarify. * Due to the above, made a corresponding fix to the pin_longterm_pages_remote(), which was actually calling the wrong gup internal function. * Changed put_user_page() comments, to refer to pin*() APIs, rather than get_user_pages*() APIs. * Reverted an accidental whitespace-only change in the IB ODP code. * Added a few more reviewed-by tags. Changes since v2: * Added a patch to convert IB/umem from normal gup, to gup_fast(). This is also posted separately, in order to hopefully get some runtime testing. * Changed the page devmap code to be a little clearer, thanks to Jerome for that. * Split out the page devmap changes into a separate patch (and moved Ira's Signed-off-by to that patch). * Fixed my bug in IB: ODP code does not require pin_user_pages() semantics. Therefore, revert the put_user_page() calls to put_page(), and leave the get_user_pages() call as-is. * As part of the revert, I am proposing here a change directly from put_user_pages(), to release_pages(). I'd feel better if someone agrees that this is the best way. It uses the more efficient release_pages(), instead of put_page() in a loop, and keep the change to just a few character on one line, but OTOH it is not a pure revert. * Loosened the FOLL_LONGTERM restrictions in the __get_user_pages_locked() implementation, and used that in order to fix up a VFIO bug. Thanks to Jason for that idea. * Note the use of release_pages() in IB: is that OK? * Added a few more WARN's and clarifying comments nearby. * Many documentation improvements in various comments. * Moved the new pin_user_pages.rst from Documentation/vm/ to Documentation/core-api/ . * Commit descriptions: added clarifying notes to the three patches (drm/via, fs/io_uring, net/xdp) that already had put_user_page() calls in place. * Collected all pending Reviewed-by and Acked-by tags, from v1 and v2 email threads. * Lot of churn from v2 --> v3, so it's possible that new bugs sneaked in. NOT DONE: separate patchset is required: * __get_user_pages_locked(): stop compensating for buggy callers who failed to set FOLL_GET. Instead, assert that FOLL_GET is set (and fail if it's not). ====================================================================== Original cover letter (edited to fix up the patch description numbers) This applies cleanly to linux-next and mmotm, and also to linux.git if linux-next's commit 20cac10710c9 ("mm/gup_benchmark: fix MAP_HUGETLB case") is first applied there. This provides tracking of dma-pinned pages. This is a prerequisite to solving the larger problem of proper interactions between file-backed pages, and [R]DMA activities, as discussed in [1], [2], [3], and in a remarkable number of email threads since about 2017. :) A new internal gup flag, FOLL_PIN is introduced, and thoroughly documented in the last patch's Documentation/vm/pin_user_pages.rst. I believe that this will provide a good starting point for doing the layout lease work that Ira Weiny has been working on. That's because these new wrapper functions provide a clean, constrained, systematically named set of functionality that, again, is required in order to even know if a page is "dma-pinned". In contrast to earlier approaches, the page tracking can be incrementally applied to the kernel call sites that, until now, have been simply calling get_user_pages() ("gup"). In other words, opt-in by changing from this: get_user_pages() (sets FOLL_GET) put_page() to this: pin_user_pages() (sets FOLL_PIN) put_user_page() Because there are interdependencies with FOLL_LONGTERM, a similar conversion as for FOLL_PIN, was applied. The change was from this: get_user_pages(FOLL_LONGTERM) (also sets FOLL_GET) put_page() to this: pin_longterm_pages() (sets FOLL_PIN | FOLL_LONGTERM) put_user_page() ============================================================ Patch summary: * Patches 1-9: refactoring and preparatory cleanup, independent fixes * Patch 10: introduce pin_user_pages(), FOLL_PIN, but no functional changes yet * Patches 11-16: Convert existing put_user_page() callers, to use the new pin*() * Patch 17: Activate tracking of FOLL_PIN pages. * Patches 18-20: convert various callers * Patches: 21-23: gup_benchmark and run_vmtests support * Patch 24: rename put_user_page*() --> unpin_user_page*() ============================================================ Testing: * I've done some overall kernel testing (LTP, and a few other goodies), and some directed testing to exercise some of the changes. And as you can see, gup_benchmark is enhanced to exercise this. Basically, I've been able to runtime test the core get_user_pages() and pin_user_pages() and related routines, but not so much on several of the call sites--but those are generally just a couple of lines changed, each. Not much of the kernel is actually using this, which on one hand reduces risk quite a lot. But on the other hand, testing coverage is low. So I'd love it if, in particular, the Infiniband and PowerPC folks could do a smoke test of this series for me. Also, my runtime testing for the call sites so far is very weak: * io_uring: Some directed tests from liburing exercise this, and they pass. * process_vm_access.c: A small directed test passes. * gup_benchmark: the enhanced version hits the new gup.c code, and passes. * infiniband (still only have crude "IB pingpong" working, on a good day: it's not exercising my conversions at runtime...) * VFIO: compiles (I'm vowing to set up a run time test soon, but it's not ready just yet) * powerpc: it compiles... * drm/via: compiles... * goldfish: compiles... * net/xdp: compiles... * media/v4l2: compiles... ============================================================ Next: * Get the block/bio_vec sites converted to use pin_user_pages(). * Work with Ira and Dave Chinner to weave this together with the layout lease stuff. ============================================================ [1] Some slow progress on get_user_pages() (Apr 2, 2019): https://lwn.net/Articles/784574/ [2] DMA and get_user_pages() (LPC: Dec 12, 2018): https://lwn.net/Articles/774411/ [3] The trouble with get_user_pages() (Apr 30, 2018): https://lwn.net/Articles/753027/ Dan Williams (1): mm: Cleanup __put_devmap_managed_page() vs ->page_free() John Hubbard (23): mm/gup: pass flags arg to __gup_device_* functions mm/gup: factor out duplicate code from four routines mm/gup: move try_get_compound_head() to top, fix minor issues mm: devmap: refactor 1-based refcounting for ZONE_DEVICE pages goldish_pipe: rename local pin_user_pages() routine IB/umem: use get_user_pages_fast() to pin DMA pages media/v4l2-core: set pages dirty upon releasing DMA buffers vfio, mm: fix get_user_pages_remote() and FOLL_LONGTERM mm/gup: introduce pin_user_pages*() and FOLL_PIN goldish_pipe: convert to pin_user_pages() and put_user_page() IB/{core,hw,umem}: set FOLL_PIN via pin_user_pages*(), fix up ODP mm/process_vm_access: set FOLL_PIN via pin_user_pages_remote() drm/via: set FOLL_PIN via pin_user_pages_fast() fs/io_uring: set FOLL_PIN via pin_user_pages() net/xdp: set FOLL_PIN via pin_user_pages() mm/gup: track FOLL_PIN pages media/v4l2-core: pin_user_pages (FOLL_PIN) and put_user_page() conversion vfio, mm: pin_user_pages (FOLL_PIN) and put_user_page() conversion powerpc: book3s64: convert to pin_user_pages() and put_user_page() mm/gup_benchmark: use proper FOLL_WRITE flags instead of hard-coding "1" mm/gup_benchmark: support pin_user_pages() and related calls selftests/vm: run_vmtests: invoke gup_benchmark with basic FOLL_PIN coverage mm, tree-wide: rename put_user_page*() to unpin_user_page*() Documentation/core-api/index.rst | 1 + Documentation/core-api/pin_user_pages.rst | 233 +++++++++ arch/powerpc/mm/book3s64/iommu_api.c | 12 +- drivers/gpu/drm/via/via_dmablit.c | 6 +- drivers/infiniband/core/umem.c | 19 +- drivers/infiniband/core/umem_odp.c | 13 +- drivers/infiniband/hw/hfi1/user_pages.c | 4 +- drivers/infiniband/hw/mthca/mthca_memfree.c | 8 +- drivers/infiniband/hw/qib/qib_user_pages.c | 4 +- drivers/infiniband/hw/qib/qib_user_sdma.c | 8 +- drivers/infiniband/hw/usnic/usnic_uiom.c | 4 +- drivers/infiniband/sw/siw/siw_mem.c | 4 +- drivers/media/v4l2-core/videobuf-dma-sg.c | 8 +- drivers/nvdimm/pmem.c | 6 - drivers/platform/goldfish/goldfish_pipe.c | 35 +- drivers/vfio/vfio_iommu_type1.c | 35 +- fs/io_uring.c | 6 +- include/linux/mm.h | 168 +++++- include/linux/mmzone.h | 2 + include/linux/page_ref.h | 10 + mm/gup.c | 548 +++++++++++++++----- mm/gup_benchmark.c | 74 ++- mm/huge_memory.c | 54 +- mm/hugetlb.c | 39 +- mm/memremap.c | 76 ++- mm/process_vm_access.c | 28 +- mm/vmstat.c | 2 + net/xdp/xdp_umem.c | 4 +- tools/testing/selftests/vm/gup_benchmark.c | 21 +- tools/testing/selftests/vm/run_vmtests | 22 + 30 files changed, 1104 insertions(+), 350 deletions(-) create mode 100644 Documentation/core-api/pin_user_pages.rst -- 2.24.0

5 years, 10 months

3
30
0 0

[PATCH RESEND v17 00/13] open: introduce openat2(2) syscall

by Aleksa Sarai

This patchset is being developed here: <https://github.com/cyphar/linux/tree/openat2/master> This is a re-send of <https://lore.kernel.org/lkml/20191117011713.13032-1-cyphar@cyphar.com/> but rebased on top of 5.4-rc8 (also my mails got duplicated the first time I sent v17 -- hopefully that doesn't happen this time). Patch changelog: v17: * Add a path_is_under() check for LOOKUP_IS_SCOPED in complete_walk(), as a last line of defence to ensure that namei bugs will not break the contract of LOOKUP_BENEATH or LOOKUP_IN_ROOT. * Update based on feedback by Al Viro: * Make nd_jump_link() free the passed path on error, so that callers don't need to worry about it in the error path. * Remove needless m_retry and r_retry variables in handle_dots(). * Always return -ECHILD from follow_dotdot_rcu(). v16: <https://lore.kernel.org/lkml/20191116002802.6663-1-cyphar@cyphar.com/> v15: <https://lore.kernel.org/lkml/20191105090553.6350-1-cyphar@cyphar.com/> v14: <https://lore.kernel.org/lkml/20191010054140.8483-1-cyphar@cyphar.com/> <https://lore.kernel.org/lkml/20191026185700.10708-1-cyphar@cyphar.com> v13: <https://lore.kernel.org/lkml/20190930183316.10190-1-cyphar@cyphar.com/> v12: <https://lore.kernel.org/lkml/20190904201933.10736-1-cyphar@cyphar.com/> v11: <https://lore.kernel.org/lkml/20190820033406.29796-1-cyphar@cyphar.com/> <https://lore.kernel.org/lkml/20190728010207.9781-1-cyphar@cyphar.com/> v10: <https://lore.kernel.org/lkml/20190719164225.27083-1-cyphar@cyphar.com/> v09: <https://lore.kernel.org/lkml/20190706145737.5299-1-cyphar@cyphar.com/> v08: <https://lore.kernel.org/lkml/20190520133305.11925-1-cyphar@cyphar.com/> v07: <https://lore.kernel.org/lkml/20190507164317.13562-1-cyphar@cyphar.com/> v06: <https://lore.kernel.org/lkml/20190506165439.9155-1-cyphar@cyphar.com/> v05: <https://lore.kernel.org/lkml/20190320143717.2523-1-cyphar@cyphar.com/> v04: <https://lore.kernel.org/lkml/20181112142654.341-1-cyphar@cyphar.com/> v03: <https://lore.kernel.org/lkml/20181009070230.12884-1-cyphar@cyphar.com/> v02: <https://lore.kernel.org/lkml/20181009065300.11053-1-cyphar@cyphar.com/> v01: <https://lore.kernel.org/lkml/20180929103453.12025-1-cyphar@cyphar.com/> For a very long time, extending openat(2) with new features has been incredibly frustrating. This stems from the fact that openat(2) is possibly the most famous counter-example to the mantra "don't silently accept garbage from userspace" -- it doesn't check whether unknown flags are present[1]. This means that (generally) the addition of new flags to openat(2) has been fraught with backwards-compatibility issues (O_TMPFILE has to be defined as __O_TMPFILE|O_DIRECTORY|[O_RDWR or O_WRONLY] to ensure old kernels gave errors, since it's insecure to silently ignore the flag[2]). All new security-related flags therefore have a tough road to being added to openat(2). Furthermore, the need for some sort of control over VFS's path resolution (to avoid malicious paths resulting in inadvertent breakouts) has been a very long-standing desire of many userspace applications. This patchset is a revival of Al Viro's old AT_NO_JUMPS[3] patchset (which was a variant of David Drysdale's O_BENEATH patchset[4] which was a spin-off of the Capsicum project[5]) with a few additions and changes made based on the previous discussion within [6] as well as others I felt were useful. In line with the conclusions of the original discussion of AT_NO_JUMPS, the flag has been split up into separate flags. However, instead of being an openat(2) flag it is provided through a new syscall openat2(2) which provides several other improvements to the openat(2) interface (see the patch description for more details). The following new LOOKUP_* flags are added: * LOOKUP_NO_XDEV blocks all mountpoint crossings (upwards, downwards, or through absolute links). Absolute pathnames alone in openat(2) do not trigger this. Magic-link traversal which implies a vfsmount jump is also blocked (though magic-link jumps on the same vfsmount are permitted). * LOOKUP_NO_MAGICLINKS blocks resolution through /proc/$pid/fd-style links. This is done by blocking the usage of nd_jump_link() during resolution in a filesystem. The term "magic-links" is used to match with the only reference to these links in Documentation/, but I'm happy to change the name. It should be noted that this is different to the scope of ~LOOKUP_FOLLOW in that it applies to all path components. However, you can do openat2(NO_FOLLOW|NO_MAGICLINKS) on a magic-link and it will *not* fail (assuming that no parent component was a magic-link), and you will have an fd for the magic-link. In order to correctly detect magic-links, the introduction of a new LOOKUP_MAGICLINK_JUMPED state flag was required. * LOOKUP_BENEATH disallows escapes to outside the starting dirfd's tree, using techniques such as ".." or absolute links. Absolute paths in openat(2) are also disallowed. Conceptually this flag is to ensure you "stay below" a certain point in the filesystem tree -- but this requires some additional to protect against various races that would allow escape using "..". Currently LOOKUP_BENEATH implies LOOKUP_NO_MAGICLINKS, because it can trivially beam you around the filesystem (breaking the protection). In future, there might be similar safety checks done as in LOOKUP_IN_ROOT, but that requires more discussion. In addition, two new flags are added that expand on the above ideas: * LOOKUP_NO_SYMLINKS does what it says on the tin. No symlink resolution is allowed at all, including magic-links. Just as with LOOKUP_NO_MAGICLINKS this can still be used with NOFOLLOW to open an fd for the symlink as long as no parent path had a symlink component. * LOOKUP_IN_ROOT is an extension of LOOKUP_BENEATH that, rather than blocking attempts to move past the root, forces all such movements to be scoped to the starting point. This provides chroot(2)-like protection but without the cost of a chroot(2) for each filesystem operation, as well as being safe against race attacks that chroot(2) is not. If a race is detected (as with LOOKUP_BENEATH) then an error is generated, and similar to LOOKUP_BENEATH it is not permitted to cross magic-links with LOOKUP_IN_ROOT. The primary need for this is from container runtimes, which currently need to do symlink scoping in userspace[7] when opening paths in a potentially malicious container. There is a long list of CVEs that could have bene mitigated by having RESOLVE_THIS_ROOT (such as CVE-2017-1002101, CVE-2017-1002102, CVE-2018-15664, and CVE-2019-5736, just to name a few). In order to make all of the above more usable, I'm working on libpathrs[8] which is a C-friendly library for safe path resolution. It features a userspace-emulated backend if the kernel doesn't support openat2(2). Hopefully we can get userspace to switch to using it, and thus get openat2(2) support for free once it's ready. Future work would include implementing things like RESOLVE_NO_AUTOMOUNT and possibly a RESOLVE_NO_REMOTE (to allow programs to be sure they don't hit DoSes though stale NFS handles). [1]: https://lwn.net/Articles/588444/ [2]: https://lore.kernel.org/lkml/CA+55aFyyxJL1LyXZeBsf2ypriraj5ut1XkNDsunRBqgVj… [3]: https://lore.kernel.org/lkml/20170429220414.GT29622@ZenIV.linux.org.uk [4]: https://lore.kernel.org/lkml/1415094884-18349-1-git-send-email-drysdale@goo… [5]: https://lore.kernel.org/lkml/1404124096-21445-1-git-send-email-drysdale@goo… [6]: https://lwn.net/Articles/723057/ [7]: https://github.com/cyphar/filepath-securejoin [8]: https://github.com/openSUSE/libpathrs The current draft of the openat2(2) man-page is included below. --8<--------------------------------------------------------------------------- OPENAT2(2) Linux Programmer's Manual OPENAT2(2) NAME openat2 - open and possibly create a file (extended) SYNOPSIS #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> int openat2(int dirfd, const char *pathname, struct open_how *how, size_t size); Note: There is no glibc wrapper for this system call; see NOTES. DESCRIPTION The openat2() system call opens the file specified by pathname. If the specified file does not exist, it may optionally (if O_CREAT is specified in how.flags) be created by openat2(). As with openat(2), if pathname is relative, then it is interpreted relative to the direc- tory referred to by the file descriptor dirfd (or the current working directory of the calling process, if dirfd is the special value AT_FDCWD.) If pathname is absolute, then dirfd is ignored (unless how.resolve contains RESOLVE_IN_ROOT, in which case pathname is resolved relative to dirfd.) The openat2() system call is an extension of openat(2) and provides a superset of its functionality. Rather than taking a single flag argument, an extensible structure (how) is passed instead to allow for future extensions. size must be set to sizeof(struct open_how), to facilitate future extensions (see the "Extensibility" section of the NOTES for more detail on how extensions are handled.) The open_how structure The following structure indicates how pathname should be opened, and acts as a superset of the flag and mode arguments to openat(2). struct open_how { __aligned_u64 flags; /* O_* flags. */ __u16 mode; /* Mode for O_{CREAT,TMPFILE}. */ __u16 __padding[3]; /* Must be zeroed. */ __aligned_u64 resolve; /* RESOLVE_* flags. */ }; Any future extensions to openat2() will be implemented as new fields appended to the above structure (or through reuse of pre-existing padding space), with the zero value of the new fields acting as though the extension were not present. The meaning of each field is as follows: flags The file creation and status flags to use for this operation. All of the O_* flags defined for openat(2) are valid openat2() flag values. Unlike openat(2), it is an error to provide openat2() unknown or conflicting flags in flags. mode File mode for the new file, with identical semantics to the mode argument to openat(2). However, unlike openat(2), it is an error to provide openat2() with a mode which contains bits other than 0777. It is an error to provide openat2() a non-zero mode if flags does not con- tain O_CREAT or O_TMPFILE. resolve Change how the components of pathname will be resolved (see path_resolu- tion(7) for background information.) The primary use case for these flags is to allow trusted programs to restrict how untrusted paths (or paths in- side untrusted directories) are resolved. The full list of resolve flags is given below. RESOLVE_NO_XDEV Disallow traversal of mount points during path resolution (including all bind mounts). Users of this flag are encouraged to make its use configurable (un- less it is used for a specific security purpose), as bind mounts are very widely used by end-users. Setting this flag indiscrimnately for all uses of openat2() may result in spurious errors on previously- functional systems. RESOLVE_NO_SYMLINKS Disallow resolution of symbolic links during path resolution. This option implies RESOLVE_NO_MAGICLINKS. If the trailing component is a symbolic link, and flags contains both O_PATH and O_NOFOLLOW, then an O_PATH file descriptor referencing the symbolic link will be returned. Users of this flag are encouraged to make its use configurable (un- less it is used for a specific security purpose), as symbolic links are very widely used by end-users. Setting this flag indiscrimnately for all uses of openat2() may result in spurious errors on previ- ously-functional systems. RESOLVE_NO_MAGICLINKS Disallow all magic link resolution during path resolution. If the trailing component is a magic link, and flags contains both O_PATH and O_NOFOLLOW, then an O_PATH file descriptor referencing the magic link will be returned. Magic-links are symbolic link-like objects that are most notably found in proc(5) (examples include /proc/[pid]/exe and /proc/[pid]/fd/*.) Due to the potential danger of unknowingly open- ing these magic links, it may be preferable for users to disable their resolution entirely (see symboliclink(7) for more details.) RESOLVE_BENEATH Do not permit the path resolution to succeed if any component of the resolution is not a descendant of the directory indicated by dirfd. This results in absolute symbolic links (and absolute values of path- name) to be rejected. Currently, this flag also disables magic link resolution. However, this may change in the future. The caller should explicitly specify RESOLVE_NO_MAGICLINKS to ensure that magic links are not resolved. RESOLVE_IN_ROOT Treat dirfd as the root directory while resolving pathname (as though the user called chroot(2) with dirfd as the argument.) Absolute sym- bolic links and ".." path components will be scoped to dirfd. If pathname is an absolute path, it is also treated relative to dirfd. However, unlike chroot(2) (which changes the filesystem root perma- nently for a process), RESOLVE_IN_ROOT allows a program to effi- ciently restrict path resolution for only certain operations. It also has several hardening features (such detecting escape attempts during .. resolution) which chroot(2) does not. Currently, this flag also disables magic link resolution. However, this may change in the future. The caller should explicitly specify RESOLVE_NO_MAGICLINKS to ensure that magic links are not resolved. It is an error to provide openat2() unknown flags in resolve. RETURN VALUE On success, a new file descriptor is returned. On error, -1 is returned, and errno is set appropriately. ERRORS The set of errors returned by openat2() includes all of the errors returned by openat(2), as well as the following additional errors: EINVAL An unknown flag or invalid value was specified in how. EINVAL mode is non-zero, but flags does not contain O_CREAT or O_TMPFILE. EINVAL size was smaller than any known version of struct open_how. E2BIG An extension was specified in how, which the current kernel does not support (see the "Extensibility" section of the NOTES for more detail on how extensions are han- dled.) EAGAIN resolve contains either RESOLVE_IN_ROOT or RESOLVE_BENEATH, and the kernel could not ensure that a ".." component didn't escape (due to a race condition or poten- tial attack.) Callers may choose to retry the openat2() call. EXDEV resolve contains either RESOLVE_IN_ROOT or RESOLVE_BENEATH, and an escape from the root during path resolution was detected. EXDEV resolve contains RESOLVE_NO_XDEV, and a path component attempted to cross a mount point. ELOOP resolve contains RESOLVE_NO_SYMLINKS, and one of the path components was a symbolic link (or magic link). ELOOP resolve contains RESOLVE_NO_MAGICLINKS, and one of the path components was a magic link. VERSIONS openat2() was added to Linux in kernel 5.FOO. CONFORMING TO This system call is Linux-specific. The semantics of RESOLVE_BENEATH were modelled after FreeBSD's O_BENEATH. NOTES Glibc does not provide a wrapper for this system call; call it using systemcall(2). Extensibility In order to allow for struct open_how to be extended in future kernel revisions, openat2() requires userspace to specify the size of struct open_how structure they are passing. By providing this information, it is possible for openat2() to provide both forwards- and backwards-compatibility — with size acting as an implicit version number (because new ex- tension fields will always be appended, the size will always increase.) This extensibil- ity design is very similar to other system calls such as perf_setattr(2), perf_event_open(2), and clone(3). If we let usize be the size of the structure according to userspace and ksize be the size of the structure which the kernel supports, then there are only three cases to consider: * If ksize equals usize, then there is no version mismatch and how can be used verbatim. * If ksize is larger than usize, then there are some extensions the kernel sup- ports which the userspace program is unaware of. Because all extensions must have their zero values be a no-op, the kernel treats all of the extension fields not set by userspace to have zero values. This provides backwards-compatibil- ity. * If ksize is smaller than usize, then there are some extensions which the userspace program is aware of but the kernel does not support. Because all ex- tensions must have their zero values be a no-op, the kernel can safely ignore the unsupported extension fields if they are all-zero. If any unsupported ex- tension fields are non-zero, then -1 is returned and errno is set to E2BIG. This provides forwards-compatibility. Therefore, most userspace programs will not need to have any special handling of exten- sions. However, if a userspace program wishes to determine what extensions the running kernel supports, they may conduct a binary search on size (to find the largest value which doesn't produce an error of E2BIG.) SEE ALSO openat(2), path_resolution(7), symlink(7) Linux 2019-11-05 OPENAT2(2) --8<--------------------------------------------------------------------------- Aleksa Sarai (13): namei: only return -ECHILD from follow_dotdot_rcu() nsfs: clean-up ns_get_path() signature to return int namei: allow nd_jump_link() to produce errors namei: allow set_root() to produce errors namei: LOOKUP_NO_SYMLINKS: block symlink resolution namei: LOOKUP_NO_MAGICLINKS: block magic-link resolution namei: LOOKUP_NO_XDEV: block mountpoint crossing namei: LOOKUP_BENEATH: O_BENEATH-like scoped resolution namei: LOOKUP_IN_ROOT: chroot-like scoped resolution namei: LOOKUP_{IN_ROOT,BENEATH}: permit limited ".." resolution open: introduce openat2(2) syscall selftests: add openat2(2) selftests Documentation: path-lookup: include new LOOKUP flags CREDITS | 4 +- Documentation/filesystems/path-lookup.rst | 68 ++- arch/alpha/kernel/syscalls/syscall.tbl | 1 + arch/arm/tools/syscall.tbl | 1 + arch/arm64/include/asm/unistd.h | 2 +- arch/arm64/include/asm/unistd32.h | 2 + arch/ia64/kernel/syscalls/syscall.tbl | 1 + arch/m68k/kernel/syscalls/syscall.tbl | 1 + arch/microblaze/kernel/syscalls/syscall.tbl | 1 + arch/mips/kernel/syscalls/syscall_n32.tbl | 1 + arch/mips/kernel/syscalls/syscall_n64.tbl | 1 + arch/mips/kernel/syscalls/syscall_o32.tbl | 1 + arch/parisc/kernel/syscalls/syscall.tbl | 1 + arch/powerpc/kernel/syscalls/syscall.tbl | 1 + arch/s390/kernel/syscalls/syscall.tbl | 1 + arch/sh/kernel/syscalls/syscall.tbl | 1 + arch/sparc/kernel/syscalls/syscall.tbl | 1 + arch/x86/entry/syscalls/syscall_32.tbl | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 1 + arch/xtensa/kernel/syscalls/syscall.tbl | 1 + fs/namei.c | 185 +++++-- fs/nsfs.c | 29 +- fs/open.c | 149 +++-- fs/proc/base.c | 3 +- fs/proc/namespaces.c | 20 +- include/linux/fcntl.h | 12 +- include/linux/namei.h | 12 +- include/linux/proc_ns.h | 4 +- include/linux/syscalls.h | 3 + include/uapi/asm-generic/unistd.h | 5 +- include/uapi/linux/fcntl.h | 40 ++ kernel/bpf/offload.c | 12 +- kernel/events/core.c | 2 +- security/apparmor/apparmorfs.c | 6 +- tools/testing/selftests/Makefile | 1 + tools/testing/selftests/openat2/.gitignore | 1 + tools/testing/selftests/openat2/Makefile | 8 + tools/testing/selftests/openat2/helpers.c | 109 ++++ tools/testing/selftests/openat2/helpers.h | 107 ++++ .../testing/selftests/openat2/openat2_test.c | 316 +++++++++++ .../selftests/openat2/rename_attack_test.c | 160 ++++++ .../testing/selftests/openat2/resolve_test.c | 523 ++++++++++++++++++ 42 files changed, 1686 insertions(+), 113 deletions(-) create mode 100644 tools/testing/selftests/openat2/.gitignore create mode 100644 tools/testing/selftests/openat2/Makefile create mode 100644 tools/testing/selftests/openat2/helpers.c create mode 100644 tools/testing/selftests/openat2/helpers.h create mode 100644 tools/testing/selftests/openat2/openat2_test.c create mode 100644 tools/testing/selftests/openat2/rename_attack_test.c create mode 100644 tools/testing/selftests/openat2/resolve_test.c base-commit: af42d3466bdc8f39806b26f593604fdc54140bcb -- 2.24.0

