June 2021 - Linux-stable-mirror

Regression after 5.7.19 causing major freezes on CPU loads

by Adam Edge

Hello, After I've upgraded from 5.7.11 (didn't have access to this machine for about 10 months) to 5.12.10, I've noticed that anytime I used all my cores to, for example, compile a project, the system would degrade significantly in performance and applications would start to stutter. Compiles are also about 3-4x slower on kernels with the regression vs. without. After debugging this for the past 24 hours or so, I've narrowed it down to a change between 5.7.19 and 5.8.1. Sadly, bisect does not help, because trying to run any of the 5.8 RC kernels causes the kernel to be stuck before init, without any apparent errors on the screen (and I don't have a serial cable to dump the kernel output to). I'm listing all the information I know and my system information below. Reproduction steps (dunno if this helps, but): 1. Boot with kernel with the regression 2. Do something that uses all cores, like compiling the Linux kernel 3. Observe long compile times and stuttering applications (which doesn't happen even on full load with a working kernel) Regression between kernel versions: 5.7 - working 5.7.11 - working 5.7.19 - working 5.8.1 - broken 5.8.18 - broken 5.12.10 - broken 8ecfa36cd4db3275bf3b6c6f32c7e3c6bb537de2 (master on 2021-06-13) - broken System information: Gentoo Linux 17.1 amd64 CPU info: processor : 7 vendor_id : GenuineIntel cpu family : 6 model : 60 model name : Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz stepping : 3 microcode : 0x27 cpu MHz : 2042.008 cache size : 8192 KB physical id : 0 siblings : 8 core id : 3 cpu cores : 4 apicid : 7 initial apicid : 7 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt dtherm ida arat pln pts md_clear flush_l1d vmx flags : vnmi preemption_timer invvpid ept_x_only ept_ad ept_1gb flexpriority tsc_offset vtpr mtf vapic ept vpid unrestricted_guest ple shadow_vmcs bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit srbds bogomips : 7199.96 clflush size : 64 cache_alignment : 64 address sizes : 39 bits physical, 48 bits virtual power management: RAM: 16GiB GPU: VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Redwood XT [Radeon HD 5670/5690/5730] cat /proc/sys/kernel/tainted: 0 Thanks in advance. Best Regards, Adam Edge

4 years

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[PATCH 4.9 00/42] 4.9.273-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.9.273 release. There are 42 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Wed, 16 Jun 2021 10:26:30 +0000. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.273-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.9.273-rc1 Liangyan <liangyan.peng(a)linux.alibaba.com> tracing: Correct the length check which causes memory corruption Steven Rostedt (VMware) <rostedt(a)goodmis.org> ftrace: Do not blindly read the ip address in ftrace_bug() Ming Lei <ming.lei(a)redhat.com> scsi: core: Only put parent device if host state differs from SHOST_CREATED Ming Lei <ming.lei(a)redhat.com> scsi: core: Fix error handling of scsi_host_alloc() Dai Ngo <dai.ngo(a)oracle.com> NFSv4: nfs4_proc_set_acl needs to restore NFS_CAP_UIDGID_NOMAP on error. Paolo Bonzini <pbonzini(a)redhat.com> kvm: fix previous commit for 32-bit builds Leo Yan <leo.yan(a)linaro.org> perf session: Correct buffer copying when peeking events Dan Carpenter <dan.carpenter(a)oracle.com> NFS: Fix a potential NULL dereference in nfs_get_client() Marco Elver <elver(a)google.com> perf: Fix data race between pin_count increment/decrement Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> regulator: core: resolve supply for boot-on/always-on regulators Maciej Żenczykowski <maze(a)google.com> usb: fix various gadget panics on 10gbps cabling Maciej Żenczykowski <maze(a)google.com> usb: fix various gadgets null ptr deref on 10gbps cabling. Linyu Yuan <linyyuan(a)codeaurora.com> usb: gadget: eem: fix wrong eem header operation Johan Hovold <johan(a)kernel.org> USB: serial: quatech2: fix control-request directions Alexandre GRIVEAUX <agriveaux(a)deutnet.info> USB: serial: omninet: add device id for Zyxel Omni 56K Plus George McCollister <george.mccollister(a)gmail.com> USB: serial: ftdi_sio: add NovaTech OrionMX product ID Marian-Cristian Rotariu <marian.c.rotariu(a)gmail.com> usb: dwc3: ep0: fix NULL pointer exception Maciej Żenczykowski <maze(a)google.com> USB: f_ncm: ncm_bitrate (speed) is unsigned Alexander Kuznetsov <wwfq(a)yandex-team.ru> cgroup1: don't allow '\n' in renaming Ritesh Harjani <riteshh(a)linux.ibm.com> btrfs: return value from btrfs_mark_extent_written() in case of error Paolo Bonzini <pbonzini(a)redhat.com> kvm: avoid speculation-based attacks from out-of-range memslot accesses Desmond Cheong Zhi Xi <desmondcheongzx(a)gmail.com> drm: Lock pointer access in drm_master_release() Chris Packham <chris.packham(a)alliedtelesis.co.nz> i2c: mpc: implement erratum A-004447 workaround Chris Packham <chris.packham(a)alliedtelesis.co.nz> i2c: mpc: Make use of i2c_recover_bus() Chris Packham <chris.packham(a)alliedtelesis.co.nz> powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P1010 i2c controllers Chris Packham <chris.packham(a)alliedtelesis.co.nz> powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers Jiapeng Chong <jiapeng.chong(a)linux.alibaba.com> bnx2x: Fix missing error code in bnx2x_iov_init_one() Tiezhu Yang <yangtiezhu(a)loongson.cn> MIPS: Fix kernel hang under FUNCTION_GRAPH_TRACER and PREEMPT_TRACER Saubhik Mukherjee <saubhik.mukherjee(a)gmail.com> net: appletalk: cops: Fix data race in cops_probe1 Zong Li <zong.li(a)sifive.com> net: macb: ensure the device is available before accessing GEMGXL control registers Dmitry Bogdanov <d.bogdanov(a)yadro.com> scsi: target: qla2xxx: Wait for stop_phase1 at WWN removal Matt Wang <wwentao(a)vmware.com> scsi: vmw_pvscsi: Set correct residual data length Zheyu Ma <zheyuma97(a)gmail.com> net/qla3xxx: fix schedule while atomic in ql_sem_spinlock Sergey Senozhatsky <senozhatsky(a)chromium.org> wq: handle VM suspension in stall detection Shakeel Butt <shakeelb(a)google.com> cgroup: disable controllers at parse time Dan Carpenter <dan.carpenter(a)oracle.com> net: mdiobus: get rid of a BUG_ON() Johannes Berg <johannes.berg(a)intel.com> netlink: disable IRQs for netlink_lock_table() Johannes Berg <johannes.berg(a)intel.com> bonding: init notify_work earlier to avoid uninitialized use Zheyu Ma <zheyuma97(a)gmail.com> isdn: mISDN: netjet: Fix crash in nj_probe: Zou Wei <zou_wei(a)huawei.com> ASoC: sti-sas: add missing MODULE_DEVICE_TABLE Jeimon <jjjinmeng.zhou(a)gmail.com> net/nfc/rawsock.c: fix a permission check bug Kees Cook <keescook(a)chromium.org> proc: Track /proc/$pid/attr/ opener mm_struct ------------- Diffstat: Makefile | 4 +- arch/mips/lib/mips-atomic.c | 12 +-- arch/powerpc/boot/dts/fsl/p1010si-post.dtsi | 8 ++ arch/powerpc/boot/dts/fsl/p2041si-post.dtsi | 16 ++++ drivers/gpu/drm/drm_auth.c | 3 +- drivers/i2c/busses/i2c-mpc.c | 95 ++++++++++++++++++++++- drivers/isdn/hardware/mISDN/netjet.c | 1 - drivers/net/appletalk/cops.c | 4 +- drivers/net/bonding/bond_main.c | 2 +- drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 4 +- drivers/net/ethernet/cadence/macb.c | 3 + drivers/net/ethernet/qlogic/qla3xxx.c | 2 +- drivers/net/phy/mdio_bus.c | 3 +- drivers/regulator/core.c | 6 ++ drivers/scsi/hosts.c | 25 +++--- drivers/scsi/qla2xxx/qla_target.c | 2 + drivers/scsi/vmw_pvscsi.c | 8 +- drivers/usb/dwc3/ep0.c | 3 + drivers/usb/gadget/config.c | 8 ++ drivers/usb/gadget/function/f_ecm.c | 2 +- drivers/usb/gadget/function/f_eem.c | 6 +- drivers/usb/gadget/function/f_loopback.c | 2 +- drivers/usb/gadget/function/f_ncm.c | 2 +- drivers/usb/gadget/function/f_printer.c | 3 +- drivers/usb/gadget/function/f_rndis.c | 2 +- drivers/usb/gadget/function/f_serial.c | 2 +- drivers/usb/gadget/function/f_sourcesink.c | 3 +- drivers/usb/gadget/function/f_subset.c | 2 +- drivers/usb/gadget/function/f_tcm.c | 3 +- drivers/usb/serial/ftdi_sio.c | 1 + drivers/usb/serial/ftdi_sio_ids.h | 1 + drivers/usb/serial/omninet.c | 2 + drivers/usb/serial/quatech2.c | 6 +- fs/btrfs/file.c | 4 +- fs/nfs/client.c | 2 +- fs/nfs/nfs4proc.c | 8 ++ fs/proc/base.c | 9 ++- include/linux/kvm_host.h | 11 ++- kernel/cgroup.c | 17 ++-- kernel/events/core.c | 2 + kernel/trace/ftrace.c | 8 +- kernel/trace/trace.c | 2 +- kernel/workqueue.c | 12 ++- net/netlink/af_netlink.c | 6 +- net/nfc/rawsock.c | 2 +- sound/soc/codecs/sti-sas.c | 1 + tools/perf/util/session.c | 1 + 47 files changed, 266 insertions(+), 65 deletions(-)

