September 2020 - Linux-stable-mirror

+ mm-memory_hotplug-drain-per-cpu-pages-again-during-memory-offline.patch added to -mm tree

by akpm＠linux-foundation.org

The patch titled Subject: mm/memory_hotplug: drain per-cpu pages again during memory offline has been added to the -mm tree. Its filename is mm-memory_hotplug-drain-per-cpu-pages-again-during-memory-offline.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-memory_hotplug-drain-per-cpu-p… and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-memory_hotplug-drain-per-cpu-p… Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Pavel Tatashin <pasha.tatashin(a)soleen.com> Subject: mm/memory_hotplug: drain per-cpu pages again during memory offline There is a race during page offline that can lead to infinite loop: a page never ends up on a buddy list and __offline_pages() keeps retrying infinitely or until a termination signal is received. Thread#1 - a new process: load_elf_binary begin_new_exec exec_mmap mmput exit_mmap tlb_finish_mmu tlb_flush_mmu release_pages free_unref_page_list free_unref_page_prepare set_pcppage_migratetype(page, migratetype); // Set page->index migration type below MIGRATE_PCPTYPES Thread#2 - hot-removes memory __offline_pages start_isolate_page_range set_migratetype_isolate set_pageblock_migratetype(page, MIGRATE_ISOLATE); Set migration type to MIGRATE_ISOLATE-> set drain_all_pages(zone); // drain per-cpu page lists to buddy allocator. Thread#1 - continue free_unref_page_commit migratetype = get_pcppage_migratetype(page); // get old migration type list_add(&page->lru, &pcp->lists[migratetype]); // add new page to already drained pcp list Thread#2 Never drains pcp again, and therefore gets stuck in the loop. The fix is to try to drain per-cpu lists again after check_pages_isolated_cb() fails. Link: https://lkml.kernel.org/r/20200903140032.380431-1-pasha.tatashin@soleen.com Fixes: c52e75935f8d ("mm: remove extra drain pages on pcp list") Signed-off-by: Pavel Tatashin <pasha.tatashin(a)soleen.com> Acked-by: David Rientjes <rientjes(a)google.com> Acked-by: Vlastimil Babka <vbabka(a)suse.cz> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Oscar Salvador <osalvador(a)suse.de> Cc: Wei Yang <richard.weiyang(a)gmail.com> Cc: David Hildenbrand <david(a)redhat.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/memory_hotplug.c | 14 ++++++++++++++ mm/page_isolation.c | 8 ++++++++ 2 files changed, 22 insertions(+) --- a/mm/memory_hotplug.c~mm-memory_hotplug-drain-per-cpu-pages-again-during-memory-offline +++ a/mm/memory_hotplug.c @@ -1575,6 +1575,20 @@ static int __ref __offline_pages(unsigne /* check again */ ret = walk_system_ram_range(start_pfn, end_pfn - start_pfn, NULL, check_pages_isolated_cb); + /* + * per-cpu pages are drained in start_isolate_page_range, but if + * there are still pages that are not free, make sure that we + * drain again, because when we isolated range we might + * have raced with another thread that was adding pages to pcp + * list. + * + * Forward progress should be still guaranteed because + * pages on the pcp list can only belong to MOVABLE_ZONE + * because has_unmovable_pages explicitly checks for + * PageBuddy on freed pages on other zones. + */ + if (ret) + drain_all_pages(zone); } while (ret); /* Ok, all of our target is isolated. --- a/mm/page_isolation.c~mm-memory_hotplug-drain-per-cpu-pages-again-during-memory-offline +++ a/mm/page_isolation.c @@ -170,6 +170,14 @@ __first_valid_page(unsigned long pfn, un * pageblocks we may have modified and return -EBUSY to caller. This * prevents two threads from simultaneously working on overlapping ranges. * + * Please note that there is no strong synchronization with the page allocator + * either. Pages might be freed while their page blocks are marked ISOLATED. + * In some cases pages might still end up on pcp lists and that would allow + * for their allocation even when they are in fact isolated already. Depending + * on how strong of a guarantee the caller needs drain_all_pages might be needed + * (e.g. __offline_pages will need to call it after check for isolated range for + * a next retry). + * * Return: the number of isolated pageblocks on success and -EBUSY if any part * of range cannot be isolated. */ _ Patches currently in -mm which might be from pasha.tatashin(a)soleen.com are mm-memory_hotplug-drain-per-cpu-pages-again-during-memory-offline.patch

3 years, 8 months

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+ mm-thp-fix-__split_huge_pmd_locked-for-migration-pmd.patch added to -mm tree

by akpm＠linux-foundation.org

The patch titled Subject: mm/thp: fix __split_huge_pmd_locked() for migration PMD has been added to the -mm tree. Its filename is mm-thp-fix-__split_huge_pmd_locked-for-migration-pmd.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-thp-fix-__split_huge_pmd_locke… and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-thp-fix-__split_huge_pmd_locke… Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Ralph Campbell <rcampbell(a)nvidia.com> Subject: mm/thp: fix __split_huge_pmd_locked() for migration PMD A migrating transparent huge page has to already be unmapped. Otherwise, the page could be modified while it is being copied to a new page and data could be lost. The function __split_huge_pmd() checks for a PMD migration entry before calling __split_huge_pmd_locked() leading one to think that __split_huge_pmd_locked() can handle splitting a migrating PMD. However, the code always increments the page->_mapcount and adjusts the memory control group accounting assuming the page is mapped. Also, if the PMD entry is a migration PMD entry, the call to is_huge_zero_pmd(*pmd) is incorrect because it calls pmd_pfn(pmd) instead of migration_entry_to_pfn(pmd_to_swp_entry(pmd)). Fix these problems by checking for a PMD migration entry. Link: https://lkml.kernel.org/r/20200903183140.19055-1-rcampbell@nvidia.com Fixes: 84c3fc4e9c56 ("mm: thp: check pmd migration entry in common path") Signed-off-by: Ralph Campbell <rcampbell(a)nvidia.com> Reviewed-by: Yang Shi <shy828301(a)gmail.com> Reviewed-by: Zi Yan <ziy(a)nvidia.com> Cc: Jerome Glisse <jglisse(a)redhat.com> Cc: John Hubbard <jhubbard(a)nvidia.com> Cc: Alistair Popple <apopple(a)nvidia.com> Cc: Christoph Hellwig <hch(a)lst.de> Cc: Jason Gunthorpe <jgg(a)nvidia.com> Cc: Bharata B Rao <bharata(a)linux.ibm.com> Cc: Ben Skeggs <bskeggs(a)redhat.com> Cc: Shuah Khan <shuah(a)kernel.org> Cc: <stable(a)vger.kernel.org> [4.14+] Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/huge_memory.c | 42 +++++++++++++++++++++++------------------- 1 file changed, 23 insertions(+), 19 deletions(-) --- a/mm/huge_memory.c~mm-thp-fix-__split_huge_pmd_locked-for-migration-pmd +++ a/mm/huge_memory.c @@ -2021,7 +2021,7 @@ static void __split_huge_pmd_locked(stru put_page(page); add_mm_counter(mm, mm_counter_file(page), -HPAGE_PMD_NR); return; - } else if (is_huge_zero_pmd(*pmd)) { + } else if (pmd_trans_huge(*pmd) && is_huge_zero_pmd(*pmd)) { /* * FIXME: Do we want to invalidate secondary mmu by calling * mmu_notifier_invalidate_range() see comments below inside @@ -2115,30 +2115,34 @@ static void __split_huge_pmd_locked(stru pte = pte_offset_map(&_pmd, addr); BUG_ON(!pte_none(*pte)); set_pte_at(mm, addr, pte, entry); - atomic_inc(&page[i]._mapcount); - pte_unmap(pte); - } - - /* - * Set PG_double_map before dropping compound_mapcount to avoid - * false-negative page_mapped(). - */ - if (compound_mapcount(page) > 1 && !TestSetPageDoubleMap(page)) { - for (i = 0; i < HPAGE_PMD_NR; i++) + if (!pmd_migration) atomic_inc(&page[i]._mapcount); + pte_unmap(pte); } - lock_page_memcg(page); - if (atomic_add_negative(-1, compound_mapcount_ptr(page))) { - /* Last compound_mapcount is gone. */ - __dec_lruvec_page_state(page, NR_ANON_THPS); - if (TestClearPageDoubleMap(page)) { - /* No need in mapcount reference anymore */ + if (!pmd_migration) { + /* + * Set PG_double_map before dropping compound_mapcount to avoid + * false-negative page_mapped(). + */ + if (compound_mapcount(page) > 1 && + !TestSetPageDoubleMap(page)) { for (i = 0; i < HPAGE_PMD_NR; i++) - atomic_dec(&page[i]._mapcount); + atomic_inc(&page[i]._mapcount); + } + + lock_page_memcg(page); + if (atomic_add_negative(-1, compound_mapcount_ptr(page))) { + /* Last compound_mapcount is gone. */ + __dec_lruvec_page_state(page, NR_ANON_THPS); + if (TestClearPageDoubleMap(page)) { + /* No need in mapcount reference anymore */ + for (i = 0; i < HPAGE_PMD_NR; i++) + atomic_dec(&page[i]._mapcount); + } } + unlock_page_memcg(page); } - unlock_page_memcg(page); smp_wmb(); /* make pte visible before pmd */ pmd_populate(mm, pmd, pgtable); _ Patches currently in -mm which might be from rcampbell(a)nvidia.com are mm-thp-fix-__split_huge_pmd_locked-for-migration-pmd.patch mm-test-use-the-new-skip-macro.patch mm-migrate-remove-cpages-in-migrate_vma_finalize.patch mm-migrate-remove-obsolete-comment-about-device-public.patch

3 years, 8 months

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[PATCH] perf record/stat: Explicitly call out event modifiers in the documentation

by Kim Phillips

Event modifiers are not mentioned in the perf record or perf stat manpages. Add them to orient new users more effectively by pointing them to the perf list manpage for details. Signed-off-by: Kim Phillips <kim.phillips(a)amd.com> Fixes: 2055fdaf8703 ("perf list: Document precise event sampling for AMD IBS") Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Ingo Molnar <mingo(a)redhat.com> Cc: Arnaldo Carvalho de Melo <acme(a)kernel.org> Cc: Mark Rutland <mark.rutland(a)arm.com> Cc: Alexander Shishkin <alexander.shishkin(a)linux.intel.com> Cc: Jiri Olsa <jolsa(a)redhat.com> Cc: Namhyung Kim <namhyung(a)kernel.org> Cc: Adrian Hunter <adrian.hunter(a)intel.com> Cc: Stephane Eranian <eranian(a)google.com> Cc: Alexey Budankov <alexey.budankov(a)linux.intel.com> Cc: Tony Jones <tonyj(a)suse.de> Cc: Jin Yao <yao.jin(a)linux.intel.com> Cc: Ian Rogers <irogers(a)google.com> Cc: "Paul A. Clarke" <pc(a)us.ibm.com> Cc: linux-perf-users(a)vger.kernel.org Cc: linux-kernel(a)vger.kernel.org Cc: stable(a)vger.kernel.org --- tools/perf/Documentation/perf-record.txt | 4 ++++ tools/perf/Documentation/perf-stat.txt | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 3f72d8e261f3..bd50cdff08a8 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -33,6 +33,10 @@ OPTIONS - a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a hexadecimal event descriptor. + - a symbolic or raw PMU event followed by an optional colon + and a list of event modifiers, e.g., cpu-cycles:p. See the + linkperf:perf-list[1] man page for details on event modifiers. + - a symbolically formed PMU event like 'pmu/param1=0x3,param2/' where 'param1', 'param2', etc are defined as formats for the PMU in /sys/bus/event_source/devices/<pmu>/format/*. diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt index c9bfefc051fb..a4b1d11fefc8 100644 --- a/tools/perf/Documentation/perf-stat.txt +++ b/tools/perf/Documentation/perf-stat.txt @@ -39,6 +39,10 @@ report:: - a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a hexadecimal event descriptor. + - a symbolic or raw PMU event followed by an optional colon + and a list of event modifiers, e.g., cpu-cycles:p. See the + linkperf:perf-list[1] man page for details on event modifiers. + - a symbolically formed event like 'pmu/param1=0x3,param2/' where param1 and param2 are defined as formats for the PMU in /sys/bus/event_source/devices/<pmu>/format/* -- 2.27.0