5 years, 10 months

1
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[PATCH linux-kselftest/test v4] Documentation: kunit: add documentation for kunit_tool

by Brendan Higgins

Add documentation for the Python script used to build, run, and collect results from the kernel known as kunit_tool. kunit_tool (tools/testing/kunit/kunit.py) was already added in previous commits. Signed-off-by: Brendan Higgins <brendanhiggins(a)google.com> Reviewed-by: David Gow <davidgow(a)google.com> Cc: Randy Dunlap <rdunlap(a)infradead.org> --- Documentation/dev-tools/kunit/index.rst | 1 + Documentation/dev-tools/kunit/kunit-tool.rst | 57 ++++++++++++++++++++ Documentation/dev-tools/kunit/start.rst | 5 +- 3 files changed, 62 insertions(+), 1 deletion(-) create mode 100644 Documentation/dev-tools/kunit/kunit-tool.rst diff --git a/Documentation/dev-tools/kunit/index.rst b/Documentation/dev-tools/kunit/index.rst index 26ffb46bdf99d..c60d760a0eed1 100644 --- a/Documentation/dev-tools/kunit/index.rst +++ b/Documentation/dev-tools/kunit/index.rst @@ -9,6 +9,7 @@ KUnit - Unit Testing for the Linux Kernel start usage + kunit-tool api/index faq diff --git a/Documentation/dev-tools/kunit/kunit-tool.rst b/Documentation/dev-tools/kunit/kunit-tool.rst new file mode 100644 index 0000000000000..50d46394e97e3 --- /dev/null +++ b/Documentation/dev-tools/kunit/kunit-tool.rst @@ -0,0 +1,57 @@ +.. SPDX-License-Identifier: GPL-2.0 + +================= +kunit_tool How-To +================= + +What is kunit_tool? +=================== + +kunit_tool is a script (``tools/testing/kunit/kunit.py``) that aids in building +the Linux kernel as UML (`User Mode Linux +<http://user-mode-linux.sourceforge.net/>`_), running KUnit tests, parsing +the test results and displaying them in a user friendly manner. + +What is a kunitconfig? +====================== + +It's just a defconfig that kunit_tool looks for in the base directory. +kunit_tool uses it to generate a .config as you might expect. In addition, it +verifies that the generated .config contains the CONFIG options in the +kunitconfig; the reason it does this is so that it is easy to be sure that a +CONFIG that enables a test actually ends up in the .config. + +How do I use kunit_tool? +======================== + +If a kunitconfig is present at the root directory, all you have to do is: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run + +However, you most likely want to use it with the following options: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all` + +- ``--timeout`` sets a maximum amount of time to allow tests to run. +- ``--jobs`` sets the number of threads to use to build the kernel. + +If you just want to use the defconfig that ships with the kernel, you can +append the ``--defconfig`` flag as well: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all` --defconfig + +.. note:: + This command is particularly helpful for getting started because it + just works. No kunitconfig needs to be present. + +For a list of all the flags supported by kunit_tool, you can run: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --help diff --git a/Documentation/dev-tools/kunit/start.rst b/Documentation/dev-tools/kunit/start.rst index aeeddfafeea20..f4d9a4fa914f8 100644 --- a/Documentation/dev-tools/kunit/start.rst +++ b/Documentation/dev-tools/kunit/start.rst @@ -19,7 +19,10 @@ The wrapper can be run with: .. code-block:: bash - ./tools/testing/kunit/kunit.py run + ./tools/testing/kunit/kunit.py run --defconfig + +For more information on this wrapper (also called kunit_tool) checkout the +:doc:`kunit-tool` page. Creating a kunitconfig ====================== -- 2.24.0.432.g9d3f5f5b63-goog

5 years, 10 months

2
1
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next-20191119 kselftest results

by ci_notify＠linaro.org

Summary ------------------------------------------------------------------------ kernel: 5.4.0-rc8 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git branch: master git commit: 5d1131b4d61e52e5702e0fa4bcbec81ac7d6ef52 git describe: next-20191119 Test details: https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20191119 Regressions (compared to build next-20191118) ------------------------------------------------------------------------ No regressions Fixes (compared to build next-20191118) ------------------------------------------------------------------------ qemu_arm: kselftest: * net_so_txtime.sh In total: ------------------------------------------------------------------------ Ran 1948 total tests in the following environments and test suites. pass 992 fail 795 xfail 0 skip 161 Environments -------------- - dragonboard-410c - arm64 - hi6220-hikey - arm64 - i386 - juno-r2 - arm64 - qemu_arm - qemu_arm64 - qemu_i386 - qemu_x86_64 - x15 - arm - x86_64 Test Suites ----------- * kselftest * kselftest-vsyscall-mode-native * kselftest-vsyscall-mode-none Failures ------------------------------------------------------------------------ hi6220-hikey: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lpm_map * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/clone3_clone3 * kselftest/clone3_clone3_clear_sighand * kselftest/clone3_clone3_set_tid * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_mmio_warning_test * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest/kvm_xss_msr_test * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_rule_tests.sh * kselftest/net_fib_tests.sh * kselftest/netfilter_conntrack_icmp_related.sh * kselftest/netfilter_nft_nat.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_run_netsocktests * kselftest/net_tcp_fastopen_backup_key.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_traceroute.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/pidfd_pidfd_fdinfo_test * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pidfd_pidfd_test * kselftest/pidfd_pidfd_wait * kselftest/pstore_pstore_tests * kselftest/rseq_basic_percpu_ops_test * kselftest/rtc_rtctest * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh i386: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_hashmap * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/clone3_clone3_clear_sighand * kselftest/firmware_fw_run_tests.sh * kselftest/intel_pstate_run.sh * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_mmio_warning_test * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest/kvm_xss_msr_test * kselftest/lib_bitmap.sh * kselftest/mqueue_mq_perf_tests * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_tests.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_run_netsocktests * kselftest/net_so_txtime.sh * kselftest/net_tcp_fastopen_backup_key.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_traceroute.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgso_bench.sh * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pidfd_pidfd_test * kselftest/proc_proc-self-syscall * kselftest/pstore_pstore_tests * kselftest/rseq_basic_percpu_ops_test * kselftest/rseq_run_param_test.sh * kselftest/size_get_size * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh * kselftest/x86_iopl_32 * kselftest/x86_ldt_gdt_32 * kselftest/x86_sigreturn_32 x86: * kselftest-vsyscall-mode-none/bpf_get_cgroup_id_user * kselftest-vsyscall-mode-native/bpf_get_cgroup_id_user * kselftest/bpf_get_cgroup_id_user * kselftest-vsyscall-mode-native/bpf_test_bpftool_build.sh * kselftest/bpf_test_bpftool_build.sh * kselftest-vsyscall-mode-none/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest-vsyscall-mode-native/bpf_test_dev_cgroup * kselftest-vsyscall-mode-none/bpf_test_dev_cgroup * kselftest-vsyscall-mode-native/bpf_test_flow_dissector.sh * kselftest-vsyscall-mode-none/bpf_test_flow_dissector.sh * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_lwt_ip_encap.sh * kselftest-vsyscall-mode-none/bpf_test_lwt_ip_encap.sh * kselftest-vsyscall-mode-native/bpf_test_lwt_ip_encap.sh * kselftest-vsyscall-mode-native/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest-vsyscall-mode-none/bpf_test_lwt_seg6local.sh * kselftest-vsyscall-mode-none/bpf_test_maps * kselftest-vsyscall-mode-native/bpf_test_maps * kselftest/bpf_test_maps * kselftest-vsyscall-mode-native/bpf_test_netcnt * kselftest/bpf_test_netcnt * kselftest-vsyscall-mode-none/bpf_test_netcnt * kselftest-vsyscall-mode-none/bpf_test_progs * kselftest-vsyscall-mode-native/bpf_test_progs * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest-vsyscall-mode-native/bpf_test_progs-no_alu32 * kselftest-vsyscall-mode-native/bpf_test_select_reuseport * kselftest/bpf_test_select_reuseport * kselftest-vsyscall-mode-none/bpf_test_select_reuseport * kselftest-vsyscall-mode-native/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_skb_cgroup_id.sh * kselftest-vsyscall-mode-none/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-native/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-none/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-native/bpf_test_socket_cookie * kselftest-vsyscall-mode-none/bpf_test_socket_cookie * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest-vsyscall-mode-native/bpf_test_sock_fields * kselftest-vsyscall-mode-none/bpf_test_sock_fields * kselftest-vsyscall-mode-none/bpf_test_sockmap * kselftest-vsyscall-mode-native/bpf_test_sockmap * kselftest/bpf_test_sockmap * kselftest-vsyscall-mode-none/bpf_test_sysctl * kselftest-vsyscall-mode-native/bpf_test_sysctl * kselftest/bpf_test_sysctl * kselftest/bpf_test_tc_edt.sh * kselftest-vsyscall-mode-native/bpf_test_tc_edt.sh * kselftest-vsyscall-mode-none/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest-vsyscall-mode-none/bpf_test_tcpbpf_user * kselftest-vsyscall-mode-native/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest-vsyscall-mode-none/bpf_test_tcp_check_syncookie.sh * kselftest-vsyscall-mode-native/bpf_test_tcp_check_syncookie.sh * kselftest-vsyscall-mode-none/bpf_test_tcpnotify_user * kselftest-vsyscall-mode-native/bpf_test_tcpnotify_user * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest-vsyscall-mode-native/bpf_test_tc_tunnel.sh * kselftest-vsyscall-mode-none/bpf_test_tc_tunnel.sh * kselftest-vsyscall-mode-native/bpf_test_tunnel.sh * kselftest-vsyscall-mode-none/bpf_test_tunnel.sh * kselftest/bpf_test_xdping.sh * kselftest-vsyscall-mode-native/bpf_test_xdping.sh * kselftest-vsyscall-mode-none/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest-vsyscall-mode-native/bpf_test_xdp_meta.sh * kselftest-vsyscall-mode-none/bpf_test_xdp_meta.sh * kselftest-vsyscall-mode-native/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest-vsyscall-mode-none/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest-vsyscall-mode-none/bpf_test_xdp_vlan_mode_generic.sh * kselftest-vsyscall-mode-native/bpf_test_xdp_vlan_mode_generic.sh * kselftest-vsyscall-mode-native/bpf_test_xdp_vlan_mode_native.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest-vsyscall-mode-none/bpf_test_xdp_vlan_mode_native.sh * kselftest-vsyscall-mode-none/firmware_fw_run_tests.sh * kselftest-vsyscall-mode-native/firmware_fw_run_tests.sh * kselftest/firmware_fw_run_tests.sh * kselftest-vsyscall-mode-none/intel_pstate_run.sh * kselftest-vsyscall-mode-native/intel_pstate_run.sh * kselftest/intel_pstate_run.sh * kselftest/kvm_clear_dirty_log_test * kselftest-vsyscall-mode-native/kvm_clear_dirty_log_test * kselftest-vsyscall-mode-none/kvm_clear_dirty_log_test * kselftest-vsyscall-mode-native/kvm_cr4_cpuid_sync_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest-vsyscall-mode-none/kvm_cr4_cpuid_sync_test * kselftest-vsyscall-mode-native/kvm_dirty_log_test * kselftest-vsyscall-mode-none/kvm_dirty_log_test * kselftest/kvm_dirty_log_test * kselftest-vsyscall-mode-none/kvm_evmcs_test * kselftest-vsyscall-mode-native/kvm_evmcs_test * kselftest-vsyscall-mode-native/kvm_hyperv_cpuid * kselftest/kvm_hyperv_cpuid * kselftest-vsyscall-mode-none/kvm_kvm_create_max_vcpus * kselftest/kvm_kvm_create_max_vcpus * kselftest-vsyscall-mode-native/kvm_kvm_create_max_vcpus * kselftest-vsyscall-mode-native/kvm_platform_info_test * kselftest-vsyscall-mode-none/kvm_platform_info_test * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest-vsyscall-mode-none/kvm_set_sregs_test * kselftest-vsyscall-mode-native/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest-vsyscall-mode-none/kvm_smm_test * kselftest-vsyscall-mode-native/kvm_smm_test * kselftest-vsyscall-mode-none/kvm_state_test * kselftest/kvm_state_test * kselftest-vsyscall-mode-native/kvm_state_test * kselftest-vsyscall-mode-none/kvm_sync_regs_test * kselftest-vsyscall-mode-native/kvm_sync_regs_test * kselftest/kvm_sync_regs_test * kselftest-vsyscall-mode-none/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_close_while_nested_test * kselftest-vsyscall-mode-native/kvm_vmx_close_while_nested_test * kselftest-vsyscall-mode-none/kvm_vmx_dirty_log_test * kselftest-vsyscall-mode-native/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_dirty_log_test * kselftest-vsyscall-mode-none/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_set_nested_state_test * kselftest-vsyscall-mode-native/kvm_vmx_set_nested_state_test * kselftest-vsyscall-mode-native/kvm_vmx_tsc_adjust_test * kselftest-vsyscall-mode-none/kvm_vmx_tsc_adjust_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest-vsyscall-mode-none/kvm_xss_msr_test * kselftest-vsyscall-mode-native/kvm_xss_msr_test * kselftest/kvm_xss_msr_test * kselftest-vsyscall-mode-none/mqueue_mq_perf_tests * kselftest-vsyscall-mode-native/mqueue_mq_perf_tests * kselftest/mqueue_mq_perf_tests * kselftest-vsyscall-mode-native/net_fib-onlink-tests.sh * kselftest/net_fib-onlink-tests.sh * kselftest-vsyscall-mode-none/net_fib-onlink-tests.sh * kselftest-vsyscall-mode-none/net_fib_tests.sh * kselftest-vsyscall-mode-native/net_fib_tests.sh * kselftest/net_fib_tests.sh * kselftest/net_ip_defrag.sh * kselftest-vsyscall-mode-native/net_ip_defrag.sh * kselftest-vsyscall-mode-none/net_ip_defrag.sh * kselftest-vsyscall-mode-none/net_l2tp.sh * kselftest-vsyscall-mode-native/net_l2tp.sh * kselftest/net_l2tp.sh * kselftest-vsyscall-mode-none/net_pmtu.sh * kselftest/net_pmtu.sh * kselftest-vsyscall-mode-native/net_pmtu.sh * kselftest-vsyscall-mode-native/net_psock_snd.sh * kselftest/net_psock_snd.sh * kselftest-vsyscall-mode-none/net_psock_snd.sh * kselftest-vsyscall-mode-none/net_run_netsocktests * kselftest/net_run_netsocktests * kselftest-vsyscall-mode-native/net_run_netsocktests * kselftest/net_so_txtime.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest-vsyscall-mode-native/net_test_vxlan_under_vrf.sh * kselftest-vsyscall-mode-none/net_test_vxlan_under_vrf.sh * kselftest-vsyscall-mode-native/net_traceroute.sh * kselftest/net_traceroute.sh * kselftest-vsyscall-mode-none/net_traceroute.sh * kselftest-vsyscall-mode-native/net_udpgro_bench.sh * kselftest-vsyscall-mode-none/net_udpgro_bench.sh * kselftest/net_udpgro_bench.sh * kselftest-vsyscall-mode-none/net_udpgro.sh * kselftest-vsyscall-mode-native/net_udpgro.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest-vsyscall-mode-none/net_udpgso_bench.sh * kselftest-vsyscall-mode-native/net_udpgso_bench.sh * kselftest/net_xfrm_policy.sh * kselftest-vsyscall-mode-native/net_xfrm_policy.sh * kselftest-vsyscall-mode-none/net_xfrm_policy.sh * kselftest-vsyscall-mode-none/pidfd_pidfd_open_test * kselftest-vsyscall-mode-native/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest-vsyscall-mode-native/pidfd_pidfd_poll_test * kselftest-vsyscall-mode-none/pidfd_pidfd_poll_test * kselftest-vsyscall-mode-none/pstore_pstore_tests * kselftest-vsyscall-mode-native/pstore_pstore_tests * kselftest/pstore_pstore_tests * kselftest/rseq_run_param_test.sh * kselftest-vsyscall-mode-native/rseq_run_param_test.sh * kselftest-vsyscall-mode-none/rseq_run_param_test.sh * kselftest-vsyscall-mode-native/rtc_rtctest * kselftest/rtc_rtctest * kselftest-vsyscall-mode-none/rtc_rtctest * kselftest/seccomp_seccomp_benchmark * kselftest-vsyscall-mode-native/seccomp_seccomp_benchmark * kselftest-vsyscall-mode-none/seccomp_seccomp_benchmark * kselftest/timers_set-timer-lat * kselftest-vsyscall-mode-native/timers_set-timer-lat * kselftest-vsyscall-mode-none/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest-vsyscall-mode-native/timestamping_txtimestamp.sh * kselftest-vsyscall-mode-none/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest-vsyscall-mode-none/tpm2_test_smoke.sh * kselftest-vsyscall-mode-native/tpm2_test_smoke.sh * kselftest-vsyscall-mode-none/tpm2_test_space.sh * kselftest/tpm2_test_space.sh * kselftest-vsyscall-mode-native/tpm2_test_space.sh * kselftest-vsyscall-mode-none/vm_run_vmtests * kselftest/vm_run_vmtests * kselftest-vsyscall-mode-native/vm_run_vmtests * kselftest-vsyscall-mode-native/x86_fsgsbase_64 * kselftest-vsyscall-mode-native/x86_iopl_64 * kselftest-vsyscall-mode-none/x86_iopl_64 * kselftest/x86_iopl_64 qemu_x86_64: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/cpufreq_main.sh * kselftest/firmware_fw_run_tests.sh * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_xss_msr_test * kselftest/mqueue_mq_perf_tests * kselftest/net_fib_tests.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_run_netsocktests * kselftest/net_tcp_fastopen_backup_key.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_traceroute.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/net_xfrm_policy.sh * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pidfd_pidfd_test * kselftest/pstore_pstore_tests * kselftest/rseq_basic_percpu_ops_test * kselftest/rseq_run_param_test.sh * kselftest/rtc_rtctest * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh * kselftest/x86_fsgsbase_64 * kselftest/x86_iopl_64 x15: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_hashmap * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/clone3_clone3_clear_sighand * kselftest/epoll_epoll_wakeup_test * kselftest/firmware_fw_run_tests.sh * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_mmio_warning_test * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest/kvm_xss_msr_test * kselftest/lib_bitmap.sh * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_rule_tests.sh * kselftest/net_fib_tests.sh * kselftest/netfilter_conntrack_icmp_related.sh * kselftest/netfilter_nft_nat.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_reuseport_bpf_numa * kselftest/net_run_netsocktests * kselftest/net_tcp_fastopen_backup_key.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pidfd_pidfd_test * kselftest/proc_proc-self-syscall * kselftest/pstore_pstore_tests * kselftest/rseq_basic_percpu_ops_test * kselftest/rtc_rtctest * kselftest/seccomp_seccomp_benchmark * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh qemu_arm: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_hashmap * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/clone3_clone3_clear_sighand * kselftest/cpufreq_main.sh * kselftest/firmware_fw_run_tests.sh * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_mmio_warning_test * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest/kvm_xss_msr_test * kselftest/lib_bitmap.sh * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_rule_tests.sh * kselftest/net_fib_tests.sh * kselftest/netfilter_conntrack_icmp_related.sh * kselftest/netfilter_nft_nat.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_reuseport_bpf_numa * kselftest/net_run_netsocktests * kselftest/net_tcp_fastopen_backup_key.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pidfd_pidfd_test * kselftest/proc_proc-self-syscall * kselftest/pstore_pstore_tests * kselftest/rseq_basic_percpu_ops_test * kselftest/rtc_rtctest * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh qemu_arm64: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_duplicated_fpsimd * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lpm_map * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/clone3_clone3 * kselftest/clone3_clone3_clear_sighand * kselftest/clone3_clone3_set_tid * kselftest/cpufreq_main.sh qemu_i386: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_hashmap * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/clone3_clone3_clear_sighand * kselftest/cpufreq_main.sh * kselftest/firmware_fw_run_tests.sh * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_mmio_warning_test * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest/kvm_xss_msr_test * kselftest/lib_bitmap.sh * kselftest/mqueue_mq_perf_tests * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_tests.sh * kselftest/netfilter_conntrack_icmp_related.sh * kselftest/netfilter_nft_nat.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_run_netsocktests * kselftest/net_so_txtime.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_traceroute.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/net_xfrm_policy.sh * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/proc_proc-self-syscall * kselftest/pstore_pstore_tests * kselftest/rseq_run_param_test.sh * kselftest/rtc_rtctest * kselftest/size_get_size * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh * kselftest/vm_run_vmtests * kselftest/x86_iopl_32 * kselftest/x86_ldt_gdt_32 * kselftest/x86_sigreturn_32 dragonboard-410c: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_duplicated_fpsimd * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lpm_map * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/clone3_clone3 * kselftest/clone3_clone3_clear_sighand * kselftest/clone3_clone3_set_tid Skips ------------------------------------------------------------------------ No skips -- Linaro LKFT https://lkft.linaro.org

