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patch "iio: addac: stx104: Fix race condition for stx104_write_raw()" added to char-misc-testing

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: addac: stx104: Fix race condition for stx104_write_raw() to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-testing branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will be merged to the char-misc-next branch sometime soon, after it passes testing, and the merge window is open. If you have any questions about this process, please let me know. From 9740827468cea80c42db29e7171a50e99acf7328 Mon Sep 17 00:00:00 2001 From: William Breathitt Gray <william.gray(a)linaro.org> Date: Thu, 6 Apr 2023 10:40:10 -0400 Subject: iio: addac: stx104: Fix race condition for stx104_write_raw() The priv->chan_out_states array and actual DAC value can become mismatched if stx104_write_raw() is called concurrently. Prevent such a race condition by utilizing a mutex. Fixes: 97a445dad37a ("iio: Add IIO support for the DAC on the Apex Embedded Systems STX104") Signed-off-by: William Breathitt Gray <william.gray(a)linaro.org> Link: https://lore.kernel.org/r/c95c9a77fcef36b2a052282146950f23bbc1ebdc.16807905… Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/addac/stx104.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/iio/addac/stx104.c b/drivers/iio/addac/stx104.c index e45b70aa5bb7..4239aafe42fc 100644 --- a/drivers/iio/addac/stx104.c +++ b/drivers/iio/addac/stx104.c @@ -15,6 +15,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/moduleparam.h> +#include <linux/mutex.h> #include <linux/spinlock.h> #include <linux/types.h> @@ -69,10 +70,12 @@ struct stx104_reg { /** * struct stx104_iio - IIO device private data structure + * @lock: synchronization lock to prevent I/O race conditions * @chan_out_states: channels' output states * @reg: I/O address offset for the device registers */ struct stx104_iio { + struct mutex lock; unsigned int chan_out_states[STX104_NUM_OUT_CHAN]; struct stx104_reg __iomem *reg; }; @@ -178,9 +181,12 @@ static int stx104_write_raw(struct iio_dev *indio_dev, if ((unsigned int)val > 65535) return -EINVAL; + mutex_lock(&priv->lock); + priv->chan_out_states[chan->channel] = val; iowrite16(val, &priv->reg->dac[chan->channel]); + mutex_unlock(&priv->lock); return 0; } return -EINVAL; @@ -351,6 +357,8 @@ static int stx104_probe(struct device *dev, unsigned int id) indio_dev->name = dev_name(dev); + mutex_init(&priv->lock); + /* configure device for software trigger operation */ iowrite8(0, &priv->reg->acr); -- 2.40.0

2 years, 5 months

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[PATCH 4.19 1/1] KVM: nVMX: add missing consistency checks for CR0 and CR4

by Ovidiu Panait

From: Paolo Bonzini <pbonzini(a)redhat.com> commit 112e66017bff7f2837030f34c2bc19501e9212d5 upstream. The effective values of the guest CR0 and CR4 registers may differ from those included in the VMCS12. In particular, disabling EPT forces CR4.PAE=1 and disabling unrestricted guest mode forces CR0.PG=CR0.PE=1. Therefore, checks on these bits cannot be delegated to the processor and must be performed by KVM. Reported-by: Reima ISHII <ishiir(a)g.ecc.u-tokyo.ac.jp> Cc: stable(a)vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> [OP: drop CC() macro calls, as tracing is not implemented in 4.19] [OP: adjust "return -EINVAL" -> "return 1" to match current return logic] Signed-off-by: Ovidiu Panait <ovidiu.panait(a)windriver.com> --- arch/x86/kvm/vmx/vmx.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index ec821a5d131a..265e70b0eb79 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -12752,7 +12752,7 @@ static int nested_vmx_check_vmcs_link_ptr(struct kvm_vcpu *vcpu, static int check_vmentry_postreqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12, u32 *exit_qual) { - bool ia32e; + bool ia32e = !!(vmcs12->vm_entry_controls & VM_ENTRY_IA32E_MODE); *exit_qual = ENTRY_FAIL_DEFAULT; @@ -12765,6 +12765,13 @@ static int check_vmentry_postreqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12, return 1; } + if ((vmcs12->guest_cr0 & (X86_CR0_PG | X86_CR0_PE)) == X86_CR0_PG) + return 1; + + if ((ia32e && !(vmcs12->guest_cr4 & X86_CR4_PAE)) || + (ia32e && !(vmcs12->guest_cr0 & X86_CR0_PG))) + return 1; + /* * If the load IA32_EFER VM-entry control is 1, the following checks * are performed on the field for the IA32_EFER MSR: @@ -12776,7 +12783,6 @@ static int check_vmentry_postreqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12, */ if (to_vmx(vcpu)->nested.nested_run_pending && (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_IA32_EFER)) { - ia32e = (vmcs12->vm_entry_controls & VM_ENTRY_IA32E_MODE) != 0; if (!kvm_valid_efer(vcpu, vmcs12->guest_ia32_efer) || ia32e != !!(vmcs12->guest_ia32_efer & EFER_LMA) || ((vmcs12->guest_cr0 & X86_CR0_PG) && -- 2.39.1