3 years, 8 months

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Re: [PATCH v2 00/28] The new cgroup slab memory controller

by Pavel Tatashin

Guys, There is a convoluted deadlock that I just root caused, and that is fixed by this work (at least based on my code inspection it appears to be fixed); but the deadlock exists in older and stable kernels, and I am not sure whether to create a separate patch for it, or backport this whole thing. Thread #1: Hot-removes memory device_offline memory_subsys_offline offline_pages __offline_pages mem_hotplug_lock <- write access waits for Thread #3 refcnt for pfn 9e5113 to get to 1 so it can migrate it. Thread #2: ccs killer kthread css_killed_work_fn cgroup_mutex <- Grab this Mutex mem_cgroup_css_offline memcg_offline_kmem.part memcg_deactivate_kmem_caches get_online_mems mem_hotplug_lock <- waits for Thread#1 to get read access Thread #3: crashing userland program do_coredump elf_core_dump get_dump_page() -> get page with pfn#9e5113, and increment refcnt dump_emit __kernel_write __vfs_write new_sync_write pipe_write pipe_wait -> waits for Thread #4 systemd-coredump to read the pipe Thread #4: systemd-coredump ksys_read vfs_read __vfs_read seq_read proc_single_show proc_cgroup_show cgroup_mutex -> waits from Thread #2 for this lock. In Summary: Thread#1 waits for Thread#3 for refcnt, Thread#3 waits for Thread#4 to read pipe. Thread#4 waits for Thread#2 for cgroup_mutex lock; Thread#2 waits for Thread#1 for mem_hotplug_lock rwlock. This work appears to fix this deadlock because cgroup_mutex is not called anymore before mem_hotplug_lock (unless I am missing it), as it removes memcg_deactivate_kmem_caches. Thank you, Pasha On Wed, Jan 29, 2020 at 9:42 PM Roman Gushchin <guro(a)fb.com> wrote: > > On Thu, Jan 30, 2020 at 07:36:26AM +0530, Bharata B Rao wrote: > > On Mon, Jan 27, 2020 at 09:34:25AM -0800, Roman Gushchin wrote: > > > The existing cgroup slab memory controller is based on the idea of > > > replicating slab allocator internals for each memory cgroup. > > > This approach promises a low memory overhead (one pointer per page), > > > and isn't adding too much code on hot allocation and release paths. > > > But is has a very serious flaw: it leads to a low slab utilization. > > > > > > Using a drgn* script I've got an estimation of slab utilization on > > > a number of machines running different production workloads. In most > > > cases it was between 45% and 65%, and the best number I've seen was > > > around 85%. Turning kmem accounting off brings it to high 90s. Also > > > it brings back 30-50% of slab memory. It means that the real price > > > of the existing slab memory controller is way bigger than a pointer > > > per page. > > > > > > The real reason why the existing design leads to a low slab utilization > > > is simple: slab pages are used exclusively by one memory cgroup. > > > If there are only few allocations of certain size made by a cgroup, > > > or if some active objects (e.g. dentries) are left after the cgroup is > > > deleted, or the cgroup contains a single-threaded application which is > > > barely allocating any kernel objects, but does it every time on a new CPU: > > > in all these cases the resulting slab utilization is very low. > > > If kmem accounting is off, the kernel is able to use free space > > > on slab pages for other allocations. > > > > > > Arguably it wasn't an issue back to days when the kmem controller was > > > introduced and was an opt-in feature, which had to be turned on > > > individually for each memory cgroup. But now it's turned on by default > > > on both cgroup v1 and v2. And modern systemd-based systems tend to > > > create a large number of cgroups. > > > > > > This patchset provides a new implementation of the slab memory controller, > > > which aims to reach a much better slab utilization by sharing slab pages > > > between multiple memory cgroups. Below is the short description of the new > > > design (more details in commit messages). > > > > > > Accounting is performed per-object instead of per-page. Slab-related > > > vmstat counters are converted to bytes. Charging is performed on page-basis, > > > with rounding up and remembering leftovers. > > > > > > Memcg ownership data is stored in a per-slab-page vector: for each slab page > > > a vector of corresponding size is allocated. To keep slab memory reparenting > > > working, instead of saving a pointer to the memory cgroup directly an > > > intermediate object is used. It's simply a pointer to a memcg (which can be > > > easily changed to the parent) with a built-in reference counter. This scheme > > > allows to reparent all allocated objects without walking them over and > > > changing memcg pointer to the parent. > > > > > > Instead of creating an individual set of kmem_caches for each memory cgroup, > > > two global sets are used: the root set for non-accounted and root-cgroup > > > allocations and the second set for all other allocations. This allows to > > > simplify the lifetime management of individual kmem_caches: they are > > > destroyed with root counterparts. It allows to remove a good amount of code > > > and make things generally simpler. > > > > > > The patchset* has been tested on a number of different workloads in our > > > production. In all cases it saved significant amount of memory, measured > > > from high hundreds of MBs to single GBs per host. On average, the size > > > of slab memory has been reduced by 35-45%. > > > > Here are some numbers from multiple runs of sysbench and kernel compilation > > with this patchset on a 10 core POWER8 host: > > > > ========================================================================== > > Peak usage of memory.kmem.usage_in_bytes, memory.usage_in_bytes and > > meminfo:Slab for Sysbench oltp_read_write with mysqld running as part > > of a mem cgroup (Sampling every 5s) > > -------------------------------------------------------------------------- > > 5.5.0-rc7-mm1 +slab patch %reduction > > -------------------------------------------------------------------------- > > memory.kmem.usage_in_bytes 15859712 4456448 72 > > memory.usage_in_bytes 337510400 335806464 .5 > > Slab: (kB) 814336 607296 25 > > > > memory.kmem.usage_in_bytes 16187392 4653056 71 > > memory.usage_in_bytes 318832640 300154880 5 > > Slab: (kB) 789888 559744 29 > > -------------------------------------------------------------------------- > > > > > > Peak usage of memory.kmem.usage_in_bytes, memory.usage_in_bytes and > > meminfo:Slab for kernel compilation (make -s -j64) Compilation was > > done from bash that is in a memory cgroup. (Sampling every 5s) > > -------------------------------------------------------------------------- > > 5.5.0-rc7-mm1 +slab patch %reduction > > -------------------------------------------------------------------------- > > memory.kmem.usage_in_bytes 338493440 231931904 31 > > memory.usage_in_bytes 7368015872 6275923968 15 > > Slab: (kB) 1139072 785408 31 > > > > memory.kmem.usage_in_bytes 341835776 236453888 30 > > memory.usage_in_bytes 6540427264 6072893440 7 > > Slab: (kB) 1074304 761280 29 > > > > memory.kmem.usage_in_bytes 340525056 233570304 31 > > memory.usage_in_bytes 6406209536 6177357824 3 > > Slab: (kB) 1244288 739712 40 > > -------------------------------------------------------------------------- > > > > Slab consumption right after boot > > -------------------------------------------------------------------------- > > 5.5.0-rc7-mm1 +slab patch %reduction > > -------------------------------------------------------------------------- > > Slab: (kB) 821888 583424 29 > > ========================================================================== > > > > Summary: > > > > With sysbench and kernel compilation, memory.kmem.usage_in_bytes shows > > around 70% and 30% reduction consistently. > > > > Didn't see consistent reduction of memory.usage_in_bytes with sysbench and > > kernel compilation. > > > > Slab usage (from /proc/meminfo) shows consistent 30% reduction and the > > same is seen right after boot too. > > That's just perfect! > > memory.usage_in_bytes was most likely the same because the freed space > was taken by pagecache. > > Thank you very much for testing! > > Roman

3 years, 8 months

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✅ PASS: Test report for kernel 5.8.5-137f317.cki (stable-queue)

by CKI Project

Hello, We ran automated tests on a recent commit from this kernel tree: Kernel repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Commit: 137f3178a407 - ALSA: usb-audio: Update documentation comment for MS2109 quirk The results of these automated tests are provided below. Overall result: PASSED Merge: OK Compile: OK Tests: OK All kernel binaries, config files, and logs are available for download here: https://cki-artifacts.s3.us-east-2.amazonaws.com/index.html?prefix=dataware… Please reply to this email if you have any questions about the tests that we ran or if you have any suggestions on how to make future tests more effective. ,-. ,-. ( C ) ( K ) Continuous `-',-.`-' Kernel ( I ) Integration `-' ______________________________________________________________________________ Compile testing --------------- We compiled the kernel for 4 architectures: aarch64: make options: make -j30 INSTALL_MOD_STRIP=1 targz-pkg ppc64le: make options: make -j30 INSTALL_MOD_STRIP=1 targz-pkg s390x: make options: make -j30 INSTALL_MOD_STRIP=1 targz-pkg x86_64: make options: make -j30 INSTALL_MOD_STRIP=1 targz-pkg Hardware testing ---------------- We booted each kernel and ran the following tests: aarch64: Host 1: ✅ Boot test ✅ xfstests - ext4 ✅ xfstests - xfs ✅ selinux-policy: serge-testsuite ✅ storage: software RAID testing ✅ stress: stress-ng 🚧 ✅ xfstests - btrfs 🚧 ❌ IPMI driver test 🚧 ✅ IPMItool loop stress test 🚧 ✅ Storage blktests Host 2: ✅ Boot test ✅ ACPI table test ✅ ACPI enabled test ✅ Podman system integration test - as root ✅ Podman system integration test - as user ✅ LTP ✅ Loopdev Sanity ✅ Memory function: memfd_create ✅ AMTU (Abstract Machine Test Utility) ✅ Networking bridge: sanity ✅ Ethernet drivers sanity ✅ Networking socket: fuzz ✅ Networking: igmp conformance test ✅ Networking route: pmtu ✅ Networking route_func - local ✅ Networking route_func - forward ✅ Networking TCP: keepalive test ✅ Networking UDP: socket ✅ Networking tunnel: geneve basic test ✅ Networking tunnel: gre basic ✅ L2TP basic test ✅ Networking tunnel: vxlan basic ✅ Networking ipsec: basic netns - transport ✅ Networking ipsec: basic netns - tunnel ✅ Libkcapi AF_ALG test ✅ pciutils: update pci ids test ✅ ALSA PCM loopback test ✅ ALSA Control (mixer) Userspace Element test ✅ storage: SCSI VPD 🚧 ✅ CIFS Connectathon 🚧 ✅ POSIX pjd-fstest suites 🚧 ✅ jvm - jcstress tests 🚧 ✅ Memory function: kaslr 🚧 ✅ Networking firewall: basic netfilter test 🚧 ✅ audit: audit testsuite test 🚧 ✅ trace: ftrace/tracer 🚧 ✅ kdump - kexec_boot ppc64le: Host 1: ✅ Boot test ✅ xfstests - ext4 ✅ xfstests - xfs ✅ selinux-policy: serge-testsuite ✅ storage: software RAID testing 🚧 ✅ xfstests - btrfs 🚧 ✅ IPMI driver test 🚧 ✅ IPMItool loop stress test 🚧 ✅ Storage blktests Host 2: ✅ Boot test ✅ Podman system integration test - as root ✅ Podman system integration test - as user ✅ LTP ✅ Loopdev Sanity ✅ Memory function: memfd_create ✅ AMTU (Abstract Machine Test Utility) ✅ Networking bridge: sanity ✅ Ethernet drivers sanity ✅ Networking socket: fuzz ✅ Networking route: pmtu ✅ Networking route_func - local ✅ Networking route_func - forward ✅ Networking TCP: keepalive test ✅ Networking UDP: socket ✅ Networking tunnel: geneve basic test ✅ Networking tunnel: gre basic ✅ L2TP basic test ✅ Networking tunnel: vxlan basic ✅ Networking ipsec: basic netns - tunnel ✅ Libkcapi AF_ALG test ✅ pciutils: update pci ids test ✅ ALSA PCM loopback test ✅ ALSA Control (mixer) Userspace Element test 🚧 ✅ CIFS Connectathon 🚧 ✅ POSIX pjd-fstest suites 🚧 ✅ jvm - jcstress tests 🚧 ✅ Memory function: kaslr 🚧 ✅ Networking firewall: basic netfilter test 🚧 ✅ audit: audit testsuite test 🚧 ✅ trace: ftrace/tracer Host 3: ✅ Boot test 🚧 ✅ kdump - sysrq-c s390x: Host 1: ✅ Boot test ✅ selinux-policy: serge-testsuite ✅ stress: stress-ng 🚧 ✅ Storage blktests Host 2: ✅ Boot test ✅ Podman system integration test - as root ✅ Podman system integration test - as user ✅ LTP ✅ Loopdev Sanity ✅ Memory function: memfd_create ✅ AMTU (Abstract Machine Test Utility) ✅ Networking bridge: sanity ✅ Ethernet drivers sanity ✅ Networking route: pmtu ✅ Networking route_func - local ✅ Networking route_func - forward ✅ Networking TCP: keepalive test ✅ Networking UDP: socket ✅ Networking tunnel: geneve basic test ✅ Networking tunnel: gre basic ✅ L2TP basic test ✅ Networking tunnel: vxlan basic ✅ Networking ipsec: basic netns - transport ✅ Networking ipsec: basic netns - tunnel ✅ Libkcapi AF_ALG test 🚧 ✅ CIFS Connectathon 🚧 ✅ POSIX pjd-fstest suites 🚧 ✅ jvm - jcstress tests 🚧 ✅ Memory function: kaslr 🚧 ✅ Networking firewall: basic netfilter test 🚧 ✅ audit: audit testsuite test 🚧 ✅ trace: ftrace/tracer x86_64: Host 1: ✅ Boot test ✅ ACPI table test ✅ Podman system integration test - as root ✅ Podman system integration test - as user ✅ LTP ✅ Loopdev Sanity ✅ Memory function: memfd_create ✅ AMTU (Abstract Machine Test Utility) ✅ Networking bridge: sanity ✅ Ethernet drivers sanity ✅ Networking socket: fuzz ✅ Networking: igmp conformance test ✅ Networking route: pmtu ✅ Networking route_func - local ✅ Networking route_func - forward ✅ Networking TCP: keepalive test ✅ Networking UDP: socket ✅ Networking tunnel: geneve basic test ✅ Networking tunnel: gre basic ✅ L2TP basic test ✅ Networking tunnel: vxlan basic ✅ Networking ipsec: basic netns - transport ✅ Networking ipsec: basic netns - tunnel ✅ Libkcapi AF_ALG test ✅ pciutils: sanity smoke test ✅ pciutils: update pci ids test ✅ kernel-rt: rt_migrate_test ✅ kernel-rt: rteval ✅ kernel-rt: sched_deadline ✅ kernel-rt: smidetect ✅ ALSA PCM loopback test ✅ ALSA Control (mixer) Userspace Element test ✅ storage: SCSI VPD 🚧 ✅ CIFS Connectathon 🚧 ✅ POSIX pjd-fstest suites 🚧 ✅ jvm - jcstress tests 🚧 ❌ Memory function: kaslr 🚧 ✅ Networking firewall: basic netfilter test 🚧 ✅ audit: audit testsuite test 🚧 ✅ trace: ftrace/tracer 🚧 ✅ kdump - kexec_boot Host 2: ⚡ Internal infrastructure issues prevented one or more tests (marked with ⚡⚡⚡) from running on this architecture. This is not the fault of the kernel that was tested. ⚡⚡⚡ Boot test ⚡⚡⚡ xfstests - ext4 ⚡⚡⚡ xfstests - xfs ⚡⚡⚡ selinux-policy: serge-testsuite ⚡⚡⚡ storage: software RAID testing ⚡⚡⚡ stress: stress-ng 🚧 ⚡⚡⚡ CPU: Frequency Driver Test 🚧 ⚡⚡⚡ CPU: Idle Test 🚧 ⚡⚡⚡ xfstests - btrfs 🚧 ⚡⚡⚡ IOMMU boot test 🚧 ⚡⚡⚡ IPMI driver test 🚧 ⚡⚡⚡ IPMItool loop stress test 🚧 ⚡⚡⚡ power-management: cpupower/sanity test 🚧 ⚡⚡⚡ Storage blktests Host 3: ✅ Boot test 🚧 ✅ kdump - sysrq-c 🚧 ✅ kdump - file-load Host 4: ⚡ Internal infrastructure issues prevented one or more tests (marked with ⚡⚡⚡) from running on this architecture. This is not the fault of the kernel that was tested. ✅ Boot test ✅ xfstests - ext4 ✅ xfstests - xfs ✅ selinux-policy: serge-testsuite ✅ storage: software RAID testing ✅ stress: stress-ng 🚧 ✅ CPU: Frequency Driver Test 🚧 ✅ CPU: Idle Test 🚧 ✅ xfstests - btrfs 🚧 ⚡⚡⚡ IOMMU boot test 🚧 ⚡⚡⚡ IPMI driver test 🚧 ⚡⚡⚡ IPMItool loop stress test 🚧 ⚡⚡⚡ power-management: cpupower/sanity test 🚧 ⚡⚡⚡ Storage blktests Test sources: https://gitlab.com/cki-project/kernel-tests 💚 Pull requests are welcome for new tests or improvements to existing tests! Aborted tests ------------- Tests that didn't complete running successfully are marked with ⚡⚡⚡. If this was caused by an infrastructure issue, we try to mark that explicitly in the report. Waived tests ------------ If the test run included waived tests, they are marked with 🚧. Such tests are executed but their results are not taken into account. Tests are waived when their results are not reliable enough, e.g. when they're just introduced or are being fixed. Testing timeout --------------- We aim to provide a report within reasonable timeframe. Tests that haven't finished running yet are marked with ⏱.