5 years, 10 months

1
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[PATCH linux-kselftest/test v2] Documentation: kunit: fix typos and gramatical errors

by Brendan Higgins

Fix typos and gramatical errors in the Getting Started and Usage guide for KUnit. Reported-by: Randy Dunlap <rdunlap(a)infradead.org> Link: https://patchwork.kernel.org/patch/11156481/ Reported-by: Rinat Ibragimov <ibragimovrinat(a)mail.ru> Link: https://github.com/google/kunit-docs/issues/1 Signed-off-by: Brendan Higgins <brendanhiggins(a)google.com> Reviewed-by: David Gow <davidgow(a)google.com> --- Documentation/dev-tools/kunit/start.rst | 8 ++++---- Documentation/dev-tools/kunit/usage.rst | 24 ++++++++++++------------ 2 files changed, 16 insertions(+), 16 deletions(-) diff --git a/Documentation/dev-tools/kunit/start.rst b/Documentation/dev-tools/kunit/start.rst index f4d9a4fa914f8..9d6db892c41c0 100644 --- a/Documentation/dev-tools/kunit/start.rst +++ b/Documentation/dev-tools/kunit/start.rst @@ -26,7 +26,7 @@ For more information on this wrapper (also called kunit_tool) checkout the Creating a kunitconfig ====================== -The Python script is a thin wrapper around Kbuild as such, it needs to be +The Python script is a thin wrapper around Kbuild. As such, it needs to be configured with a ``kunitconfig`` file. This file essentially contains the regular Kernel config, with the specific test targets as well. @@ -62,8 +62,8 @@ If everything worked correctly, you should see the following: followed by a list of tests that are run. All of them should be passing. .. note:: - Because it is building a lot of sources for the first time, the ``Building - kunit kernel`` step may take a while. + Because it is building a lot of sources for the first time, the + ``Building KUnit kernel`` step may take a while. Writing your first test ======================= @@ -162,7 +162,7 @@ Now you can run the test: .. code-block:: bash - ./tools/testing/kunit/kunit.py + ./tools/testing/kunit/kunit.py run You should see the following failure: diff --git a/Documentation/dev-tools/kunit/usage.rst b/Documentation/dev-tools/kunit/usage.rst index c6e69634e274b..b9a065ab681ee 100644 --- a/Documentation/dev-tools/kunit/usage.rst +++ b/Documentation/dev-tools/kunit/usage.rst @@ -16,7 +16,7 @@ Organization of this document ============================= This document is organized into two main sections: Testing and Isolating -Behavior. The first covers what a unit test is and how to use KUnit to write +Behavior. The first covers what unit tests are and how to use KUnit to write them. The second covers how to use KUnit to isolate code and make it possible to unit test code that was otherwise un-unit-testable. @@ -174,13 +174,13 @@ Test Suites ~~~~~~~~~~~ Now obviously one unit test isn't very helpful; the power comes from having -many test cases covering all of your behaviors. Consequently it is common to -have many *similar* tests; in order to reduce duplication in these closely -related tests most unit testing frameworks provide the concept of a *test -suite*, in KUnit we call it a *test suite*; all it is is just a collection of -test cases for a unit of code with a set up function that gets invoked before -every test cases and then a tear down function that gets invoked after every -test case completes. +many test cases covering all of a unit's behaviors. Consequently it is common +to have many *similar* tests; in order to reduce duplication in these closely +related tests most unit testing frameworks - including KUnit - provide the +concept of a *test suite*. A *test suite* is just a collection of test cases +for a unit of code with a set up function that gets invoked before every test +case and then a tear down function that gets invoked after every test case +completes. Example: @@ -211,7 +211,7 @@ KUnit test framework. .. note:: A test case will only be run if it is associated with a test suite. -For a more information on these types of things see the :doc:`api/test`. +For more information on these types of things see the :doc:`api/test`. Isolating Behavior ================== @@ -338,7 +338,7 @@ We can easily test this code by *faking out* the underlying EEPROM: return count; } - ssize_t fake_eeprom_write(struct eeprom *this, size_t offset, const char *buffer, size_t count) + ssize_t fake_eeprom_write(struct eeprom *parent, size_t offset, const char *buffer, size_t count) { struct fake_eeprom *this = container_of(parent, struct fake_eeprom, parent); @@ -454,7 +454,7 @@ KUnit on non-UML architectures By default KUnit uses UML as a way to provide dependencies for code under test. Under most circumstances KUnit's usage of UML should be treated as an implementation detail of how KUnit works under the hood. Nevertheless, there -are instances where being able to run architecture specific code, or test +are instances where being able to run architecture specific code or test against real hardware is desirable. For these reasons KUnit supports running on other architectures. @@ -557,7 +557,7 @@ run your tests on your hardware setup just by compiling for your architecture. .. important:: Always prefer tests that run on UML to tests that only run under a particular architecture, and always prefer tests that run under QEMU or another easy - (and monitarily free) to obtain software environment to a specific piece of + (and monetarily free) to obtain software environment to a specific piece of hardware. Nevertheless, there are still valid reasons to write an architecture or hardware -- 2.24.0.432.g9d3f5f5b63-goog

5 years, 10 months

2
1
0 0

[PATCH linux-kselftest/test v1] Documentation: kunit: fix typos and gramatical errors

by Brendan Higgins

Fix typos and gramatical errors in the Getting Started and Usage guide for KUnit. Reported-by: Randy Dunlap <rdunlap(a)infradead.org> Link: https://patchwork.kernel.org/patch/11156481/ Signed-off-by: Brendan Higgins <brendanhiggins(a)google.com> --- Documentation/dev-tools/kunit/start.rst | 6 +++--- Documentation/dev-tools/kunit/usage.rst | 22 +++++++++++----------- 2 files changed, 14 insertions(+), 14 deletions(-) diff --git a/Documentation/dev-tools/kunit/start.rst b/Documentation/dev-tools/kunit/start.rst index f4d9a4fa914f8..db146c7d77490 100644 --- a/Documentation/dev-tools/kunit/start.rst +++ b/Documentation/dev-tools/kunit/start.rst @@ -26,7 +26,7 @@ For more information on this wrapper (also called kunit_tool) checkout the Creating a kunitconfig ====================== -The Python script is a thin wrapper around Kbuild as such, it needs to be +The Python script is a thin wrapper around Kbuild. As such, it needs to be configured with a ``kunitconfig`` file. This file essentially contains the regular Kernel config, with the specific test targets as well. @@ -62,8 +62,8 @@ If everything worked correctly, you should see the following: followed by a list of tests that are run. All of them should be passing. .. note:: - Because it is building a lot of sources for the first time, the ``Building - kunit kernel`` step may take a while. + Because it is building a lot of sources for the first time, the + ``Building KUnit kernel`` step may take a while. Writing your first test ======================= diff --git a/Documentation/dev-tools/kunit/usage.rst b/Documentation/dev-tools/kunit/usage.rst index c6e69634e274b..ae42a0d128c27 100644 --- a/Documentation/dev-tools/kunit/usage.rst +++ b/Documentation/dev-tools/kunit/usage.rst @@ -16,7 +16,7 @@ Organization of this document ============================= This document is organized into two main sections: Testing and Isolating -Behavior. The first covers what a unit test is and how to use KUnit to write +Behavior. The first covers what unit tests are and how to use KUnit to write them. The second covers how to use KUnit to isolate code and make it possible to unit test code that was otherwise un-unit-testable. @@ -174,13 +174,13 @@ Test Suites ~~~~~~~~~~~ Now obviously one unit test isn't very helpful; the power comes from having -many test cases covering all of your behaviors. Consequently it is common to -have many *similar* tests; in order to reduce duplication in these closely -related tests most unit testing frameworks provide the concept of a *test -suite*, in KUnit we call it a *test suite*; all it is is just a collection of -test cases for a unit of code with a set up function that gets invoked before -every test cases and then a tear down function that gets invoked after every -test case completes. +many test cases covering all of a unit's behaviors. Consequently it is common +to have many *similar* tests; in order to reduce duplication in these closely +related tests most unit testing frameworks - including KUnit - provide the +concept of a *test suite*. A *test suite* is just a collection of test cases +for a unit of code with a set up function that gets invoked before every test +case and then a tear down function that gets invoked after every test case +completes. Example: @@ -211,7 +211,7 @@ KUnit test framework. .. note:: A test case will only be run if it is associated with a test suite. -For a more information on these types of things see the :doc:`api/test`. +For more information on these types of things see the :doc:`api/test`. Isolating Behavior ================== @@ -454,7 +454,7 @@ KUnit on non-UML architectures By default KUnit uses UML as a way to provide dependencies for code under test. Under most circumstances KUnit's usage of UML should be treated as an implementation detail of how KUnit works under the hood. Nevertheless, there -are instances where being able to run architecture specific code, or test +are instances where being able to run architecture specific code or test against real hardware is desirable. For these reasons KUnit supports running on other architectures. @@ -557,7 +557,7 @@ run your tests on your hardware setup just by compiling for your architecture. .. important:: Always prefer tests that run on UML to tests that only run under a particular architecture, and always prefer tests that run under QEMU or another easy - (and monitarily free) to obtain software environment to a specific piece of + (and monetarily free) to obtain software environment to a specific piece of hardware. Nevertheless, there are still valid reasons to write an architecture or hardware -- 2.24.0.432.g9d3f5f5b63-goog

5 years, 10 months

2
1
0 0

[PATCH v5 00/24] mm/gup: track dma-pinned pages: FOLL_PIN

by John Hubbard

Hi, Please note that two of these patches are also out for review separately, and may go in earlier than this series. This series requires those, so to ease review and testing, they are also included here: patches 4 and 5, the devmap cleanups. There is a git repo and branch, for convenience: git@github.com:johnhubbard/linux.git pin_user_pages_tracking_v5 Despite the large number of changes, it does feel like the review comments are converging, btw. Changes since v4: * Renamed put_user_page*() --> unpin_user_page(). * Removed all pin_longterm_pages*() calls. We will use FOLL_LONGTERM at the call sites. (FOLL_PIN, however, remains an internal gup flag). This is very nice: many patches just change three characters now: get_user_pages --> pin_user_pages. I think we've found the right balance of wrapper calls and gup flags, for the call sites. * Updated a lot of documentation and commit logs to match the above two large changes. * Changed gup_benchmark tests and run_vmtests, to adapt to one less use case: there is no pin_longterm_pages() call anymore. * This includes a new devmap cleanup patch from Dan Williams, along with a rebased follow-up: patches 4 and 5, already mentioned above. * Fixed patch 10 ("mm/gup: introduce pin_user_pages*() and FOLL_PIN"), so as to make pin_user_pages*() calls act as placeholders for the corresponding get_user_pages*() calls, until a later patch fully implements the DMA-pinning functionality. Thanks to Jan Kara for noticing that. * Fixed the implementation of pin_user_pages_remote(). * Further tweaked patch 2 ("mm/gup: factor out duplicate code from four routines"), in response to Jan Kara's feedback. * Dropped a few reviewed-by tags due to changes that invalidated them. Changes since v3: * VFIO fix (patch 8): applied further cleanup: removed a pre-existing, unnecessary release and reacquire of mmap_sem. Moved the DAX vma checks from the vfio call site, to gup internals, and added comments (and commit log) to clarify. * Due to the above, made a corresponding fix to the pin_longterm_pages_remote(), which was actually calling the wrong gup internal function. * Changed put_user_page() comments, to refer to pin*() APIs, rather than get_user_pages*() APIs. * Reverted an accidental whitespace-only change in the IB ODP code. * Added a few more reviewed-by tags. Changes since v2: * Added a patch to convert IB/umem from normal gup, to gup_fast(). This is also posted separately, in order to hopefully get some runtime testing. * Changed the page devmap code to be a little clearer, thanks to Jerome for that. * Split out the page devmap changes into a separate patch (and moved Ira's Signed-off-by to that patch). * Fixed my bug in IB: ODP code does not require pin_user_pages() semantics. Therefore, revert the put_user_page() calls to put_page(), and leave the get_user_pages() call as-is. * As part of the revert, I am proposing here a change directly from put_user_pages(), to release_pages(). I'd feel better if someone agrees that this is the best way. It uses the more efficient release_pages(), instead of put_page() in a loop, and keep the change to just a few character on one line, but OTOH it is not a pure revert. * Loosened the FOLL_LONGTERM restrictions in the __get_user_pages_locked() implementation, and used that in order to fix up a VFIO bug. Thanks to Jason for that idea. * Note the use of release_pages() in IB: is that OK? * Added a few more WARN's and clarifying comments nearby. * Many documentation improvements in various comments. * Moved the new pin_user_pages.rst from Documentation/vm/ to Documentation/core-api/ . * Commit descriptions: added clarifying notes to the three patches (drm/via, fs/io_uring, net/xdp) that already had put_user_page() calls in place. * Collected all pending Reviewed-by and Acked-by tags, from v1 and v2 email threads. * Lot of churn from v2 --> v3, so it's possible that new bugs sneaked in. NOT DONE: separate patchset is required: * __get_user_pages_locked(): stop compensating for buggy callers who failed to set FOLL_GET. Instead, assert that FOLL_GET is set (and fail if it's not). ====================================================================== Original cover letter (edited to fix up the patch description numbers) This applies cleanly to linux-next and mmotm, and also to linux.git if linux-next's commit 20cac10710c9 ("mm/gup_benchmark: fix MAP_HUGETLB case") is first applied there. This provides tracking of dma-pinned pages. This is a prerequisite to solving the larger problem of proper interactions between file-backed pages, and [R]DMA activities, as discussed in [1], [2], [3], and in a remarkable number of email threads since about 2017. :) A new internal gup flag, FOLL_PIN is introduced, and thoroughly documented in the last patch's Documentation/vm/pin_user_pages.rst. I believe that this will provide a good starting point for doing the layout lease work that Ira Weiny has been working on. That's because these new wrapper functions provide a clean, constrained, systematically named set of functionality that, again, is required in order to even know if a page is "dma-pinned". In contrast to earlier approaches, the page tracking can be incrementally applied to the kernel call sites that, until now, have been simply calling get_user_pages() ("gup"). In other words, opt-in by changing from this: get_user_pages() (sets FOLL_GET) put_page() to this: pin_user_pages() (sets FOLL_PIN) put_user_page() Because there are interdependencies with FOLL_LONGTERM, a similar conversion as for FOLL_PIN, was applied. The change was from this: get_user_pages(FOLL_LONGTERM) (also sets FOLL_GET) put_page() to this: pin_longterm_pages() (sets FOLL_PIN | FOLL_LONGTERM) put_user_page() ============================================================ Patch summary: * Patches 1-9: refactoring and preparatory cleanup, independent fixes * Patch 10: introduce pin_user_pages(), FOLL_PIN, but no functional changes yet * Patches 11-16: Convert existing put_user_page() callers, to use the new pin*() * Patch 17: Activate tracking of FOLL_PIN pages. * Patches 18-20: convert various callers * Patches: 21-23: gup_benchmark and run_vmtests support * Patch 24: rename put_user_page*() --> unpin_user_page*() ============================================================ Testing: * I've done some overall kernel testing (LTP, and a few other goodies), and some directed testing to exercise some of the changes. And as you can see, gup_benchmark is enhanced to exercise this. Basically, I've been able to runtime test the core get_user_pages() and pin_user_pages() and related routines, but not so much on several of the call sites--but those are generally just a couple of lines changed, each. Not much of the kernel is actually using this, which on one hand reduces risk quite a lot. But on the other hand, testing coverage is low. So I'd love it if, in particular, the Infiniband and PowerPC folks could do a smoke test of this series for me. Also, my runtime testing for the call sites so far is very weak: * io_uring: Some directed tests from liburing exercise this, and they pass. * process_vm_access.c: A small directed test passes. * gup_benchmark: the enhanced version hits the new gup.c code, and passes. * infiniband (still only have crude "IB pingpong" working, on a good day: it's not exercising my conversions at runtime...) * VFIO: compiles (I'm vowing to set up a run time test soon, but it's not ready just yet) * powerpc: it compiles... * drm/via: compiles... * goldfish: compiles... * net/xdp: compiles... * media/v4l2: compiles... ============================================================ Next: * Get the block/bio_vec sites converted to use pin_user_pages(). * Work with Ira and Dave Chinner to weave this together with the layout lease stuff. ============================================================ [1] Some slow progress on get_user_pages() (Apr 2, 2019): https://lwn.net/Articles/784574/ [2] DMA and get_user_pages() (LPC: Dec 12, 2018): https://lwn.net/Articles/774411/ [3] The trouble with get_user_pages() (Apr 30, 2018): https://lwn.net/Articles/753027/ Dan Williams (1): mm: Cleanup __put_devmap_managed_page() vs ->page_free() John Hubbard (23): mm/gup: pass flags arg to __gup_device_* functions mm/gup: factor out duplicate code from four routines mm/gup: move try_get_compound_head() to top, fix minor issues mm: devmap: refactor 1-based refcounting for ZONE_DEVICE pages goldish_pipe: rename local pin_user_pages() routine IB/umem: use get_user_pages_fast() to pin DMA pages media/v4l2-core: set pages dirty upon releasing DMA buffers vfio, mm: fix get_user_pages_remote() and FOLL_LONGTERM mm/gup: introduce pin_user_pages*() and FOLL_PIN goldish_pipe: convert to pin_user_pages() and put_user_page() IB/{core,hw,umem}: set FOLL_PIN via pin_user_pages*(), fix up ODP mm/process_vm_access: set FOLL_PIN via pin_user_pages_remote() drm/via: set FOLL_PIN via pin_user_pages_fast() fs/io_uring: set FOLL_PIN via pin_user_pages() net/xdp: set FOLL_PIN via pin_user_pages() mm/gup: track FOLL_PIN pages media/v4l2-core: pin_user_pages (FOLL_PIN) and put_user_page() conversion vfio, mm: pin_user_pages (FOLL_PIN) and put_user_page() conversion powerpc: book3s64: convert to pin_user_pages() and put_user_page() mm/gup_benchmark: use proper FOLL_WRITE flags instead of hard-coding "1" mm/gup_benchmark: support pin_user_pages() and related calls selftests/vm: run_vmtests: invoke gup_benchmark with basic FOLL_PIN coverage mm, tree-wide: rename put_user_page*() to unpin_user_page*() Documentation/core-api/index.rst | 1 + Documentation/core-api/pin_user_pages.rst | 233 ++++++++ arch/powerpc/mm/book3s64/iommu_api.c | 12 +- drivers/gpu/drm/via/via_dmablit.c | 6 +- drivers/infiniband/core/umem.c | 19 +- drivers/infiniband/core/umem_odp.c | 13 +- drivers/infiniband/hw/hfi1/user_pages.c | 4 +- drivers/infiniband/hw/mthca/mthca_memfree.c | 8 +- drivers/infiniband/hw/qib/qib_user_pages.c | 4 +- drivers/infiniband/hw/qib/qib_user_sdma.c | 8 +- drivers/infiniband/hw/usnic/usnic_uiom.c | 4 +- drivers/infiniband/sw/siw/siw_mem.c | 4 +- drivers/media/v4l2-core/videobuf-dma-sg.c | 8 +- drivers/nvdimm/pmem.c | 6 - drivers/platform/goldfish/goldfish_pipe.c | 35 +- drivers/vfio/vfio_iommu_type1.c | 35 +- fs/io_uring.c | 6 +- include/linux/mm.h | 155 +++++- include/linux/mmzone.h | 2 + include/linux/page_ref.h | 10 + mm/gup.c | 561 +++++++++++++++----- mm/gup_benchmark.c | 74 ++- mm/huge_memory.c | 54 +- mm/hugetlb.c | 39 +- mm/memremap.c | 76 ++- mm/process_vm_access.c | 28 +- mm/vmstat.c | 2 + net/xdp/xdp_umem.c | 4 +- tools/testing/selftests/vm/gup_benchmark.c | 21 +- tools/testing/selftests/vm/run_vmtests | 22 + 30 files changed, 1104 insertions(+), 350 deletions(-) create mode 100644 Documentation/core-api/pin_user_pages.rst -- 2.24.0