2 years, 5 months

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[PATCH v3 3/5] tty: serial: sh-sci: Fix TE setting on SCI IP

by Biju Das

As per the RZ/G2L users hardware manual (Rev.1.20 Sep, 2022), section 23.3.7 Serial Data Transmission (Asynchronous Mode) it is mentioned that the TE (transmit enable) must be set after setting TIE (transmit interrupt enable) or these 2 bits are set to 1 simultaneously by a single instruction. So set these 2 bits in single instruction. Fixes: 93bcefd4c6ba ("serial: sh-sci: Fix setting SCSCR_TIE while transferring data") Cc: stable(a)vger.kernel.org Signed-off-by: Biju Das <biju.das.jz(a)bp.renesas.com> --- v3: * New patch moved here from Renesas SCI fixes patch series * Updated commit description * Moved handling of clearing TE bit as separate patch#5. --- drivers/tty/serial/sh-sci.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 15743c2f3d3d..32f5c1f7d697 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -601,6 +601,15 @@ static void sci_start_tx(struct uart_port *port) port->type == PORT_SCIFA || port->type == PORT_SCIFB) { /* Set TIE (Transmit Interrupt Enable) bit in SCSCR */ ctrl = serial_port_in(port, SCSCR); + + /* + * For SCI, TE (transmit enable) must be set after setting TIE + * (transmit interrupt enable) or in the same instruction to start + * the transmit process. + */ + if (port->type == PORT_SCI) + ctrl |= SCSCR_TE; + serial_port_out(port, SCSCR, ctrl | SCSCR_TIE); } } @@ -2600,8 +2609,14 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios, sci_set_mctrl(port, port->mctrl); } - scr_val |= SCSCR_RE | SCSCR_TE | - (s->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0)); + /* + * For SCI, TE (transmit enable) must be set after setting TIE + * (transmit interrupt enable) or in the same instruction to + * start the transmitting process. So skip setting TE here for SCI. + */ + if (port->type != PORT_SCI) + scr_val |= SCSCR_TE; + scr_val |= SCSCR_RE | (s->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0)); serial_port_out(port, SCSCR, scr_val | s->hscif_tot); if ((srr + 1 == 5) && (port->type == PORT_SCIFA || port->type == PORT_SCIFB)) { -- 2.25.1

2 years, 5 months

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[GIT PULL 22/22] xfs: rollup of various bug fixes

by Darrick J. Wong

Hi Dave, Please pull this branch with changes for xfs. As usual, I did a test-merge with the main upstream branch as of a few minutes ago, and didn't see any conflicts. Please let me know if you encounter any problems. --D The following changes since commit 7ba83850ca2691865713b307ed001bde5fddb084: xfs: deprecate the ascii-ci feature (2023-04-11 19:05:19 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git tags/fix-bugs-6.4_2023-04-11 for you to fetch changes up to 4fe9cd8a34a1f934e5f936d4245e19300b52d440: xfs: fix BUG_ON in xfs_getbmap() (2023-04-11 19:48:08 -0700) ---------------------------------------------------------------- xfs: rollup of various bug fixes This is a rollup of miscellaneous bug fixes. Signed-off-by: Darrick J. Wong <djwong(a)kernel.org> ---------------------------------------------------------------- Darrick J. Wong (2): xfs: _{attr,data}_map_shared should take ILOCK_EXCL until iread_extents is completely done xfs: verify buffer contents when we skip log replay Dave Chinner (2): xfs: remove WARN when dquot cache insertion fails xfs: don't consider future format versions valid Ye Bin (1): xfs: fix BUG_ON in xfs_getbmap() fs/xfs/libxfs/xfs_bmap.c | 6 ++++++ fs/xfs/libxfs/xfs_inode_fork.c | 16 +++++++++++++++- fs/xfs/libxfs/xfs_inode_fork.h | 6 ++++-- fs/xfs/libxfs/xfs_sb.c | 11 ++++++----- fs/xfs/xfs_bmap_util.c | 14 ++++++-------- fs/xfs/xfs_buf_item_recover.c | 10 ++++++++++ fs/xfs/xfs_dquot.c | 1 - 7 files changed, 47 insertions(+), 17 deletions(-)