3 years, 8 months

1
0
0 0

[PATCH 02/13] x86/debug: Allow a single level of #DB recursion

by Peter Zijlstra

From: Andy Lutomirski <luto(a)kernel.org> Trying to clear DR7 around a #DB from usermode malfunctions if we schedule when delivering SIGTRAP. Rather than trying to define a special no-recursion region, just allow a single level of recursion. We do the same thing for NMI, and it hasn't caused any problems yet. Fixes: 9f58fdde95c9 ("x86/db: Split out dr6/7 handling") Reported-by: Kyle Huey <me(a)kylehuey.com> Debugged-by: Josh Poimboeuf <jpoimboe(a)redhat.com> Signed-off-by: Andy Lutomirski <luto(a)kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz(a)infradead.org> Cc: stable(a)vger.kernel.org Link: https://lkml.kernel.org/r/8b9bd05f187231df008d48cf818a6a311cbd5c98.15978823… --- arch/x86/kernel/traps.c | 65 ++++++++++++++++++++++-------------------------- 1 file changed, 31 insertions(+), 34 deletions(-) --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -729,20 +729,9 @@ static bool is_sysenter_singlestep(struc #endif } -static __always_inline void debug_enter(unsigned long *dr6, unsigned long *dr7) +static __always_inline unsigned long debug_read_clear_dr6(void) { - /* - * Disable breakpoints during exception handling; recursive exceptions - * are exceedingly 'fun'. - * - * Since this function is NOKPROBE, and that also applies to - * HW_BREAKPOINT_X, we can't hit a breakpoint before this (XXX except a - * HW_BREAKPOINT_W on our stack) - * - * Entry text is excluded for HW_BP_X and cpu_entry_area, which - * includes the entry stack is excluded for everything. - */ - *dr7 = local_db_save(); + unsigned long dr6; /* * The Intel SDM says: @@ -755,15 +744,12 @@ static __always_inline void debug_enter( * * Keep it simple: clear DR6 immediately. */ - get_debugreg(*dr6, 6); + get_debugreg(dr6, 6); set_debugreg(0, 6); /* Filter out all the reserved bits which are preset to 1 */ - *dr6 &= ~DR6_RESERVED; -} + dr6 &= ~DR6_RESERVED; -static __always_inline void debug_exit(unsigned long dr7) -{ - local_db_restore(dr7); + return dr6; } /* @@ -863,6 +849,18 @@ static void handle_debug(struct pt_regs static __always_inline void exc_debug_kernel(struct pt_regs *regs, unsigned long dr6) { + /* + * Disable breakpoints during exception handling; recursive exceptions + * are exceedingly 'fun'. + * + * Since this function is NOKPROBE, and that also applies to + * HW_BREAKPOINT_X, we can't hit a breakpoint before this (XXX except a + * HW_BREAKPOINT_W on our stack) + * + * Entry text is excluded for HW_BP_X and cpu_entry_area, which + * includes the entry stack is excluded for everything. + */ + unsigned long dr7 = local_db_save(); bool irq_state = idtentry_enter_nmi(regs); instrumentation_begin(); @@ -883,6 +881,8 @@ static __always_inline void exc_debug_ke instrumentation_end(); idtentry_exit_nmi(regs, irq_state); + + local_db_restore(dr7); } static __always_inline void exc_debug_user(struct pt_regs *regs, @@ -894,6 +894,15 @@ static __always_inline void exc_debug_us */ WARN_ON_ONCE(!user_mode(regs)); + /* + * NB: We can't easily clear DR7 here because + * idtentry_exit_to_usermode() can invoke ptrace, schedule, access + * user memory, etc. This means that a recursive #DB is possible. If + * this happens, that #DB will hit exc_debug_kernel() and clear DR7. + * Since we're not on the IST stack right now, everything will be + * fine. + */ + irqentry_enter_from_user_mode(regs); instrumentation_begin(); @@ -907,36 +916,24 @@ static __always_inline void exc_debug_us /* IST stack entry */ DEFINE_IDTENTRY_DEBUG(exc_debug) { - unsigned long dr6, dr7; - - debug_enter(&dr6, &dr7); - exc_debug_kernel(regs, dr6); - debug_exit(dr7); + exc_debug_kernel(regs, debug_read_clear_dr6()); } /* User entry, runs on regular task stack */ DEFINE_IDTENTRY_DEBUG_USER(exc_debug) { - unsigned long dr6, dr7; - - debug_enter(&dr6, &dr7); - exc_debug_user(regs, dr6); - debug_exit(dr7); + exc_debug_user(regs, debug_read_clear_dr6()); } #else /* 32 bit does not have separate entry points. */ DEFINE_IDTENTRY_RAW(exc_debug) { - unsigned long dr6, dr7; - - debug_enter(&dr6, &dr7); + unsigned long dr6 = debug_read_clear_dr6(); if (user_mode(regs)) exc_debug_user(regs, dr6); else exc_debug_kernel(regs, dr6); - - debug_exit(dr7); } #endif

3 years, 8 months

3
2
0 0

[PATCH] x86/mm/32: Bring back vmalloc faulting on x86_32

by Joerg Roedel

From: Joerg Roedel <jroedel(a)suse.de> One can not simply remove vmalloc faulting on x86-32. Upstream commit: 7f0a002b5a21 ("x86/mm: remove vmalloc faulting") removed it on x86 alltogether because previously the arch_sync_kernel_mappings() interface was introduced. This interface added synchronization of vmalloc/ioremap page-table updates to all page-tables in the system at creation time and was thought to make vmalloc faulting obsolete. But that assumption was incredibly naive. It turned out that there is a race window between the time the vmalloc or ioremap code establishes a mapping and the time it synchronizes this change to other page-tables in the system. During this race window another CPU or thread can establish a vmalloc mapping which uses the same intermediate page-table entries (e.g. PMD or PUD) and does no synchronization in the end, because it found all necessary mappings already present in the kernel reference page-table. But when these intermediate page-table entries are not yet synchronized, the other CPU or thread will continue with a vmalloc address that is not yet mapped in the page-table it currently uses, causing an unhandled page fault and oops like below: BUG: unable to handle page fault for address: fe80c000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page *pde = 33183067 *pte = a8648163 Oops: 0002 [#1] SMP CPU: 1 PID: 13514 Comm: cve-2017-17053 Tainted: G 0-next-20200811 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), 4/01/2014 EIP: memcpy+0xf/0x20 Code: 68 d0 7d ee d6 e8 11 1c c7 ff 0f 31 31 c3 59 58 cc cc cc cc cc cc 55 89 e5 57 89 c7 56 89 d6 53 89 cb a5 89 d9 83 e1 03 74 02 f3 a4 5b 5e 5f 5d c3 90 55 89 e5 EAX: fe80c000 EBX: 00010000 ECX: 00004000 EDX: fbfbd000 ESI: fbfbd000 EDI: fe80c000 EBP: f11f1e2c ESP: f11f1e20 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010216 CR0: 80050033 CR2: fe80c000 CR3: 314c0000 CR4: 003506d0 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff4ff0 DR7: 00000400 Call Trace: ldt_dup_context+0x66/0x80 dup_mm+0x2b3/0x480 copy_process+0x133b/0x15c0 _do_fork+0x94/0x3e0 __ia32_sys_clone+0x67/0x80 __do_fast_syscall_32+0x3f/0x70 do_fast_syscall_32+0x29/0x60 do_SYSENTER_32+0x15/0x20 entry_SYSENTER_32+0x9f/0xf2 EIP: 0xb7eef549 So the arch_sync_kernel_mappings() interface is racy, but removing it would mean to re-introduce the vmalloc_sync_all() interface, which is even more awful. Keep arch_sync_kernel_mappings() in place and catch the race condition in the page-fault handler instead. Do a partial revert of above commit to get vmalloc faulting on x86-32 back in place. Reported-by: Naresh Kamboju <naresh.kamboju(a)linaro.org> Fixes: 7f0a002b5a21 ("x86/mm: remove vmalloc faulting") Cc: stable(a)vger.kernel.org # v5.8+ Signed-off-by: Joerg Roedel <jroedel(a)suse.de> --- arch/x86/mm/fault.c | 78 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 35f1498e9832..6e3e8a124903 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -190,6 +190,53 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address) return pmd_k; } +/* + * Handle a fault on the vmalloc or module mapping area + * + * This is needed because there is a race condition between the time + * when the vmalloc mapping code updates the PMD to the point in time + * where it synchronizes this update with the other page-tables in the + * system. + * + * In this race window another thread/CPU can map an area on the same + * PMD, finds it already present and does not synchronize it with the + * rest of the system yet. As a result v[mz]alloc might return areas + * which are not mapped in every page-table in the system, causing an + * unhandled page-fault when they are accessed. + */ +static noinline int vmalloc_fault(unsigned long address) +{ + unsigned long pgd_paddr; + pmd_t *pmd_k; + pte_t *pte_k; + + /* Make sure we are in vmalloc area: */ + if (!(address >= VMALLOC_START && address < VMALLOC_END)) + return -1; + + /* + * Synchronize this task's top level page-table + * with the 'reference' page table. + * + * Do _not_ use "current" here. We might be inside + * an interrupt in the middle of a task switch.. + */ + pgd_paddr = read_cr3_pa(); + pmd_k = vmalloc_sync_one(__va(pgd_paddr), address); + if (!pmd_k) + return -1; + + if (pmd_large(*pmd_k)) + return 0; + + pte_k = pte_offset_kernel(pmd_k, address); + if (!pte_present(*pte_k)) + return -1; + + return 0; +} +NOKPROBE_SYMBOL(vmalloc_fault); + void arch_sync_kernel_mappings(unsigned long start, unsigned long end) { unsigned long addr; @@ -1110,6 +1157,37 @@ do_kern_addr_fault(struct pt_regs *regs, unsigned long hw_error_code, */ WARN_ON_ONCE(hw_error_code & X86_PF_PK); +#ifdef CONFIG_X86_32 + /* + * We can fault-in kernel-space virtual memory on-demand. The + * 'reference' page table is init_mm.pgd. + * + * NOTE! We MUST NOT take any locks for this case. We may + * be in an interrupt or a critical region, and should + * only copy the information from the master page table, + * nothing more. + * + * Before doing this on-demand faulting, ensure that the + * fault is not any of the following: + * 1. A fault on a PTE with a reserved bit set. + * 2. A fault caused by a user-mode access. (Do not demand- + * fault kernel memory due to user-mode accesses). + * 3. A fault caused by a page-level protection violation. + * (A demand fault would be on a non-present page which + * would have X86_PF_PROT==0). + * + * This is only needed to close a race condition on x86-32 in + * the vmalloc mapping/unmapping code. See the comment above + * vmalloc_fault() for details. On x86-64 the race does not + * exist as the vmalloc mappings don't need to be synchronized + * there. + */ + if (!(hw_error_code & (X86_PF_RSVD | X86_PF_USER | X86_PF_PROT))) { + if (vmalloc_fault(address) >= 0) + return; + } +#endif + /* Was the fault spurious, caused by lazy TLB invalidation? */ if (spurious_kernel_fault(hw_error_code, address)) return; -- 2.28.0