5 years, 10 months

4
38
0 0

[PATCH v4 0/2] HMM tests and minor fixes

by Ralph Campbell

These changes are based on Jason's rdma/hmm branch (5.4.0-rc5). Patch 1 was previously posted here [1] but was dropped from that orginal series. Hopefully, the tests will reduce concerns about edge conditions. I'm sure more tests could be usefully added but I thought this was a good starting point. Changes since v3: patch 1: Unchanged except rebased on Jason's latest hmm (bbe3329e354d3ab5dc18). patch 2: Is now part of Jason's tree. patch 3 (now 2): Major changes to incorporate Jason's review feedback. * drivers/char/hmm_dmirror.c driver moved to lib/test_hmm.c * XArray used instead of "page tables". * platform device driver removed. * remove redundant copyright. Changes since v2: patch 1: Removed hmm_range_needs_fault() and just use hmm_range_need_fault(). Updated the change log to include that it fixes a bug where hmm_range_fault() incorrectly returned an error when no fault is requested. patch 2: Removed the confusing change log wording about DMA. Changed hmm_range_fault() to return the PFN of the zero page like any other page. patch 3: Adjusted the test code to match the new zero page behavior. Changes since v1: Rebased to Jason's rdma/hmm branch (5.4.0-rc1). Cleaned up locking for the test driver's page tables. Incorporated Christoph Hellwig's comments. [1] https://lore.kernel.org/linux-mm/20190726005650.2566-6-rcampbell@nvidia.com/ Ralph Campbell (2): mm/hmm: make full use of walk_page_range() mm/hmm/test: add self tests for HMM MAINTAINERS | 3 + include/uapi/linux/test_hmm.h | 59 ++ lib/Kconfig.debug | 11 + lib/Makefile | 1 + lib/test_hmm.c | 1306 ++++++++++++++++++++++++ mm/hmm.c | 121 ++- tools/testing/selftests/vm/.gitignore | 1 + tools/testing/selftests/vm/Makefile | 3 + tools/testing/selftests/vm/config | 2 + tools/testing/selftests/vm/hmm-tests.c | 1295 +++++++++++++++++++++++ tools/testing/selftests/vm/run_vmtests | 16 + tools/testing/selftests/vm/test_hmm.sh | 97 ++ 12 files changed, 2852 insertions(+), 63 deletions(-) create mode 100644 include/uapi/linux/test_hmm.h create mode 100644 lib/test_hmm.c create mode 100644 tools/testing/selftests/vm/hmm-tests.c create mode 100755 tools/testing/selftests/vm/test_hmm.sh -- 2.20.1

5 years, 10 months

5
14
0 0

next-20191118 kselftest results

by ci_notify＠linaro.org

Summary ------------------------------------------------------------------------ kernel: 5.4.0-rc7 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git branch: master git commit: 519ead8f6a3215406afc6e56c596388a690f2edc git describe: next-20191118 Test details: https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20191118 Regressions (compared to build next-20191115) ------------------------------------------------------------------------ No regressions Fixes (compared to build next-20191115) ------------------------------------------------------------------------ No fixes In total: ------------------------------------------------------------------------ Ran 653 total tests in the following environments and test suites. pass 281 fail 310 xfail 0 skip 62 Environments -------------- - dragonboard-410c - arm64 - hi6220-hikey - arm64 - i386 - juno-r2 - arm64 - qemu_arm - qemu_arm64 - qemu_i386 - qemu_x86_64 - x15 - arm - x86_64 Test Suites ----------- * kselftest Failures ------------------------------------------------------------------------ dragonboard-410c: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_duplicated_fpsimd * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lpm_map * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/bpf_xdping * kselftest/clone3_clone3 * kselftest/clone3_clone3_clear_sighand * kselftest/clone3_clone3_set_tid * kselftest/firmware_fw_run_tests.sh * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_mmio_warning_test * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest/kvm_xss_msr_test * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_rule_tests.sh * kselftest/net_fib_tests.sh * kselftest/netfilter_nft_nat.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_run_netsocktests * kselftest/net_tcp_fastopen_backup_key.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/pidfd_pidfd_fdinfo_test * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pidfd_pidfd_test * kselftest/pidfd_pidfd_wait * kselftest/pstore_pstore_tests * kselftest/rseq_basic_percpu_ops_test * kselftest/rtc_rtctest * kselftest/timers_rtcpie * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh qemu_arm64: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_duplicated_fpsimd * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lpm_map * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/bpf_xdping * kselftest/clone3_clone3 * kselftest/clone3_clone3_clear_sighand * kselftest/clone3_clone3_set_tid * kselftest/cpufreq_main.sh x15: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_hashmap * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/bpf_xdping * kselftest/clone3_clone3_clear_sighand * kselftest/epoll_epoll_wakeup_test * kselftest/firmware_fw_run_tests.sh * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_mmio_warning_test * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest/kvm_xss_msr_test * kselftest/lib_bitmap.sh * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_rule_tests.sh * kselftest/net_fib_tests.sh * kselftest/netfilter_conntrack_icmp_related.sh * kselftest/netfilter_nft_nat.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_reuseport_bpf_numa * kselftest/net_run_netsocktests * kselftest/net_tcp_fastopen_backup_key.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pidfd_pidfd_test * kselftest/proc_proc-self-syscall * kselftest/pstore_pstore_tests * kselftest/rseq_basic_percpu_ops_test * kselftest/rtc_rtctest * kselftest/seccomp_seccomp_benchmark * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh qemu_arm: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_hashmap * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/bpf_xdping * kselftest/clone3_clone3_clear_sighand * kselftest/cpufreq_main.sh * kselftest/firmware_fw_run_tests.sh * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_mmio_warning_test * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest/kvm_xss_msr_test * kselftest/lib_bitmap.sh * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_rule_tests.sh * kselftest/net_fib_tests.sh * kselftest/netfilter_conntrack_icmp_related.sh * kselftest/netfilter_nft_nat.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_reuseport_bpf_numa * kselftest/net_run_netsocktests * kselftest/net_so_txtime.sh * kselftest/net_tcp_fastopen_backup_key.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pidfd_pidfd_test * kselftest/proc_proc-self-syscall * kselftest/pstore_pstore_tests * kselftest/rseq_basic_percpu_ops_test * kselftest/rtc_rtctest * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh hi6220-hikey: Skips ------------------------------------------------------------------------ No skips -- Linaro LKFT https://lkft.linaro.org

5 years, 10 months

1
0
0 0

[PATCH v17 00/13] open: introduce openat2(2) syscall

by Aleksa Sarai

This patchset is being developed here: <https://github.com/cyphar/linux/tree/openat2/master> Patch changelog: v17: * Add a path_is_under() check for LOOKUP_IS_SCOPED in complete_walk(), as a last line of defence to ensure that namei bugs will not break the contract of LOOKUP_BENEATH or LOOKUP_IN_ROOT. * Update based on feedback by Al Viro: * Make nd_jump_link() free the passed path on error, so that callers don't need to worry about it in the error path. * Remove needless m_retry and r_retry variables in handle_dots(). * Always return -ECHILD from follow_dotdot_rcu(). v16: <https://lore.kernel.org/lkml/20191116002802.6663-1-cyphar@cyphar.com/> v15: <https://lore.kernel.org/lkml/20191105090553.6350-1-cyphar@cyphar.com/> v14: <https://lore.kernel.org/lkml/20191010054140.8483-1-cyphar@cyphar.com/> <https://lore.kernel.org/lkml/20191026185700.10708-1-cyphar@cyphar.com> v13: <https://lore.kernel.org/lkml/20190930183316.10190-1-cyphar@cyphar.com/> v12: <https://lore.kernel.org/lkml/20190904201933.10736-1-cyphar@cyphar.com/> v11: <https://lore.kernel.org/lkml/20190820033406.29796-1-cyphar@cyphar.com/> <https://lore.kernel.org/lkml/20190728010207.9781-1-cyphar@cyphar.com/> v10: <https://lore.kernel.org/lkml/20190719164225.27083-1-cyphar@cyphar.com/> v09: <https://lore.kernel.org/lkml/20190706145737.5299-1-cyphar@cyphar.com/> v08: <https://lore.kernel.org/lkml/20190520133305.11925-1-cyphar@cyphar.com/> v07: <https://lore.kernel.org/lkml/20190507164317.13562-1-cyphar@cyphar.com/> v06: <https://lore.kernel.org/lkml/20190506165439.9155-1-cyphar@cyphar.com/> v05: <https://lore.kernel.org/lkml/20190320143717.2523-1-cyphar@cyphar.com/> v04: <https://lore.kernel.org/lkml/20181112142654.341-1-cyphar@cyphar.com/> v03: <https://lore.kernel.org/lkml/20181009070230.12884-1-cyphar@cyphar.com/> v02: <https://lore.kernel.org/lkml/20181009065300.11053-1-cyphar@cyphar.com/> v01: <https://lore.kernel.org/lkml/20180929103453.12025-1-cyphar@cyphar.com/> For a very long time, extending openat(2) with new features has been incredibly frustrating. This stems from the fact that openat(2) is possibly the most famous counter-example to the mantra "don't silently accept garbage from userspace" -- it doesn't check whether unknown flags are present[1]. This means that (generally) the addition of new flags to openat(2) has been fraught with backwards-compatibility issues (O_TMPFILE has to be defined as __O_TMPFILE|O_DIRECTORY|[O_RDWR or O_WRONLY] to ensure old kernels gave errors, since it's insecure to silently ignore the flag[2]). All new security-related flags therefore have a tough road to being added to openat(2). Furthermore, the need for some sort of control over VFS's path resolution (to avoid malicious paths resulting in inadvertent breakouts) has been a very long-standing desire of many userspace applications. This patchset is a revival of Al Viro's old AT_NO_JUMPS[3] patchset (which was a variant of David Drysdale's O_BENEATH patchset[4] which was a spin-off of the Capsicum project[5]) with a few additions and changes made based on the previous discussion within [6] as well as others I felt were useful. In line with the conclusions of the original discussion of AT_NO_JUMPS, the flag has been split up into separate flags. However, instead of being an openat(2) flag it is provided through a new syscall openat2(2) which provides several other improvements to the openat(2) interface (see the patch description for more details). The following new LOOKUP_* flags are added: * LOOKUP_NO_XDEV blocks all mountpoint crossings (upwards, downwards, or through absolute links). Absolute pathnames alone in openat(2) do not trigger this. Magic-link traversal which implies a vfsmount jump is also blocked (though magic-link jumps on the same vfsmount are permitted). * LOOKUP_NO_MAGICLINKS blocks resolution through /proc/$pid/fd-style links. This is done by blocking the usage of nd_jump_link() during resolution in a filesystem. The term "magic-links" is used to match with the only reference to these links in Documentation/, but I'm happy to change the name. It should be noted that this is different to the scope of ~LOOKUP_FOLLOW in that it applies to all path components. However, you can do openat2(NO_FOLLOW|NO_MAGICLINKS) on a magic-link and it will *not* fail (assuming that no parent component was a magic-link), and you will have an fd for the magic-link. In order to correctly detect magic-links, the introduction of a new LOOKUP_MAGICLINK_JUMPED state flag was required. * LOOKUP_BENEATH disallows escapes to outside the starting dirfd's tree, using techniques such as ".." or absolute links. Absolute paths in openat(2) are also disallowed. Conceptually this flag is to ensure you "stay below" a certain point in the filesystem tree -- but this requires some additional to protect against various races that would allow escape using "..". Currently LOOKUP_BENEATH implies LOOKUP_NO_MAGICLINKS, because it can trivially beam you around the filesystem (breaking the protection). In future, there might be similar safety checks done as in LOOKUP_IN_ROOT, but that requires more discussion. In addition, two new flags are added that expand on the above ideas: * LOOKUP_NO_SYMLINKS does what it says on the tin. No symlink resolution is allowed at all, including magic-links. Just as with LOOKUP_NO_MAGICLINKS this can still be used with NOFOLLOW to open an fd for the symlink as long as no parent path had a symlink component. * LOOKUP_IN_ROOT is an extension of LOOKUP_BENEATH that, rather than blocking attempts to move past the root, forces all such movements to be scoped to the starting point. This provides chroot(2)-like protection but without the cost of a chroot(2) for each filesystem operation, as well as being safe against race attacks that chroot(2) is not. If a race is detected (as with LOOKUP_BENEATH) then an error is generated, and similar to LOOKUP_BENEATH it is not permitted to cross magic-links with LOOKUP_IN_ROOT. The primary need for this is from container runtimes, which currently need to do symlink scoping in userspace[7] when opening paths in a potentially malicious container. There is a long list of CVEs that could have bene mitigated by having RESOLVE_THIS_ROOT (such as CVE-2017-1002101, CVE-2017-1002102, CVE-2018-15664, and CVE-2019-5736, just to name a few). In order to make all of the above more usable, I'm working on libpathrs[8] which is a C-friendly library for safe path resolution. It features a userspace-emulated backend if the kernel doesn't support openat2(2). Hopefully we can get userspace to switch to using it, and thus get openat2(2) support for free once it's ready. Future work would include implementing things like RESOLVE_NO_AUTOMOUNT and possibly a RESOLVE_NO_REMOTE (to allow programs to be sure they don't hit DoSes though stale NFS handles). [1]: https://lwn.net/Articles/588444/ [2]: https://lore.kernel.org/lkml/CA+55aFyyxJL1LyXZeBsf2ypriraj5ut1XkNDsunRBqgVj… [3]: https://lore.kernel.org/lkml/20170429220414.GT29622@ZenIV.linux.org.uk [4]: https://lore.kernel.org/lkml/1415094884-18349-1-git-send-email-drysdale@goo… [5]: https://lore.kernel.org/lkml/1404124096-21445-1-git-send-email-drysdale@goo… [6]: https://lwn.net/Articles/723057/ [7]: https://github.com/cyphar/filepath-securejoin [8]: https://github.com/openSUSE/libpathrs The current draft of the openat2(2) man-page is included below. --8<--------------------------------------------------------------------------- OPENAT2(2) Linux Programmer's Manual OPENAT2(2) NAME openat2 - open and possibly create a file (extended) SYNOPSIS #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> int openat2(int dirfd, const char *pathname, struct open_how *how, size_t size); Note: There is no glibc wrapper for this system call; see NOTES. DESCRIPTION The openat2() system call opens the file specified by pathname. If the specified file does not exist, it may optionally (if O_CREAT is specified in how.flags) be created by openat2(). As with openat(2), if pathname is relative, then it is interpreted relative to the direc- tory referred to by the file descriptor dirfd (or the current working directory of the calling process, if dirfd is the special value AT_FDCWD.) If pathname is absolute, then dirfd is ignored (unless how.resolve contains RESOLVE_IN_ROOT, in which case pathname is resolved relative to dirfd.) The openat2() system call is an extension of openat(2) and provides a superset of its functionality. Rather than taking a single flag argument, an extensible structure (how) is passed instead to allow for future extensions. size must be set to sizeof(struct open_how), to facilitate future extensions (see the "Extensibility" section of the NOTES for more detail on how extensions are handled.) The open_how structure The following structure indicates how pathname should be opened, and acts as a superset of the flag and mode arguments to openat(2). struct open_how { __aligned_u64 flags; /* O_* flags. */ __u16 mode; /* Mode for O_{CREAT,TMPFILE}. */ __u16 __padding[3]; /* Must be zeroed. */ __aligned_u64 resolve; /* RESOLVE_* flags. */ }; Any future extensions to openat2() will be implemented as new fields appended to the above structure (or through reuse of pre-existing padding space), with the zero value of the new fields acting as though the extension were not present. The meaning of each field is as follows: flags The file creation and status flags to use for this operation. All of the O_* flags defined for openat(2) are valid openat2() flag values. Unlike openat(2), it is an error to provide openat2() unknown or conflicting flags in flags. mode File mode for the new file, with identical semantics to the mode argument to openat(2). However, unlike openat(2), it is an error to provide openat2() with a mode which contains bits other than 0777. It is an error to provide openat2() a non-zero mode if flags does not con- tain O_CREAT or O_TMPFILE. resolve Change how the components of pathname will be resolved (see path_resolu- tion(7) for background information.) The primary use case for these flags is to allow trusted programs to restrict how untrusted paths (or paths in- side untrusted directories) are resolved. The full list of resolve flags is given below. RESOLVE_NO_XDEV Disallow traversal of mount points during path resolution (including all bind mounts). Users of this flag are encouraged to make its use configurable (un- less it is used for a specific security purpose), as bind mounts are very widely used by end-users. Setting this flag indiscrimnately for all uses of openat2() may result in spurious errors on previously- functional systems. RESOLVE_NO_SYMLINKS Disallow resolution of symbolic links during path resolution. This option implies RESOLVE_NO_MAGICLINKS. If the trailing component is a symbolic link, and flags contains both O_PATH and O_NOFOLLOW, then an O_PATH file descriptor referencing the symbolic link will be returned. Users of this flag are encouraged to make its use configurable (un- less it is used for a specific security purpose), as symbolic links are very widely used by end-users. Setting this flag indiscrimnately for all uses of openat2() may result in spurious errors on previ- ously-functional systems. RESOLVE_NO_MAGICLINKS Disallow all magic link resolution during path resolution. If the trailing component is a magic link, and flags contains both O_PATH and O_NOFOLLOW, then an O_PATH file descriptor referencing the magic link will be returned. Magic-links are symbolic link-like objects that are most notably found in proc(5) (examples include /proc/[pid]/exe and /proc/[pid]/fd/*.) Due to the potential danger of unknowingly open- ing these magic links, it may be preferable for users to disable their resolution entirely (see symboliclink(7) for more details.) RESOLVE_BENEATH Do not permit the path resolution to succeed if any component of the resolution is not a descendant of the directory indicated by dirfd. This results in absolute symbolic links (and absolute values of path- name) to be rejected. Currently, this flag also disables magic link resolution. However, this may change in the future. The caller should explicitly specify RESOLVE_NO_MAGICLINKS to ensure that magic links are not resolved. RESOLVE_IN_ROOT Treat dirfd as the root directory while resolving pathname (as though the user called chroot(2) with dirfd as the argument.) Absolute sym- bolic links and ".." path components will be scoped to dirfd. If pathname is an absolute path, it is also treated relative to dirfd. However, unlike chroot(2) (which changes the filesystem root perma- nently for a process), RESOLVE_IN_ROOT allows a program to effi- ciently restrict path resolution for only certain operations. It also has several hardening features (such detecting escape attempts during .. resolution) which chroot(2) does not. Currently, this flag also disables magic link resolution. However, this may change in the future. The caller should explicitly specify RESOLVE_NO_MAGICLINKS to ensure that magic links are not resolved. It is an error to provide openat2() unknown flags in resolve. RETURN VALUE On success, a new file descriptor is returned. On error, -1 is returned, and errno is set appropriately. ERRORS The set of errors returned by openat2() includes all of the errors returned by openat(2), as well as the following additional errors: EINVAL An unknown flag or invalid value was specified in how. EINVAL mode is non-zero, but flags does not contain O_CREAT or O_TMPFILE. EINVAL size was smaller than any known version of struct open_how. E2BIG An extension was specified in how, which the current kernel does not support (see the "Extensibility" section of the NOTES for more detail on how extensions are han- dled.) EAGAIN resolve contains either RESOLVE_IN_ROOT or RESOLVE_BENEATH, and the kernel could not ensure that a ".." component didn't escape (due to a race condition or poten- tial attack.) Callers may choose to retry the openat2() call. EXDEV resolve contains either RESOLVE_IN_ROOT or RESOLVE_BENEATH, and an escape from the root during path resolution was detected. EXDEV resolve contains RESOLVE_NO_XDEV, and a path component attempted to cross a mount point. ELOOP resolve contains RESOLVE_NO_SYMLINKS, and one of the path components was a symbolic link (or magic link). ELOOP resolve contains RESOLVE_NO_MAGICLINKS, and one of the path components was a magic link. VERSIONS openat2() was added to Linux in kernel 5.FOO. CONFORMING TO This system call is Linux-specific. The semantics of RESOLVE_BENEATH were modelled after FreeBSD's O_BENEATH. NOTES Glibc does not provide a wrapper for this system call; call it using systemcall(2). Extensibility In order to allow for struct open_how to be extended in future kernel revisions, openat2() requires userspace to specify the size of struct open_how structure they are passing. By providing this information, it is possible for openat2() to provide both forwards- and backwards-compatibility — with size acting as an implicit version number (because new ex- tension fields will always be appended, the size will always increase.) This extensibil- ity design is very similar to other system calls such as perf_setattr(2), perf_event_open(2), and clone(3). If we let usize be the size of the structure according to userspace and ksize be the size of the structure which the kernel supports, then there are only three cases to consider: * If ksize equals usize, then there is no version mismatch and how can be used verbatim. * If ksize is larger than usize, then there are some extensions the kernel sup- ports which the userspace program is unaware of. Because all extensions must have their zero values be a no-op, the kernel treats all of the extension fields not set by userspace to have zero values. This provides backwards-compatibil- ity. * If ksize is smaller than usize, then there are some extensions which the userspace program is aware of but the kernel does not support. Because all ex- tensions must have their zero values be a no-op, the kernel can safely ignore the unsupported extension fields if they are all-zero. If any unsupported ex- tension fields are non-zero, then -1 is returned and errno is set to E2BIG. This provides forwards-compatibility. Therefore, most userspace programs will not need to have any special handling of exten- sions. However, if a userspace program wishes to determine what extensions the running kernel supports, they may conduct a binary search on size (to find the largest value which doesn't produce an error of E2BIG.) SEE ALSO openat(2), path_resolution(7), symlink(7) Linux 2019-11-05 OPENAT2(2) --8<--------------------------------------------------------------------------- Aleksa Sarai (13): namei: only return -ECHILD from follow_dotdot_rcu() nsfs: clean-up ns_get_path() signature to return int namei: allow nd_jump_link() to produce errors namei: allow set_root() to produce errors namei: LOOKUP_NO_SYMLINKS: block symlink resolution namei: LOOKUP_NO_MAGICLINKS: block magic-link resolution namei: LOOKUP_NO_XDEV: block mountpoint crossing namei: LOOKUP_BENEATH: O_BENEATH-like scoped resolution namei: LOOKUP_IN_ROOT: chroot-like scoped resolution namei: LOOKUP_{IN_ROOT,BENEATH}: permit limited ".." resolution open: introduce openat2(2) syscall selftests: add openat2(2) selftests Documentation: path-lookup: include new LOOKUP flags CREDITS | 4 +- Documentation/filesystems/path-lookup.rst | 68 ++- arch/alpha/kernel/syscalls/syscall.tbl | 1 + arch/arm/tools/syscall.tbl | 1 + arch/arm64/include/asm/unistd.h | 2 +- arch/arm64/include/asm/unistd32.h | 2 + arch/ia64/kernel/syscalls/syscall.tbl | 1 + arch/m68k/kernel/syscalls/syscall.tbl | 1 + arch/microblaze/kernel/syscalls/syscall.tbl | 1 + arch/mips/kernel/syscalls/syscall_n32.tbl | 1 + arch/mips/kernel/syscalls/syscall_n64.tbl | 1 + arch/mips/kernel/syscalls/syscall_o32.tbl | 1 + arch/parisc/kernel/syscalls/syscall.tbl | 1 + arch/powerpc/kernel/syscalls/syscall.tbl | 1 + arch/s390/kernel/syscalls/syscall.tbl | 1 + arch/sh/kernel/syscalls/syscall.tbl | 1 + arch/sparc/kernel/syscalls/syscall.tbl | 1 + arch/x86/entry/syscalls/syscall_32.tbl | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 1 + arch/xtensa/kernel/syscalls/syscall.tbl | 1 + fs/namei.c | 185 +++++-- fs/nsfs.c | 29 +- fs/open.c | 149 +++-- fs/proc/base.c | 3 +- fs/proc/namespaces.c | 20 +- include/linux/fcntl.h | 12 +- include/linux/namei.h | 12 +- include/linux/proc_ns.h | 4 +- include/linux/syscalls.h | 3 + include/uapi/asm-generic/unistd.h | 5 +- include/uapi/linux/fcntl.h | 40 ++ kernel/bpf/offload.c | 12 +- kernel/events/core.c | 2 +- security/apparmor/apparmorfs.c | 6 +- tools/testing/selftests/Makefile | 1 + tools/testing/selftests/openat2/.gitignore | 1 + tools/testing/selftests/openat2/Makefile | 8 + tools/testing/selftests/openat2/helpers.c | 109 ++++ tools/testing/selftests/openat2/helpers.h | 107 ++++ .../testing/selftests/openat2/openat2_test.c | 316 +++++++++++ .../selftests/openat2/rename_attack_test.c | 160 ++++++ .../testing/selftests/openat2/resolve_test.c | 523 ++++++++++++++++++ 42 files changed, 1686 insertions(+), 113 deletions(-) create mode 100644 tools/testing/selftests/openat2/.gitignore create mode 100644 tools/testing/selftests/openat2/Makefile create mode 100644 tools/testing/selftests/openat2/helpers.c create mode 100644 tools/testing/selftests/openat2/helpers.h create mode 100644 tools/testing/selftests/openat2/openat2_test.c create mode 100644 tools/testing/selftests/openat2/rename_attack_test.c create mode 100644 tools/testing/selftests/openat2/resolve_test.c base-commit: 31f4f5b495a62c9a8b15b1c3581acd5efeb9af8c -- 2.24.0