2 years, 5 months

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FAILED: patch "[PATCH] mm: take a page reference when removing device exclusive" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 7c7b962938ddda6a9cd095de557ee5250706ea88 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023041157-hyperlink-prognosis-e6db@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: 7c7b962938dd ("mm: take a page reference when removing device exclusive entries") 7d4a8be0c4b2 ("mm/mmu_notifier: remove unused mmu_notifier_range_update_to_read_only export") 369258ce41c6 ("hugetlb: remove duplicate mmu notifications") f268f6cf875f ("mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths") 2ba99c5e0881 ("mm/khugepaged: fix GUP-fast interaction by sending IPI") 8d3c106e19e8 ("mm/khugepaged: take the right locks for page table retraction") 21b85b09527c ("madvise: use zap_page_range_single for madvise dontneed") 131a79b474e9 ("hugetlb: fix vma lock handling during split vma and range unmapping") 34488399fa08 ("mm/madvise: add file and shmem support to MADV_COLLAPSE") 58ac9a8993a1 ("mm/khugepaged: attempt to map file/shmem-backed pte-mapped THPs by pmds") 780a4b6fb865 ("mm/khugepaged: check compound_order() in collapse_pte_mapped_thp()") 40549ba8f8e0 ("hugetlb: use new vma_lock for pmd sharing synchronization") 378397ccb8e5 ("hugetlb: create hugetlb_unmap_file_folio to unmap single file folio") 8d9bfb260814 ("hugetlb: add vma based lock for pmd sharing") 12710fd69634 ("hugetlb: rename vma_shareable() and refactor code") c86272287bc6 ("hugetlb: create remove_inode_single_folio to remove single file folio") 7e1813d48dd3 ("hugetlb: rename remove_huge_page to hugetlb_delete_from_page_cache") 3a47c54f09c4 ("hugetlbfs: revert use i_mmap_rwsem for more pmd sharing synchronization") 188a39725ad7 ("hugetlbfs: revert use i_mmap_rwsem to address page fault/truncate race") 19672a9e4a75 ("mm: convert lock_page_or_retry() to folio_lock_or_retry()") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 7c7b962938ddda6a9cd095de557ee5250706ea88 Mon Sep 17 00:00:00 2001 From: Alistair Popple <apopple(a)nvidia.com> Date: Thu, 30 Mar 2023 12:25:19 +1100 Subject: [PATCH] mm: take a page reference when removing device exclusive entries Device exclusive page table entries are used to prevent CPU access to a page whilst it is being accessed from a device. Typically this is used to implement atomic operations when the underlying bus does not support atomic access. When a CPU thread encounters a device exclusive entry it locks the page and restores the original entry after calling mmu notifiers to signal drivers that exclusive access is no longer available. The device exclusive entry holds a reference to the page making it safe to access the struct page whilst the entry is present. However the fault handling code does not hold the PTL when taking the page lock. This means if there are multiple threads faulting concurrently on the device exclusive entry one will remove the entry whilst others will wait on the page lock without holding a reference. This can lead to threads locking or waiting on a folio with a zero refcount. Whilst mmap_lock prevents the pages getting freed via munmap() they may still be freed by a migration. This leads to warnings such as PAGE_FLAGS_CHECK_AT_FREE due to the page being locked when the refcount drops to zero. Fix this by trying to take a reference on the folio before locking it. The code already checks the PTE under the PTL and aborts if the entry is no longer there. It is also possible the folio has been unmapped, freed and re-allocated allowing a reference to be taken on an unrelated folio. This case is also detected by the PTE check and the folio is unlocked without further changes. Link: https://lkml.kernel.org/r/20230330012519.804116-1-apopple@nvidia.com Fixes: b756a3b5e7ea ("mm: device exclusive memory access") Signed-off-by: Alistair Popple <apopple(a)nvidia.com> Reviewed-by: Ralph Campbell <rcampbell(a)nvidia.com> Reviewed-by: John Hubbard <jhubbard(a)nvidia.com> Acked-by: David Hildenbrand <david(a)redhat.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Christoph Hellwig <hch(a)infradead.org> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/mm/memory.c b/mm/memory.c index f456f3b5049c..01a23ad48a04 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3563,8 +3563,21 @@ static vm_fault_t remove_device_exclusive_entry(struct vm_fault *vmf) struct vm_area_struct *vma = vmf->vma; struct mmu_notifier_range range; - if (!folio_lock_or_retry(folio, vma->vm_mm, vmf->flags)) + /* + * We need a reference to lock the folio because we don't hold + * the PTL so a racing thread can remove the device-exclusive + * entry and unmap it. If the folio is free the entry must + * have been removed already. If it happens to have already + * been re-allocated after being freed all we do is lock and + * unlock it. + */ + if (!folio_try_get(folio)) + return 0; + + if (!folio_lock_or_retry(folio, vma->vm_mm, vmf->flags)) { + folio_put(folio); return VM_FAULT_RETRY; + } mmu_notifier_range_init_owner(&range, MMU_NOTIFY_EXCLUSIVE, 0, vma->vm_mm, vmf->address & PAGE_MASK, (vmf->address & PAGE_MASK) + PAGE_SIZE, NULL); @@ -3577,6 +3590,7 @@ static vm_fault_t remove_device_exclusive_entry(struct vm_fault *vmf) pte_unmap_unlock(vmf->pte, vmf->ptl); folio_unlock(folio); + folio_put(folio); mmu_notifier_invalidate_range_end(&range); return 0;