3 years, 8 months

2
2
0 0

[PATCH v3 1/1] mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary

by Suren Baghdasaryan

Currently __set_oom_adj loops through all processes in the system to keep oom_score_adj and oom_score_adj_min in sync between processes sharing their mm. This is done for any task with more that one mm_users, which includes processes with multiple threads (sharing mm and signals). However for such processes the loop is unnecessary because their signal structure is shared as well. Android updates oom_score_adj whenever a tasks changes its role (background/foreground/...) or binds to/unbinds from a service, making it more/less important. Such operation can happen frequently. We noticed that updates to oom_score_adj became more expensive and after further investigation found out that the patch mentioned in "Fixes" introduced a regression. Using Pixel 4 with a typical Android workload, write time to oom_score_adj increased from ~3.57us to ~362us. Moreover this regression linearly depends on the number of multi-threaded processes running on the system. Mark the mm with a new MMF_MULTIPROCESS flag bit when task is created with (CLONE_VM && !CLONE_THREAD && !CLONE_VFORK). Change __set_oom_adj to use MMF_MULTIPROCESS instead of mm_users to decide whether oom_score_adj update should be synchronized between multiple processes. To prevent races between clone() and __set_oom_adj(), when oom_score_adj of the process being cloned might be modified from userspace, we use oom_adj_mutex. Its scope is changed to global. The combination of (CLONE_VM && !CLONE_THREAD) is rarely used except for the case of vfork(). To prevent performance regressions of vfork(), we skip taking oom_adj_mutex and setting MMF_MULTIPROCESS when CLONE_VFORK is specified. Clearing the MMF_MULTIPROCESS flag (when the last process sharing the mm exits) is left out of this patch to keep it simple and because it is believed that this threading model is rare. Should there ever be a need for optimizing that case as well, it can be done by hooking into the exit path, likely following the mm_update_next_owner pattern. With the combination of (CLONE_VM && !CLONE_THREAD && !CLONE_VFORK) being quite rare, the regression is gone after the change is applied. Fixes: 44a70adec910 ("mm, oom_adj: make sure processes sharing mm have same view of oom_score_adj") Reported-by: Tim Murray <timmurray(a)google.com> Debugged-by: Minchan Kim <minchan(a)kernel.org> Suggested-by: Michal Hocko <mhocko(a)kernel.org> Signed-off-by: Suren Baghdasaryan <surenb(a)google.com> --- v3: - Addressed Eric Biederman's comments from: https://lore.kernel.org/linux-mm/87imd6n0qk.fsf@x220.int.ebiederm.org/ -- renabled oom_adj_lock back to oom_adj_mutex -- renamed MMF_PROC_SHARED into MMF_MULTIPROCESS and fixed its comment - Updated description to reflect the change v2: - https://lore.kernel.org/linux-mm/20200824153036.3201505-1-surenb@google.com/ - Implemented proposal from Michal Hocko in: https://lore.kernel.org/linux-fsdevel/20200820124109.GI5033@dhcp22.suse.cz/ - Updated description to reflect the change v1: - https://lore.kernel.org/linux-mm/20200820002053.1424000-1-surenb@google.com/ fs/proc/base.c | 3 +-- include/linux/oom.h | 1 + include/linux/sched/coredump.h | 1 + kernel/fork.c | 21 +++++++++++++++++++++ mm/oom_kill.c | 2 ++ 5 files changed, 26 insertions(+), 2 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 617db4e0faa0..aa69c35d904c 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1055,7 +1055,6 @@ static ssize_t oom_adj_read(struct file *file, char __user *buf, size_t count, static int __set_oom_adj(struct file *file, int oom_adj, bool legacy) { - static DEFINE_MUTEX(oom_adj_mutex); struct mm_struct *mm = NULL; struct task_struct *task; int err = 0; @@ -1095,7 +1094,7 @@ static int __set_oom_adj(struct file *file, int oom_adj, bool legacy) struct task_struct *p = find_lock_task_mm(task); if (p) { - if (atomic_read(&p->mm->mm_users) > 1) { + if (test_bit(MMF_MULTIPROCESS, &p->mm->flags)) { mm = p->mm; mmgrab(mm); } diff --git a/include/linux/oom.h b/include/linux/oom.h index f022f581ac29..2db9a1432511 100644 --- a/include/linux/oom.h +++ b/include/linux/oom.h @@ -55,6 +55,7 @@ struct oom_control { }; extern struct mutex oom_lock; +extern struct mutex oom_adj_mutex; static inline void set_current_oom_origin(void) { diff --git a/include/linux/sched/coredump.h b/include/linux/sched/coredump.h index ecdc6542070f..dfd82eab2902 100644 --- a/include/linux/sched/coredump.h +++ b/include/linux/sched/coredump.h @@ -72,6 +72,7 @@ static inline int get_dumpable(struct mm_struct *mm) #define MMF_DISABLE_THP 24 /* disable THP for all VMAs */ #define MMF_OOM_VICTIM 25 /* mm is the oom victim */ #define MMF_OOM_REAP_QUEUED 26 /* mm was queued for oom_reaper */ +#define MMF_MULTIPROCESS 27 /* mm is shared between processes */ #define MMF_DISABLE_THP_MASK (1 << MMF_DISABLE_THP) #define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK |\ diff --git a/kernel/fork.c b/kernel/fork.c index 4d32190861bd..6129a88c19ad 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1809,6 +1809,25 @@ static __always_inline void delayed_free_task(struct task_struct *tsk) free_task(tsk); } +static void copy_oom_score_adj(u64 clone_flags, struct task_struct *tsk) +{ + /* Skip if kernel thread */ + if (!tsk->mm) + return; + + /* Skip if spawning a thread or using vfork */ + if ((clone_flags & (CLONE_VM | CLONE_THREAD | CLONE_VFORK)) != CLONE_VM) + return; + + /* We need to synchronize with __set_oom_adj */ + mutex_lock(&oom_adj_mutex); + set_bit(MMF_MULTIPROCESS, &tsk->mm->flags); + /* Update the values in case they were changed after copy_signal */ + tsk->signal->oom_score_adj = current->signal->oom_score_adj; + tsk->signal->oom_score_adj_min = current->signal->oom_score_adj_min; + mutex_unlock(&oom_adj_mutex); +} + /* * This creates a new process as a copy of the old one, * but does not actually start it yet. @@ -2281,6 +2300,8 @@ static __latent_entropy struct task_struct *copy_process( trace_task_newtask(p, clone_flags); uprobe_copy_process(p, clone_flags); + copy_oom_score_adj(clone_flags, p); + return p; bad_fork_cancel_cgroup: diff --git a/mm/oom_kill.c b/mm/oom_kill.c index e90f25d6385d..8b84661a6410 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -64,6 +64,8 @@ int sysctl_oom_dump_tasks = 1; * and mark_oom_victim */ DEFINE_MUTEX(oom_lock); +/* Serializes oom_score_adj and oom_score_adj_min updates */ +DEFINE_MUTEX(oom_adj_mutex); static inline bool is_memcg_oom(struct oom_control *oc) { -- 2.28.0.526.ge36021eeef-goog