4 years

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[withdrawn] mm-page_vma_mapped_walk-use-pmd_read_atomic.patch removed from -mm tree

by akpm＠linux-foundation.org

The patch titled Subject: mm: page_vma_mapped_walk(): use pmd_read_atomic() has been removed from the -mm tree. Its filename was mm-page_vma_mapped_walk-use-pmd_read_atomic.patch This patch was dropped because it was withdrawn ------------------------------------------------------ From: Hugh Dickins <hughd(a)google.com> Subject: mm: page_vma_mapped_walk(): use pmd_read_atomic() page_vma_mapped_walk() cleanup: use pmd_read_atomic() with barrier() instead of READ_ONCE() for pmde: some architectures (e.g. i386 with PAE) have a multi-word pmd entry, for which READ_ONCE() is not good enough. Link: https://lkml.kernel.org/r/594c1f0-d396-5346-1f36-606872cddb18@google.com Signed-off-by: Hugh Dickins <hughd(a)google.com> Cc: Alistair Popple <apopple(a)nvidia.com> Cc: "Kirill A. Shutemov" <kirill.shutemov(a)linux.intel.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Peter Xu <peterx(a)redhat.com> Cc: Ralph Campbell <rcampbell(a)nvidia.com> Cc: Wang Yugui <wangyugui(a)e16-tech.com> Cc: Will Deacon <will(a)kernel.org> Cc: Yang Shi <shy828301(a)gmail.com> Cc: Zi Yan <ziy(a)nvidia.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/page_vma_mapped.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/mm/page_vma_mapped.c~mm-page_vma_mapped_walk-use-pmd_read_atomic +++ a/mm/page_vma_mapped.c @@ -182,13 +182,16 @@ restart: pud = pud_offset(p4d, pvmw->address); if (!pud_present(*pud)) return false; + pvmw->pmd = pmd_offset(pud, pvmw->address); /* * Make sure the pmd value isn't cached in a register by the * compiler and used as a stale value after we've observed a * subsequent update. */ - pmde = READ_ONCE(*pvmw->pmd); + pmde = pmd_read_atomic(pvmw->pmd); + barrier(); + if (pmd_trans_huge(pmde) || is_pmd_migration_entry(pmde)) { pvmw->ptl = pmd_lock(mm, pvmw->pmd); if (likely(pmd_trans_huge(*pvmw->pmd))) { _ Patches currently in -mm which might be from hughd(a)google.com are mm-thp-fix-__split_huge_pmd_locked-on-shmem-migration-entry.patch mm-thp-make-is_huge_zero_pmd-safe-and-quicker.patch mm-thp-try_to_unmap-use-ttu_sync-for-safe-splitting.patch mm-thp-fix-vma_address-if-virtual-address-below-file-offset.patch mm-thp-unmap_mapping_page-to-fix-thp-truncate_cleanup_page.patch mm-page_vma_mapped_walk-use-page-for-pvmw-page.patch mm-page_vma_mapped_walk-settle-pagehuge-on-entry.patch mm-page_vma_mapped_walk-use-pmde-for-pvmw-pmd.patch mm-page_vma_mapped_walk-prettify-pvmw_migration-block.patch mm-page_vma_mapped_walk-crossing-page-table-boundary.patch mm-page_vma_mapped_walk-add-a-level-of-indentation.patch mm-page_vma_mapped_walk-use-goto-instead-of-while-1.patch mm-page_vma_mapped_walk-get-vma_address_end-earlier.patch mm-thp-fix-page_vma_mapped_walk-if-thp-mapped-by-ptes.patch mm-thp-another-pvmw_sync-fix-in-page_vma_mapped_walk.patch mm-futex-fix-shared-futex-pgoff-on-shmem-huge-page.patch mm-thp-remap_page-is-only-needed-on-anonymous-thp.patch mm-hwpoison_user_mappings-try_to_unmap-with-ttu_sync.patch

4 years

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+ mm-gup-fix-try_grab_compound_head-race-with-split_huge_page.patch added to -mm tree

by akpm＠linux-foundation.org

The patch titled Subject: mm/gup: fix try_grab_compound_head() race with split_huge_page() has been added to the -mm tree. Its filename is mm-gup-fix-try_grab_compound_head-race-with-split_huge_page.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-gup-fix-try_grab_compound_head… and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-gup-fix-try_grab_compound_head… 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: Jann Horn <jannh(a)google.com> Subject: mm/gup: fix try_grab_compound_head() race with split_huge_page() try_grab_compound_head() is used to grab a reference to a page from get_user_pages_fast(), which is only protected against concurrent freeing of page tables (via local_irq_save()), but not against concurrent TLB flushes, freeing of data pages, or splitting of compound pages. Because no reference is held to the page when try_grab_compound_head() is called, the page may have been freed and reallocated by the time its refcount has been elevated; therefore, once we're holding a stable reference to the page, the caller re-checks whether the PTE still points to the same page (with the same access rights). The problem is that try_grab_compound_head() has to grab a reference on the head page; but between the time we look up what the head page is and the time we actually grab a reference on the head page, the compound page may have been split up (either explicitly through split_huge_page() or by freeing the compound page to the buddy allocator and then allocating its individual order-0 pages). If that happens, get_user_pages_fast() may end up returning the right page but lifting the refcount on a now-unrelated page, leading to use-after-free of pages. To fix it: Re-check whether the pages still belong together after lifting the refcount on the head page. Move anything else that checks compound_head(page) below the refcount increment. This can't actually happen on bare-metal x86 (because there, disabling IRQs locks out remote TLB flushes), but it can happen on virtualized x86 (e.g. under KVM) and probably also on arm64. The race window is pretty narrow, and constantly allocating and shattering hugepages isn't exactly fast; for now I've only managed to reproduce this in an x86 KVM guest with an artificially widened timing window (by adding a loop that repeatedly calls `inl(0x3f8 + 5)` in `try_get_compound_head()` to force VM exits, so that PV TLB flushes are used instead of IPIs). As requested on the list, also replace the existing VM_BUG_ON_PAGE() with a warning and bailout. Since the existing code only performed the BUG_ON check on DEBUG_VM kernels, ensure that the new code also only performs the check under that configuration - I don't want to mix two logically separate changes together too much. The macro VM_WARN_ON_ONCE_PAGE() doesn't return a value on !DEBUG_VM, so wrap the whole check in an #ifdef block. An alternative would be to change the VM_WARN_ON_ONCE_PAGE() definition for !DEBUG_VM such that it always returns false, but since that would differ from the behavior of the normal WARN macros, it might be too confusing for readers. Link: https://lkml.kernel.org/r/20210615012014.1100672-1-jannh@google.com Fixes: 7aef4172c795 ("mm: handle PTE-mapped tail pages in gerneric fast gup implementaiton") Signed-off-by: Jann Horn <jannh(a)google.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Kirill A. Shutemov <kirill(a)shutemov.name> Cc: John Hubbard <jhubbard(a)nvidia.com> Cc: Jan Kara <jack(a)suse.cz> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/gup.c | 58 +++++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 43 insertions(+), 15 deletions(-) --- a/mm/gup.c~mm-gup-fix-try_grab_compound_head-race-with-split_huge_page +++ a/mm/gup.c @@ -44,6 +44,23 @@ static void hpage_pincount_sub(struct pa atomic_sub(refs, compound_pincount_ptr(page)); } +/* Equivalent to calling put_page() @refs times. */ +static void put_page_refs(struct page *page, int refs) +{ +#ifdef CONFIG_DEBUG_VM + if (VM_WARN_ON_ONCE_PAGE(page_ref_count(page) < refs, page)) + return; +#endif + + /* + * Calling put_page() for each ref is unnecessarily slow. Only the last + * ref needs a put_page(). + */ + if (refs > 1) + page_ref_sub(page, refs - 1); + put_page(page); +} + /* * Return the compound head page with ref appropriately incremented, * or NULL if that failed. @@ -56,6 +73,21 @@ static inline struct page *try_get_compo return NULL; if (unlikely(!page_cache_add_speculative(head, refs))) return NULL; + + /* + * At this point we have a stable reference to the head page; but it + * could be that between the compound_head() lookup and the refcount + * increment, the compound page was split, in which case we'd end up + * holding a reference on a page that has nothing to do with the page + * we were given anymore. + * So now that the head page is stable, recheck that the pages still + * belong together. + */ + if (unlikely(compound_head(page) != head)) { + put_page_refs(head, refs); + return NULL; + } + return head; } @@ -96,6 +128,14 @@ __maybe_unused struct page *try_grab_com return NULL; /* + * CAUTION: Don't use compound_head() on the page before this + * point, the result won't be stable. + */ + page = try_get_compound_head(page, refs); + if (!page) + return NULL; + + /* * When pinning a compound page of order > 1 (which is what * hpage_pincount_available() checks for), use an exact count to * track it, via hpage_pincount_add/_sub(). @@ -103,15 +143,10 @@ __maybe_unused struct page *try_grab_com * However, be sure to *also* increment the normal page refcount * field at least once, so that the page really is pinned. */ - if (!hpage_pincount_available(page)) - refs *= GUP_PIN_COUNTING_BIAS; - - page = try_get_compound_head(page, refs); - if (!page) - return NULL; - if (hpage_pincount_available(page)) hpage_pincount_add(page, refs); + else + page_ref_add(page, refs * (GUP_PIN_COUNTING_BIAS - 1)); mod_node_page_state(page_pgdat(page), NR_FOLL_PIN_ACQUIRED, orig_refs); @@ -135,14 +170,7 @@ static void put_compound_head(struct pag refs *= GUP_PIN_COUNTING_BIAS; } - VM_BUG_ON_PAGE(page_ref_count(page) < refs, page); - /* - * Calling put_page() for each ref is unnecessarily slow. Only the last - * ref needs a put_page(). - */ - if (refs > 1) - page_ref_sub(page, refs - 1); - put_page(page); + put_page_refs(page, refs); } /** _ Patches currently in -mm which might be from jannh(a)google.com are mm-gup-fix-try_grab_compound_head-race-with-split_huge_page.patch