2 years, 5 months

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FAILED: patch "[PATCH] mm: take a page reference when removing device exclusive" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 7c7b962938ddda6a9cd095de557ee5250706ea88 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023041155-spiny-taking-d67f@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: 7c7b962938dd ("mm: take a page reference when removing device exclusive entries") 7d4a8be0c4b2 ("mm/mmu_notifier: remove unused mmu_notifier_range_update_to_read_only export") 369258ce41c6 ("hugetlb: remove duplicate mmu notifications") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 7c7b962938ddda6a9cd095de557ee5250706ea88 Mon Sep 17 00:00:00 2001 From: Alistair Popple <apopple(a)nvidia.com> Date: Thu, 30 Mar 2023 12:25:19 +1100 Subject: [PATCH] mm: take a page reference when removing device exclusive entries Device exclusive page table entries are used to prevent CPU access to a page whilst it is being accessed from a device. Typically this is used to implement atomic operations when the underlying bus does not support atomic access. When a CPU thread encounters a device exclusive entry it locks the page and restores the original entry after calling mmu notifiers to signal drivers that exclusive access is no longer available. The device exclusive entry holds a reference to the page making it safe to access the struct page whilst the entry is present. However the fault handling code does not hold the PTL when taking the page lock. This means if there are multiple threads faulting concurrently on the device exclusive entry one will remove the entry whilst others will wait on the page lock without holding a reference. This can lead to threads locking or waiting on a folio with a zero refcount. Whilst mmap_lock prevents the pages getting freed via munmap() they may still be freed by a migration. This leads to warnings such as PAGE_FLAGS_CHECK_AT_FREE due to the page being locked when the refcount drops to zero. Fix this by trying to take a reference on the folio before locking it. The code already checks the PTE under the PTL and aborts if the entry is no longer there. It is also possible the folio has been unmapped, freed and re-allocated allowing a reference to be taken on an unrelated folio. This case is also detected by the PTE check and the folio is unlocked without further changes. Link: https://lkml.kernel.org/r/20230330012519.804116-1-apopple@nvidia.com Fixes: b756a3b5e7ea ("mm: device exclusive memory access") Signed-off-by: Alistair Popple <apopple(a)nvidia.com> Reviewed-by: Ralph Campbell <rcampbell(a)nvidia.com> Reviewed-by: John Hubbard <jhubbard(a)nvidia.com> Acked-by: David Hildenbrand <david(a)redhat.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Christoph Hellwig <hch(a)infradead.org> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/mm/memory.c b/mm/memory.c index f456f3b5049c..01a23ad48a04 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3563,8 +3563,21 @@ static vm_fault_t remove_device_exclusive_entry(struct vm_fault *vmf) struct vm_area_struct *vma = vmf->vma; struct mmu_notifier_range range; - if (!folio_lock_or_retry(folio, vma->vm_mm, vmf->flags)) + /* + * We need a reference to lock the folio because we don't hold + * the PTL so a racing thread can remove the device-exclusive + * entry and unmap it. If the folio is free the entry must + * have been removed already. If it happens to have already + * been re-allocated after being freed all we do is lock and + * unlock it. + */ + if (!folio_try_get(folio)) + return 0; + + if (!folio_lock_or_retry(folio, vma->vm_mm, vmf->flags)) { + folio_put(folio); return VM_FAULT_RETRY; + } mmu_notifier_range_init_owner(&range, MMU_NOTIFY_EXCLUSIVE, 0, vma->vm_mm, vmf->address & PAGE_MASK, (vmf->address & PAGE_MASK) + PAGE_SIZE, NULL); @@ -3577,6 +3590,7 @@ static vm_fault_t remove_device_exclusive_entry(struct vm_fault *vmf) pte_unmap_unlock(vmf->pte, vmf->ptl); folio_unlock(folio); + folio_put(folio); mmu_notifier_invalidate_range_end(&range); return 0;