3 years, 8 months

4
3
0 0

Linux 5.8.6

by Greg Kroah-Hartman

I'm announcing the release of the 5.8.6 kernel. All users of the 5.8 kernel series must upgrade. The updated 5.8.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.8.y and can be browsed at the normal kernel.org git web browser: https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Documentation/admin-guide/ext4.rst | 3 Makefile | 2 arch/arm/boot/dts/ls1021a.dtsi | 2 arch/arm64/Makefile | 3 arch/arm64/boot/dts/qcom/msm8916-pins.dtsi | 2 arch/arm64/include/asm/kvm_arm.h | 3 arch/arm64/include/asm/smp.h | 7 arch/arm64/kernel/cpu_errata.c | 2 arch/arm64/kernel/entry.S | 21 arch/arm64/kernel/process.c | 34 + arch/arm64/kernel/setup.c | 8 arch/arm64/kernel/smp.c | 6 arch/arm64/kvm/hyp/switch.c | 2 arch/mips/Kconfig | 1 arch/mips/kvm/Kconfig | 3 arch/mips/vdso/genvdso.c | 10 arch/powerpc/perf/core-book3s.c | 23 - arch/powerpc/platforms/Kconfig.cputype | 2 arch/powerpc/platforms/cell/Kconfig | 1 arch/powerpc/sysdev/xive/native.c | 2 arch/x86/kernel/apic/vector.c | 16 arch/x86/kernel/smpboot.c | 26 - block/bfq-cgroup.c | 2 block/bfq-iosched.h | 1 block/bfq-wf2q.c | 12 block/bio.c | 10 block/blk-cgroup.c | 8 block/blk-merge.c | 13 block/blk-mq-sched.c | 9 block/blk-mq.c | 12 crypto/af_alg.c | 13 drivers/base/core.c | 12 drivers/base/power/main.c | 16 drivers/block/loop.c | 33 - drivers/block/null_blk_main.c | 2 drivers/block/virtio_blk.c | 31 + drivers/cpufreq/intel_pstate.c | 18 drivers/devfreq/devfreq.c | 4 drivers/dma/Kconfig | 1 drivers/edac/edac_mc.c | 4 drivers/edac/ie31200_edac.c | 50 ++ drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c | 31 + drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 16 drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 5 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 4 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 7 drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 220 +++++++--- drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 21 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 6 drivers/gpu/drm/amd/amdkfd/kfd_process.c | 4 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 20 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 81 +-- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c | 10 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c | 16 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.h | 14 drivers/gpu/drm/amd/display/modules/color/Makefile | 2 drivers/gpu/drm/amd/display/modules/color/color_gamma.c | 115 ++--- drivers/gpu/drm/amd/display/modules/color/color_gamma.h | 18 drivers/gpu/drm/amd/display/modules/color/color_table.c | 48 ++ drivers/gpu/drm/amd/display/modules/color/color_table.h | 47 ++ drivers/gpu/drm/amd/display/modules/freesync/freesync.c | 36 + drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c | 9 drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.c | 22 - drivers/gpu/drm/amd/powerplay/hwmgr/vega12_thermal.c | 21 drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c | 44 -- drivers/gpu/drm/amd/powerplay/hwmgr/vega20_thermal.c | 21 drivers/gpu/drm/arm/display/komeda/komeda_crtc.c | 7 drivers/gpu/drm/arm/malidp_drv.c | 1 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 7 drivers/gpu/drm/drm_atomic_helper.c | 7 drivers/gpu/drm/drm_atomic_state_helper.c | 4 drivers/gpu/drm/drm_color_mgmt.c | 2 drivers/gpu/drm/drm_crtc.c | 4 drivers/gpu/drm/drm_dp_mst_topology.c | 4 drivers/gpu/drm/drm_mode_object.c | 4 drivers/gpu/drm/drm_plane.c | 2 drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 11 drivers/gpu/drm/etnaviv/etnaviv_sched.c | 11 drivers/gpu/drm/i915/i915_cmd_parser.c | 14 drivers/gpu/drm/msm/adreno/adreno_gpu.c | 2 drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 2 drivers/gpu/drm/nouveau/dispnv50/disp.c | 4 drivers/gpu/drm/nouveau/nouveau_connector.c | 4 drivers/gpu/drm/nouveau/nouveau_fbcon.c | 4 drivers/gpu/drm/omapdrm/omap_crtc.c | 8 drivers/gpu/drm/omapdrm/omap_drv.c | 4 drivers/gpu/drm/radeon/radeon_connectors.c | 20 drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 6 drivers/gpu/drm/tegra/dc.c | 1 drivers/gpu/drm/tidss/tidss_crtc.c | 3 drivers/gpu/drm/tidss/tidss_kms.c | 5 drivers/gpu/drm/virtio/virtgpu_object.c | 1 drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 8 drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 9 drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 9 drivers/gpu/host1x/job.c | 13 drivers/hid/hid-ids.h | 1 drivers/hid/hid-quirks.c | 1 drivers/hid/i2c-hid/i2c-hid-core.c | 22 - drivers/hid/usbhid/hiddev.c | 4 drivers/hwmon/gsc-hwmon.c | 1 drivers/hwmon/nct7904.c | 4 drivers/i2c/busses/i2c-i801.c | 4 drivers/i2c/busses/i2c-rcar.c | 1 drivers/i2c/i2c-core-base.c | 2 drivers/iommu/dma-iommu.c | 4 drivers/iommu/iova.c | 4 drivers/irqchip/irq-stm32-exti.c | 14 drivers/media/cec/core/cec-api.c | 8 drivers/media/i2c/imx290.c | 7 drivers/media/pci/ttpci/av7110.c | 5 drivers/media/platform/davinci/vpif_capture.c | 2 drivers/mfd/intel-lpss-pci.c | 19 drivers/misc/habanalabs/debugfs.c | 8 drivers/mmc/host/sdhci-of-arasan.c | 25 - drivers/net/ethernet/freescale/gianfar.c | 4 drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c | 2 drivers/net/macvlan.c | 21 drivers/net/wan/hdlc.c | 1 drivers/net/wan/hdlc_x25.c | 17 drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 8 drivers/net/wireless/realtek/rtlwifi/usb.c | 5 drivers/nvme/host/fc.c | 4 drivers/nvme/host/multipath.c | 15 drivers/nvme/target/configfs.c | 1 drivers/pci/controller/dwc/pcie-qcom.c | 58 ++ drivers/pci/slot.c | 6 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c | 26 + drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h | 1 drivers/pinctrl/mediatek/pinctrl-paris.c | 7 drivers/platform/chrome/cros_ec_sensorhub_ring.c | 4 drivers/s390/cio/css.c | 5 drivers/scsi/fcoe/fcoe_ctlr.c | 2 drivers/scsi/lpfc/lpfc_vport.c | 26 - drivers/scsi/qla2xxx/qla_gs.c | 48 +- drivers/scsi/qla2xxx/qla_mbx.c | 8 drivers/scsi/qla2xxx/qla_nvme.c | 5 drivers/scsi/qla2xxx/qla_os.c | 5 drivers/scsi/qla2xxx/qla_target.c | 2 drivers/scsi/scsi_debug.c | 2 drivers/scsi/scsi_transport_iscsi.c | 2 drivers/scsi/ufs/ufshcd.c | 14 drivers/spi/spi-stm32.c | 73 +-- drivers/staging/rts5208/rtsx.c | 1 drivers/target/target_core_internal.h | 1 drivers/target/target_core_transport.c | 7 drivers/target/target_core_user.c | 9 drivers/target/target_core_xcopy.c | 11 drivers/tty/serial/8250/8250_exar.c | 24 - drivers/tty/serial/8250/8250_port.c | 9 drivers/tty/serial/amba-pl011.c | 16 drivers/tty/serial/samsung_tty.c | 8 drivers/tty/serial/stm32-usart.c | 2 drivers/tty/vt/vt.c | 5 drivers/tty/vt/vt_ioctl.c | 12 drivers/usb/class/cdc-acm.c | 22 - drivers/usb/core/driver.c | 40 + drivers/usb/core/generic.c | 5 drivers/usb/core/quirks.c | 7 drivers/usb/dwc3/gadget.c | 107 ++++ drivers/usb/gadget/function/f_ncm.c | 81 +++ drivers/usb/gadget/function/f_tcm.c | 7 drivers/usb/gadget/u_f.h | 38 + drivers/usb/host/ohci-exynos.c | 5 drivers/usb/host/xhci-debugfs.c | 8 drivers/usb/host/xhci-hub.c | 19 drivers/usb/host/xhci-pci-renesas.c | 19 drivers/usb/host/xhci-tegra.c | 4 drivers/usb/host/xhci.c | 3 drivers/usb/misc/lvstest.c | 2 drivers/usb/misc/sisusbvga/sisusb.c | 2 drivers/usb/misc/yurex.c | 2 drivers/usb/storage/unusual_devs.h | 2 drivers/usb/storage/unusual_uas.h | 14 drivers/usb/typec/tcpm/tcpm.c | 28 + drivers/usb/typec/ucsi/displayport.c | 9 drivers/usb/typec/ucsi/ucsi.c | 103 ++-- drivers/usb/usbip/stub_dev.c | 6 drivers/vdpa/ifcvf/ifcvf_base.h | 2 drivers/vdpa/ifcvf/ifcvf_main.c | 9 drivers/video/fbdev/controlfb.c | 2 drivers/video/fbdev/core/fbcon.c | 25 + drivers/video/fbdev/core/fbmem.c | 8 drivers/video/fbdev/core/fbsysfs.c | 4 drivers/video/fbdev/omap2/omapfb/dss/dispc.c | 7 drivers/video/fbdev/omap2/omapfb/dss/dsi.c | 7 drivers/video/fbdev/omap2/omapfb/dss/dss.c | 7 drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c | 5 drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c | 5 drivers/video/fbdev/omap2/omapfb/dss/venc.c | 7 drivers/video/fbdev/ps3fb.c | 5 drivers/xen/events/events_base.c | 16 fs/btrfs/ctree.h | 4 fs/btrfs/disk-io.c | 1 fs/btrfs/extent-tree.c | 17 fs/btrfs/file.c | 10 fs/btrfs/free-space-cache.c | 2 fs/btrfs/inode.c | 18 fs/btrfs/qgroup.c | 14 fs/btrfs/qgroup.h | 2 fs/btrfs/super.c | 1 fs/btrfs/tree-log.c | 10 fs/buffer.c | 9 fs/ceph/file.c | 5 fs/ceph/mds_client.c | 14 fs/ext4/block_validity.c | 8 fs/ext4/ext4.h | 7 fs/ext4/ext4_jbd2.c | 25 + fs/ext4/extents.c | 10 fs/ext4/file.c | 2 fs/ext4/indirect.c | 2 fs/ext4/inode.c | 6 fs/ext4/ioctl.c | 2 fs/ext4/mballoc.c | 95 +++- fs/ext4/mballoc.h | 4 fs/ext4/move_extent.c | 4 fs/ext4/super.c | 195 ++++++-- fs/ext4/sysfs.c | 2 fs/f2fs/f2fs.h | 4 fs/f2fs/inline.c | 19 fs/f2fs/node.c | 6 fs/f2fs/recovery.c | 10 fs/f2fs/super.c | 5 fs/f2fs/sysfs.c | 9 fs/fs-writeback.c | 83 ++- fs/hugetlbfs/inode.c | 6 fs/io-wq.c | 21 fs/io_uring.c | 40 + fs/jbd2/transaction.c | 26 + fs/nfsd/nfs4state.c | 2 fs/xfs/libxfs/xfs_trans_inode.c | 2 fs/xfs/xfs_icache.c | 3 fs/xfs/xfs_inode.c | 25 + include/drm/drm_modeset_lock.h | 9 include/linux/dma-direct.h | 3 include/linux/dma-mapping.h | 5 include/linux/efi.h | 4 include/linux/fb.h | 2 include/linux/fs.h | 8 include/linux/netfilter_ipv6.h | 18 include/trace/events/ext4.h | 17 include/trace/events/writeback.h | 13 kernel/Makefile | 1 kernel/bpf/bpf_iter.c | 15 kernel/bpf/task_iter.c | 3 kernel/dma/direct.c | 13 kernel/dma/pool.c | 147 +++--- kernel/irq/matrix.c | 7 kernel/locking/lockdep_proc.c | 2 kernel/trace/blktrace.c | 12 mm/khugepaged.c | 5 mm/page_counter.c | 13 net/bridge/netfilter/nf_conntrack_bridge.c | 8 net/can/j1939/transport.c | 15 net/ipv6/netfilter.c | 3 net/netfilter/nf_tables_api.c | 16 net/openvswitch/datapath.c | 10 net/openvswitch/flow_table.c | 35 - net/openvswitch/flow_table.h | 3 sound/pci/cs46xx/cs46xx_lib.c | 2 sound/pci/cs46xx/dsp_spos_scb_lib.c | 2 sound/pci/hda/hda_codec.c | 2 sound/pci/hda/hda_generic.c | 2 sound/pci/hda/hda_intel.c | 2 sound/pci/hda/patch_hdmi.c | 17 sound/pci/hda/patch_realtek.c | 12 sound/pci/hda/patch_sigmatel.c | 2 sound/pci/ice1712/prodigy192.c | 2 sound/pci/oxygen/xonar_dg.c | 2 sound/soc/codecs/wm8958-dsp2.c | 4 sound/soc/img/img-i2s-in.c | 4 sound/soc/img/img-parallel-out.c | 4 sound/soc/intel/boards/skl_hda_dsp_common.h | 1 sound/soc/intel/boards/skl_hda_dsp_generic.c | 17 sound/soc/intel/boards/sof_sdw.c | 1 sound/soc/intel/boards/sof_sdw_common.h | 1 sound/soc/intel/boards/sof_sdw_rt711.c | 15 sound/soc/tegra/tegra30_ahub.c | 4 sound/soc/tegra/tegra30_i2s.c | 4 sound/usb/mixer.c | 8 sound/usb/quirks-table.h | 34 + tools/bpf/bpftool/btf_dumper.c | 2 tools/bpf/bpftool/link.c | 4 tools/bpf/bpftool/main.h | 10 tools/bpf/bpftool/prog.c | 16 tools/lib/bpf/libbpf.c | 14 tools/testing/selftests/bpf/prog_tests/bpf_obj_id.c | 8 tools/testing/selftests/bpf/prog_tests/btf_dump.c | 27 - tools/testing/selftests/bpf/prog_tests/core_extern.c | 4 tools/testing/selftests/bpf/prog_tests/core_reloc.c | 20 tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c | 6 tools/testing/selftests/bpf/prog_tests/flow_dissector.c | 2 tools/testing/selftests/bpf/prog_tests/global_data.c | 6 tools/testing/selftests/bpf/prog_tests/mmap.c | 19 tools/testing/selftests/bpf/prog_tests/prog_run_xattr.c | 2 tools/testing/selftests/bpf/prog_tests/skb_ctx.c | 2 tools/testing/selftests/bpf/prog_tests/test_global_funcs.c | 2 tools/testing/selftests/bpf/progs/core_reloc_types.h | 69 +-- tools/testing/selftests/bpf/test_btf.c | 8 tools/testing/selftests/bpf/test_progs.h | 5 tools/testing/selftests/net/icmp_redirect.sh | 2 tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/ebb.c | 2 tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c | 1 tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c | 7 tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c | 2 313 files changed, 2869 insertions(+), 1351 deletions(-) Abhishek Sahu (1): PCI: qcom: Change duplicate PCI reset to phy reset Aditya Pakki (5): drm/radeon: fix multiple reference count leak omapfb: fix multiple reference count leaks due to pm_runtime_get_sync drm/nouveau/drm/noveau: fix reference count leak in nouveau_fbcon_open drm/nouveau: fix reference count leak in nv50_disp_atomic_commit drm/nouveau: Fix reference count leak in nouveau_connector_detect Adrian Hunter (1): scsi: ufs: Improve interrupt handling for shared interrupts Alain Volmat (1): spi: stm32: always perform registers configuration prior to transfer Alan Stern (3): USB: yurex: Fix bad gfp argument USB: quirks: Ignore duplicate endpoint on Sound Devices MixPre-D usb: storage: Add unusual_uas entry for Sony PSZ drives Alex Deucher (4): drm/amdgpu/fence: fix ref count leak when pm_runtime_get_sync fails drm/amdkfd: fix ref count leak when pm_runtime_get_sync fails drm/amdgpu/pm: fix ref count leak when pm_runtime_get_sync fails drm/amdgpu: Fix buffer overflow in INFO ioctl Alex Zhuravlev (1): ext4: skip non-loaded groups at cr=0/1 when scanning for good groups Alexander Monakov (1): drm/amd/display: use correct scale for actual_brightness Alexander Popov (1): gcc-plugins/stackleak: Don't instrument itself Alexander Tsoy (1): ALSA: usb-audio: Add capture support for Saffire 6 (USB 1.1) Alexey Kardashevskiy (2): powerpc/xive: Ignore kmemleak false positives powerpc/perf: Fix crashes with generic_compat_pmu & BHRB Alvin Šipraga (1): macvlan: validate setting of multiple remote source MAC addresses Amelie Delaunay (2): spi: stm32: fix fifo threshold level in case of short transfer spi: stm32: fix stm32_spi_prepare_mbr in case of odd clk_rate Andrey Konovalov (2): media: i2c: imx290: fix reset GPIO pin handling efi: provide empty efi_enter_virtual_mode implementation Andrii Nakryiko (4): tools/bpftool: Fix compilation warnings in 32-bit mode selftest/bpf: Fix compilation warnings in 32-bit mode selftests/bpf: Fix btf_dump test cases on 32-bit arches selftests/bpf: Correct various core_reloc 64-bit assumptions Andy Shevchenko (4): mfd: intel-lpss: Add Intel Emmitsburg PCH PCI IDs mfd: intel-lpss: Add Intel Tiger Lake PCH-H PCI IDs i2c: core: Don't fail PRP0001 enumeration when no ID table exist USB: gadget: u_f: Unbreak offset calculation in VLAs Ansuel Smith (2): PCI: qcom: Add missing ipq806x clocks in PCIe driver PCI: qcom: Add missing reset for ipq806x Anthony Koo (2): drm/amd/display: Fix LFC multiplier changing erratically drm/amd/display: Switch to immediate mode for updating infopackets Antonio Borneo (1): spi: stm32h7: fix race condition at end of transfer Arnd Bergmann (1): powerpc/spufs: add CONFIG_COREDUMP dependency Ashok Raj (1): x86/hotplug: Silence APIC only after all interrupts are migrated Athira Rajeev (1): powerpc/perf: Fix soft lockups due to missed interrupt accounting Badhri Jagan Sridharan (1): usb: typec: tcpm: Fix Fix source hard reset response for TDA 2.3.1.1 and TDA 2.3.1.2 failures Bastien Nocera (2): USB: Also match device drivers using the ->match vfunc USB: Fix device driver race Bhawanpreet Lakha (1): drm/dp_mst: Don't return error code when crtc is null Bodo Stroesser (1): scsi: target: tcmu: Fix crash on ARM during cmd completion Boris Burkov (1): btrfs: detect nocow for swap after snapshot delete Brooke Basile (2): USB: gadget: u_f: add overflow checks to VLA macros USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb() Changming Liu (1): USB: sisusbvga: Fix a potential UB casued by left shifting a negative value Chanwoo Choi (1): PM / devfreq: Fix the wrong end with semicolon Chao Yu (1): f2fs: fix error path in do_recover_data() Chris Wilson (1): locking/lockdep: Fix overflow in presentation of average lock-time Christian Gmeiner (1): drm/etnaviv: fix external abort seen on GC600 rev 0x19 Christoph Hellwig (1): dma-pool: fix coherent pool allocations for IOMMU mappings Christophe JAILLET (1): usb: gadget: f_tcm: Fix some resource leaks in some error paths Christophe Leroy (1): powerpc/32s: Disable VMAP stack which CONFIG_ADB_PMU Cyril Roelandt (1): USB: Ignore UAS for JMicron JMS567 ATA/ATAPI Bridge Dan Carpenter (2): habanalabs: Fix memory corruption in debugfs dma-pool: Fix an uninitialized variable bug in atomic_pool_expand() Daniel Vetter (3): drm/modeset-lock: Take the modeset BKL for legacy drivers drm/atomic-helper: reset vblank on crtc reset drm/vmwgfx/stdu: Use drm_mode_config_reset Dave Chinner (1): xfs: Don't allow logging of XFS_ISTALE inodes David Ahern (1): selftests: disable rp_filter for icmp_redirect.sh David Brazdil (1): KVM: arm64: Fix symbol dependency in __hyp_call_panic_nvhe Dehe Gu (1): f2fs: remove write attribute of main_blkaddr sysfs node Desnes A. Nunes do Rosario (1): selftests/powerpc: Purge extra count_pmc() calls of ebb selftests Dick Kennedy (1): scsi: lpfc: Fix shost refcount mismatch when deleting vport Ding Hui (1): xhci: Always restore EP_SOFT_CLEAR_TOGGLE even if ep reset failed Dmitry Monakhov (1): bfq: fix blkio cgroup leakage v4 Dmitry Osipenko (1): gpu: host1x: Put gather's BO on pinning error Douglas Gilbert (1): scsi: scsi_debug: Fix scp is NULL errors Evan Quan (6): drm/amd/powerplay: correct Vega20 cached smu feature state drm/amd/powerplay: correct UVD/VCE PG state on custom pptable uploading drm/amd/pm: correct Vega10 swctf limit setting drm/amd/pm: correct Vega12 swctf limit setting drm/amd/pm: correct Vega20 swctf limit setting drm/amd/pm: correct the thermal alert temperature limit settings Evgeny Novikov (3): staging: rts5208: fix memleaks on error handling paths in probe media: davinci: vpif_capture: fix potential double free USB: lvtest: return proper error code in probe Filipe Manana (1): btrfs: fix space cache memory leak after transaction abort Florian Westphal (1): netfilter: avoid ipv6 -> nf_defrag_ipv6 module dependency Frank van der Linden (1): arm64: vdso32: make vdso32 install conditional George Kennedy (2): fbcon: prevent user font height or width change from causing potential out-of-bounds access vt_ioctl: change VT_RESIZEX ioctl to check for error return from vc_resize() Greg Kroah-Hartman (1): Linux 5.8.6 Guchun Chen (2): drm/amdgpu: fix RAS memory leak in error case drm/amdgpu: fix NULL pointer access issue when unloading driver Gwendal Grignou (1): platform/chrome: cros_ec_sensorhub: Fix EC timestamp overflow Hanks Chen (1): pinctrl: mediatek: avoid virtual gpio trying to set reg Hans Verkuil (1): cec-api: prevent leaking memory through hole in structure Hans de Goede (5): HID: i2c-hid: Always sleep 60ms after I2C_HID_PWR_ON commands usb: typec: ucsi: Fix AB BA lock inversion usb: typec: ucsi: Fix 2 unlocked ucsi_run_command calls usb: typec: ucsi: Rework ppm_lock handling usb: typec: ucsi: Hold con->lock for the entire duration of ucsi_register_port() Hector Martin (1): ALSA: usb-audio: Update documentation comment for MS2109 quirk Heikki Krogerus (1): device property: Fix the secondary firmware node handling in set_primary_fwnode() Herbert Xu (1): crypto: af_alg - Work around empty control messages without MSG_MORE Holger Assmann (1): serial: stm32: avoid kernel warning on absence of optional IRQ Hou Pu (1): null_blk: fix passing of REQ_FUA flag in null_handle_rq Huang Rui (1): drm/amdkfd: fix the wrong sdma instance query for renoir Hugh Dickins (1): khugepaged: khugepaged_test_exit() check mmget_still_valid() Ikjoon Jang (1): HID: quirks: add NOGET quirk for Logitech GROUP J. Bruce Fields (1): nfsd: fix oops on mixed NFSv4/NFSv3 client access JC Kuo (2): usb: host: xhci-tegra: otg usb2/usb3 port init usb: host: xhci-tegra: fix tegra_xusb_get_phy() James Morse (1): KVM: arm64: Set HCR_EL2.PTW to prevent AT taking synchronous exception Jan Kara (6): ext4: don't BUG on inconsistent journal feature ext4: handle error of ext4_setup_system_zone() on remount ext4: correctly restore system zone info when remount fails writeback: Protect inode->i_io_list with inode->i_lock writeback: Avoid skipping inode writeback writeback: Fix sync livelock due to b_dirty_time processing Jarkko Nikula (1): i2c: i801: Add support for Intel Tiger Lake PCH-H Jason Baron (2): EDAC/ie31200: Fallback if host bridge device is already initialized hwmon: (nct7904) Correct divide by 0 Jason Wang (2): vdpa: ifcvf: return err when fail to request config irq vdpa: ifcvf: free config irq in ifcvf_free_irq() Javed Hasan (1): scsi: fcoe: Memory leak fix in fcoe_sysfs_fcf_del() Jens Axboe (4): io_uring: clear req->result on IOPOLL re-issue io_uring: don't recurse on tsk->sighand->siglock with signalfd io_uring: don't use poll handler if file can't be nonblocking read/written io_uring: make offset == -1 consistent with preadv2/pwritev2 Jia-Ju Bai (1): media: pci: ttpci: av7110: fix possible buffer overflow caused by bad DMA value in debiirq() Jianlin Lv (1): selftests/bpf: Fix segmentation fault in test_progs Jiansong Chen (1): drm/amdgpu/gfx10: refine mgcg setting Jiaxun Yang (1): MIPS: KVM: Limit Trap-and-Emulate to MIPS32R2 only Jing Xiangfeng (1): scsi: iscsi: Do not put host in iscsi_set_flashnode_param() Josef Bacik (1): btrfs: check the right error variable in btrfs_del_dir_entries_in_log Kai Vehmanen (1): ASoC: intel/skl/hda - fix probe regression on systems without i915 Kai-Heng Feng (5): ALSA: hda/hdmi: Add quirk to force connectivity ALSA: hda/realtek: Fix pin default on Intel NUC 8 Rugged ALSA: hda/hdmi: Use force connectivity quirk on another HP desktop xhci: Do warm-reset when both CAS and XDEV_RESUME are set USB: quirks: Add no-lpm quirk for another Raydium touchscreen Kaige Li (1): ALSA: hda: Add support for Loongson 7A1000 controller Kefeng Wang (1): arm64: Fix __cpu_logical_map undefined issue Keith Busch (1): block: fix get_max_io_size() Lewis Huang (1): drm/amd/display: change global buffer to local buffer Li Guifu (1): f2fs: fix use-after-free issue Li Jun (1): usb: host: xhci: fix ep context print mismatch in debugfs Lucas Stach (1): drm/etnaviv: always start/stop scheduler in timeout processing Luis Chamberlain (1): blktrace: ensure our debugfs dir exists Lukas Czerner (3): jbd2: make sure jh have b_transaction set in refile/unfile_buffer ext4: handle read only external journal device ext4: handle option set by mount flags correctly Lukas Wunner (2): serial: pl011: Fix oops on -EPROBE_DEFER serial: pl011: Don't leak amba_ports entry on driver register error M. Vefa Bicakci (1): usbip: Implement a match function to fix usbip Manish Narani (1): mmc: sdhci-of-arasan: fix timings allocation code Marc Zyngier (2): arm64: Move handling of erratum 1418040 into C code arm64: Allow booting of late CPUs affected by erratum 1418040 Marcos Paulo de Souza (1): btrfs: reset compression level for lzo on remount Martin Wilck (1): nvme: multipath: round-robin: fix single non-optimized path case Matthew Wilcox (Oracle) (1): block: Fix page_is_mergeable() for compound pages Michael Ellerman (1): video: fbdev: controlfb: Fix build for COMPILE_TEST=y && PPC_PMAC=n Mika Kuoppala (1): drm/i915: Fix cmd parser desc matching with masks Mike Christie (2): scsi: target: Fix xcopy sess release leak scsi: fcoe: Fix I/O path allocation Mike Kravetz (1): hugetlbfs: prevent filesystem stacking of hugetlbfs Mike Pozulp (1): ALSA: hda/realtek: Add model alc298-samsung-headphone Ming Lei (5): block: respect queue limit of max discard segment block: virtio_blk: fix handling single range discard request blk-mq: insert request not through ->queue_rq into sw/scheduler queue block: loop: set discard granularity and alignment for block device backed loop blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART Navid Emamdoost (4): drm/amdgpu: fix ref count leak in amdgpu_driver_open_kms drm/amd/display: fix ref count leak in amdgpu_drm_ioctl drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config drm/amdgpu/display: fix ref count leak when pm_runtime_get_sync fails Nicholas Kazlauskas (1): drm/amd/powerplay: Fix hardmins not being sent to SMU for RV Nicolas Saenz Julienne (2): brcmfmac: Set timeout value when configuring power save dma-pool: Only allocate from CMA when in same memory zone Nikolay Borisov (1): btrfs: make btrfs_qgroup_check_reserved_leak take btrfs_inode Oleksij Rempel (1): can: j1939: transport: j1939_xtp_rx_dat_one(): compare own packets to detect corruptions Pablo Neira Ayuso (1): netfilter: nf_tables: report EEXIST on overlaps Pavel Begunkov (1): io-wq: fix hang after cancelling pending hashed work Peilin Ye (1): HID: hiddev: Fix slab-out-of-bounds write in hiddev_ioctl_usage() Peng Fan (1): mips/vdso: Fix resource leaks in genvdso.c Pierre-Louis Bossart (1): ASoC: Intel: sof_sdw_rt711: remove properties in card remove Qian Cai (1): mm/page_counter: fix various data races at memsw Qingqing Zhuo (1): drm/amd/display: fix compilation error on allmodconfig Qiushi Wu (5): ASoC: img: Fix a reference count leak in img_i2s_in_set_fmt ASoC: img-parallel-out: Fix a reference count leak ASoC: tegra: Fix reference count leaks. drm/amdkfd: Fix reference count leaks. PCI: Fix pci_create_slot() reference count leak Qu Wenruo (1): btrfs: file: reserve qgroup space after the hole punch range is locked Quinn Tran (5): scsi: qla2xxx: Flush all sessions on zone disable scsi: qla2xxx: Flush I/O on zone disable scsi: qla2xxx: Indicate correct supported speeds for Mezz card scsi: qla2xxx: Fix login timeout scsi: qla2xxx: Fix null pointer access during disconnect from subsystem Rafael J. Wysocki (2): cpufreq: intel_pstate: Fix EPP setting via sysfs in active mode PM: sleep: core: Fix the handling of pending runtime resume requests Randy Dunlap (2): ALSA: pci: delete repeated words in comments pinctrl: mediatek: fix build for tristate changes Reto Schneider (1): rtlwifi: rtl8192cu: Prevent leaking urb Rob Clark (1): drm/msm/adreno: fix updating ring fence Robin Murphy (1): iommu/iova: Don't BUG on invalid PFNs Roland Scheidegger (2): drm/vmwgfx/sou: Use drm_mode_config_reset drm/vmwgfx/ldu: Use drm_mode_config_reset Sagi Grimberg (1): nvmet: fix a memory leak Sasha Levin (1): dmaengine: idxd: fix PCI_MSI build errors Saurav Kashyap (2): scsi: qla2xxx: Check if FW supports MQ before enabling Revert "scsi: qla2xxx: Fix crash on qla2x00_mailbox_command" Sergey Senozhatsky (1): serial: 8250: change lock order in serial8250_do_startup() Stanley Chu (2): scsi: ufs: Fix possible infinite loop in ufshcd_hold scsi: ufs: Clean up completed request without interrupt notification Stephan Gerhold (1): arm64: dts: qcom: msm8916: Pull down PDM GPIOs during sleep Sumera Priyadarsini (1): net: gianfar: Add of_node_put() before goto statement Sylwester Nawrocki (1): ASoC: wm8994: Avoid attempts to read unreadable registers Tamseel Shams (1): serial: samsung: Removes the IRQ not found warning Tang Bin (1): usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe() Tetsuo Handa (2): vt: defer kfree() of vc_screenbuf in vc_do_resize() fbmem: pull fbcon_update_vcs() out of fb_set_var() Thinh Nguyen (4): usb: uas: Add quirk for PNY Pro Elite usb: dwc3: gadget: Don't setup more than requested usb: dwc3: gadget: Fix handling ZLP usb: dwc3: gadget: Handle ZLP for sg requests Thomas Gleixner (3): XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information. genirq/matrix: Deal with the sillyness of for_each_cpu() on UP x86/irq: Unbreak interrupt affinity setting Tianjia Zhang (1): nvme-fc: Fix wrong return value in __nvme_fc_init_request() Tim Harvey (1): hwmon: (gsc-hwmon) Scale temperature to millidegrees Tobias Schramm (1): spi: stm32: clear only asserted irq flags on interrupt Toke Høiland-Jørgensen (2): libbpf: Prevent overriding errno when logging errors libbpf: Fix map index used in error message Tom Rix (1): USB: cdc-acm: rework notification_buffer resizing Tom Yan (1): ALSA: usb-audio: ignore broken processing/extension unit Tonghao Zhang (1): net: openvswitch: introduce common code for flushing flows Valmer Huhn (1): serial: 8250_exar: Fix number of ports for Commtech PCIe cards Vineeth Vijayan (1): s390/cio: add cond_resched() in the slow_eval_known_fn() loop Vinod Koul (1): usb: renesas-xhci: remove version check Wolfram Sang (1): i2c: rcar: in slave mode, clear NACK earlier Xianting Tian (1): fs: prevent BUG_ON in submit_bh_wbc() Xie He (1): drivers/net/wan/hdlc_x25: Added needed_headroom and a skb->len check Xin He (1): drm/virtio: fix memory leak in virtio_gpu_cleanup_object() Xiubo Li (2): ceph: fix potential mdsc use-after-free crash ceph: do not access the kiocb after aio requests Yangbo Lu (1): ARM: dts: ls1021a: output PPS signal on FIPER2 Yauheni Kaliuta (1): bpf: selftests: global_funcs: Check err_str before strstr Yonghong Song (2): bpf: Fix a rcu_sched stall issue with bpf task/task_file iterator bpf: Avoid visit same object multiple times Yufen Yu (1): blkcg: fix memleak for iolatency Zhenzhong Duan (1): EDAC/mc: Call edac_inc_ue_error() before panic brookxu (1): ext4: limit the length of per-inode prealloc list qiuguorui1 (1): irqchip/stm32-exti: Avoid losing interrupts due to clearing pending bits by mistake zhangyi (F) (2): ext4: abort the filesystem if failed to async write metadata buffer jbd2: abort journal if free a async write error metadata buffer