4 years

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[PATCH 5.10 000/131] 5.10.44-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 5.10.44 release. There are 131 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Wed, 16 Jun 2021 10:26:30 +0000. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.10.44-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 5.10.44-rc1 Liangyan <liangyan.peng(a)linux.alibaba.com> tracing: Correct the length check which causes memory corruption Ming Lei <ming.lei(a)redhat.com> scsi: core: Only put parent device if host state differs from SHOST_CREATED Ming Lei <ming.lei(a)redhat.com> scsi: core: Put .shost_dev in failure path if host state changes to RUNNING Ming Lei <ming.lei(a)redhat.com> scsi: core: Fix failure handling of scsi_add_host_with_dma() Ming Lei <ming.lei(a)redhat.com> scsi: core: Fix error handling of scsi_host_alloc() Dai Ngo <dai.ngo(a)oracle.com> NFSv4: nfs4_proc_set_acl needs to restore NFS_CAP_UIDGID_NOMAP on error. Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4: Fix second deadlock in nfs4_evict_inode() Anna Schumaker <Anna.Schumaker(a)Netapp.com> NFS: Fix use-after-free in nfs4_init_client() Paolo Bonzini <pbonzini(a)redhat.com> kvm: fix previous commit for 32-bit builds Leo Yan <leo.yan(a)linaro.org> perf session: Correct buffer copying when peeking events Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4: Fix deadlock between nfs4_evict_inode() and nfs4_opendata_get_inode() Dan Carpenter <dan.carpenter(a)oracle.com> NFS: Fix a potential NULL dereference in nfs_get_client() Alaa Hleihel <alaa(a)nvidia.com> IB/mlx5: Fix initializing CQ fragments buffer Sean Christopherson <seanjc(a)google.com> KVM: x86: Ensure liveliness of nested VM-Enter fail tracepoint message CodyYao-oc <CodyYao-oc(a)zhaoxin.com> x86/nmi_watchdog: Fix old-style NMI watchdog regression on old Intel CPUs Dietmar Eggemann <dietmar.eggemann(a)arm.com> sched/fair: Fix util_est UTIL_AVG_UNCHANGED handling Vincent Guittot <vincent.guittot(a)linaro.org> sched/fair: Make sure to update tg contrib for blocked load Vincent Guittot <vincent.guittot(a)linaro.org> sched/fair: Keep load_avg and load_sum synced Marco Elver <elver(a)google.com> perf: Fix data race between pin_count increment/decrement Srinivas Kandagatla <srinivas.kandagatla(a)linaro.org> gpio: wcd934x: Fix shift-out-of-bounds error Yang Li <yang.lee(a)linux.alibaba.com> phy: ti: Fix an error code in wiz_probe() Jerome Brunet <jbrunet(a)baylibre.com> ASoC: meson: gx-card: fix sound-dai dt schema Kefeng Wang <wangkefeng.wang(a)huawei.com> ASoC: core: Fix Null-point-dereference in fmt_single_name() Wang Wensheng <wangwensheng4(a)huawei.com> phy: cadence: Sierra: Fix error return code in cdns_sierra_phy_probe() Zhen Lei <thunder.leizhen(a)huawei.com> tools/bootconfig: Fix error return code in apply_xbc() Nathan Chancellor <nathan(a)kernel.org> vmlinux.lds.h: Avoid orphan section with !SMP Arnd Bergmann <arnd(a)arndb.de> ARM: cpuidle: Avoid orphan section warning Shay Drory <shayd(a)nvidia.com> RDMA/mlx4: Do not map the core_clock page to user space unless enabled Kamal Heib <kamalheib1(a)gmail.com> RDMA/ipoib: Fix warning caused by destroying non-initial netns Jonathan Marek <jonathan(a)marek.ca> drm/msm/a6xx: avoid shadow NULL reference in failure path Jonathan Marek <jonathan(a)marek.ca> drm/msm/a6xx: update/fix CP_PROTECT initialization Jonathan Marek <jonathan(a)marek.ca> drm/msm/a6xx: fix incorrectly set uavflagprd_inv field for A650 Linus Walleij <linus.walleij(a)linaro.org> drm/mcde: Fix off by 10^3 in calculation Bjorn Andersson <bjorn.andersson(a)linaro.org> usb: typec: mux: Fix copy-paste mistake in typec_mux_match Wesley Cheng <wcheng(a)codeaurora.org> usb: dwc3: gadget: Disable gadget IRQ during pullup disable Chen Li <chenli(a)uniontech.com> phy: usb: Fix misuse of IS_ENABLED Axel Lin <axel.lin(a)ingics.com> regulator: rtmv20: Fix .set_current_limit/.get_current_limit callbacks Axel Lin <axel.lin(a)ingics.com> regulator: bd71828: Fix .n_voltages settings Axel Lin <axel.lin(a)ingics.com> regulator: fan53880: Fix missing n_voltages setting Matti Vaittinen <matti.vaittinen(a)fi.rohmeurope.com> regulator: bd718x7: Fix the BUCK7 voltage setting on BD71837 Dmitry Osipenko <digetx(a)gmail.com> regulator: max77620: Use device_set_of_node_from_dev() Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> regulator: core: resolve supply for boot-on/always-on regulators Li Jun <jun.li(a)nxp.com> usb: typec: tcpm: cancel frs hrtimer when unregister tcpm port Li Jun <jun.li(a)nxp.com> usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port Maciej Żenczykowski <maze(a)google.com> usb: fix various gadget panics on 10gbps cabling Maciej Żenczykowski <maze(a)google.com> usb: fix various gadgets null ptr deref on 10gbps cabling. Linyu Yuan <linyyuan(a)codeaurora.com> usb: gadget: eem: fix wrong eem header operation Stefan Agner <stefan(a)agner.ch> USB: serial: cp210x: fix alternate function for CP2102N QFN20 Johan Hovold <johan(a)kernel.org> USB: serial: quatech2: fix control-request directions Alexandre GRIVEAUX <agriveaux(a)deutnet.info> USB: serial: omninet: add device id for Zyxel Omni 56K Plus George McCollister <george.mccollister(a)gmail.com> USB: serial: ftdi_sio: add NovaTech OrionMX product ID Wesley Cheng <wcheng(a)codeaurora.org> usb: gadget: f_fs: Ensure io_completion_wq is idle during unbind Andy Shevchenko <andy.shevchenko(a)gmail.com> usb: typec: intel_pmc_mux: Add missed error check for devm_ioremap_resource() Andy Shevchenko <andy.shevchenko(a)gmail.com> usb: typec: intel_pmc_mux: Put fwnode in error case during ->probe() Mayank Rana <mrana(a)codeaurora.org> usb: typec: ucsi: Clear PPM capability data in ucsi_init() error path Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> usb: typec: wcove: Use LE to CPU conversion when accessing msg->header Thomas Petazzoni <thomas.petazzoni(a)bootlin.com> usb: musb: fix MUSB_QUIRK_B_DISCONNECT_99 handling Marian-Cristian Rotariu <marian.c.rotariu(a)gmail.com> usb: dwc3: ep0: fix NULL pointer exception Jack Pham <jackp(a)codeaurora.org> usb: dwc3: debugfs: Add and remove endpoint