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[PATCH v16 00/12] open: introduce openat2(2) syscall

by Aleksa Sarai

This patchset is being developed here: <https://github.com/cyphar/linux/tree/openat2/master> Patch changelog: v16: * Update based on review by Al Viro: * Handle magic-link related errors from with nd_jump_link() and drop LOOKUP_MAGICLINK_JUMPED. * Drop the slash-skipping logic for LOOKUP_IN_ROOT since it's not actually necessary (link_path_walk() already does it, and it's possible that doing it slightly breaks downstream code). * Update outdated open_how documentation to match new semantics. * Update commit message to further explain why -EAGAIN is preferable for path_is_under() when checking whether ".." is safe. * Split out the set_root() and nd_jump_root() errors from the LOOKUP_BENEATH patch. * Expand path-lookup documentation changes to describe all new LOOKUP flags. * Cleanup the signature of ns_get_path() such that it returns an int (previously it returned a void * -- even though the only two possible return values were ERR_PTR or NULL). v15: <https://lore.kernel.org/lkml/20191105090553.6350-1-cyphar@cyphar.com/> v14: <https://lore.kernel.org/lkml/20191010054140.8483-1-cyphar@cyphar.com/> <https://lore.kernel.org/lkml/20191026185700.10708-1-cyphar@cyphar.com> v13: <https://lore.kernel.org/lkml/20190930183316.10190-1-cyphar@cyphar.com/> v12: <https://lore.kernel.org/lkml/20190904201933.10736-1-cyphar@cyphar.com/> v11: <https://lore.kernel.org/lkml/20190820033406.29796-1-cyphar@cyphar.com/> <https://lore.kernel.org/lkml/20190728010207.9781-1-cyphar@cyphar.com/> v10: <https://lore.kernel.org/lkml/20190719164225.27083-1-cyphar@cyphar.com/> v09: <https://lore.kernel.org/lkml/20190706145737.5299-1-cyphar@cyphar.com/> v08: <https://lore.kernel.org/lkml/20190520133305.11925-1-cyphar@cyphar.com/> v07: <https://lore.kernel.org/lkml/20190507164317.13562-1-cyphar@cyphar.com/> v06: <https://lore.kernel.org/lkml/20190506165439.9155-1-cyphar@cyphar.com/> v05: <https://lore.kernel.org/lkml/20190320143717.2523-1-cyphar@cyphar.com/> v04: <https://lore.kernel.org/lkml/20181112142654.341-1-cyphar@cyphar.com/> v03: <https://lore.kernel.org/lkml/20181009070230.12884-1-cyphar@cyphar.com/> v02: <https://lore.kernel.org/lkml/20181009065300.11053-1-cyphar@cyphar.com/> v01: <https://lore.kernel.org/lkml/20180929103453.12025-1-cyphar@cyphar.com/> For a very long time, extending openat(2) with new features has been incredibly frustrating. This stems from the fact that openat(2) is possibly the most famous counter-example to the mantra "don't silently accept garbage from userspace" -- it doesn't check whether unknown flags are present[1]. This means that (generally) the addition of new flags to openat(2) has been fraught with backwards-compatibility issues (O_TMPFILE has to be defined as __O_TMPFILE|O_DIRECTORY|[O_RDWR or O_WRONLY] to ensure old kernels gave errors, since it's insecure to silently ignore the flag[2]). All new security-related flags therefore have a tough road to being added to openat(2). Furthermore, the need for some sort of control over VFS's path resolution (to avoid malicious paths resulting in inadvertent breakouts) has been a very long-standing desire of many userspace applications. This patchset is a revival of Al Viro's old AT_NO_JUMPS[3] patchset (which was a variant of David Drysdale's O_BENEATH patchset[4] which was a spin-off of the Capsicum project[5]) with a few additions and changes made based on the previous discussion within [6] as well as others I felt were useful. In line with the conclusions of the original discussion of AT_NO_JUMPS, the flag has been split up into separate flags. However, instead of being an openat(2) flag it is provided through a new syscall openat2(2) which provides several other improvements to the openat(2) interface (see the patch description for more details). The following new LOOKUP_* flags are added: * LOOKUP_NO_XDEV blocks all mountpoint crossings (upwards, downwards, or through absolute links). Absolute pathnames alone in openat(2) do not trigger this. Magic-link traversal which implies a vfsmount jump is also blocked (though magic-link jumps on the same vfsmount are permitted). * LOOKUP_NO_MAGICLINKS blocks resolution through /proc/$pid/fd-style links. This is done by blocking the usage of nd_jump_link() during resolution in a filesystem. The term "magic-links" is used to match with the only reference to these links in Documentation/, but I'm happy to change the name. It should be noted that this is different to the scope of ~LOOKUP_FOLLOW in that it applies to all path components. However, you can do openat2(NO_FOLLOW|NO_MAGICLINKS) on a magic-link and it will *not* fail (assuming that no parent component was a magic-link), and you will have an fd for the magic-link. In order to correctly detect magic-links, the introduction of a new LOOKUP_MAGICLINK_JUMPED state flag was required. * LOOKUP_BENEATH disallows escapes to outside the starting dirfd's tree, using techniques such as ".." or absolute links. Absolute paths in openat(2) are also disallowed. Conceptually this flag is to ensure you "stay below" a certain point in the filesystem tree -- but this requires some additional to protect against various races that would allow escape using "..". Currently LOOKUP_BENEATH implies LOOKUP_NO_MAGICLINKS, because it can trivially beam you around the filesystem (breaking the protection). In future, there might be similar safety checks done as in LOOKUP_IN_ROOT, but that requires more discussion. In addition, two new flags are added that expand on the above ideas: * LOOKUP_NO_SYMLINKS does what it says on the tin. No symlink resolution is allowed at all, including magic-links. Just as with LOOKUP_NO_MAGICLINKS this can still be used with NOFOLLOW to open an fd for the symlink as long as no parent path had a symlink component. * LOOKUP_IN_ROOT is an extension of LOOKUP_BENEATH that, rather than blocking attempts to move past the root, forces all such movements to be scoped to the starting point. This provides chroot(2)-like protection but without the cost of a chroot(2) for each filesystem operation, as well as being safe against race attacks that chroot(2) is not. If a race is detected (as with LOOKUP_BENEATH) then an error is generated, and similar to LOOKUP_BENEATH it is not permitted to cross magic-links with LOOKUP_IN_ROOT. The primary need for this is from container runtimes, which currently need to do symlink scoping in userspace[7] when opening paths in a potentially malicious container. There is a long list of CVEs that could have bene mitigated by having RESOLVE_THIS_ROOT (such as CVE-2017-1002101, CVE-2017-1002102, CVE-2018-15664, and CVE-2019-5736, just to name a few). In order to make all of the above more usable, I'm working on libpathrs[8] which is a C-friendly library for safe path resolution. It features a userspace-emulated backend if the kernel doesn't support openat2(2). Hopefully we can get userspace to switch to using it, and thus get openat2(2) support for free once it's ready. Future work would include implementing things like RESOLVE_NO_AUTOMOUNT and possibly a RESOLVE_NO_REMOTE (to allow programs to be sure they don't hit DoSes though stale NFS handles). [1]: https://lwn.net/Articles/588444/ [2]: https://lore.kernel.org/lkml/CA+55aFyyxJL1LyXZeBsf2ypriraj5ut1XkNDsunRBqgVj… [3]: https://lore.kernel.org/lkml/20170429220414.GT29622@ZenIV.linux.org.uk [4]: https://lore.kernel.org/lkml/1415094884-18349-1-git-send-email-drysdale@goo… [5]: https://lore.kernel.org/lkml/1404124096-21445-1-git-send-email-drysdale@goo… [6]: https://lwn.net/Articles/723057/ [7]: https://github.com/cyphar/filepath-securejoin [8]: https://github.com/openSUSE/libpathrs The current draft of the openat2(2) man-page is included below. --8<--------------------------------------------------------------------------- OPENAT2(2) Linux Programmer's Manual OPENAT2(2) NAME openat2 - open and possibly create a file (extended) SYNOPSIS #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> int openat2(int dirfd, const char *pathname, struct open_how *how, size_t size); Note: There is no glibc wrapper for this system call; see NOTES. DESCRIPTION The openat2() system call opens the file specified by pathname. If the specified file does not exist, it may optionally (if O_CREAT is specified in how.flags) be created by openat2(). As with openat(2), if pathname is relative, then it is interpreted relative to the direc- tory referred to by the file descriptor dirfd (or the current working directory of the calling process, if dirfd is the special value AT_FDCWD.) If pathname is absolute, then dirfd is ignored (unless how.resolve contains RESOLVE_IN_ROOT, in which case pathname is resolved relative to dirfd.) The openat2() system call is an extension of openat(2) and provides a superset of its functionality. Rather than taking a single flag argument, an extensible structure (how) is passed instead to allow for future extensions. size must be set to sizeof(struct open_how), to facilitate future extensions (see the "Extensibility" section of the NOTES for more detail on how extensions are handled.) The open_how structure The following structure indicates how pathname should be opened, and acts as a superset of the flag and mode arguments to openat(2). struct open_how { __aligned_u64 flags; /* O_* flags. */ __u16 mode; /* Mode for O_{CREAT,TMPFILE}. */ __u16 __padding[3]; /* Must be zeroed. */ __aligned_u64 resolve; /* RESOLVE_* flags. */ }; Any future extensions to openat2() will be implemented as new fields appended to the above structure (or through reuse of pre-existing padding space), with the zero value of the new fields acting as though the extension were not present. The meaning of each field is as follows: flags The file creation and status flags to use for this operation. All of the O_* flags defined for openat(2) are valid openat2() flag values. Unlike openat(2), it is an error to provide openat2() unknown or conflicting flags in flags. mode File mode for the new file, with identical semantics to the mode argument to openat(2). However, unlike openat(2), it is an error to provide openat2() with a mode which contains bits other than 0777. It is an error to provide openat2() a non-zero mode if flags does not con- tain O_CREAT or O_TMPFILE. resolve Change how the components of pathname will be resolved (see path_resolu- tion(7) for background information.) The primary use case for these flags is to allow trusted programs to restrict how untrusted paths (or paths in- side untrusted directories) are resolved. The full list of resolve flags is given below. RESOLVE_NO_XDEV Disallow traversal of mount points during path resolution (including all bind mounts). Users of this flag are encouraged to make its use configurable (un- less it is used for a specific security purpose), as bind mounts are very widely used by end-users. Setting this flag indiscrimnately for all uses of openat2() may result in spurious errors on previously- functional systems. RESOLVE_NO_SYMLINKS Disallow resolution of symbolic links during path resolution. This option implies RESOLVE_NO_MAGICLINKS. If the trailing component is a symbolic link, and flags contains both O_PATH and O_NOFOLLOW, then an O_PATH file descriptor referencing the symbolic link will be returned. Users of this flag are encouraged to make its use configurable (un- less it is used for a specific security purpose), as symbolic links are very widely used by end-users. Setting this flag indiscrimnately for all uses of openat2() may result in spurious errors on previ- ously-functional systems. RESOLVE_NO_MAGICLINKS Disallow all magic link resolution during path resolution. If the trailing component is a magic link, and flags contains both O_PATH and O_NOFOLLOW, then an O_PATH file descriptor referencing the magic link will be returned. Magic-links are symbolic link-like objects that are most notably found in proc(5) (examples include /proc/[pid]/exe and /proc/[pid]/fd/*.) Due to the potential danger of unknowingly open- ing these magic links, it may be preferable for users to disable their resolution entirely (see symboliclink(7) for more details.) RESOLVE_BENEATH Do not permit the path resolution to succeed if any component of the resolution is not a descendant of the directory indicated by dirfd. This results in absolute symbolic links (and absolute values of path- name) to be rejected. Currently, this flag also disables magic link resolution. However, this may change in the future. The caller should explicitly specify RESOLVE_NO_MAGICLINKS to ensure that magic links are not resolved. RESOLVE_IN_ROOT Treat dirfd as the root directory while resolving pathname (as though the user called chroot(2) with dirfd as the argument.) Absolute sym- bolic links and ".." path components will be scoped to dirfd. If pathname is an absolute path, it is also treated relative to dirfd. However, unlike chroot(2) (which changes the filesystem root perma- nently for a process), RESOLVE_IN_ROOT allows a program to effi- ciently restrict path resolution for only certain operations. It also has several hardening features (such detecting escape attempts during .. resolution) which chroot(2) does not. Currently, this flag also disables magic link resolution. However, this may change in the future. The caller should explicitly specify RESOLVE_NO_MAGICLINKS to ensure that magic links are not resolved. It is an error to provide openat2() unknown flags in resolve. RETURN VALUE On success, a new file descriptor is returned. On error, -1 is returned, and errno is set appropriately. ERRORS The set of errors returned by openat2() includes all of the errors returned by openat(2), as well as the following additional errors: EINVAL An unknown flag or invalid value was specified in how. EINVAL mode is non-zero, but flags does not contain O_CREAT or O_TMPFILE. EINVAL size was smaller than any known version of struct open_how. E2BIG An extension was specified in how, which the current kernel does not support (see the "Extensibility" section of the NOTES for more detail on how extensions are han- dled.) EAGAIN resolve contains either RESOLVE_IN_ROOT or RESOLVE_BENEATH, and the kernel could not ensure that a ".." component didn't escape (due to a race condition or poten- tial attack.) Callers may choose to retry the openat2() call. EXDEV resolve contains either RESOLVE_IN_ROOT or RESOLVE_BENEATH, and an escape from the root during path resolution was detected. EXDEV resolve contains RESOLVE_NO_XDEV, and a path component attempted to cross a mount point. ELOOP resolve contains RESOLVE_NO_SYMLINKS, and one of the path components was a symbolic link (or magic link). ELOOP resolve contains RESOLVE_NO_MAGICLINKS, and one of the path components was a magic link. VERSIONS openat2() was added to Linux in kernel 5.FOO. CONFORMING TO This system call is Linux-specific. The semantics of RESOLVE_BENEATH were modelled after FreeBSD's O_BENEATH. NOTES Glibc does not provide a wrapper for this system call; call it using systemcall(2). Extensibility In order to allow for struct open_how to be extended in future kernel revisions, openat2() requires userspace to specify the size of struct open_how structure they are passing. By providing this information, it is possible for openat2() to provide both forwards- and backwards-compatibility — with size acting as an implicit version number (because new ex- tension fields will always be appended, the size will always increase.) This extensibil- ity design is very similar to other system calls such as perf_setattr(2), perf_event_open(2), and clone(3). If we let usize be the size of the structure according to userspace and ksize be the size of the structure which the kernel supports, then there are only three cases to consider: * If ksize equals usize, then there is no version mismatch and how can be used verbatim. * If ksize is larger than usize, then there are some extensions the kernel sup- ports which the userspace program is unaware of. Because all extensions must have their zero values be a no-op, the kernel treats all of the extension fields not set by userspace to have zero values. This provides backwards-compatibil- ity. * If ksize is smaller than usize, then there are some extensions which the userspace program is aware of but the kernel does not support. Because all ex- tensions must have their zero values be a no-op, the kernel can safely ignore the unsupported extension fields if they are all-zero. If any unsupported ex- tension fields are non-zero, then -1 is returned and errno is set to E2BIG. This provides forwards-compatibility. Therefore, most userspace programs will not need to have any special handling of exten- sions. However, if a userspace program wishes to determine what extensions the running kernel supports, they may conduct a binary search on size (to find the largest value which doesn't produce an error of E2BIG.) SEE ALSO openat(2), path_resolution(7), symlink(7) Linux 2019-11-05 OPENAT2(2) --8<--------------------------------------------------------------------------- Aleksa Sarai (12): nsfs: clean-up ns_get_path() signature to return int namei: allow nd_jump_link() to produce errors namei: allow set_root() to produce errors namei: LOOKUP_NO_SYMLINKS: block symlink resolution namei: LOOKUP_NO_MAGICLINKS: block magic-link resolution namei: LOOKUP_NO_XDEV: block mountpoint crossing namei: LOOKUP_BENEATH: O_BENEATH-like scoped resolution namei: LOOKUP_IN_ROOT: chroot-like scoped resolution namei: LOOKUP_{IN_ROOT,BENEATH}: permit limited ".." resolution open: introduce openat2(2) syscall selftests: add openat2(2) selftests Documentation: path-lookup: include new LOOKUP flags CREDITS | 4 +- Documentation/filesystems/path-lookup.rst | 68 ++- arch/alpha/kernel/syscalls/syscall.tbl | 1 + arch/arm/tools/syscall.tbl | 1 + arch/arm64/include/asm/unistd.h | 2 +- arch/arm64/include/asm/unistd32.h | 2 + arch/ia64/kernel/syscalls/syscall.tbl | 1 + arch/m68k/kernel/syscalls/syscall.tbl | 1 + arch/microblaze/kernel/syscalls/syscall.tbl | 1 + arch/mips/kernel/syscalls/syscall_n32.tbl | 1 + arch/mips/kernel/syscalls/syscall_n64.tbl | 1 + arch/mips/kernel/syscalls/syscall_o32.tbl | 1 + arch/parisc/kernel/syscalls/syscall.tbl | 1 + arch/powerpc/kernel/syscalls/syscall.tbl | 1 + arch/s390/kernel/syscalls/syscall.tbl | 1 + arch/sh/kernel/syscalls/syscall.tbl | 1 + arch/sparc/kernel/syscalls/syscall.tbl | 1 + arch/x86/entry/syscalls/syscall_32.tbl | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 1 + arch/xtensa/kernel/syscalls/syscall.tbl | 1 + fs/namei.c | 166 ++++-- fs/nsfs.c | 29 +- fs/open.c | 149 +++-- fs/proc/base.c | 5 +- fs/proc/namespaces.c | 23 +- include/linux/fcntl.h | 12 +- include/linux/namei.h | 12 +- include/linux/proc_ns.h | 4 +- include/linux/syscalls.h | 3 + include/uapi/asm-generic/unistd.h | 5 +- include/uapi/linux/fcntl.h | 40 ++ kernel/bpf/offload.c | 12 +- kernel/events/core.c | 2 +- security/apparmor/apparmorfs.c | 8 +- tools/testing/selftests/Makefile | 1 + tools/testing/selftests/openat2/.gitignore | 1 + tools/testing/selftests/openat2/Makefile | 8 + tools/testing/selftests/openat2/helpers.c | 109 ++++ tools/testing/selftests/openat2/helpers.h | 107 ++++ .../testing/selftests/openat2/openat2_test.c | 316 +++++++++++ .../selftests/openat2/rename_attack_test.c | 160 ++++++ .../testing/selftests/openat2/resolve_test.c | 523 ++++++++++++++++++ 42 files changed, 1675 insertions(+), 112 deletions(-) create mode 100644 tools/testing/selftests/openat2/.gitignore create mode 100644 tools/testing/selftests/openat2/Makefile create mode 100644 tools/testing/selftests/openat2/helpers.c create mode 100644 tools/testing/selftests/openat2/helpers.h create mode 100644 tools/testing/selftests/openat2/openat2_test.c create mode 100644 tools/testing/selftests/openat2/rename_attack_test.c create mode 100644 tools/testing/selftests/openat2/resolve_test.c base-commit: 31f4f5b495a62c9a8b15b1c3581acd5efeb9af8c -- 2.24.0