3 years, 8 months

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Linux 5.4.62

by Greg Kroah-Hartman

I'm announcing the release of the 5.4.62 kernel. All users of the 5.4 kernel series must upgrade. The updated 5.4.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.4.y and can be browsed at the normal kernel.org git web browser: https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 13 arch/arm/boot/deflate_xip_data.sh | 2 arch/arm/boot/dts/ls1021a.dtsi | 2 arch/arm64/Makefile | 3 arch/arm64/boot/dts/qcom/msm8916-pins.dtsi | 2 arch/arm64/include/asm/smp.h | 7 arch/arm64/kernel/cpu_errata.c | 2 arch/arm64/kernel/process.c | 34 + arch/arm64/kernel/setup.c | 8 arch/arm64/kernel/smp.c | 6 arch/arm64/kvm/hyp/switch.c | 2 arch/ia64/Makefile | 2 arch/m68k/Makefile | 8 arch/mips/vdso/genvdso.c | 10 arch/parisc/Makefile | 2 arch/powerpc/kernel/cpu_setup_power.S | 2 arch/powerpc/perf/core-book3s.c | 23 arch/powerpc/platforms/cell/Kconfig | 1 arch/powerpc/sysdev/xive/native.c | 2 arch/s390/include/asm/numa.h | 1 arch/s390/include/asm/topology.h | 2 arch/s390/numa/numa.c | 6 arch/x86/kernel/smpboot.c | 26 block/bfq-cgroup.c | 2 block/bfq-iosched.h | 1 block/bfq-wf2q.c | 12 block/bio.c | 10 block/blk-cgroup.c | 8 block/blk-merge.c | 13 block/blk-mq-sched.c | 9 block/blk-mq.c | 12 crypto/af_alg.c | 13 drivers/base/core.c | 12 drivers/base/power/main.c | 16 drivers/block/loop.c | 33 - drivers/block/null_blk_main.c | 2 drivers/block/virtio_blk.c | 31 - drivers/cpufreq/intel_pstate.c | 18 drivers/devfreq/rk3399_dmc.c | 51 + drivers/edac/i7core_edac.c | 4 drivers/edac/ie31200_edac.c | 50 + drivers/edac/pnd2_edac.c | 2 drivers/edac/sb_edac.c | 25 drivers/edac/skx_common.c | 9 drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 16 drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 5 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 7 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 6 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 20 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 58 + drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c | 16 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.h | 14 drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c | 9 drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.c | 22 drivers/gpu/drm/amd/powerplay/hwmgr/vega12_thermal.c | 21 drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c | 44 - drivers/gpu/drm/amd/powerplay/hwmgr/vega20_thermal.c | 21 drivers/gpu/drm/i915/i915_cmd_parser.c | 14 drivers/gpu/drm/ingenic/ingenic-drm.c | 6 drivers/gpu/drm/msm/adreno/adreno_gpu.c | 2 drivers/gpu/drm/nouveau/dispnv50/disp.c | 4 drivers/gpu/drm/nouveau/nouveau_connector.c | 4 drivers/gpu/drm/nouveau/nouveau_fbcon.c | 4 drivers/gpu/drm/radeon/radeon_connectors.c | 20 drivers/gpu/drm/xen/xen_drm_front.c | 2 drivers/gpu/drm/xen/xen_drm_front_gem.c | 8 drivers/gpu/drm/xen/xen_drm_front_kms.c | 2 drivers/hid/hid-ids.h | 1 drivers/hid/hid-quirks.c | 1 drivers/hid/i2c-hid/i2c-hid-core.c | 22 drivers/hid/usbhid/hiddev.c | 4 drivers/hwmon/nct7904.c | 4 drivers/i2c/busses/i2c-rcar.c | 1 drivers/i2c/i2c-core-base.c | 2 drivers/iommu/iova.c | 4 drivers/irqchip/irq-stm32-exti.c | 14 drivers/media/cec/cec-api.c | 8 drivers/media/pci/ttpci/av7110.c | 5 drivers/media/platform/davinci/vpif_capture.c | 2 drivers/media/rc/gpio-ir-tx.c | 7 drivers/mfd/intel-lpss-pci.c | 19 drivers/net/ethernet/amazon/ena/ena_netdev.c | 5 drivers/net/ethernet/freescale/gianfar.c | 4 drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c | 2 drivers/net/ipvlan/ipvlan_main.c | 27 drivers/net/macvlan.c | 21 drivers/net/wireless/ath/ath10k/hw.h | 2 drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 8 drivers/net/wireless/realtek/rtlwifi/usb.c | 5 drivers/nvme/host/fc.c | 4 drivers/nvme/host/multipath.c | 15 drivers/pci/controller/dwc/pcie-qcom.c | 58 + drivers/pci/slot.c | 6 drivers/s390/cio/css.c | 5 drivers/scsi/fcoe/fcoe_ctlr.c | 2 drivers/scsi/lpfc/lpfc_vport.c | 26 drivers/scsi/qla2xxx/qla_gs.c | 18 drivers/scsi/qla2xxx/qla_mbx.c | 8 drivers/scsi/qla2xxx/qla_nvme.c | 5 drivers/scsi/qla2xxx/qla_os.c | 5 drivers/scsi/qla2xxx/qla_target.c | 2 drivers/scsi/scsi_transport_iscsi.c | 2 drivers/scsi/ufs/ufshcd.c | 14 drivers/spi/spi-stm32.c | 73 +- drivers/target/target_core_internal.h | 1 drivers/target/target_core_transport.c | 7 drivers/target/target_core_user.c | 9 drivers/target/target_core_xcopy.c | 11 drivers/tty/serial/8250/8250_exar.c | 24 drivers/tty/serial/8250/8250_port.c | 9 drivers/tty/serial/amba-pl011.c | 16 drivers/tty/serial/samsung.c | 8 drivers/tty/serial/stm32-usart.c | 2 drivers/tty/vt/vt.c | 5 drivers/tty/vt/vt_ioctl.c | 12 drivers/usb/cdns3/gadget.c | 4 drivers/usb/class/cdc-acm.c | 22 drivers/usb/core/quirks.c | 7 drivers/usb/dwc3/gadget.c | 104 ++- drivers/usb/gadget/function/f_ncm.c | 81 ++ drivers/usb/gadget/function/f_tcm.c | 7 drivers/usb/gadget/u_f.h | 38 - drivers/usb/host/ohci-exynos.c | 5 drivers/usb/host/xhci-debugfs.c | 8 drivers/usb/host/xhci-hub.c | 19 drivers/usb/host/xhci.c | 3 drivers/usb/misc/lvstest.c | 2 drivers/usb/misc/sisusbvga/sisusb.c | 2 drivers/usb/misc/yurex.c | 2 drivers/usb/storage/unusual_devs.h | 2 drivers/usb/storage/unusual_uas.h | 14 drivers/video/fbdev/core/fbcon.c | 25 drivers/video/fbdev/core/fbmem.c | 8 drivers/video/fbdev/core/fbsysfs.c | 4 drivers/video/fbdev/omap2/omapfb/dss/dispc.c | 7 drivers/video/fbdev/omap2/omapfb/dss/dsi.c | 7 drivers/video/fbdev/omap2/omapfb/dss/dss.c | 7 drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c | 5 drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c | 5 drivers/video/fbdev/omap2/omapfb/dss/venc.c | 7 drivers/video/fbdev/ps3fb.c | 5 drivers/xen/events/events_base.c | 16 fs/binfmt_flat.c | 20 fs/btrfs/ctree.h | 4 fs/btrfs/disk-io.c | 1 fs/btrfs/extent-tree.c | 17 fs/btrfs/file.c | 10 fs/btrfs/free-space-cache.c | 2 fs/btrfs/inode.c | 18 fs/btrfs/qgroup.c | 14 fs/btrfs/qgroup.h | 2 fs/btrfs/super.c | 1 fs/btrfs/tree-log.c | 305 +++++----- fs/buffer.c | 9 fs/ceph/file.c | 5 fs/ceph/mds_client.c | 14 fs/ext4/block_validity.c | 8 fs/ext4/super.c | 175 +++-- fs/f2fs/f2fs.h | 4 fs/f2fs/inline.c | 19 fs/f2fs/node.c | 6 fs/f2fs/recovery.c | 10 fs/f2fs/super.c | 5 fs/fs-writeback.c | 83 +- fs/hugetlbfs/inode.c | 6 fs/io_uring.c | 9 fs/jbd2/transaction.c | 26 fs/xfs/libxfs/xfs_trans_inode.c | 2 fs/xfs/xfs_icache.c | 3 fs/xfs/xfs_inode.c | 25 include/linux/efi.h | 4 include/linux/fb.h | 2 include/linux/fs.h | 8 include/linux/netfilter_ipv6.h | 18 include/trace/events/writeback.h | 13 kernel/Makefile | 2 kernel/gen_kheaders.sh | 66 +- kernel/irq/matrix.c | 7 kernel/locking/lockdep_proc.c | 2 kernel/sched/core.c | 81 ++ kernel/sched/cpufreq_schedutil.c | 2 kernel/sched/sched.h | 47 + kernel/trace/blktrace.c | 12 mm/cma.c | 29 mm/mmu_context.c | 7 mm/shuffle.c | 18 mm/vmalloc.c | 2 net/bridge/netfilter/nf_conntrack_bridge.c | 8 net/can/j1939/transport.c | 15 net/core/skbuff.c | 4 net/ipv4/nexthop.c | 5 net/ipv6/ip6_tunnel.c | 10 net/ipv6/netfilter.c | 3 net/qrtr/qrtr.c | 20 net/sched/act_ct.c | 2 net/sctp/stream.c | 6 net/smc/smc_diag.c | 16 net/tipc/netlink_compat.c | 12 scripts/Makefile.lib | 12 scripts/Makefile.package | 8 scripts/package/buildtar | 6 scripts/xz_wrap.sh | 2 sound/pci/cs46xx/cs46xx_lib.c | 2 sound/pci/cs46xx/dsp_spos_scb_lib.c | 2 sound/pci/hda/hda_codec.c | 2 sound/pci/hda/hda_generic.c | 2 sound/pci/hda/hda_intel.c | 2 sound/pci/hda/patch_hdmi.c | 17 sound/pci/hda/patch_realtek.c | 12 sound/pci/hda/patch_sigmatel.c | 2 sound/pci/ice1712/prodigy192.c | 2 sound/pci/oxygen/xonar_dg.c | 2 sound/soc/codecs/wm8958-dsp2.c | 4 sound/soc/img/img-i2s-in.c | 4 sound/soc/img/img-parallel-out.c | 4 sound/soc/tegra/tegra30_ahub.c | 4 sound/soc/tegra/tegra30_i2s.c | 4 sound/usb/quirks-table.h | 34 + tools/testing/selftests/net/icmp_redirect.sh | 2 tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/ebb.c | 2 tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c | 1 tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c | 7 tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c | 2 tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c | 2 231 files changed, 2124 insertions(+), 1013 deletions(-) Abhishek Sahu (1): PCI: qcom: Change duplicate PCI reset to phy reset Aditya Pakki (5): drm/radeon: fix multiple reference count leak omapfb: fix multiple reference count leaks due to pm_runtime_get_sync drm/nouveau/drm/noveau: fix reference count leak in nouveau_fbcon_open drm/nouveau: fix reference count leak in nv50_disp_atomic_commit drm/nouveau: Fix reference count leak in nouveau_connector_detect Adrian Hunter (1): scsi: ufs: Improve interrupt handling for shared interrupts Alaa Hleihel (1): net/sched: act_ct: Fix skb double-free in tcf_ct_handle_fragments() error flow Alain Volmat (1): spi: stm32: always perform registers configuration prior to transfer Alan Stern (3): USB: yurex: Fix bad gfp argument USB: quirks: Ignore duplicate endpoint on Sound Devices MixPre-D usb: storage: Add unusual_uas entry for Sony PSZ drives Alex Deucher (1): drm/amdgpu: Fix buffer overflow in INFO ioctl Alexander Tsoy (1): ALSA: usb-audio: Add capture support for Saffire 6 (USB 1.1) Alexey Kardashevskiy (2): powerpc/xive: Ignore kmemleak false positives powerpc/perf: Fix crashes with generic_compat_pmu & BHRB Alvin Šipraga (1): macvlan: validate setting of multiple remote source MAC addresses Amelie Delaunay (2): spi: stm32: fix fifo threshold level in case of short transfer spi: stm32: fix stm32_spi_prepare_mbr in case of odd clk_rate Andrey Konovalov (1): efi: provide empty efi_enter_virtual_mode implementation Andy Shevchenko (4): mfd: intel-lpss: Add Intel Emmitsburg PCH PCI IDs mfd: intel-lpss: Add Intel Tiger Lake PCH-H PCI IDs i2c: core: Don't fail PRP0001 enumeration when no ID table exist USB: gadget: u_f: Unbreak offset calculation in VLAs Ansuel Smith (2): PCI: qcom: Add missing ipq806x clocks in PCIe driver PCI: qcom: Add missing reset for ipq806x Anthony Koo (1): drm/amd/display: Switch to immediate mode for updating infopackets Antonio Borneo (1): spi: stm32h7: fix race condition at end of transfer Arnd Bergmann (1): powerpc/spufs: add CONFIG_COREDUMP dependency Ashok Raj (1): x86/hotplug: Silence APIC only after all interrupts are migrated Athira Rajeev (1): powerpc/perf: Fix soft lockups due to missed interrupt accounting Aurabindo Pillai (1): drm/amd/display: Add additional config guards for DCN Bodo Stroesser (1): scsi: target: tcmu: Fix crash on ARM during cmd completion Boris Burkov (1): btrfs: detect nocow for swap after snapshot delete Brooke Basile (2): USB: gadget: u_f: add overflow checks to VLA macros USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb() Changming Liu (1): USB: sisusbvga: Fix a potential UB casued by left shifting a negative value Chao Yu (1): f2fs: fix error path in do_recover_data() Chris Wilson (1): locking/lockdep: Fix overflow in presentation of average lock-time Christophe JAILLET (1): usb: gadget: f_tcm: Fix some resource leaks in some error paths Cong Wang (1): tipc: fix uninit skb->data in tipc_nl_compat_dumpit() Cyril Roelandt (1): USB: Ignore UAS for JMicron JMS567 ATA/ATAPI Bridge Dave Chinner (1): xfs: Don't allow logging of XFS_ISTALE inodes David Ahern (1): selftests: disable rp_filter for icmp_redirect.sh David Brazdil (1): KVM: arm64: Fix symbol dependency in __hyp_call_panic_nvhe David Hildenbrand (1): mm/shuffle: don't move pages between zones and don't read garbage