dirs dynamically Jack Pham <jackp(a)codeaurora.org> usb: dwc3: gadget: Bail from dwc3_gadget_exit() if dwc->gadget is NULL Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> usb: dwc3: meson-g12a: Disable the regulator in the error handling path of the probe Neil Armstrong <narmstrong(a)baylibre.com> usb: dwc3-meson-g12a: fix usb2 PHY glue init when phy0 is disabled Kyle Tso <kyletso(a)google.com> usb: pd: Set PD_T_SINK_WAIT_CAP to 310ms Maciej Żenczykowski <maze(a)google.com> usb: f_ncm: only first packet of aggregate needs to start timer Maciej Żenczykowski <maze(a)google.com> USB: f_ncm: ncm_bitrate (speed) is unsigned Geert Uytterhoeven <geert+renesas(a)glider.be> mmc: renesas_sdhi: Fix HS400 on R-Car M3-W+ Wolfram Sang <wsa+renesas(a)sang-engineering.com> mmc: renesas_sdhi: abort tuning when timeout detected Steven Rostedt (VMware) <rostedt(a)goodmis.org> ftrace: Do not blindly read the ip address in ftrace_bug() Alexander Kuznetsov <wwfq(a)yandex-team.ru> cgroup1: don't allow '\n' in renaming Nikolay Borisov <nborisov(a)suse.com> btrfs: promote debugging asserts to full-fledged checks in validate_super Ritesh Harjani <riteshh(a)linux.ibm.com> btrfs: return value from btrfs_mark_extent_written() in case of error Xiao Ni <xni(a)redhat.com> async_xor: check src_offs is not NULL before updating it Wenli Looi <wlooi(a)ucalgary.ca> staging: rtl8723bs: Fix uninitialized variables Paolo Bonzini <pbonzini(a)redhat.com> kvm: avoid speculation-based attacks from out-of-range memslot accesses Lai Jiangshan <laijs(a)linux.alibaba.com> KVM: X86: MMU: Use the correct inherited permissions to get shadow page Kan Liang <kan.liang(a)linux.intel.com> perf/x86/intel/uncore: Fix M2M event umask for Ice Lake server Desmond Cheong Zhi Xi <desmondcheongzx(a)gmail.com> drm: Lock pointer access in drm_master_release() Desmond Cheong Zhi Xi <desmondcheongzx(a)gmail.com> drm: Fix use-after-free read in drm_getunique() Zhang Rui <rui.zhang(a)intel.com> Revert "ACPI: sleep: Put the FACS table after using it" Lukas Wunner <lukas(a)wunner.de> spi: bcm2835: Fix out-of-bounds access with more than 4 slaves Jeremy Szu <jeremy.szu(a)canonical.com> ALSA: hda/realtek: fix mute/micmute LEDs for HP ZBook Power G8 Jeremy Szu <jeremy.szu(a)canonical.com> ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook 840 Aero G8 Jeremy Szu <jeremy.szu(a)canonical.com> ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP EliteBook x360 1040 G8 Jeremy Szu <jeremy.szu(a)canonical.com> ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP Elite Dragonfly G2 Hui Wang <hui.wang(a)canonical.com> ALSA: hda/realtek: headphone and mic don't work on an Acer laptop Takashi Sakamoto <o-takashi(a)sakamocchi.jp> ALSA: firewire-lib: fix the context to call snd_pcm_stop_xrun() Takashi Iwai <tiwai(a)suse.de> ALSA: seq: Fix race of snd_seq_timer_open() Chris Packham <chris.packham(a)alliedtelesis.co.nz> i2c: mpc: implement erratum A-004447 workaround Chris Packham <chris.packham(a)alliedtelesis.co.nz> i2c: mpc: Make use of i2c_recover_bus() Lukas Wunner <lukas(a)wunner.de> spi: Cleanup on failure of initial setup Saravana Kannan <saravanak(a)google.com> spi: Don't have controller clean up spi device before driver unbind Chris Packham <chris.packham(a)alliedtelesis.co.nz> powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P1010 i2c controllers Chris Packham <chris.packham(a)alliedtelesis.co.nz> powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers Sagi Grimberg <sagi(a)grimberg.me> nvmet: fix false keep-alive timeout when a controller is torn down Sagi Grimberg <sagi(a)grimberg.me> nvme-tcp: remove incorrect Kconfig dep in BLK_DEV_NVME Jiapeng Chong <jiapeng.chong(a)linux.alibaba.com> bnx2x: Fix missing error code in bnx2x_iov_init_one() John Keeping <john(a)metanate.com> dm verity: fix require_signatures module_param permissions Tiezhu Yang <yangtiezhu(a)loongson.cn> MIPS: Fix kernel hang under FUNCTION_GRAPH_TRACER and PREEMPT_TRACER Hannes Reinecke <hare(a)suse.de> nvme-fabrics: decode host pathing error for connect George McCollister <george.mccollister(a)gmail.com> net: dsa: microchip: enable phy errata workaround on 9567 Saubhik Mukherjee <saubhik.mukherjee(a)gmail.com> net: appletalk: cops: Fix data race in cops_probe1 Zong Li <zong.li(a)sifive.com> net: macb: ensure the device is available before accessing GEMGXL control registers Dmitry Bogdanov <d.bogdanov(a)yadro.com> scsi: target: qla2xxx: Wait for stop_phase1 at WWN removal Yang Yingliang <yangyingliang(a)huawei.com> scsi: hisi_sas: Drop free_irq() of devm_request_irq() allocated irq Matt Wang <wwentao(a)vmware.com> scsi: vmw_pvscsi: Set correct residual data length Javed Hasan <jhasan(a)marvell.com> scsi: bnx2fc: Return failure if io_req is already in ABTS processing Íñigo Huguet <ihuguet(a)redhat.com> net:sfc: fix non-freed irq in legacy irq mode Rao Shoaib <rao.shoaib(a)oracle.com> RDS tcp loopback connection can hang Zheyu Ma <zheyuma97(a)gmail.com> net/qla3xxx: fix schedule while atomic in ql_sem_spinlock Sergey Senozhatsky <senozhatsky(a)chromium.org> wq: handle VM suspension in stall detection Shakeel Butt <shakeelb(a)google.com> cgroup: disable controllers at parse time Dan Carpenter <dan.carpenter(a)oracle.com> net: mdiobus: get rid of a BUG_ON() Johannes Berg <johannes.berg(a)intel.com> netlink: disable IRQs for netlink_lock_table() Johannes Berg <johannes.berg(a)intel.com> bonding: init notify_work earlier to avoid uninitialized use Zheyu Ma <zheyuma97(a)gmail.com> isdn: mISDN: netjet: Fix crash in nj_probe: Li Jun <jun.li(a)nxp.com> usb: chipidea: udc: assign interrupt number to USB gadget structure Chunyan Zhang <chunyan.zhang(a)unisoc.com> spi: sprd: Add missing MODULE_DEVICE_TABLE Zou Wei <zou_wei(a)huawei.com> ASoC: sti-sas: add missing MODULE_DEVICE_TABLE Eric Farman <farman(a)linux.ibm.com> vfio-ccw: Serialize FSM IDLE state with I/O completion Eric Farman <farman(a)linux.ibm.com> vfio-ccw: Reset FSM state to IDLE inside FSM Jiri Olsa <jolsa(a)kernel.org> bpf: Add deny list of btf ids check for tracing programs Hans de Goede <hdegoede(a)redhat.com> ASoC: Intel: bytcr_rt5640: Add quirk for the Lenovo