5 years, 10 months

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[PATCH AUTOSEL 4.4 38/77] selftests/ftrace: Fix to test kprobe $comm arg only if available

by Sasha Levin

From: Masami Hiramatsu <mhiramat(a)kernel.org> [ Upstream commit 2452c96e617a0ff6fb2692e55217a3fa57a7322c ] Test $comm in kprobe-event argument syntax testcase only if it is supported on the kernel because $comm has been introduced 4.8 kernel. So on older stable kernel, it should be skipped. Signed-off-by: Masami Hiramatsu <mhiramat(a)kernel.org> Signed-off-by: Shuah Khan (Samsung OSG) <shuah(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- .../selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc index 231bcd2c4eb59..1e7ac6f3362ff 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc @@ -71,8 +71,11 @@ test_badarg "\$stackp" "\$stack0+10" "\$stack1-10" echo "r ${PROBEFUNC} \$retval" > kprobe_events ! echo "p ${PROBEFUNC} \$retval" > kprobe_events +# $comm was introduced in 4.8, older kernels reject it. +if grep -A1 "fetcharg:" README | grep -q '\$comm' ; then : "Comm access" test_goodarg "\$comm" +fi : "Indirect memory access" test_goodarg "+0(${GOODREG})" "-0(${GOODREG})" "+10(\$stack)" \ -- 2.20.1

5 years, 10 months

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[PATCH AUTOSEL 4.9 48/99] selftests/ftrace: Fix to test kprobe $comm arg only if available

by Sasha Levin

From: Masami Hiramatsu <mhiramat(a)kernel.org> [ Upstream commit 2452c96e617a0ff6fb2692e55217a3fa57a7322c ] Test $comm in kprobe-event argument syntax testcase only if it is supported on the kernel because $comm has been introduced 4.8 kernel. So on older stable kernel, it should be skipped. Signed-off-by: Masami Hiramatsu <mhiramat(a)kernel.org> Signed-off-by: Shuah Khan (Samsung OSG) <shuah(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- .../selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc index 231bcd2c4eb59..1e7ac6f3362ff 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc @@ -71,8 +71,11 @@ test_badarg "\$stackp" "\$stack0+10" "\$stack1-10" echo "r ${PROBEFUNC} \$retval" > kprobe_events ! echo "p ${PROBEFUNC} \$retval" > kprobe_events +# $comm was introduced in 4.8, older kernels reject it. +if grep -A1 "fetcharg:" README | grep -q '\$comm' ; then : "Comm access" test_goodarg "\$comm" +fi : "Indirect memory access" test_goodarg "+0(${GOODREG})" "-0(${GOODREG})" "+10(\$stack)" \ -- 2.20.1

5 years, 10 months

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[PATCH AUTOSEL 4.14 092/150] selftests/powerpc/cache_shape: Fix out-of-tree build

by Sasha Levin

From: Michael Ellerman <mpe(a)ellerman.id.au> [ Upstream commit 69f8117f17b332a68cd8f4bf8c2d0d3d5b84efc5 ] Use TEST_GEN_PROGS and don't redefine all, this makes the out-of-tree build work. We need to move the extra dependencies below the include of lib.mk, because it adds the $(OUTPUT) prefix if it's defined. We can also drop the clean rule, lib.mk does it for us. Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/cache_shape/Makefile | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/powerpc/cache_shape/Makefile b/tools/testing/selftests/powerpc/cache_shape/Makefile index 1be547434a49c..7e0c175b82978 100644 --- a/tools/testing/selftests/powerpc/cache_shape/Makefile +++ b/tools/testing/selftests/powerpc/cache_shape/Makefile @@ -1,11 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 -TEST_PROGS := cache_shape - -all: $(TEST_PROGS) - -$(TEST_PROGS): ../harness.c ../utils.c +TEST_GEN_PROGS := cache_shape include ../../lib.mk -clean: - rm -f $(TEST_PROGS) *.o +$(TEST_GEN_PROGS): ../harness.c ../utils.c -- 2.20.1

5 years, 10 months

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[PATCH AUTOSEL 4.14 091/150] selftests/powerpc/switch_endian: Fix out-of-tree build

by Sasha Levin

From: Michael Ellerman <mpe(a)ellerman.id.au> [ Upstream commit 266bac361d5677e61a6815bd29abeb3bdced2b07 ] For the out-of-tree build to work we need to tell switch_endian_test to look for check-reversed.S in $(OUTPUT). Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/switch_endian/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/powerpc/switch_endian/Makefile b/tools/testing/selftests/powerpc/switch_endian/Makefile index 30b8ff8fb82e7..e4cedfe9753d7 100644 --- a/tools/testing/selftests/powerpc/switch_endian/Makefile +++ b/tools/testing/selftests/powerpc/switch_endian/Makefile @@ -7,6 +7,7 @@ EXTRA_CLEAN = $(OUTPUT)/*.o $(OUTPUT)/check-reversed.S include ../../lib.mk +$(OUTPUT)/switch_endian_test: ASFLAGS += -I $(OUTPUT) $(OUTPUT)/switch_endian_test: $(OUTPUT)/check-reversed.S $(OUTPUT)/check-reversed.o: $(OUTPUT)/check.o -- 2.20.1

5 years, 10 months

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[PATCH AUTOSEL 4.14 090/150] selftests/powerpc/signal: Fix out-of-tree build

by Sasha Levin

From: Joel Stanley <joel(a)jms.id.au> [ Upstream commit 27825349d7b238533a47e3d98b8bb0efd886b752 ] We should use TEST_GEN_PROGS, not TEST_PROGS. That tells the selftests makefile (lib.mk) that those tests are generated (built), and so it adds the $(OUTPUT) prefix for us, making the out-of-tree build work correctly. It also means we don't need our own clean rule, lib.mk does it. We also have to update the signal_tm rule to use $(OUTPUT). Signed-off-by: Joel Stanley <joel(a)jms.id.au> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/signal/Makefile | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/powerpc/signal/Makefile b/tools/testing/selftests/powerpc/signal/Makefile index a7cbd5082e271..4213978f3ee2c 100644 --- a/tools/testing/selftests/powerpc/signal/Makefile +++ b/tools/testing/selftests/powerpc/signal/Makefile @@ -1,14 +1,9 @@ # SPDX-License-Identifier: GPL-2.0 -TEST_PROGS := signal signal_tm - -all: $(TEST_PROGS) - -$(TEST_PROGS): ../harness.c ../utils.c signal.S +TEST_GEN_PROGS := signal signal_tm CFLAGS += -maltivec -signal_tm: CFLAGS += -mhtm +$(OUTPUT)/signal_tm: CFLAGS += -mhtm include ../../lib.mk -clean: - rm -f $(TEST_PROGS) *.o +$(TEST_GEN_PROGS): ../harness.c ../utils.c signal.S -- 2.20.1

5 years, 10 months

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[PATCH AUTOSEL 4.14 073/150] selftests: watchdog: Fix error message.

by Sasha Levin

From: Jerry Hoemann <jerry.hoemann(a)hpe.com> [ Upstream commit 04d5e4bd37516ad60854eb74592c7dbddd75d277 ] Printf's say errno but print the string version of error. Make consistent. Signed-off-by: Jerry Hoemann <jerry.hoemann(a)hpe.com> Signed-off-by: Shuah Khan (Samsung OSG) <shuah(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/watchdog/watchdog-test.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c index e029e2017280f..f1c6e025cbe54 100644 --- a/tools/testing/selftests/watchdog/watchdog-test.c +++ b/tools/testing/selftests/watchdog/watchdog-test.c @@ -109,7 +109,7 @@ int main(int argc, char *argv[]) printf("Last boot is caused by: %s.\n", (flags != 0) ? "Watchdog" : "Power-On-Reset"); else - printf("WDIOC_GETBOOTSTATUS errno '%s'\n", strerror(errno)); + printf("WDIOC_GETBOOTSTATUS error '%s'\n", strerror(errno)); break; case 'd': flags = WDIOS_DISABLECARD; @@ -117,7 +117,7 @@ int main(int argc, char *argv[]) if (!ret) printf("Watchdog card disabled.\n"); else - printf("WDIOS_DISABLECARD errno '%s'\n", strerror(errno)); + printf("WDIOS_DISABLECARD error '%s'\n", strerror(errno)); break; case 'e': flags = WDIOS_ENABLECARD; @@ -125,7 +125,7 @@ int main(int argc, char *argv[]) if (!ret) printf("Watchdog card enabled.\n"); else - printf("WDIOS_ENABLECARD errno '%s'\n", strerror(errno)); + printf("WDIOS_ENABLECARD error '%s'\n", strerror(errno)); break; case 'p': ping_rate = strtoul(optarg, NULL, 0); @@ -139,7 +139,7 @@ int main(int argc, char *argv[]) if (!ret) printf("Watchdog timeout set to %u seconds.\n", flags); else - printf("WDIOC_SETTIMEOUT errno '%s'\n", strerror(errno)); + printf("WDIOC_SETTIMEOUT error '%s'\n", strerror(errno)); break; default: usage(argv[0]); -- 2.20.1

5 years, 10 months

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[PATCH AUTOSEL 4.14 072/150] selftests: watchdog: fix message when /dev/watchdog open fails

by Sasha Levin

From: "Shuah Khan (Samsung OSG)" <shuah(a)kernel.org> [ Upstream commit 9a244229a4b850b11952a0df79607c69b18fd8df ] When /dev/watchdog open fails, watchdog exits with "watchdog not enabled" message. This is incorrect when open fails due to insufficient privilege. Fix message to clearly state the reason when open fails with EACCESS when a non-root user runs it. Signed-off-by: Shuah Khan (Samsung OSG) <shuah(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/watchdog/watchdog-test.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c index 6e290874b70e2..e029e2017280f 100644 --- a/tools/testing/selftests/watchdog/watchdog-test.c +++ b/tools/testing/selftests/watchdog/watchdog-test.c @@ -89,7 +89,13 @@ int main(int argc, char *argv[]) fd = open("/dev/watchdog", O_WRONLY); if (fd == -1) { - printf("Watchdog device not enabled.\n"); + if (errno == ENOENT) + printf("Watchdog device not enabled.\n"); + else if (errno == EACCES) + printf("Run watchdog as root.\n"); + else + printf("Watchdog device open failed %s\n", + strerror(errno)); exit(-1); } -- 2.20.1

5 years, 10 months

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[PATCH AUTOSEL 4.14 071/150] selftests/ftrace: Fix to test kprobe $comm arg only if available

by Sasha Levin

From: Masami Hiramatsu <mhiramat(a)kernel.org> [ Upstream commit 2452c96e617a0ff6fb2692e55217a3fa57a7322c ] Test $comm in kprobe-event argument syntax testcase only if it is supported on the kernel because $comm has been introduced 4.8 kernel. So on older stable kernel, it should be skipped. Signed-off-by: Masami Hiramatsu <mhiramat(a)kernel.org> Signed-off-by: Shuah Khan (Samsung OSG) <shuah(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- .../selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc index 231bcd2c4eb59..1e7ac6f3362ff 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc @@ -71,8 +71,11 @@ test_badarg "\$stackp" "\$stack0+10" "\$stack1-10" echo "r ${PROBEFUNC} \$retval" > kprobe_events ! echo "p ${PROBEFUNC} \$retval" > kprobe_events +# $comm was introduced in 4.8, older kernels reject it. +if grep -A1 "fetcharg:" README | grep -q '\$comm' ; then : "Comm access" test_goodarg "\$comm" +fi : "Indirect memory access" test_goodarg "+0(${GOODREG})" "-0(${GOODREG})" "+10(\$stack)" \ -- 2.20.1

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[PATCH AUTOSEL 4.19 147/237] selftests/powerpc/cache_shape: Fix out-of-tree build

by Sasha Levin

From: Michael Ellerman <mpe(a)ellerman.id.au> [ Upstream commit 69f8117f17b332a68cd8f4bf8c2d0d3d5b84efc5 ] Use TEST_GEN_PROGS and don't redefine all, this makes the out-of-tree build work. We need to move the extra dependencies below the include of lib.mk, because it adds the $(OUTPUT) prefix if it's defined. We can also drop the clean rule, lib.mk does it for us. Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/cache_shape/Makefile | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/powerpc/cache_shape/Makefile b/tools/testing/selftests/powerpc/cache_shape/Makefile index ede4d3dae7505..689f6c8ebcd8d 100644 --- a/tools/testing/selftests/powerpc/cache_shape/Makefile +++ b/tools/testing/selftests/powerpc/cache_shape/Makefile @@ -1,12 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 -TEST_PROGS := cache_shape - -all: $(TEST_PROGS) - -$(TEST_PROGS): ../harness.c ../utils.c +TEST_GEN_PROGS := cache_shape top_srcdir = ../../../../.. include ../../lib.mk -clean: - rm -f $(TEST_PROGS) *.o +$(TEST_GEN_PROGS): ../harness.c ../utils.c -- 2.20.1

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[PATCH AUTOSEL 4.19 146/237] selftests/powerpc/switch_endian: Fix out-of-tree build

by Sasha Levin

From: Michael Ellerman <mpe(a)ellerman.id.au> [ Upstream commit 266bac361d5677e61a6815bd29abeb3bdced2b07 ] For the out-of-tree build to work we need to tell switch_endian_test to look for check-reversed.S in $(OUTPUT). Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/switch_endian/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/powerpc/switch_endian/Makefile b/tools/testing/selftests/powerpc/switch_endian/Makefile index fcd2dcb8972ba..bdc081afedb0f 100644 --- a/tools/testing/selftests/powerpc/switch_endian/Makefile +++ b/tools/testing/selftests/powerpc/switch_endian/Makefile @@ -8,6 +8,7 @@ EXTRA_CLEAN = $(OUTPUT)/*.o $(OUTPUT)/check-reversed.S top_srcdir = ../../../../.. include ../../lib.mk +$(OUTPUT)/switch_endian_test: ASFLAGS += -I $(OUTPUT) $(OUTPUT)/switch_endian_test: $(OUTPUT)/check-reversed.S $(OUTPUT)/check-reversed.o: $(OUTPUT)/check.o -- 2.20.1

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[PATCH AUTOSEL 4.19 145/237] selftests/powerpc/signal: Fix out-of-tree build

by Sasha Levin

From: Joel Stanley <joel(a)jms.id.au> [ Upstream commit 27825349d7b238533a47e3d98b8bb0efd886b752 ] We should use TEST_GEN_PROGS, not TEST_PROGS. That tells the selftests makefile (lib.mk) that those tests are generated (built), and so it adds the $(OUTPUT) prefix for us, making the out-of-tree build work correctly. It also means we don't need our own clean rule, lib.mk does it. We also have to update the signal_tm rule to use $(OUTPUT). Signed-off-by: Joel Stanley <joel(a)jms.id.au> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/signal/Makefile | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/powerpc/signal/Makefile b/tools/testing/selftests/powerpc/signal/Makefile index 1fca25c6ace06..209a958dca127 100644 --- a/tools/testing/selftests/powerpc/signal/Makefile +++ b/tools/testing/selftests/powerpc/signal/Makefile @@ -1,15 +1,10 @@ # SPDX-License-Identifier: GPL-2.0 -TEST_PROGS := signal signal_tm - -all: $(TEST_PROGS) - -$(TEST_PROGS): ../harness.c ../utils.c signal.S +TEST_GEN_PROGS := signal signal_tm CFLAGS += -maltivec -signal_tm: CFLAGS += -mhtm +$(OUTPUT)/signal_tm: CFLAGS += -mhtm top_srcdir = ../../../../.. include ../../lib.mk -clean: - rm -f $(TEST_PROGS) *.o +$(TEST_GEN_PROGS): ../harness.c ../utils.c signal.S -- 2.20.1