2 years, 5 months

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+ writeback-cgroup-fix-null-ptr-deref-write-in-bdi_split_work_to_wbs.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: writeback, cgroup: fix null-ptr-deref write in bdi_split_work_to_wbs has been added to the -mm mm-hotfixes-unstable branch. Its filename is writeback-cgroup-fix-null-ptr-deref-write-in-bdi_split_work_to_wbs.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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 via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Baokun Li <libaokun1(a)huawei.com> Subject: writeback, cgroup: fix null-ptr-deref write in bdi_split_work_to_wbs Date: Mon, 10 Apr 2023 21:08:26 +0800 KASAN report null-ptr-deref: ================================================================== BUG: KASAN: null-ptr-deref in bdi_split_work_to_wbs+0x5c5/0x7b0 Write of size 8 at addr 0000000000000000 by task sync/943 CPU: 5 PID: 943 Comm: sync Tainted: 6.3.0-rc5-next-20230406-dirty #461 Call Trace: <TASK> dump_stack_lvl+0x7f/0xc0 print_report+0x2ba/0x340 kasan_report+0xc4/0x120 kasan_check_range+0x1b7/0x2e0 __kasan_check_write+0x24/0x40 bdi_split_work_to_wbs+0x5c5/0x7b0 sync_inodes_sb+0x195/0x630 sync_inodes_one_sb+0x3a/0x50 iterate_supers+0x106/0x1b0 ksys_sync+0x98/0x160 [...] ================================================================== The race that causes the above issue is as follows: cpu1 cpu2 -------------------------|------------------------- inode_switch_wbs INIT_WORK(&isw->work, inode_switch_wbs_work_fn) queue_rcu_work(isw_wq, &isw->work) // queue_work async inode_switch_wbs_work_fn wb_put_many(old_wb, nr_switched) percpu_ref_put_many ref->data->release(ref) cgwb_release queue_work(cgwb_release_wq, &wb->release_work) // queue_work async &wb->release_work cgwb_release_workfn ksys_sync iterate_supers sync_inodes_one_sb sync_inodes_sb bdi_split_work_to_wbs kmalloc(sizeof(*work), GFP_ATOMIC) // alloc memory failed percpu_ref_exit ref->data = NULL kfree(data) wb_get(wb) percpu_ref_get(&wb->refcnt) percpu_ref_get_many(ref, 1) atomic_long_add(nr, &ref->data->count) atomic64_add(i, v) // trigger null-ptr-deref bdi_split_work_to_wbs() traverses &bdi->wb_list to split work into all wbs. If the allocation of new work fails, the on-stack fallback will be used and the reference count of the current wb is increased afterwards. If cgroup writeback membership switches occur before getting the reference count and the current wb is released as old_wd, then calling wb_get() or wb_put() will trigger the null pointer dereference above. This issue was introduced in v4.3-rc7 (see fix tag1). Both sync_inodes_sb() and __writeback_inodes_sb_nr() calls to bdi_split_work_to_wbs() can trigger this issue. For scenarios called via sync_inodes_sb(), originally commit 7fc5854f8c6e ("writeback: synchronize sync(2) against cgroup writeback membership switches") reduced the possibility of the issue by adding wb_switch_rwsem, but in v5.14-rc1 (see fix tag2) removed the "inode_io_list_del_locked(inode, old_wb)" from inode_switch_wbs_work_fn() so that wb->state contains WB_has_dirty_io, thus old_wb is not skipped when traversing wbs in bdi_split_work_to_wbs(), and the issue becomes easily reproducible again. To solve this problem, percpu_ref_exit() is called under RCU protection to avoid race between cgwb_release_workfn() and bdi_split_work_to_wbs(). Moreover, replace wb_get() with wb_tryget() in bdi_split_work_to_wbs(), and skip the current wb if wb_tryget() fails because the wb has already been shutdown. Link: https://lkml.kernel.org/r/20230410130826.1492525-1-libaokun1@huawei.com Fixes: b817525a4a80 ("writeback: bdi_writeback iteration must not skip dying ones") Signed-off-by: Baokun Li <libaokun1(a)huawei.com> Reviewed-by: Jan Kara <jack(a)suse.cz> Cc: Alexander Viro <viro(a)zeniv.linux.org.uk> Cc: Andreas Dilger <adilger.kernel(a)dilger.ca> Cc: Christian Brauner <brauner(a)kernel.org> Cc: Dennis Zhou <dennis(a)kernel.org> Cc: Hou Tao <houtao1(a)huawei.com> Cc: Tejun Heo <tj(a)kernel.org> Cc: yangerkun <yangerkun(a)huawei.com> Cc: Zhang Yi <yi.zhang(a)huawei.com> Cc: Jens Axboe <axboe(a)kernel.dk> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/fs-writeback.c | 17 ++++++++++------- mm/backing-dev.c | 12 ++++++++++-- 2 files changed, 20 insertions(+), 9 deletions(-) --- a/fs/fs-writeback.c~writeback-cgroup-fix-null-ptr-deref-write-in-bdi_split_work_to_wbs +++ a/fs/fs-writeback.c @@ -978,6 +978,16 @@ restart: continue; } + /* + * If wb_tryget fails, the wb has been shutdown, skip it. + * + * Pin @wb so that it stays on @bdi->wb_list. This allows + * continuing iteration from @wb after dropping and + * regrabbing rcu read lock. + */ + if (!wb_tryget(wb)) + continue; + /* alloc failed, execute synchronously using on-stack fallback */ work = &fallback_work; *work = *base_work; @@ -986,13 +996,6 @@ restart: work->done = &fallback_work_done; wb_queue_work(wb, work); - - /* - * Pin @wb so that it stays on @bdi->wb_list. This allows - * continuing iteration from @wb after dropping and - * regrabbing rcu read lock. - */ - wb_get(wb); last_wb = wb; rcu_read_unlock(); --- a/mm/backing-dev.c~writeback-cgroup-fix-null-ptr-deref-write-in-bdi_split_work_to_wbs +++ a/mm/backing-dev.c @@ -507,6 +507,15 @@ static LIST_HEAD(offline_cgwbs); static void cleanup_offline_cgwbs_workfn(struct work_struct *work); static DECLARE_WORK(cleanup_offline_cgwbs_work, cleanup_offline_cgwbs_workfn); +static void cgwb_free_rcu(struct rcu_head *rcu_head) +{ + struct bdi_writeback *wb = container_of(rcu_head, + struct bdi_writeback, rcu); + + percpu_ref_exit(&wb->refcnt); + kfree(wb); +} + static void cgwb_release_workfn(struct work_struct *work) { struct bdi_writeback *wb = container_of(work, struct bdi_writeback, @@ -529,11 +538,10 @@ static void cgwb_release_workfn(struct w list_del(&wb->offline_node); spin_unlock_irq(&cgwb_lock); - percpu_ref_exit(&wb->refcnt); wb_exit(wb); bdi_put(bdi); WARN_ON_ONCE(!list_empty(&wb->b_attached)); - kfree_rcu(wb, rcu); + call_rcu(&wb->rcu, cgwb_free_rcu); } static void cgwb_release(struct percpu_ref *refcnt) _ Patches currently in -mm which might be from libaokun1(a)huawei.com are writeback-cgroup-fix-null-ptr-deref-write-in-bdi_split_work_to_wbs.patch