Miix 3-830 tablet Hans de Goede <hdegoede(a)redhat.com> ASoC: Intel: bytcr_rt5640: Add quirk for the Glavey TM800A550L tablet Dinghao Liu <dinghao.liu(a)zju.edu.cn> usb: cdns3: Fix runtime PM imbalance on error Jeimon <jjjinmeng.zhou(a)gmail.com> net/nfc/rawsock.c: fix a permission check bug Jiri Olsa <jolsa(a)kernel.org> bpf: Forbid trampoline attach for functions with variable arguments Karen Dombroski <karen.dombroski(a)marsbioimaging.com> spi: spi-zynq-qspi: Fix stack violation bug Saravana Kannan <saravanak(a)google.com> spi: Fix spi device unregister flow Vijendar Mukunda <Vijendar.Mukunda(a)amd.com> ASoC: amd: fix for pcm_read() error Marco Felsch <m.felsch(a)pengutronix.de> ASoC: max98088: fix ni clock divider calculation Kees Cook <keescook(a)chromium.org> proc: Track /proc/$pid/attr/ opener mm_struct ------------- Diffstat: .../bindings/sound/amlogic,gx-sound-card.yaml | 4 +- Documentation/virt/kvm/mmu.rst | 4 +- Makefile | 4 +- arch/arm/include/asm/cpuidle.h | 5 +- arch/mips/lib/mips-atomic.c | 12 +- arch/powerpc/boot/dts/fsl/p1010si-post.dtsi | 8 ++ arch/powerpc/boot/dts/fsl/p2041si-post.dtsi | 16 +++ arch/x86/events/intel/uncore_snbep.c | 3 +- arch/x86/kernel/cpu/perfctr-watchdog.c | 4 +- arch/x86/kvm/mmu/paging_tmpl.h | 14 +- arch/x86/kvm/trace.h | 6 +- crypto/async_tx/async_xor.c | 3 +- drivers/acpi/sleep.c | 4 +- drivers/gpio/gpio-wcd934x.c | 2 +- drivers/gpu/drm/drm_auth.c | 3 +- drivers/gpu/drm/drm_ioctl.c | 9 +- drivers/gpu/drm/mcde/mcde_dsi.c | 2 +- drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 155 +++++++++++++++------ drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 2 +- drivers/i2c/busses/i2c-mpc.c | 95 ++++++++++++- drivers/infiniband/hw/mlx4/main.c | 5 +- drivers/infiniband/hw/mlx5/cq.c | 9 +- drivers/infiniband/ulp/ipoib/ipoib_netlink.c | 1 + drivers/isdn/hardware/mISDN/netjet.c | 1 - drivers/md/dm-verity-verify-sig.c | 2 +- drivers/mmc/host/renesas_sdhi_core.c | 9 +- drivers/net/appletalk/cops.c | 4 +- drivers/net/bonding/bond_main.c | 2 +- drivers/net/dsa/microchip/ksz9477.c | 1 + drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 4 +- drivers/net/ethernet/cadence/macb_main.c | 3 + drivers/net/ethernet/mellanox/mlx4/fw.c | 3 + drivers/net/ethernet/mellanox/mlx4/fw.h | 1 + drivers/net/ethernet/mellanox/mlx4/main.c | 6 + drivers/net/ethernet/qlogic/qla3xxx.c | 2 +- drivers/net/ethernet/sfc/nic.c | 1 + drivers/net/phy/mdio_bus.c | 3 +- drivers/nvme/host/Kconfig | 3 +- drivers/nvme/host/fabrics.c | 5 + drivers/nvme/target/core.c | 15 +- drivers/nvme/target/nvmet.h | 2 +- drivers/phy/broadcom/phy-brcm-usb-init.h | 4 +- drivers/phy/cadence/phy-cadence-sierra.c | 1 + drivers/phy/ti/phy-j721e-wiz.c | 1 + drivers/regulator/bd718x7-regulator.c | 2 +- drivers/regulator/core.c | 6 + drivers/regulator/fan53880.c | 3 + drivers/regulator/max77620-regulator.c | 7 + drivers/regulator/rtmv20-regulator.c | 42 +++++- drivers/s390/cio/vfio_ccw_drv.c | 12 +- drivers/s390/cio/vfio_ccw_fsm.c | 1 + drivers/s390/cio/vfio_ccw_ops.c | 2 - drivers/scsi/bnx2fc/bnx2fc_io.c | 1 + drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 8 +- drivers/scsi/hosts.c | 47 ++++--- drivers/scsi/qla2xxx/qla_target.c | 2 + drivers/scsi/vmw_pvscsi.c | 8 +- drivers/spi/spi-bcm2835.c | 10 +- drivers/spi/spi-bitbang.c | 18 ++- drivers/spi/spi-fsl-spi.c | 4 + drivers/spi/spi-omap-uwire.c | 9 +- drivers/spi/spi-omap2-mcspi.c | 33 +++-- drivers/spi/spi-pxa2xx.c | 9 +- drivers/spi/spi-sprd.c | 1 + drivers/spi/spi-zynq-qspi.c | 7 +- drivers/spi/spi.c | 20 ++- drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c | 2 +- drivers/usb/cdns3/gadget.c | 4 +- drivers/usb/chipidea/udc.c | 1 + drivers/usb/dwc3/debug.h | 3 + drivers/usb/dwc3/debugfs.c | 21 +-- drivers/usb/dwc3/dwc3-meson-g12a.c | 13 +- drivers/usb/dwc3/ep0.c | 3 + drivers/usb/dwc3/gadget.c | 18 ++- drivers/usb/gadget/config.c | 8 ++ drivers/usb/gadget/function/f_ecm.c | 2 +- drivers/usb/gadget/function/f_eem.c | 6 +- drivers/usb/gadget/function/f_fs.c | 3 + drivers/usb/gadget/function/f_hid.c | 3 +- drivers/usb/gadget/function/f_loopback.c | 2 +- drivers/usb/gadget/function/f_ncm.c | 10 +- drivers/usb/gadget/function/f_printer.c | 3 +- drivers/usb/gadget/function/f_rndis.c | 2 +- drivers/usb/gadget/function/f_serial.c | 2 +- drivers/usb/gadget/function/f_sourcesink.c | 3 +- drivers/usb/gadget/function/f_subset.c | 2 +- drivers/usb/gadget/function/f_tcm.c | 3 +- drivers/usb/musb/musb_core.c | 3 +- drivers/usb/serial/cp210x.c | 20 ++- drivers/usb/serial/ftdi_sio.c | 1 + drivers/usb/serial/ftdi_sio_ids.h | 1 + drivers/usb/serial/omninet.c | 2 + drivers/usb/serial/quatech2.c | 6 +- drivers/usb/typec/mux.c | 2 +- drivers/usb/typec/mux/intel_pmc_mux.c | 9 +- drivers/usb/typec/tcpm/tcpm.c | 4 + drivers/usb/typec/tcpm/wcove.c | 2 +- drivers/usb/typec/ucsi/ucsi.c | 1 + fs/btrfs/disk-io.c | 26 ++-- fs/btrfs/file.c | 4 +- fs/nfs/client.c | 2 +- fs/nfs/nfs4_fs.h | 1 + fs/nfs/nfs4client.c | 2 +- fs/nfs/nfs4proc.c | 29 +++- fs/proc/base.c | 9 +- include/asm-generic/vmlinux.lds.h | 1 + include/linux/kvm_host.h | 10 +- include/linux/mfd/rohm-bd71828.h | 10 +- include/linux/mlx4/device.h | 1 + include/linux/sched.h | 8 ++ include/linux/usb/pd.h | 2 +- kernel/bpf/btf.c | 12 ++ kernel/bpf/verifier.c | 14 ++ kernel/cgroup/cgroup-v1.c | 4 + kernel/cgroup/cgroup.c | 13 +- kernel/events/core.c | 2 + kernel/sched/debug.c | 3 +- kernel/sched/fair.c | 18 +-- kernel/sched/pelt.h | 11 +- kernel/trace/ftrace.c | 8 +- kernel/trace/trace.c | 2 +- kernel/workqueue.c | 12 +- net/netlink/af_netlink.c | 6 +- net/nfc/rawsock.c | 2 +- net/rds/connection.c | 23 ++- net/rds/tcp.c | 4 +- net/rds/tcp.h | 3 +- net/rds/tcp_listen.c | 6 + sound/core/seq/seq_timer.c | 10 +- sound/firewire/amdtp-stream.c | 2 +- sound/pci/hda/patch_realtek.c | 16 +++ sound/soc/amd/raven/acp3x-pcm-dma.c | 10 -- sound/soc/amd/raven/acp3x.h | 1 + sound/soc/amd/raven/pci-acp3x.c | 15 ++ sound/soc/codecs/max98088.c | 13 +- sound/soc/codecs/sti-sas.c | 1 + sound/soc/intel/boards/bytcr_rt5640.c | 25 ++++ sound/soc/soc-core.c | 2 + tools/bootconfig/main.c | 1 + tools/perf/util/session.c | 1 + 140 files changed, 896 insertions(+), 309 deletions(-)