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[PATCH AUTOSEL 4.19 144/237] selftests/powerpc/ptrace: Fix out-of-tree build

by Sasha Levin

From: Joel Stanley <joel(a)jms.id.au> [ Upstream commit c39b79082a38a4f8c801790edecbbb4d62ed2992 ] We should use TEST_GEN_PROGS, not TEST_PROGS. That tells the selftests makefile (lib.mk) that those tests are generated (built), and so it adds the $(OUTPUT) prefix for us, making the out-of-tree build work correctly. It also means we don't need our own clean rule, lib.mk does it. We also have to update the ptrace-pkey and core-pkey rules to use $(OUTPUT). Signed-off-by: Joel Stanley <joel(a)jms.id.au> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/ptrace/Makefile | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/tools/testing/selftests/powerpc/ptrace/Makefile b/tools/testing/selftests/powerpc/ptrace/Makefile index 923d531265f8c..9f9423430059e 100644 --- a/tools/testing/selftests/powerpc/ptrace/Makefile +++ b/tools/testing/selftests/powerpc/ptrace/Makefile @@ -1,5 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -TEST_PROGS := ptrace-gpr ptrace-tm-gpr ptrace-tm-spd-gpr \ +TEST_GEN_PROGS := ptrace-gpr ptrace-tm-gpr ptrace-tm-spd-gpr \ ptrace-tar ptrace-tm-tar ptrace-tm-spd-tar ptrace-vsx ptrace-tm-vsx \ ptrace-tm-spd-vsx ptrace-tm-spr ptrace-hwbreak ptrace-pkey core-pkey \ perf-hwbreak @@ -7,14 +7,9 @@ TEST_PROGS := ptrace-gpr ptrace-tm-gpr ptrace-tm-spd-gpr \ top_srcdir = ../../../../.. include ../../lib.mk -all: $(TEST_PROGS) - CFLAGS += -m64 -I../../../../../usr/include -I../tm -mhtm -fno-pie -ptrace-pkey core-pkey: child.h -ptrace-pkey core-pkey: LDLIBS += -pthread - -$(TEST_PROGS): ../harness.c ../utils.c ../lib/reg.S ptrace.h +$(OUTPUT)/ptrace-pkey $(OUTPUT)/core-pkey: child.h +$(OUTPUT)/ptrace-pkey $(OUTPUT)/core-pkey: LDLIBS += -pthread -clean: - rm -f $(TEST_PROGS) *.o +$(TEST_GEN_PROGS): ../harness.c ../utils.c ../lib/reg.S ptrace.h -- 2.20.1

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[PATCH AUTOSEL 4.19 131/237] tools/testing/selftests/vm/gup_benchmark.c: fix 'write' flag usage

by Sasha Levin

From: Keith Busch <keith.busch(a)intel.com> [ Upstream commit 319e0bec1aecb36c5ac6d23812af487ff2c8f47f ] If the '-w' parameter was provided, the benchmark would exit due to a mssing 'break'. Link: http://lkml.kernel.org/r/20181010195605.10689-3-keith.busch@intel.com Signed-off-by: Keith Busch <keith.busch(a)intel.com> Acked-by: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> Reviewed-by: Andrew Morton <akpm(a)linux-foundation.org> Cc: Dave Hansen <dave.hansen(a)intel.com> Cc: Dan Williams <dan.j.williams(a)intel.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/vm/gup_benchmark.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/vm/gup_benchmark.c b/tools/testing/selftests/vm/gup_benchmark.c index 9601bc24454d9..17da711f26afb 100644 --- a/tools/testing/selftests/vm/gup_benchmark.c +++ b/tools/testing/selftests/vm/gup_benchmark.c @@ -51,6 +51,7 @@ int main(int argc, char **argv) break; case 'w': write = 1; + break; default: return -1; } -- 2.20.1

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[PATCH AUTOSEL 4.19 120/237] selftests: fix warning: "_GNU_SOURCE" redefined

by Sasha Levin

From: Peng Hao <peng.hao2(a)zte.com.cn> [ Upstream commit 0387662d1b6c5ad2950d8e94d5e380af3f15c05c ] Makefile contains -D_GNU_SOURCE. remove define "_GNU_SOURCE" in c files. Signed-off-by: Peng Hao <peng.hao2(a)zte.com.cn> Signed-off-by: Shuah Khan (Samsung OSG) <shuah(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/proc/fd-001-lookup.c | 2 +- tools/testing/selftests/proc/fd-003-kthread.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/proc/fd-001-lookup.c b/tools/testing/selftests/proc/fd-001-lookup.c index a2010dfb21104..60d7948e7124f 100644 --- a/tools/testing/selftests/proc/fd-001-lookup.c +++ b/tools/testing/selftests/proc/fd-001-lookup.c @@ -14,7 +14,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ // Test /proc/*/fd lookup. -#define _GNU_SOURCE + #undef NDEBUG #include <assert.h> #include <dirent.h> diff --git a/tools/testing/selftests/proc/fd-003-kthread.c b/tools/testing/selftests/proc/fd-003-kthread.c index 1d659d55368c2..dc591f97b63d4 100644 --- a/tools/testing/selftests/proc/fd-003-kthread.c +++ b/tools/testing/selftests/proc/fd-003-kthread.c @@ -14,7 +14,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ // Test that /proc/$KERNEL_THREAD/fd/ is empty. -#define _GNU_SOURCE + #undef NDEBUG #include <sys/syscall.h> #include <assert.h> -- 2.20.1

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[PATCH AUTOSEL 4.19 119/237] selftests: kvm: Fix -Wformat warnings

by Sasha Levin

From: Andrea Parri <andrea.parri(a)amarulasolutions.com> [ Upstream commit fb363e2d20351e1d16629df19e7bce1a31b3227a ] Fixes the following warnings: dirty_log_test.c: In function ‘help’: dirty_log_test.c:216:9: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 2 has type ‘int’ [-Wformat=] printf(" -i: specify iteration counts (default: %"PRIu64")\n", ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/test_util.h:18:0, from dirty_log_test.c:16: /usr/include/inttypes.h:105:34: note: format string is defined here # define PRIu64 __PRI64_PREFIX "u" dirty_log_test.c:218:9: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 2 has type ‘int’ [-Wformat=] printf(" -I: specify interval in ms (default: %"PRIu64" ms)\n", ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/test_util.h:18:0, from dirty_log_test.c:16: /usr/include/inttypes.h:105:34: note: format string is defined here # define PRIu64 __PRI64_PREFIX "u" Signed-off-by: Andrea Parri <andrea.parri(a)amarulasolutions.com> Signed-off-by: Shuah Khan (Samsung OSG) <shuah(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/kvm/dirty_log_test.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c index 0c2cdc105f968..a9c4b5e21d7e7 100644 --- a/tools/testing/selftests/kvm/dirty_log_test.c +++ b/tools/testing/selftests/kvm/dirty_log_test.c @@ -31,9 +31,9 @@ /* How many pages to dirty for each guest loop */ #define TEST_PAGES_PER_LOOP 1024 /* How many host loops to run (one KVM_GET_DIRTY_LOG for each loop) */ -#define TEST_HOST_LOOP_N 32 +#define TEST_HOST_LOOP_N 32UL /* Interval for each host loop (ms) */ -#define TEST_HOST_LOOP_INTERVAL 10 +#define TEST_HOST_LOOP_INTERVAL 10UL /* * Guest variables. We use these variables to share data between host -- 2.20.1

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[PATCH AUTOSEL 4.19 118/237] selftests: watchdog: Fix error message.

by Sasha Levin

From: Jerry Hoemann <jerry.hoemann(a)hpe.com> [ Upstream commit 04d5e4bd37516ad60854eb74592c7dbddd75d277 ] Printf's say errno but print the string version of error. Make consistent. Signed-off-by: Jerry Hoemann <jerry.hoemann(a)hpe.com> Signed-off-by: Shuah Khan (Samsung OSG) <shuah(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/watchdog/watchdog-test.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c index e029e2017280f..f1c6e025cbe54 100644 --- a/tools/testing/selftests/watchdog/watchdog-test.c +++ b/tools/testing/selftests/watchdog/watchdog-test.c @@ -109,7 +109,7 @@ int main(int argc, char *argv[]) printf("Last boot is caused by: %s.\n", (flags != 0) ? "Watchdog" : "Power-On-Reset"); else - printf("WDIOC_GETBOOTSTATUS errno '%s'\n", strerror(errno)); + printf("WDIOC_GETBOOTSTATUS error '%s'\n", strerror(errno)); break; case 'd': flags = WDIOS_DISABLECARD; @@ -117,7 +117,7 @@ int main(int argc, char *argv[]) if (!ret) printf("Watchdog card disabled.\n"); else - printf("WDIOS_DISABLECARD errno '%s'\n", strerror(errno)); + printf("WDIOS_DISABLECARD error '%s'\n", strerror(errno)); break; case 'e': flags = WDIOS_ENABLECARD; @@ -125,7 +125,7 @@ int main(int argc, char *argv[]) if (!ret) printf("Watchdog card enabled.\n"); else - printf("WDIOS_ENABLECARD errno '%s'\n", strerror(errno)); + printf("WDIOS_ENABLECARD error '%s'\n", strerror(errno)); break; case 'p': ping_rate = strtoul(optarg, NULL, 0); @@ -139,7 +139,7 @@ int main(int argc, char *argv[]) if (!ret) printf("Watchdog timeout set to %u seconds.\n", flags); else - printf("WDIOC_SETTIMEOUT errno '%s'\n", strerror(errno)); + printf("WDIOC_SETTIMEOUT error '%s'\n", strerror(errno)); break; default: usage(argv[0]); -- 2.20.1

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[PATCH AUTOSEL 4.19 117/237] selftests: watchdog: fix message when /dev/watchdog open fails

by Sasha Levin

From: "Shuah Khan (Samsung OSG)" <shuah(a)kernel.org> [ Upstream commit 9a244229a4b850b11952a0df79607c69b18fd8df ] When /dev/watchdog open fails, watchdog exits with "watchdog not enabled" message. This is incorrect when open fails due to insufficient privilege. Fix message to clearly state the reason when open fails with EACCESS when a non-root user runs it. Signed-off-by: Shuah Khan (Samsung OSG) <shuah(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/watchdog/watchdog-test.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c index 6e290874b70e2..e029e2017280f 100644 --- a/tools/testing/selftests/watchdog/watchdog-test.c +++ b/tools/testing/selftests/watchdog/watchdog-test.c @@ -89,7 +89,13 @@ int main(int argc, char *argv[]) fd = open("/dev/watchdog", O_WRONLY); if (fd == -1) { - printf("Watchdog device not enabled.\n"); + if (errno == ENOENT) + printf("Watchdog device not enabled.\n"); + else if (errno == EACCES) + printf("Run watchdog as root.\n"); + else + printf("Watchdog device open failed %s\n", + strerror(errno)); exit(-1); } -- 2.20.1

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[PATCH AUTOSEL 4.19 116/237] selftests/ftrace: Fix to test kprobe $comm arg only if available

by Sasha Levin

From: Masami Hiramatsu <mhiramat(a)kernel.org> [ Upstream commit 2452c96e617a0ff6fb2692e55217a3fa57a7322c ] Test $comm in kprobe-event argument syntax testcase only if it is supported on the kernel because $comm has been introduced 4.8 kernel. So on older stable kernel, it should be skipped. Signed-off-by: Masami Hiramatsu <mhiramat(a)kernel.org> Signed-off-by: Shuah Khan (Samsung OSG) <shuah(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- .../selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc index d026ff4e562f3..92ffb3bd33d82 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc @@ -78,8 +78,11 @@ test_badarg "\$stackp" "\$stack0+10" "\$stack1-10" echo "r ${PROBEFUNC} \$retval" > kprobe_events ! echo "p ${PROBEFUNC} \$retval" > kprobe_events +# $comm was introduced in 4.8, older kernels reject it. +if grep -A1 "fetcharg:" README | grep -q '\$comm' ; then : "Comm access" test_goodarg "\$comm" +fi : "Indirect memory access" test_goodarg "+0(${GOODREG})" "-0(${GOODREG})" "+10(\$stack)" \ -- 2.20.1

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[PATCH AUTOSEL 4.19 096/237] selftests/bpf: fix return value comparison for tests in test_libbpf.sh

by Sasha Levin

From: Quentin Monnet <quentin.monnet(a)netronome.com> [ Upstream commit c5fa5d602221362f8341ecd9e32d83194abf5bd9 ] The return value for each test in test_libbpf.sh is compared with if (( $? == 0 )) ; then ... This works well with bash, but not with dash, that /bin/sh is aliased to on some systems (such as Ubuntu). Let's replace this comparison by something that works on both shells. Signed-off-by: Quentin Monnet <quentin.monnet(a)netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski(a)netronome.com> Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/bpf/test_libbpf.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/test_libbpf.sh b/tools/testing/selftests/bpf/test_libbpf.sh index 8b1bc96d8e0cc..2989b2e2d856d 100755 --- a/tools/testing/selftests/bpf/test_libbpf.sh +++ b/tools/testing/selftests/bpf/test_libbpf.sh @@ -6,7 +6,7 @@ export TESTNAME=test_libbpf # Determine selftest success via shell exit code exit_handler() { - if (( $? == 0 )); then + if [ $? -eq 0 ]; then echo "selftests: $TESTNAME [PASS]"; else echo "$TESTNAME: failed at file $LAST_LOADED" 1>&2 -- 2.20.1

5 years, 10 months

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[PATCH AUTOSEL 4.19 081/237] selftests/bpf: fix file resource leak in load_kallsyms

by Sasha Levin

From: Peng Hao <peng.hao2(a)zte.com.cn> [ Upstream commit 1bd70d2eba9d90eb787634361f0f6fa2c86b3f6d ] FILE pointer variable f is opened but never closed. Signed-off-by: Peng Hao <peng.hao2(a)zte.com.cn> Signed-off-by: Daniel Borkmann <daniel(a)iogearbox.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/bpf/trace_helpers.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/bpf/trace_helpers.c b/tools/testing/selftests/bpf/trace_helpers.c index cf156b3536798..82922f13dcd3a 100644 --- a/tools/testing/selftests/bpf/trace_helpers.c +++ b/tools/testing/selftests/bpf/trace_helpers.c @@ -41,6 +41,7 @@ int load_kallsyms(void) syms[i].name = strdup(func); i++; } + fclose(f); sym_cnt = i; qsort(syms, sym_cnt, sizeof(struct ksym), ksym_cmp); return 0; -- 2.20.1

5 years, 10 months

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[PATCH linux-kselftest/test v2] Documentation: kunit: add documentation for kunit_tool

by Brendan Higgins

Add documentation for the Python script used to build, run, and collect results from the kernel known as kunit_tool. kunit_tool (tools/testing/kunit/kunit.py) was already added in previous commits. Signed-off-by: Brendan Higgins <brendanhiggins(a)google.com> --- Documentation/dev-tools/kunit/index.rst | 1 + Documentation/dev-tools/kunit/kunit-tool.rst | 57 ++++++++++++++++++++ Documentation/dev-tools/kunit/start.rst | 5 +- 3 files changed, 62 insertions(+), 1 deletion(-) create mode 100644 Documentation/dev-tools/kunit/kunit-tool.rst diff --git a/Documentation/dev-tools/kunit/index.rst b/Documentation/dev-tools/kunit/index.rst index 26ffb46bdf99d..c60d760a0eed1 100644 --- a/Documentation/dev-tools/kunit/index.rst +++ b/Documentation/dev-tools/kunit/index.rst @@ -9,6 +9,7 @@ KUnit - Unit Testing for the Linux Kernel start usage + kunit-tool api/index faq diff --git a/Documentation/dev-tools/kunit/kunit-tool.rst b/Documentation/dev-tools/kunit/kunit-tool.rst new file mode 100644 index 0000000000000..37509527c04e1 --- /dev/null +++ b/Documentation/dev-tools/kunit/kunit-tool.rst @@ -0,0 +1,57 @@ +.. SPDX-License-Identifier: GPL-2.0 + +================= +kunit_tool How-To +================= + +What is kunit_tool? +=================== + +kunit_tool is a script (``tools/testing/kunit/kunit.py``) that aids in building +the Linux kernel as UML (`User Mode Linux +<http://user-mode-linux.sourceforge.net/>`_), running KUnit tests, parsing +the test results and displaying them in a user friendly manner. + +What is a kunitconfig? +====================== + +It's just a defconfig that kunit_tool looks for in the base directory. +kunit_tool uses it to generate a .config as you might expect. In addition, it +verifies that the generated .config contains the CONFIG options in the +kunitconfig; the reason it does this is so that it is easy to be sure that a +CONFIG that enables a test actually ends up in the .config. + +How do I use kunit_tool? +================================= + +If a kunitconfig is present at the root directory, all you have to do is: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run + +However, you most likely want to use it with the following options: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all` + +- ``--timeout`` sets a maximum amount of time to allow tests to run. +- ``--jobs`` sets the number of threads to use to build the kernel. + +If you just want to use the defconfig that ships with the kernel, you can +append the ``--defconfig`` flag as well: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all` --defconfig + +.. note:: + This command is particularly helpful for getting started because it + just works. No kunitconfig needs to be present. + +For a list of all the flags supported by kunit_tool, you can run: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --help diff --git a/Documentation/dev-tools/kunit/start.rst b/Documentation/dev-tools/kunit/start.rst index aeeddfafeea20..4248a6f9038b8 100644 --- a/Documentation/dev-tools/kunit/start.rst +++ b/Documentation/dev-tools/kunit/start.rst @@ -19,7 +19,10 @@ The wrapper can be run with: .. code-block:: bash - ./tools/testing/kunit/kunit.py run + ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all` --defconfig + +For more information on this wrapper (also called kunit_tool) checkout the +:doc:`kunit-tool` page. Creating a kunitconfig ====================== -- 2.24.0.432.g9d3f5f5b63-goog

5 years, 10 months

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[PATCH v4] selftests: fix prepending $(OUTPUT) to $(TEST_PROGS)

by Ilya Leoshkevich

Currently the following command produces an error message: linux# make kselftest TARGETS=bpf O=/mnt/linux-build # selftests: bpf: test_libbpf.sh # ./test_libbpf.sh: line 23: ./test_libbpf_open: No such file or directory # test_libbpf: failed at file test_l4lb.o # selftests: test_libbpf [FAILED] The error message might not affect make return code, therefore one might need to grep make output in order to detect it. The current logic prepends $(OUTPUT) only to the first member of $(TEST_PROGS). After that, run_one() does cd `dirname $TEST` For all tests except the first one, `dirname $TEST` is ., which means they cannot access the files generated in $(OUTPUT). Fix by using $(addprefix) to prepend $(OUTPUT)/ to each member of $(TEST_PROGS). Fixes: 1a940687e424 ("selftests: lib.mk: copy test scripts and test files for make O=dir run") Signed-off-by: Ilya Leoshkevich <iii(a)linux.ibm.com> --- v1->v2: - Append / to $(OUTPUT). - Use $(addprefix) instead of $(foreach). v2->v3: - Split the patch in two. - Improve the commit message. v3->v4: - Drop the first patch. - Add a note regarding make return code to the commit message. tools/testing/selftests/lib.mk | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk index 1c8a1963d03f..0cf510df1ee2 100644 --- a/tools/testing/selftests/lib.mk +++ b/tools/testing/selftests/lib.mk @@ -75,7 +75,8 @@ ifdef building_out_of_srctree @rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT) fi @if [ "X$(TEST_PROGS)" != "X" ]; then - $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(OUTPUT)/$(TEST_PROGS)) + $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \ + $(addprefix $(OUTPUT)/,$(TEST_PROGS))) else $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)) fi -- 2.23.0