memmaps David Laight (1): net: sctp: Fix negotiation of the number of data streams. Denis Efremov (2): kbuild: add variables for compression tools kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables Desnes A. Nunes do Rosario (1): selftests/powerpc: Purge extra count_pmc() calls of ebb selftests Dick Kennedy (1): scsi: lpfc: Fix shost refcount mismatch when deleting vport Ding Hui (1): xhci: Always restore EP_SOFT_CLEAR_TOGGLE even if ep reset failed Ding Xiang (1): drm/xen: fix passing zero to 'PTR_ERR' warning Dmitry Monakhov (1): bfq: fix blkio cgroup leakage v4 Evan Quan (6): drm/amd/powerplay: correct Vega20 cached smu feature state drm/amd/powerplay: correct UVD/VCE PG state on custom pptable uploading drm/amd/pm: correct Vega10 swctf limit setting drm/amd/pm: correct Vega12 swctf limit setting drm/amd/pm: correct Vega20 swctf limit setting drm/amd/pm: correct the thermal alert temperature limit settings Evgeny Novikov (2): media: davinci: vpif_capture: fix potential double free USB: lvtest: return proper error code in probe Filipe Manana (4): btrfs: factor out inode items copy loop from btrfs_log_inode() btrfs: only commit the delayed inode when doing a full fsync btrfs: only commit delayed items at fsync if we are logging a directory btrfs: fix space cache memory leak after transaction abort Florian Westphal (1): netfilter: avoid ipv6 -> nf_defrag_ipv6 module dependency Frank van der Linden (1): arm64: vdso32: make vdso32 install conditional George Kennedy (2): fbcon: prevent user font height or width change from causing potential out-of-bounds access vt_ioctl: change VT_RESIZEX ioctl to check for error return from vc_resize() Greg Kroah-Hartman (1): Linux 5.4.62 Hans Verkuil (1): cec-api: prevent leaking memory through hole in structure Hans de Goede (1): HID: i2c-hid: Always sleep 60ms after I2C_HID_PWR_ON commands Hector Martin (1): ALSA: usb-audio: Update documentation comment for MS2109 quirk Heikki Krogerus (1): device property: Fix the secondary firmware node handling in set_primary_fwnode() Herbert Xu (1): crypto: af_alg - Work around empty control messages without MSG_MORE Holger Assmann (1): serial: stm32: avoid kernel warning on absence of optional IRQ Hou Pu (1): null_blk: fix passing of REQ_FUA flag in null_handle_rq Ikjoon Jang (1): HID: quirks: add NOGET quirk for Logitech GROUP Jan Kara (6): ext4: don't BUG on inconsistent journal feature ext4: handle error of ext4_setup_system_zone() on remount ext4: correctly restore system zone info when remount fails writeback: Protect inode->i_io_list with inode->i_lock writeback: Avoid skipping inode writeback writeback: Fix sync livelock due to b_dirty_time processing Jason Baron (2): EDAC/ie31200: Fallback if host bridge device is already initialized hwmon: (nct7904) Correct divide by 0 Javed Hasan (1): scsi: fcoe: Memory leak fix in fcoe_sysfs_fcf_del() Jia-Ju Bai (1): media: pci: ttpci: av7110: fix possible buffer overflow caused by bad DMA value in debiirq() Jiansong Chen (1): drm/amdgpu/gfx10: refine mgcg setting Jing Xiangfeng (1): scsi: iscsi: Do not put host in iscsi_set_flashnode_param() Josef Bacik (1): btrfs: check the right error variable in btrfs_del_dir_entries_in_log Kai-Heng Feng (5): ALSA: hda/hdmi: Add quirk to force connectivity ALSA: hda/realtek: Fix pin default on Intel NUC 8 Rugged ALSA: hda/hdmi: Use force connectivity quirk on another HP desktop xhci: Do warm-reset when both CAS and XDEV_RESUME are set USB: quirks: Add no-lpm quirk for another Raydium touchscreen Kaige Li (1): ALSA: hda: Add support for Loongson 7A1000 controller Kefeng Wang (1): arm64: Fix __cpu_logical_map undefined issue Keith Busch (1): block: fix get_max_io_size() Li Guifu (1): f2fs: fix use-after-free issue Li Jun (1): usb: host: xhci: fix ep context print mismatch in debugfs Luis Chamberlain (1): blktrace: ensure our debugfs dir exists Lukas Czerner (3): jbd2: make sure jh have b_transaction set in refile/unfile_buffer ext4: handle read only external journal device ext4: handle option set by mount flags correctly Lukas Wunner (2): serial: pl011: Fix oops on -EPROBE_DEFER serial: pl011: Don't leak amba_ports entry on driver register error Mahesh Bandewar (1): ipvlan: fix device features Marc Zyngier (3): PM / devfreq: rk3399_dmc: Fix kernel oops when rockchip,pmu is absent arm64: Move handling of erratum 1418040 into C code arm64: Allow booting of late CPUs affected by erratum 1418040 Marcos Paulo de Souza (1): btrfs: reset compression level for lzo on remount Mark Tomlinson (1): gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY Martin Wilck (1): nvme: multipath: round-robin: fix single non-optimized path case Masahiro Yamada (5): kheaders: remove unneeded 'cat' command piped to 'head' / 'tail' kheaders: optimize md5sum calculation for in-tree builds kheaders: optimize header copy for in-tree builds kheaders: remove the last bashism to allow sh to run it kheaders: explain why include/config/autoconf.h is excluded from md5sum Matthew Wilcox (Oracle) (1): block: Fix page_is_mergeable() for compound pages Mauro Carvalho Chehab (2): EDAC: sb_edac: get rid of unused vars EDAC: skx_common: get rid of unused type var Max Filippov (1): binfmt_flat: revert "binfmt_flat: don't offset the data start" Miaohe Lin (1): net: Fix potential wrong skb->protocol in skb_vlan_untag() Michael Ellerman (1): powerpc/64s: Don't init FSCR_DSCR in __init_FSCR() Mika Kuoppala (1): drm/i915: Fix cmd parser desc matching with masks Mike Christie (2): scsi: target: Fix xcopy sess release leak scsi: fcoe: Fix I/O path allocation Mike Kravetz (2): hugetlbfs: prevent filesystem stacking of hugetlbfs cma: don't quit at first error when activating reserved areas Mike Pozulp (1): ALSA: hda/realtek: Add model alc298-samsung-headphone Mikita Lipski (1): drm/amd/display: Trigger modesets on MST DSC connectors Ming Lei (5): block: respect queue limit of max discard segment block: virtio_blk: fix handling single range discard request blk-mq: insert request not through ->queue_rq into sw/scheduler queue block: loop: set discard granularity and alignment for block device backed loop blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART Navid Emamdoost (4): drm/amdgpu: fix ref count leak in amdgpu_driver_open_kms drm/amd/display: fix ref count leak in amdgpu_drm_ioctl drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config drm/amdgpu/display: fix ref count leak when pm_runtime_get_sync fails Necip Fazil Yildiran (1): net: qrtr: fix usage of idr in port assignment to socket Nicholas Kazlauskas (1): drm/amd/powerplay: Fix hardmins not being sent to SMU for RV Nicolas Saenz Julienne (1): brcmfmac: Set timeout value when configuring power save Nikolay Aleksandrov (1): net: nexthop: don't allow empty NHA_GROUP Nikolay Borisov (1): btrfs: make btrfs_qgroup_check_reserved_leak take btrfs_inode Oleksandr Andrushchenko (1): drm/xen-front: Fix misused IS_ERR_OR_NULL checks Oleksij Rempel (1): can: j1939: transport: j1939_xtp_rx_dat_one(): compare own packets to detect corruptions Paul Cercueil (2): gpu/drm: ingenic: Use the plane's src_[x,y] to configure DMA length drm/ingenic: Fix incorrect assumption about plane->index Peilin Ye (2): net/smc: Prevent kernel-infoleak in __smc_diag_dump() HID: hiddev: Fix slab-out-of-bounds write in hiddev_ioctl_usage() Peng Fan (1): mips/vdso: Fix resource leaks in genvdso.c Peter Zijlstra (1): mm: fix kthread_use_mm() vs TLB invalidate Qais Yousef (2): sched/uclamp: Protect uclamp fast path code with static key sched/uclamp: Fix a deadlock when enabling uclamp static key Qiushi Wu (5): ASoC: img: Fix a reference count leak in img_i2s_in_set_fmt ASoC: img-parallel-out: Fix a reference count leak ASoC: tegra: Fix reference count leaks. drm/amdkfd: Fix reference count leaks. PCI: Fix pci_create_slot() reference count leak Qu Wenruo (1): btrfs: file: reserve qgroup space after the hole punch range is locked Quinn Tran (2): scsi: qla2xxx: Fix login timeout scsi: qla2xxx: Fix null pointer access during disconnect from subsystem Rafael J. Wysocki (2): cpufreq: intel_pstate: Fix EPP setting via sysfs in active mode PM: sleep: core: Fix the handling of pending runtime resume requests Randy Dunlap (1): ALSA: pci: delete repeated words in comments Reto Schneider (1): rtlwifi: rtl8192cu: Prevent leaking urb Rob Clark (1): drm/msm/adreno: fix updating ring fence Robin Murphy (1): iommu/iova: Don't BUG on invalid PFNs Sasha Levin (3): usb: cdns3: gadget: always zeroed TRB buffer when enable endpoint s390/numa: set node distance to LOCAL_DISTANCE mm/vunmap: add cond_resched() in vunmap_pmd_range Saurav Kashyap (2): scsi: qla2xxx: Check if FW supports MQ before enabling Revert "scsi: qla2xxx: Fix crash on qla2x00_mailbox_command" Sean Young (1): media: gpio-ir-tx: improve precision of transmitted signal due to scheduling Sergey Senozhatsky (1): serial: 8250: change lock order in serial8250_do_startup() Shay Agroskin (1): net: ena: Make missed_tx stat incremental Stanley Chu (2): scsi: ufs: Fix possible infinite loop in ufshcd_hold scsi: ufs: Clean up completed request without interrupt notification Stephan Gerhold (1): arm64: dts: qcom: msm8916: Pull down PDM GPIOs during sleep Stylon Wang (1): drm/amd/display: Fix dmesg warning from setting abm level Sumera Priyadarsini (1): net: gianfar: Add of_node_put() before goto statement Sylwester Nawrocki (1): ASoC: wm8994: Avoid attempts to read unreadable registers Tamseel Shams (1): serial: samsung: Removes the IRQ not found warning Tang Bin (1): usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe() Tetsuo Handa (2): vt: defer kfree() of vc_screenbuf in vc_do_resize() fbmem: pull fbcon_update_vcs() out of fb_set_var() Thinh Nguyen (4): usb: uas: Add quirk for PNY Pro Elite usb: dwc3: gadget: Don't setup more than requested usb: dwc3: gadget: Fix handling ZLP usb: dwc3: gadget: Handle ZLP for sg requests Thomas Gleixner (2): XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information. genirq/matrix: Deal with the sillyness of for_each_cpu() on UP Tianjia Zhang (1): nvme-fc: Fix wrong return value in __nvme_fc_init_request() Tobias Schramm (1): spi: stm32: clear only asserted irq flags on interrupt Tom Rix (1): USB: cdc-acm: rework notification_buffer resizing Tony Luck (1): EDAC/{i7core,sb,pnd2,skx}: Fix error event severity Valmer Huhn (1): serial: 8250_exar: Fix number of ports for Commtech PCIe cards Vineeth Vijayan (1): s390/cio: add cond_resched() in the slow_eval_known_fn() loop Wolfram Sang (1): i2c: rcar: in slave mode, clear NACK earlier Xianting Tian (1): fs: prevent BUG_ON in submit_bh_wbc() Xin Yin (1): io_uring: Fix NULL pointer dereference in io_sq_wq_submit_work() Xiubo Li (2): ceph: fix potential mdsc use-after-free crash ceph: do not access the kiocb after aio requests Yangbo Lu (1): ARM: dts: ls1021a: output PPS signal on FIPER2 Yangtao Li (2): PM / devfreq: rk3399_dmc: Add missing of_node_put() PM / devfreq: rk3399_dmc: Disable devfreq-event device when fails Yufen Yu (1): blkcg: fix memleak for iolatency Yunfeng Ye (1): mm/cma.c: switch to bitmap_zalloc() for cma bitmap allocation Zhi Chen (1): Revert "ath10k: fix DMA related firmware crashes on multiple devices" qiuguorui1 (1): irqchip/stm32-exti: Avoid losing interrupts due to clearing pending bits by mistake zhangyi (F) (1): jbd2: abort journal if free a async write error metadata buffer

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Linux-stable-mirror September 2020