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+ mm-futex-fix-shared-futex-pgoff-on-shmem-huge-page.patch added to -mm tree

by akpm＠linux-foundation.org

The patch titled Subject: mm, futex: fix shared futex pgoff on shmem huge page has been added to the -mm tree. Its filename is mm-futex-fix-shared-futex-pgoff-on-shmem-huge-page.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-futex-fix-shared-futex-pgoff-o… and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-futex-fix-shared-futex-pgoff-o… 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: Hugh Dickins <hughd(a)google.com> Subject: mm, futex: fix shared futex pgoff on shmem huge page If more than one futex is placed on a shmem huge page, it can happen that waking the second wakes the first instead, and leaves the second waiting: the key's shared.pgoff is wrong. When 3.11 commit 13d60f4b6ab5 ("futex: Take hugepages into account when generating futex_key"), the only shared huge pages came from hugetlbfs, and the code added to deal with its exceptional page->index was put into hugetlb source. Then that was missed when 4.8 added shmem huge pages. page_to_pgoff() is what others use for this nowadays: except that, as currently written, it gives the right answer on hugetlbfs head, but nonsense on hugetlbfs tails. Fix that by calling hugetlbfs-specific hugetlb_basepage_index() on PageHuge tails as well as on head. Yes, it's unconventional to declare hugetlb_basepage_index() there in pagemap.h, rather than in hugetlb.h; but I do not expect anything but page_to_pgoff() ever to need it. Link: https://lkml.kernel.org/r/b17d946b-d09-326e-b42a-52884c36df32@google.com Fixes: 800d8c63b2e9 ("shmem: add huge pages support") Reported-by: Neel Natu <neelnatu(a)google.com> Signed-off-by: Hugh Dickins <hughd(a)google.com> Reviewed-by: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: "Kirill A. Shutemov" <kirill.shutemov(a)linux.intel.com> Cc: Zhang Yi <wetpzy(a)gmail.com> Cc: Mel Gorman <mgorman(a)techsingularity.net> Cc: Mike Kravetz <mike.kravetz(a)oracle.com> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Ingo Molnar <mingo(a)redhat.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Darren Hart <dvhart(a)infradead.org> Cc: Davidlohr Bueso <dave(a)stgolabs.net> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/hugetlb.h | 16 ---------------- include/linux/pagemap.h | 13 +++++++------ kernel/futex.c | 3 +-- mm/hugetlb.c | 5 +---- 4 files changed, 9 insertions(+), 28 deletions(-) --- a/include/linux/hugetlb.h~mm-futex-fix-shared-futex-pgoff-on-shmem-huge-page +++ a/include/linux/hugetlb.h @@ -741,17 +741,6 @@ static inline int hstate_index(struct hs return h - hstates; } -pgoff_t __basepage_index(struct page *page); - -/* Return page->index in PAGE_SIZE units */ -static inline pgoff_t basepage_index(struct page *page) -{ - if (!PageCompound(page)) - return page->index; - - return __basepage_index(page); -} - extern int dissolve_free_huge_page(struct page *page); extern int dissolve_free_huge_pages(unsigned long start_pfn, unsigned long end_pfn); @@ -988,11 +977,6 @@ static inline int hstate_index(struct hs return 0; } -static inline pgoff_t basepage_index(struct page *page) -{ - return page->index; -} - static inline int dissolve_free_huge_page(struct page *page) { return 0; --- a/include/linux/pagemap.h~mm-futex-fix-shared-futex-pgoff-on-shmem-huge-page +++ a/include/linux/pagemap.h @@ -516,7 +516,7 @@ static inline struct page *read_mapping_ } /* - * Get index of the page with in radix-tree + * Get index of the page within radix-tree (but not for hugetlb pages). * (TODO: remove once hugetlb pages will have ->index in PAGE_SIZE) */ static inline pgoff_t page_to_index(struct page *page) @@ -536,14 +536,15 @@ static inline pgoff_t page_to_index(stru } /* - * Get the offset in PAGE_SIZE. - * (TODO: hugepage should have ->index in PAGE_SIZE) + * Get the offset in PAGE_SIZE (even for hugetlb pages). + * (TODO: hugetlb pages should have ->index in PAGE_SIZE) */ static inline pgoff_t page_to_pgoff(struct page *page) { - if (unlikely(PageHeadHuge(page))) - return page->index << compound_order(page); - + if (unlikely(PageHuge(page))) { + extern pgoff_t hugetlb_basepage_index(struct page *page); + return hugetlb_basepage_index(page); + } return page_to_index(page); } --- a/kernel/futex.c~mm-futex-fix-shared-futex-pgoff-on-shmem-huge-page +++ a/kernel/futex.c @@ -35,7 +35,6 @@ #include <linux/jhash.h> #include <linux/pagemap.h> #include <linux/syscalls.h> -#include <linux/hugetlb.h> #include <linux/freezer.h> #include <linux/memblock.h> #include <linux/fault-inject.h> @@ -650,7 +649,7 @@ again: key->both.offset |= FUT_OFF_INODE; /* inode-based key */ key->shared.i_seq = get_inode_sequence_number(inode); - key->shared.pgoff = basepage_index(tail); + key->shared.pgoff = page_to_pgoff(tail); rcu_read_unlock(); } --- a/mm/hugetlb.c~mm-futex-fix-shared-futex-pgoff-on-shmem-huge-page +++ a/mm/hugetlb.c @@ -1588,15 +1588,12 @@ struct address_space *hugetlb_page_mappi return NULL; } -pgoff_t __basepage_index(struct page *page) +pgoff_t hugetlb_basepage_index(struct page *page) { struct page *page_head = compound_head(page); pgoff_t index = page_index(page_head); unsigned long compound_idx; - if (!PageHuge(page_head)) - return page_index(page); - if (compound_order(page_head) >= MAX_ORDER) compound_idx = page_to_pfn(page) - page_to_pfn(page_head); else _ Patches currently in -mm which might be from hughd(a)google.com are mm-thp-fix-__split_huge_pmd_locked-on-shmem-migration-entry.patch mm-thp-make-is_huge_zero_pmd-safe-and-quicker.patch mm-thp-try_to_unmap-use-ttu_sync-for-safe-splitting.patch mm-thp-fix-vma_address-if-virtual-address-below-file-offset.patch mm-thp-unmap_mapping_page-to-fix-thp-truncate_cleanup_page.patch mm-page_vma_mapped_walk-use-page-for-pvmw-page.patch mm-page_vma_mapped_walk-settle-pagehuge-on-entry.patch mm-page_vma_mapped_walk-use-pmd_read_atomic.patch mm-page_vma_mapped_walk-use-pmde-for-pvmw-pmd.patch mm-page_vma_mapped_walk-prettify-pvmw_migration-block.patch mm-page_vma_mapped_walk-crossing-page-table-boundary.patch mm-page_vma_mapped_walk-add-a-level-of-indentation.patch mm-page_vma_mapped_walk-use-goto-instead-of-while-1.patch mm-page_vma_mapped_walk-get-vma_address_end-earlier.patch mm-thp-fix-page_vma_mapped_walk-if-thp-mapped-by-ptes.patch mm-thp-another-pvmw_sync-fix-in-page_vma_mapped_walk.patch mm-futex-fix-shared-futex-pgoff-on-shmem-huge-page.patch mm-thp-remap_page-is-only-needed-on-anonymous-thp.patch mm-hwpoison_user_mappings-try_to_unmap-with-ttu_sync.patch