2 years, 5 months

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stable-rc/queue/5.4 baseline: 177 runs, 30 regressions (v5.4.238-146-g74e11f29caf8)

by kernelci.org bot

stable-rc/queue/5.4 baseline: 177 runs, 30 regressions (v5.4.238-146-g74e11f29caf8) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ at91sam9g20ek | arm | lab-broonie | gcc-10 | at91_dt_defconfig | 1 cubietruck | arm | lab-baylibre | gcc-10 | multi_v7_defconfig | 1 hifive-unleashed-a00 | riscv | lab-baylibre | gcc-10 | defconfig | 1 hp-x360-12b-c...4020-octopus | x86_64 | lab-collabora | gcc-10 | x86_64_defcon...6-chromebook | 1 hp-x360-14-G1-sona | x86_64 | lab-collabora | gcc-10 | x86_64_defcon...6-chromebook | 1 qemu_arm64-virt-gicv2 | arm64 | lab-baylibre | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv2 | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv2 | arm64 | lab-broonie | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv2 | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv2 | arm64 | lab-collabora | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv2 | arm64 | lab-collabora | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv2-uefi | arm64 | lab-baylibre | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv2-uefi | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv2-uefi | arm64 | lab-broonie | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv2-uefi | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv2-uefi | arm64 | lab-collabora | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv2-uefi | arm64 | lab-collabora | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv3 | arm64 | lab-baylibre | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv3 | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv3 | arm64 | lab-broonie | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv3 | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv3 | arm64 | lab-collabora | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv3 | arm64 | lab-collabora | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv3-uefi | arm64 | lab-baylibre | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv3-uefi | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv3-uefi | arm64 | lab-broonie | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv3-uefi | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 qemu_arm64-virt-gicv3-uefi | arm64 | lab-collabora | gcc-10 | defconfig | 1 qemu_arm64-virt-gicv3-uefi | arm64 | lab-collabora | gcc-10 | defconfig+arm64-chromebook | 1 sun8i-h3-libretech-all-h3-cc | arm | lab-baylibre | gcc-10 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/job/stable-rc/branch/queue%2F5.4/kernel/v5.4.238-… Test: baseline Tree: stable-rc Branch: queue/5.4 Describe: v5.4.238-146-g74e11f29caf8 URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git SHA: 74e11f29caf85b5329f81c513cf3f0c771b023e6 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ at91sam9g20ek | arm | lab-broonie | gcc-10 | at91_dt_defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a336e476065f312e86be Results: 0 PASS, 1 FAIL, 0 SKIP Full config: at91_dt_defconfig Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a336e476065f312e86bf new failure (last pass: v5.4.238-146-g52ee9b2b843c) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ cubietruck | arm | lab-baylibre | gcc-10 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a46525dd5770ac2e8603 Results: 5 PASS, 1 FAIL, 1 SKIP Full config: multi_v7_defconfig Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.bootrr.deferred-probe-empty: https://kernelci.org/test/case/id/6435a46525dd5770ac2e8608 failing since 71 days (last pass: v5.4.230-81-g2ad0dc06d587, first fail: v5.4.230-108-g761a8268d868) 2023-04-11T18:17:50.860724 <8>[ 9.914192] <LAVA_SIGNAL_ENDRUN 0_dmesg 3486486_1.5.2.4.1> 2023-04-11T18:17:50.970751 / # # 2023-04-11T18:17:51.073812 export SHELL=/bin/sh 2023-04-11T18:17:51.074697 # 2023-04-11T18:17:51.176746 / # export SHELL=/bin/sh. /lava-3486486/environment 2023-04-11T18:17:51.177652 2023-04-11T18:17:51.280099 / # . /lava-3486486/environment/lava-3486486/bin/lava-test-runner /lava-3486486/1 2023-04-11T18:17:51.281375 2023-04-11T18:17:51.286189 / # /lava-3486486/bin/lava-test-runner /lava-3486486/1 2023-04-11T18:17:51.367383 + export 'TESTRUN_ID=1_bootrr' ... (11 line(s) more) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ hifive-unleashed-a00 | riscv | lab-baylibre | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a09db150f8cbe42e86b1 Results: 3 PASS, 2 FAIL, 2 SKIP Full config: defconfig Compiler: gcc-10 (riscv64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.dmesg.crit: https://kernelci.org/test/case/id/6435a09db150f8cbe42e86ba failing since 174 days (last pass: v5.4.219-270-gde284a6cd1e4, first fail: v5.4.219-266-g5eb28a6c7901) 3 lines 2023-04-11T18:01:40.475541 / # 2023-04-11T18:01:40.487124 2023-04-11T18:01:40.589641 / # # 2023-04-11T18:01:40.599093 # 2023-04-11T18:01:40.700501 / # export SHELL=/bin/sh 2023-04-11T18:01:40.711175 export SHELL=/bin/sh 2023-04-11T18:01:40.812453 / # . /lava-3486395/environment 2023-04-11T18:01:40.823173 . /lava-3486395/environment 2023-04-11T18:01:40.924462 / # /lava-3486395/bin/lava-test-runner /lava-3486395/0 2023-04-11T18:01:40.935093 /lava-3486395/bin/lava-test-runner /lava-3486395/0 ... (8 line(s) more) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ hp-x360-12b-c...4020-octopus | x86_64 | lab-collabora | gcc-10 | x86_64_defcon...6-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a5654737999e182e85ed Results: 5 PASS, 1 FAIL, 1 SKIP Full config: x86_64_defconfig+x86-chromebook Compiler: gcc-10 (gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.bootrr.deferred-probe-empty: https://kernelci.org/test/case/id/6435a5654737999e182e85f2 failing since 13 days (last pass: v5.4.238-29-g39c31e43e3b2b, first fail: v5.4.238-60-gcf51829325af) 2023-04-11T18:22:13.142083 + set<8>[ 10.423617] <LAVA_SIGNAL_ENDRUN 0_dmesg 9941760_1.4.2.3.1> 2023-04-11T18:22:13.142175 +x 2023-04-11T18:22:13.244252 2023-04-11T18:22:13.345257 / # #export SHELL=/bin/sh 2023-04-11T18:22:13.345426 2023-04-11T18:22:13.446411 / # export SHELL=/bin/sh. /lava-9941760/environment 2023-04-11T18:22:13.446585 2023-04-11T18:22:13.547518 / # . /lava-9941760/environment/lava-9941760/bin/lava-test-runner /lava-9941760/1 2023-04-11T18:22:13.547826 2023-04-11T18:22:13.552412 / # /lava-9941760/bin/lava-test-runner /lava-9941760/1 ... (12 line(s) more) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ hp-x360-14-G1-sona | x86_64 | lab-collabora | gcc-10 | x86_64_defcon...6-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a35e076fb712472e85f4 Results: 5 PASS, 1 FAIL, 1 SKIP Full config: x86_64_defconfig+x86-chromebook Compiler: gcc-10 (gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.bootrr.deferred-probe-empty: https://kernelci.org/test/case/id/6435a35e076fb712472e85f9 failing since 13 days (last pass: v5.4.238-29-g39c31e43e3b2b, first fail: v5.4.238-60-gcf51829325af) 2023-04-11T18:13:30.304762 + set +x<8>[ 13.069545] <LAVA_SIGNAL_ENDRUN 0_dmesg 9941795_1.4.2.3.1> 2023-04-11T18:13:30.304841 2023-04-11T18:13:30.406863 # 2023-04-11T18:13:30.508003 / # #export SHELL=/bin/sh 2023-04-11T18:13:30.508188 2023-04-11T18:13:30.609273 / # export SHELL=/bin/sh. /lava-9941795/environment 2023-04-11T18:13:30.610004 2023-04-11T18:13:30.711716 / # . /lava-9941795/environment/lava-9941795/bin/lava-test-runner /lava-9941795/1 2023-04-11T18:13:30.712788 2023-04-11T18:13:30.718063 / # /lava-9941795/bin/lava-test-runner /lava-9941795/1 ... (12 line(s) more) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv2 | arm64 | lab-baylibre | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a3dd8cf1070f1a2e8659 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a3dd8cf1070f1a2e865a failing since 336 days (last pass: v5.4.191-77-g1a3b249e415b, first fail: v5.4.191-125-g5917d1547e6e) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv2 | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a541e8e1806cef2e85e9 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a541e8e1806cef2e85ea failing since 259 days (last pass: v5.4.180-77-g7de29e82b9db, first fail: v5.4.207-73-ga2480f1b1dda1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv2 | arm64 | lab-broonie | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a612f196367b3d2e85f4 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a612f196367b3d2e85f5 failing since 336 days (last pass: v5.4.191-77-g1a3b249e415b, first fail: v5.4.191-125-g5917d1547e6e) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv2 | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a7a33e18049eb02e860c Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a7a33e18049eb02e860d failing since 259 days (last pass: v5.4.180-77-g7de29e82b9db, first fail: v5.4.207-73-ga2480f1b1dda1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv2 | arm64 | lab-collabora | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a3e56e8a7727772e85fc Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a3e56e8a7727772e85fd failing since 336 days (last pass: v5.4.191-77-g1a3b249e415b, first fail: v5.4.191-125-g5917d1547e6e) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv2 | arm64 | lab-collabora | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a52ce61b7078122e8638 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a52ce61b7078122e8639 failing since 259 days (last pass: v5.4.180-77-g7de29e82b9db, first fail: v5.4.207-73-ga2480f1b1dda1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv2-uefi | arm64 | lab-baylibre | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a3e0ce4b8f00f42e85fb Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a3e0ce4b8f00f42e85fc failing since 336 days (last pass: v5.4.191-77-g1a3b249e415b, first fail: v5.4.191-125-g5917d1547e6e) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv2-uefi | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a543e8e1806cef2e85fd Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a543e8e1806cef2e85fe failing since 259 days (last pass: v5.4.180-77-g7de29e82b9db, first fail: v5.4.207-73-ga2480f1b1dda1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv2-uefi | arm64 | lab-broonie | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a626f99f366d442e85ff Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a626f99f366d442e8600 failing since 336 days (last pass: v5.4.191-77-g1a3b249e415b, first fail: v5.4.191-125-g5917d1547e6e) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv2-uefi | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a7cb64f6fd00f52e85ff Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a7cb64f6fd00f52e8600 