5 years, 10 months

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next-20191115 kselftest results

by ci_notify＠linaro.org

Summary ------------------------------------------------------------------------ kernel: 5.4.0-rc7 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git branch: master git commit: 5a6fcbeabe3e20459ed8504690b2515dacc5246f git describe: next-20191115 Test details: https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20191115 Regressions (compared to build next-20191114) ------------------------------------------------------------------------ x86: kselftest: * net_fib-onlink-tests.sh * x86_iopl_64 kselftest-vsyscall-mode-native: * net_fib-onlink-tests.sh * x86_fsgsbase_64 * x86_iopl_64 kselftest-vsyscall-mode-none: * x86_iopl_64 x86: kselftest: * net_fib-onlink-tests.sh * x86_iopl_64 kselftest-vsyscall-mode-native: * net_fib-onlink-tests.sh * x86_fsgsbase_64 * x86_iopl_64 kselftest-vsyscall-mode-none: * x86_iopl_64 x86: kselftest: * net_fib-onlink-tests.sh * x86_iopl_64 kselftest-vsyscall-mode-native: * net_fib-onlink-tests.sh * x86_fsgsbase_64 * x86_iopl_64 kselftest-vsyscall-mode-none: * x86_iopl_64 qemu_x86_64: kselftest: * x86_iopl_64 Fixes (compared to build next-20191114) ------------------------------------------------------------------------ x86: kselftest-vsyscall-mode-none: * net_so_txtime.sh qemu_arm: kselftest: * cgroup_test_freezer * epoll_epoll_wakeup_test In total: ------------------------------------------------------------------------ Ran 1170 total tests in the following environments and test suites. pass 607 fail 483 xfail 0 skip 80 Environments -------------- - dragonboard-410c - arm64 - hi6220-hikey - arm64 - i386 - juno-r2 - arm64 - qemu_arm - qemu_arm64 - qemu_i386 - qemu_x86_64 - x15 - arm - x86_64 Test Suites ----------- * kselftest * kselftest-vsyscall-mode-native * kselftest-vsyscall-mode-none Failures ------------------------------------------------------------------------ dragonboard-410c: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_duplicated_fpsimd * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lpm_map * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_xdping x86: * kselftest-vsyscall-mode-none/bpf_get_cgroup_id_user * kselftest-vsyscall-mode-none/bpf_test_bpftool_build.sh * kselftest-vsyscall-mode-none/bpf_test_dev_cgroup * kselftest-vsyscall-mode-none/bpf_test_flow_dissector.sh * kselftest-vsyscall-mode-none/bpf_test_lwt_ip_encap.sh * kselftest-vsyscall-mode-none/bpf_test_lwt_seg6local.sh * kselftest-vsyscall-mode-none/bpf_test_maps * kselftest-vsyscall-mode-none/bpf_test_netcnt * kselftest-vsyscall-mode-none/bpf_test_progs * kselftest-vsyscall-mode-none/bpf_test_progs-no_alu32 * kselftest-vsyscall-mode-none/bpf_test_select_reuseport * kselftest-vsyscall-mode-none/bpf_test_skb_cgroup_id.sh * kselftest-vsyscall-mode-none/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-none/bpf_test_socket_cookie * kselftest-vsyscall-mode-none/bpf_test_sock_fields * kselftest-vsyscall-mode-none/bpf_test_sockmap * kselftest-vsyscall-mode-none/bpf_test_sysctl * kselftest-vsyscall-mode-none/bpf_test_tc_edt.sh * kselftest-vsyscall-mode-none/bpf_test_tcpbpf_user * kselftest-vsyscall-mode-none/bpf_test_tcp_check_syncookie.sh * kselftest-vsyscall-mode-none/bpf_test_tcpnotify_user * kselftest-vsyscall-mode-none/bpf_test_tc_tunnel.sh * kselftest-vsyscall-mode-none/bpf_test_tunnel.sh * kselftest-vsyscall-mode-none/bpf_test_xdping.sh * kselftest-vsyscall-mode-none/bpf_test_xdp_meta.sh * kselftest-vsyscall-mode-none/bpf_test_xdp_redirect.sh * kselftest-vsyscall-mode-none/bpf_test_xdp_vlan_mode_generic.sh * kselftest-vsyscall-mode-none/bpf_test_xdp_vlan_mode_native.sh * kselftest-vsyscall-mode-none/bpf_xdping * kselftest-vsyscall-mode-none/firmware_fw_run_tests.sh * kselftest-vsyscall-mode-none/intel_pstate_run.sh * kselftest-vsyscall-mode-none/kvm_clear_dirty_log_test * kselftest-vsyscall-mode-none/kvm_cr4_cpuid_sync_test * kselftest-vsyscall-mode-none/kvm_dirty_log_test * kselftest-vsyscall-mode-none/kvm_evmcs_test * kselftest-vsyscall-mode-none/kvm_hyperv_cpuid * kselftest-vsyscall-mode-none/kvm_kvm_create_max_vcpus * kselftest-vsyscall-mode-none/kvm_platform_info_test * kselftest-vsyscall-mode-none/kvm_set_sregs_test * kselftest-vsyscall-mode-none/kvm_smm_test * kselftest-vsyscall-mode-none/kvm_state_test * kselftest-vsyscall-mode-none/kvm_sync_regs_test * kselftest-vsyscall-mode-none/kvm_vmx_close_while_nested_test * kselftest-vsyscall-mode-none/kvm_vmx_dirty_log_test * kselftest-vsyscall-mode-none/kvm_vmx_set_nested_state_test * kselftest-vsyscall-mode-none/kvm_vmx_tsc_adjust_test * kselftest-vsyscall-mode-none/mqueue_mq_perf_tests * kselftest-vsyscall-mode-none/net_fib-onlink-tests.sh * kselftest-vsyscall-mode-none/net_fib_tests.sh * kselftest-vsyscall-mode-none/net_ip_defrag.sh * kselftest-vsyscall-mode-none/net_l2tp.sh * kselftest-vsyscall-mode-none/net_pmtu.sh * kselftest-vsyscall-mode-none/net_psock_snd.sh * kselftest-vsyscall-mode-none/net_run_netsocktests * kselftest-vsyscall-mode-none/net_test_vxlan_under_vrf.sh * kselftest-vsyscall-mode-none/net_traceroute.sh * kselftest-vsyscall-mode-none/net_udpgro_bench.sh * kselftest-vsyscall-mode-none/net_udpgro.sh * kselftest-vsyscall-mode-none/net_udpgso_bench.sh * kselftest-vsyscall-mode-none/net_xfrm_policy.sh * kselftest-vsyscall-mode-none/pidfd_pidfd_open_test * kselftest-vsyscall-mode-none/pidfd_pidfd_poll_test * kselftest-vsyscall-mode-none/pstore_pstore_tests * kselftest-vsyscall-mode-none/rseq_run_param_test.sh * kselftest-vsyscall-mode-none/rtc_rtctest * kselftest-vsyscall-mode-none/seccomp_seccomp_benchmark * kselftest-vsyscall-mode-none/timers_set-timer-lat * kselftest-vsyscall-mode-none/timestamping_txtimestamp.sh * kselftest-vsyscall-mode-none/tpm2_test_smoke.sh * kselftest-vsyscall-mode-none/tpm2_test_space.sh * kselftest-vsyscall-mode-none/vm_run_vmtests * kselftest-vsyscall-mode-none/x86_iopl_64 * kselftest/bpf_get_cgroup_id_user * kselftest-vsyscall-mode-native/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest-vsyscall-mode-native/bpf_test_bpftool_build.sh * kselftest-vsyscall-mode-native/bpf_test_dev_cgroup * kselftest/bpf_test_dev_cgroup * kselftest-vsyscall-mode-native/bpf_test_flow_dissector.sh * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_lwt_ip_encap.sh * kselftest-vsyscall-mode-native/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest-vsyscall-mode-native/bpf_test_lwt_seg6local.sh * kselftest-vsyscall-mode-native/bpf_test_maps * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest-vsyscall-mode-native/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest-vsyscall-mode-native/bpf_test_progs * kselftest-vsyscall-mode-native/bpf_test_progs-no_alu32 * kselftest/bpf_test_progs-no_alu32 * kselftest-vsyscall-mode-native/bpf_test_select_reuseport * kselftest/bpf_test_select_reuseport * kselftest-vsyscall-mode-native/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-native/bpf_test_sock_addr.sh * kselftest-vsyscall-mode-native/bpf_test_socket_cookie * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest-vsyscall-mode-native/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest-vsyscall-mode-native/bpf_test_sockmap * kselftest-vsyscall-mode-native/bpf_test_sysctl * kselftest/bpf_test_sysctl * kselftest/bpf_test_tc_edt.sh * kselftest-vsyscall-mode-native/bpf_test_tc_edt.sh * kselftest-vsyscall-mode-native/bpf_test_tcpbpf_user * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest-vsyscall-mode-native/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest-vsyscall-mode-native/bpf_test_tcpnotify_user * kselftest-vsyscall-mode-native/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest-vsyscall-mode-native/bpf_test_tunnel.sh * kselftest-vsyscall-mode-native/bpf_test_xdping.sh * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest-vsyscall-mode-native/bpf_test_xdp_meta.sh * kselftest-vsyscall-mode-native/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest-vsyscall-mode-native/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest-vsyscall-mode-native/bpf_test_xdp_vlan_mode_native.sh * kselftest-vsyscall-mode-native/bpf_xdping * kselftest-vsyscall-mode-native/firmware_fw_run_tests.sh * kselftest/firmware_fw_run_tests.sh * kselftest/intel_pstate_run.sh * kselftest-vsyscall-mode-native/intel_pstate_run.sh * kselftest/kvm_clear_dirty_log_test * kselftest-vsyscall-mode-native/kvm_clear_dirty_log_test * kselftest-vsyscall-mode-native/kvm_cr4_cpuid_sync_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest-vsyscall-mode-native/kvm_dirty_log_test * kselftest-vsyscall-mode-native/kvm_evmcs_test * kselftest/kvm_evmcs_test * kselftest/kvm_kvm_create_max_vcpus * kselftest-vsyscall-mode-native/kvm_kvm_create_max_vcpus * kselftest/kvm_platform_info_test * kselftest-vsyscall-mode-native/kvm_platform_info_test * kselftest-vsyscall-mode-native/kvm_set_sregs_test * kselftest/kvm_set_sregs_test * kselftest-vsyscall-mode-native/kvm_smm_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest-vsyscall-mode-native/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest-vsyscall-mode-native/kvm_sync_regs_test * kselftest/kvm_vmx_close_while_nested_test * kselftest-vsyscall-mode-native/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_dirty_log_test * kselftest-vsyscall-mode-native/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_set_nested_state_test * kselftest-vsyscall-mode-native/kvm_vmx_tsc_adjust_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest/mqueue_mq_perf_tests * kselftest-vsyscall-mode-native/mqueue_mq_perf_tests * kselftest/net_fib-onlink-tests.sh * kselftest-vsyscall-mode-native/net_fib-onlink-tests.sh * kselftest-vsyscall-mode-native/net_fib_tests.sh * kselftest/net_fib_tests.sh * kselftest/net_ip_defrag.sh * kselftest-vsyscall-mode-native/net_ip_defrag.sh * kselftest-vsyscall-mode-native/net_l2tp.sh * kselftest/net_l2tp.sh * kselftest-vsyscall-mode-native/net_pmtu.sh * kselftest/net_pmtu.sh * kselftest-vsyscall-mode-native/net_psock_snd.sh * kselftest/net_psock_snd.sh * kselftest-vsyscall-mode-native/net_run_netsocktests * kselftest/net_run_netsocktests * kselftest/net_test_vxlan_under_vrf.sh * kselftest-vsyscall-mode-native/net_test_vxlan_under_vrf.sh * kselftest/net_traceroute.sh * kselftest-vsyscall-mode-native/net_traceroute.sh * kselftest-vsyscall-mode-native/net_udpgro_bench.sh * kselftest/net_udpgro_bench.sh * kselftest-vsyscall-mode-native/net_udpgro.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest-vsyscall-mode-native/net_udpgso_bench.sh * kselftest/net_xfrm_policy.sh * kselftest-vsyscall-mode-native/net_xfrm_policy.sh * kselftest-vsyscall-mode-native/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest-vsyscall-mode-native/pidfd_pidfd_poll_test * kselftest-vsyscall-mode-native/pstore_pstore_tests * kselftest/pstore_pstore_tests * kselftest/rseq_run_param_test.sh * kselftest-vsyscall-mode-native/rseq_run_param_test.sh * kselftest/rtc_rtctest * kselftest-vsyscall-mode-native/rtc_rtctest * kselftest-vsyscall-mode-native/seccomp_seccomp_benchmark * kselftest/seccomp_seccomp_benchmark * kselftest/timers_set-timer-lat * kselftest-vsyscall-mode-native/timers_set-timer-lat * kselftest-vsyscall-mode-native/timestamping_txtimestamp.sh * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest-vsyscall-mode-native/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh * kselftest-vsyscall-mode-native/tpm2_test_space.sh * kselftest-vsyscall-mode-native/vm_run_vmtests * kselftest/vm_run_vmtests * kselftest-vsyscall-mode-native/x86_fsgsbase_64 * kselftest-vsyscall-mode-native/x86_iopl_64 * kselftest/x86_iopl_64 qemu_x86_64: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/bpf_xdping * kselftest/cpufreq_main.sh * kselftest/firmware_fw_run_tests.sh * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/mqueue_mq_perf_tests * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_tests.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_run_netsocktests * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_traceroute.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/net_xfrm_policy.sh * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pstore_pstore_tests * kselftest/rseq_run_param_test.sh * kselftest/rtc_rtctest * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh * kselftest/vm_run_vmtests * kselftest/x86_fsgsbase_64 * kselftest/x86_iopl_64 x15: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_hashmap * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/bpf_xdping qemu_arm: * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_hashmap * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/bpf_xdping * kselftest/clone3_clone3_clear_sighand * kselftest/cpufreq_main.sh * kselftest/firmware_fw_run_tests.sh * kselftest/kvm_clear_dirty_log_test * kselftest/kvm_cr4_cpuid_sync_test * kselftest/kvm_dirty_log_test * kselftest/kvm_evmcs_test * kselftest/kvm_hyperv_cpuid * kselftest/kvm_kvm_create_max_vcpus * kselftest/kvm_mmio_warning_test * kselftest/kvm_platform_info_test * kselftest/kvm_set_sregs_test * kselftest/kvm_smm_test * kselftest/kvm_state_test * kselftest/kvm_sync_regs_test * kselftest/kvm_vmx_close_while_nested_test * kselftest/kvm_vmx_dirty_log_test * kselftest/kvm_vmx_set_nested_state_test * kselftest/kvm_vmx_tsc_adjust_test * kselftest/lib_bitmap.sh * kselftest/net_fib-onlink-tests.sh * kselftest/net_fib_rule_tests.sh * kselftest/net_fib_tests.sh * kselftest/netfilter_conntrack_icmp_related.sh * kselftest/netfilter_nft_nat.sh * kselftest/net_ip_defrag.sh * kselftest/net_l2tp.sh * kselftest/net_pmtu.sh * kselftest/net_psock_snd.sh * kselftest/net_reuseport_bpf_numa * kselftest/net_run_netsocktests * kselftest/net_so_txtime.sh * kselftest/net_tcp_fastopen_backup_key.sh * kselftest/net_test_vxlan_under_vrf.sh * kselftest/net_udpgro_bench.sh * kselftest/net_udpgro.sh * kselftest/net_udpgso_bench.sh * kselftest/pidfd_pidfd_open_test * kselftest/pidfd_pidfd_poll_test * kselftest/pidfd_pidfd_test * kselftest/proc_proc-self-syscall * kselftest/pstore_pstore_tests * kselftest/rseq_basic_percpu_ops_test * kselftest/rtc_rtctest * kselftest/timers_set-timer-lat * kselftest/timestamping_txtimestamp.sh * kselftest/tpm2_test_smoke.sh * kselftest/tpm2_test_space.sh i386: qemu_i386: qemu_arm64: * kselftest/arm64_fake_sigreturn_bad_magic * kselftest/arm64_fake_sigreturn_bad_size * kselftest/arm64_fake_sigreturn_bad_size_for_magic0 * kselftest/arm64_fake_sigreturn_duplicated_fpsimd * kselftest/arm64_fake_sigreturn_misaligned_sp * kselftest/arm64_fake_sigreturn_missing_fpsimd * kselftest/arm64_mangle_pstate_invalid_compat_toggle * kselftest/arm64_mangle_pstate_invalid_daif_bits * kselftest/arm64_mangle_pstate_invalid_mode_el1h * kselftest/arm64_mangle_pstate_invalid_mode_el1t * kselftest/arm64_mangle_pstate_invalid_mode_el2h * kselftest/arm64_mangle_pstate_invalid_mode_el2t * kselftest/arm64_mangle_pstate_invalid_mode_el3h * kselftest/arm64_mangle_pstate_invalid_mode_el3t * kselftest/bpf_get_cgroup_id_user * kselftest/bpf_test_bpftool_build.sh * kselftest/bpf_test_dev_cgroup * kselftest/bpf_test_flow_dissector.sh * kselftest/bpf_test_kmod.sh * kselftest/bpf_test_lpm_map * kselftest/bpf_test_lwt_ip_encap.sh * kselftest/bpf_test_lwt_seg6local.sh * kselftest/bpf_test_maps * kselftest/bpf_test_netcnt * kselftest/bpf_test_progs * kselftest/bpf_test_progs-no_alu32 * kselftest/bpf_test_select_reuseport * kselftest/bpf_test_skb_cgroup_id.sh * kselftest/bpf_test_sock_addr.sh * kselftest/bpf_test_socket_cookie * kselftest/bpf_test_sock_fields * kselftest/bpf_test_sockmap * kselftest/bpf_test_sysctl * kselftest/bpf_test_tag * kselftest/bpf_test_tc_edt.sh * kselftest/bpf_test_tcpbpf_user * kselftest/bpf_test_tcp_check_syncookie.sh * kselftest/bpf_test_tcpnotify_user * kselftest/bpf_test_tc_tunnel.sh * kselftest/bpf_test_tunnel.sh * kselftest/bpf_test_verifier * kselftest/bpf_test_xdping.sh * kselftest/bpf_test_xdp_meta.sh * kselftest/bpf_test_xdp_redirect.sh * kselftest/bpf_test_xdp_vlan_mode_generic.sh * kselftest/bpf_test_xdp_vlan_mode_native.sh * kselftest/bpf_xdping * kselftest/clone3_clone3 * kselftest/clone3_clone3_clear_sighand * kselftest/clone3_clone3_set_tid * kselftest/cpufreq_main.sh Skips ------------------------------------------------------------------------ No skips -- Linaro LKFT https://lkft.linaro.org

5 years, 10 months

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[PATCH][next] ftrace/selftests: fix spelling mistake "wakeing" -> "waking"

by Colin King

From: Colin Ian King <colin.king(a)canonical.com> There are a few identical spelling mistakes, fix these. Signed-off-by: Colin Ian King <colin.king(a)canonical.com> --- tools/testing/selftests/ftrace/test.d/direct/ftrace-direct.tc | 2 +- tools/testing/selftests/ftrace/test.d/direct/kprobe-direct.tc | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/ftrace/test.d/direct/ftrace-direct.tc b/tools/testing/selftests/ftrace/test.d/direct/ftrace-direct.tc index cbc7a30c2e0f..d75a8695bc21 100644 --- a/tools/testing/selftests/ftrace/test.d/direct/ftrace-direct.tc +++ b/tools/testing/selftests/ftrace/test.d/direct/ftrace-direct.tc @@ -11,7 +11,7 @@ fi echo "Let the module run a little" sleep 1 -grep -q "my_direct_func: wakeing up" trace +grep -q "my_direct_func: waking up" trace rmmod ftrace-direct diff --git a/tools/testing/selftests/ftrace/test.d/direct/kprobe-direct.tc b/tools/testing/selftests/ftrace/test.d/direct/kprobe-direct.tc index 017a7409b103..801ecb63e84c 100644 --- a/tools/testing/selftests/ftrace/test.d/direct/kprobe-direct.tc +++ b/tools/testing/selftests/ftrace/test.d/direct/kprobe-direct.tc @@ -16,7 +16,7 @@ fi echo "Let the module run a little" sleep 1 -grep -q "my_direct_func: wakeing up" trace +grep -q "my_direct_func: waking up" trace rmmod ftrace-direct @@ -26,7 +26,7 @@ start_direct() { echo > trace modprobe ftrace-direct sleep 1 - grep -q "my_direct_func: wakeing up" trace + grep -q "my_direct_func: waking up" trace } stop_direct() { -- 2.20.1

5 years, 10 months

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Investment opportunity

by Peter Wong

Greetings, Find attached email very confidential. reply for more details Thanks. Peter Wong ---------------------------------------------------- This email was sent by the shareware version of Postman Professional.

5 years, 10 months

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[PATCH linux-kselftest/test v1] Documentation: kunit: add documentation for kunit_tool

by Brendan Higgins

Add documentation for the Python script used to build, run, and collect results from the kernel known as kunit_tool. kunit_tool (tools/testing/kunit/kunit.py) was already added in previous commits. Signed-off-by: Brendan Higgins <brendanhiggins(a)google.com> --- Documentation/dev-tools/kunit/index.rst | 1 + Documentation/dev-tools/kunit/kunit-tool.rst | 57 ++++++++++++++++++++ Documentation/dev-tools/kunit/start.rst | 3 ++ 3 files changed, 61 insertions(+) create mode 100644 Documentation/dev-tools/kunit/kunit-tool.rst diff --git a/Documentation/dev-tools/kunit/index.rst b/Documentation/dev-tools/kunit/index.rst index 26ffb46bdf99d..c60d760a0eed1 100644 --- a/Documentation/dev-tools/kunit/index.rst +++ b/Documentation/dev-tools/kunit/index.rst @@ -9,6 +9,7 @@ KUnit - Unit Testing for the Linux Kernel start usage + kunit-tool api/index faq diff --git a/Documentation/dev-tools/kunit/kunit-tool.rst b/Documentation/dev-tools/kunit/kunit-tool.rst new file mode 100644 index 0000000000000..aa1a93649a45a --- /dev/null +++ b/Documentation/dev-tools/kunit/kunit-tool.rst @@ -0,0 +1,57 @@ +.. SPDX-License-Identifier: GPL-2.0 + +================= +kunit_tool How-To +================= + +What is kunit_tool? +=================== + +kunit_tool is a set of scripts that aid in building the Linux kernel as UML +(`User Mode Linux <http://user-mode-linux.sourceforge.net/old/>`_), running +KUnit tests, parsing the test results and displaying them in a user friendly +manner. + +What is a kunitconfig? +====================== + +It's just a defconfig that kunit_tool looks for in the base directory. +kunit_tool uses it to generate a .config as you might expect. In addition, it +verifies that the generated .config contains the CONFIG options in the +kunitconfig; the reason it does this is so that it is easy to be sure that a +CONFIG that enables a test actually ends up in the .config. + +How do I use kunit_tool? +================================= + +If a kunitconfig is present at the root directory, all you have to do is: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run + +However, you most likely want to use it with the following options: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=8 + +- ``--timeout`` sets a maximum amount of time to allow tests to run. +- ``--jobs`` sets the number of threads to use to build the kernel. + +If you just want to use the defconfig that ships with the kernel, you can +append the ``--defconfig`` flag as well: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=8 --defconfig + +.. note:: + This command is particularly helpful for getting started because it + just works. No kunitconfig needs to be present. + +For a list of all the flags supported by kunit_tool, you can run: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --help diff --git a/Documentation/dev-tools/kunit/start.rst b/Documentation/dev-tools/kunit/start.rst index aeeddfafeea20..1535c4394cfa2 100644 --- a/Documentation/dev-tools/kunit/start.rst +++ b/Documentation/dev-tools/kunit/start.rst @@ -21,6 +21,9 @@ The wrapper can be run with: ./tools/testing/kunit/kunit.py run +For more information on this wrapper (also called kunit_tool) checkout the +:doc:`kunit-tool` page. + Creating a kunitconfig ====================== The Python script is a thin wrapper around Kbuild as such, it needs to be -- 2.24.0.432.g9d3f5f5b63-goog

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