4 years

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[PATCH resend] mm/gup: fix try_grab_compound_head() race with split_huge_page()

by Jann Horn

try_grab_compound_head() is used to grab a reference to a page from get_user_pages_fast(), which is only protected against concurrent freeing of page tables (via local_irq_save()), but not against concurrent TLB flushes, freeing of data pages, or splitting of compound pages. Because no reference is held to the page when try_grab_compound_head() is called, the page may have been freed and reallocated by the time its refcount has been elevated; therefore, once we're holding a stable reference to the page, the caller re-checks whether the PTE still points to the same page (with the same access rights). The problem is that try_grab_compound_head() has to grab a reference on the head page; but between the time we look up what the head page is and the time we actually grab a reference on the head page, the compound page may have been split up (either explicitly through split_huge_page() or by freeing the compound page to the buddy allocator and then allocating its individual order-0 pages). If that happens, get_user_pages_fast() may end up returning the right page but lifting the refcount on a now-unrelated page, leading to use-after-free of pages. To fix it: Re-check whether the pages still belong together after lifting the refcount on the head page. Move anything else that checks compound_head(page) below the refcount increment. This can't actually happen on bare-metal x86 (because there, disabling IRQs locks out remote TLB flushes), but it can happen on virtualized x86 (e.g. under KVM) and probably also on arm64. The race window is pretty narrow, and constantly allocating and shattering hugepages isn't exactly fast; for now I've only managed to reproduce this in an x86 KVM guest with an artificially widened timing window (by adding a loop that repeatedly calls `inl(0x3f8 + 5)` in `try_get_compound_head()` to force VM exits, so that PV TLB flushes are used instead of IPIs). Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Kirill A. Shutemov <kirill(a)shutemov.name> Cc: John Hubbard <jhubbard(a)nvidia.com> Cc: Jan Kara <jack(a)suse.cz> Cc: stable(a)vger.kernel.org Fixes: 7aef4172c795 ("mm: handle PTE-mapped tail pages in gerneric fast gup implementaiton") Signed-off-by: Jann Horn <jannh(a)google.com> --- resending because linux-mm was down mm/gup.c | 54 +++++++++++++++++++++++++++++++++++++++--------------- 1 file changed, 39 insertions(+), 15 deletions(-) diff --git a/mm/gup.c b/mm/gup.c index 3ded6a5f26b2..1f9c0ac15073 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -43,8 +43,21 @@ static void hpage_pincount_sub(struct page *page, int refs) atomic_sub(refs, compound_pincount_ptr(page)); } +/* Equivalent to calling put_page() @refs times. */ +static void put_page_refs(struct page *page, int refs) +{ + VM_BUG_ON_PAGE(page_ref_count(page) < refs, page); + /* + * Calling put_page() for each ref is unnecessarily slow. Only the last + * ref needs a put_page(). + */ + if (refs > 1) + page_ref_sub(page, refs - 1); + put_page(page); +} + /* * Return the compound head page with ref appropriately incremented, * or NULL if that failed. */ @@ -55,8 +68,23 @@ static inline struct page *try_get_compound_head(struct page *page, int refs) if (WARN_ON_ONCE(page_ref_count(head) < 0)) return NULL; if (unlikely(!page_cache_add_speculative(head, refs))) return NULL; + + /* + * At this point we have a stable reference to the head page; but it + * could be that between the compound_head() lookup and the refcount + * increment, the compound page was split, in which case we'd end up + * holding a reference on a page that has nothing to do with the page + * we were given anymore. + * So now that the head page is stable, recheck that the pages still + * belong together. + */ + if (unlikely(compound_head(page) != head)) { + put_page_refs(head, refs); + return NULL; + } + return head; } /* @@ -94,25 +122,28 @@ __maybe_unused struct page *try_grab_compound_head(struct page *page, if (unlikely((flags & FOLL_LONGTERM) && !is_pinnable_page(page))) return NULL; + /* + * CAUTION: Don't use compound_head() on the page before this + * point, the result won't be stable. + */ + page = try_get_compound_head(page, refs); + if (!page) + return NULL; + /* * When pinning a compound page of order > 1 (which is what * hpage_pincount_available() checks for), use an exact count to * track it, via hpage_pincount_add/_sub(). * * However, be sure to *also* increment the normal page refcount * field at least once, so that the page really is pinned. */ - if (!hpage_pincount_available(page)) - refs *= GUP_PIN_COUNTING_BIAS; - - page = try_get_compound_head(page, refs); - if (!page) - return NULL; - if (hpage_pincount_available(page)) hpage_pincount_add(page, refs); + else + page_ref_add(page, refs * (GUP_PIN_COUNTING_BIAS - 1)); mod_node_page_state(page_pgdat(page), NR_FOLL_PIN_ACQUIRED, orig_refs); @@ -134,16 +165,9 @@ static void put_compound_head(struct page *page, int refs, unsigned int flags) else refs *= GUP_PIN_COUNTING_BIAS; } - VM_BUG_ON_PAGE(page_ref_count(page) < refs, page); - /* - * Calling put_page() for each ref is unnecessarily slow. Only the last - * ref needs a put_page(). - */ - if (refs > 1) - page_ref_sub(page, refs - 1); - put_page(page); + put_page_refs(page, refs); } /** * try_grab_page() - elevate a page's refcount by a flag-dependent amount base-commit: 614124bea77e452aa6df7a8714e8bc820b489922 -- 2.32.0.272.g935e593368-goog

4 years

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stable-rc/queue/4.14 baseline: 136 runs, 1 regressions (v4.14.236-49-gfd4c319f2583)

by kernelci.org bot

stable-rc/queue/4.14 baseline: 136 runs, 1 regressions (v4.14.236-49-gfd4c319f2583) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions ---------------+-------+--------------+----------+-----------+------------ meson-gxm-q200 | arm64 | lab-baylibre | gcc-8 | defconfig | 1 Details: https://kernelci.org/test/job/stable-rc/branch/queue%2F4.14/kernel/v4.14.23… Test: baseline Tree: stable-rc Branch: queue/4.14 Describe: v4.14.236-49-gfd4c319f2583 URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git SHA: fd4c319f2583a75ff58203593a3a55a18e012a64 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions ---------------+-------+--------------+----------+-----------+------------ meson-gxm-q200 | arm64 | lab-baylibre | gcc-8 | defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7d530871bde0782413294 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-8 (aarch64-linux-gnu-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/queue-4.14/v4.14.236-49-gfd4c319f25… HTML log: https://storage.kernelci.org//stable-rc/queue-4.14/v4.14.236-49-gfd4c319f25… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7d530871bde0782413295 failing since 105 days (last pass: v4.14.222-11-g13b8482a0f700, first fail: v4.14.222-120-gdc8887cba23e)

4 years

1
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stable-rc/linux-5.4.y baseline: 144 runs, 6 regressions (v5.4.125-85-g4a2dfe908c1e)

by kernelci.org bot

stable-rc/linux-5.4.y baseline: 144 runs, 6 regressions (v5.4.125-85-g4a2dfe908c1e) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions ---------------------+-------+-----------------+----------+---------------------+------------ hifive-unleashed-a00 | riscv | lab-baylibre | gcc-8 | defconfig | 1 qemu_arm-versatilepb | arm | lab-baylibre | gcc-8 | versatile_defconfig | 1 qemu_arm-versatilepb | arm | lab-broonie | gcc-8 | versatile_defconfig | 1 qemu_arm-versatilepb | arm | lab-cip | gcc-8 | versatile_defconfig | 1 qemu_arm-versatilepb | arm | lab-collabora | gcc-8 | versatile_defconfig | 1 qemu_arm-versatilepb | arm | lab-linaro-lkft | gcc-8 | versatile_defconfig | 1 Details: https://kernelci.org/test/job/stable-rc/branch/linux-5.4.y/kernel/v5.4.125-… Test: baseline Tree: stable-rc Branch: linux-5.4.y Describe: v5.4.125-85-g4a2dfe908c1e URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git SHA: 4a2dfe908c1ec200cbcd6d22b4d37a52086af057 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions ---------------------+-------+-----------------+----------+---------------------+------------ hifive-unleashed-a00 | riscv | lab-baylibre | gcc-8 | defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7b5f448adb6d34e41326c Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-8 (riscv64-linux-gnu-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-5.4.y/v5.4.125-85-g4a2dfe908c… HTML log: https://storage.kernelci.org//stable-rc/linux-5.4.y/v5.4.125-85-g4a2dfe908c… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7b5f448adb6d34e41326d failing since 206 days (last pass: v5.4.77-152-ga3746663c3479, first fail: v5.4.78) platform | arch | lab | compiler | defconfig | regressions ---------------------+-------+-----------------+----------+---------------------+------------ qemu_arm-versatilepb | arm | lab-baylibre | gcc-8 | versatile_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7b58b811d351950413275 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: versatile_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-5.4.y/v5.4.125-85-g4a2dfe908c… HTML log: https://storage.kernelci.org//stable-rc/linux-5.4.y/v5.4.125-85-g4a2dfe908c… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7b58b811d351950413276 failing since 212 days (last pass: v5.4.77-44-g28fe0e171c204, first fail: v5.4.77-46-ga3e34830d912) platform | arch | lab | compiler | defconfig | regressions ---------------------+-------+-----------------+----------+---------------------+------------ qemu_arm-versatilepb | arm | lab-broonie | gcc-8 | versatile_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7bba476463859af413267 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: versatile_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-5.4.y/v5.4.125-85-g4a2dfe908c… HTML log: https://storage.kernelci.org//stable-rc/linux-5.4.y/v5.4.125-85-g4a2dfe908c… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7bba476463859af413268 failing since 212 days (last pass: v5.4.77-44-g28fe0e171c204, first fail: v5.4.77-46-ga3e34830d912) platform | arch | lab | compiler | defconfig | regressions ---------------------+-------+-----------------+----------+---------------------+------------ qemu_arm-versatilepb | arm | lab-cip | gcc-8 | versatile_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7b58a811d351950413272 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: versatile_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-5.4.y/v5.4.125-85-g4a2dfe908c… HTML log: https://storage.kernelci.org//stable-rc/linux-5.4.y/v5.4.125-85-g4a2dfe908c… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7b58a811d351950413273 failing since 212 days (last pass: v5.4.77-44-g28fe0e171c204, first fail: v5.4.77-46-ga3e34830d912) platform | arch | lab | compiler | defconfig | regressions ---------------------+-------+-----------------+----------+---------------------+------------ qemu_arm-versatilepb | arm | lab-collabora | gcc-8 | versatile_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7dab75585381cf1413296 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: versatile_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-5.4.y/v5.4.125-85-g4a2dfe908c… HTML log: https://storage.kernelci.org//stable-rc/linux-5.4.y/v5.4.125-85-g4a2dfe908c… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7dab75585381cf1413297 failing since 212 days (last pass: v5.4.77-44-g28fe0e171c204, first fail: v5.4.77-46-ga3e34830d912) platform | arch | lab | compiler | defconfig | regressions ---------------------+-------+-----------------+----------+---------------------+------------ qemu_arm-versatilepb | arm | lab-linaro-lkft | gcc-8 | versatile_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7e405d0702e43e241326f Results: 0 PASS, 1 FAIL, 0 SKIP Full config: versatile_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-5.4.y/v5.4.125-85-g4a2dfe908c… HTML log: https://storage.kernelci.org//stable-rc/linux-5.4.y/v5.4.125-85-g4a2dfe908c… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7e405d0702e43e2413270 failing since 212 days (last pass: v5.4.77-44-g28fe0e171c204, first fail: v5.4.77-46-ga3e34830d912)

4 years

1
0
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stable-rc/linux-4.4.y baseline: 118 runs, 12 regressions (v4.4.272-35-gc652289a55a0)

by kernelci.org bot

stable-rc/linux-4.4.y baseline: 118 runs, 12 regressions (v4.4.272-35-gc652289a55a0) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ dove-cubox | arm | lab-pengutronix | gcc-8 | mvebu_v7_defconfig | 1 qemu_arm-virt-gicv2 | arm | lab-baylibre | gcc-8 | multi_v7_defconfig | 1 qemu_arm-virt-gicv2 | arm | lab-broonie | gcc-8 | multi_v7_defconfig | 1 qemu_arm-virt-gicv2 | arm | lab-cip | gcc-8 | multi_v7_defconfig | 1 qemu_arm-virt-gicv2 | arm | lab-collabora | gcc-8 | multi_v7_defconfig | 1 qemu_arm-virt-gicv2 | arm | lab-linaro-lkft | gcc-8 | multi_v7_defconfig | 1 qemu_arm-virt-gicv3 | arm | lab-baylibre | gcc-8 | multi_v7_defconfig | 1 qemu_arm-virt-gicv3 | arm | lab-broonie | gcc-8 | multi_v7_defconfig | 1 qemu_arm-virt-gicv3 | arm | lab-cip | gcc-8 | multi_v7_defconfig | 1 qemu_arm-virt-gicv3 | arm | lab-collabora | gcc-8 | multi_v7_defconfig | 1 qemu_arm-virt-gicv3 | arm | lab-linaro-lkft | gcc-8 | multi_v7_defconfig | 1 qemu_i386 | i386 | lab-broonie | gcc-8 | i386_defconfig | 1 Details: https://kernelci.org/test/job/stable-rc/branch/linux-4.4.y/kernel/v4.4.272-… Test: baseline Tree: stable-rc Branch: linux-4.4.y Describe: v4.4.272-35-gc652289a55a0 URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git SHA: c652289a55a0a8cf744f33b45528413e6adaf0cf Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ dove-cubox | arm | lab-pengutronix | gcc-8 | mvebu_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7b3479e5a2036a94132ac Results: 0 PASS, 1 FAIL, 0 SKIP Full config: mvebu_v7_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… HTML log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7b3479e5a2036a94132ad failing since 4 days (last pass: v4.4.271-24-g1aa9f2da3002, first fail: v4.4.272) platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ qemu_arm-virt-gicv2 | arm | lab-baylibre | gcc-8 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7b35d307d7d6135413269 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… HTML log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7b35d307d7d613541326a failing since 212 days (last pass: v4.4.243-14-gcb8e837cb602, first fail: v4.4.243-20-g3c35b64319c2) platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ qemu_arm-virt-gicv2 | arm | lab-broonie | gcc-8 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7b9230d5cfc4bc6413277 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… HTML log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7b9230d5cfc4bc6413278 failing since 212 days (last pass: v4.4.243-14-gcb8e837cb602, first fail: v4.4.243-20-g3c35b64319c2) platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ qemu_arm-virt-gicv2 | arm | lab-cip | gcc-8 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7b34f8e2340395d413268 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… HTML log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7b34f8e2340395d413269 failing since 212 days (last pass: v4.4.243-14-gcb8e837cb602, first fail: v4.4.243-20-g3c35b64319c2) platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ qemu_arm-virt-gicv2 | arm | lab-collabora | gcc-8 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7d717b0c78229154132f6 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… HTML log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7d717b0c78229154132f7 failing since 212 days (last pass: v4.4.243-14-gcb8e837cb602, first fail: v4.4.243-20-g3c35b64319c2) platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ qemu_arm-virt-gicv2 | arm | lab-linaro-lkft | gcc-8 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7e3f39142f2935f41326a Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… HTML log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7e3f39142f2935f41326b failing since 212 days (last pass: v4.4.243-14-gcb8e837cb602, first fail: v4.4.243-20-g3c35b64319c2) platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ qemu_arm-virt-gicv3 | arm | lab-baylibre | gcc-8 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7b35aa912fdf45c41326a Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… HTML log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7b35aa912fdf45c41326b failing since 212 days (last pass: v4.4.243-14-gcb8e837cb602, first fail: v4.4.243-20-g3c35b64319c2) platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ qemu_arm-virt-gicv3 | arm | lab-broonie | gcc-8 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7b8fb7e4a051100413266 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… HTML log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7b8fb7e4a051100413267 failing since 212 days (last pass: v4.4.243-14-gcb8e837cb602, first fail: v4.4.243-20-g3c35b64319c2) platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ qemu_arm-virt-gicv3 | arm | lab-cip | gcc-8 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7b35a081bc1908041326b Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… HTML log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7b35a081bc1908041326c failing since 212 days (last pass: v4.4.243-14-gcb8e837cb602, first fail: v4.4.243-20-g3c35b64319c2) platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ qemu_arm-virt-gicv3 | arm | lab-collabora | gcc-8 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7d6a3945d5786f541328c Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… HTML log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7d6a3945d5786f541328d failing since 212 days (last pass: v4.4.243-14-gcb8e837cb602, first fail: v4.4.243-20-g3c35b64319c2) platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ qemu_arm-virt-gicv3 | arm | lab-linaro-lkft | gcc-8 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7e3f2e3e538521941326b Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig Compiler: gcc-8 (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… HTML log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7e3f2e3e538521941326c failing since 212 days (last pass: v4.4.243-14-gcb8e837cb602, first fail: v4.4.243-20-g3c35b64319c2) platform | arch | lab | compiler | defconfig | regressions --------------------+------+-----------------+----------+--------------------+------------ qemu_i386 | i386 | lab-broonie | gcc-8 | i386_defconfig | 1 Details: https://kernelci.org/test/plan/id/60c7b7e329547810be413273 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: i386_defconfig Compiler: gcc-8 (gcc (Debian 8.3.0-6) 8.3.0) Plain log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… HTML log: https://storage.kernelci.org//stable-rc/linux-4.4.y/v4.4.272-35-gc652289a55… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/kci-2020.05-5-g2f114cc7… * baseline.login: https://kernelci.org/test/case/id/60c7b7e329547810be413274 new failure (last pass: v4.4.272)

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Linux-stable-mirror June 2021