failing since 259 days (last pass: v5.4.180-77-g7de29e82b9db, first fail: v5.4.207-73-ga2480f1b1dda1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv2-uefi | arm64 | lab-collabora | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a471fd3fb9a7452e85f3 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a471fd3fb9a7452e85f4 failing since 336 days (last pass: v5.4.191-77-g1a3b249e415b, first fail: v5.4.191-125-g5917d1547e6e) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv2-uefi | arm64 | lab-collabora | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a541e8e1806cef2e85ec Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a541e8e1806cef2e85ed failing since 259 days (last pass: v5.4.180-77-g7de29e82b9db, first fail: v5.4.207-73-ga2480f1b1dda1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv3 | arm64 | lab-baylibre | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a3dcce4b8f00f42e85f5 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a3dcce4b8f00f42e85f6 failing since 336 days (last pass: v5.4.191-77-g1a3b249e415b, first fail: v5.4.191-125-g5917d1547e6e) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv3 | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a54030e5929f332e8657 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a54030e5929f332e8658 failing since 259 days (last pass: v5.4.180-77-g7de29e82b9db, first fail: v5.4.207-73-ga2480f1b1dda1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv3 | arm64 | lab-broonie | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a611f196367b3d2e85f1 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a611f196367b3d2e85f2 failing since 336 days (last pass: v5.4.191-77-g1a3b249e415b, first fail: v5.4.191-125-g5917d1547e6e) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv3 | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a7a136bc240d992e8642 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a7a136bc240d992e8643 failing since 259 days (last pass: v5.4.180-77-g7de29e82b9db, first fail: v5.4.207-73-ga2480f1b1dda1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv3 | arm64 | lab-collabora | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a3ec3a7f74a66b2e85fe Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a3ec3a7f74a66b2e85ff failing since 336 days (last pass: v5.4.191-77-g1a3b249e415b, first fail: v5.4.191-125-g5917d1547e6e) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv3 | arm64 | lab-collabora | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a518813ed0b8292e8694 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a518813ed0b8292e8695 failing since 259 days (last pass: v5.4.180-77-g7de29e82b9db, first fail: v5.4.207-73-ga2480f1b1dda1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv3-uefi | arm64 | lab-baylibre | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a3dece4b8f00f42e85f8 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a3dece4b8f00f42e85f9 failing since 336 days (last pass: v5.4.191-77-g1a3b249e415b, first fail: v5.4.191-125-g5917d1547e6e) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv3-uefi | arm64 | lab-baylibre | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a542e8e1806cef2e85ef Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a542e8e1806cef2e85f0 failing since 259 days (last pass: v5.4.180-77-g7de29e82b9db, first fail: v5.4.207-73-ga2480f1b1dda1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv3-uefi | arm64 | lab-broonie | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a625f99f366d442e85fa Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a625f99f366d442e85fb failing since 336 days (last pass: v5.4.191-77-g1a3b249e415b, first fail: v5.4.191-125-g5917d1547e6e) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv3-uefi | arm64 | lab-broonie | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a7c9dab68b183b2e863b Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a7c9dab68b183b2e863c failing since 259 days (last pass: v5.4.180-77-g7de29e82b9db, first fail: v5.4.207-73-ga2480f1b1dda1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv3-uefi | arm64 | lab-collabora | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a464fd3fb9a7452e85ea Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a464fd3fb9a7452e85eb failing since 336 days (last pass: v5.4.191-77-g1a3b249e415b, first fail: v5.4.191-125-g5917d1547e6e) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ qemu_arm64-virt-gicv3-uefi | arm64 | lab-collabora | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a540e8e1806cef2e85e6 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/6435a540e8e1806cef2e85e7 failing since 259 days (last pass: v5.4.180-77-g7de29e82b9db, first fail: v5.4.207-73-ga2480f1b1dda1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+---------------+----------+------------------------------+------------ sun8i-h3-libretech-all-h3-cc | arm | lab-baylibre | gcc-10 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a352ae097f0fd82e8660 Results: 5 PASS, 1 FAIL, 1 SKIP Full config: multi_v7_defconfig Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.238-146-g74e11f29caf… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.bootrr.deferred-probe-empty: https://kernelci.org/test/case/id/6435a352ae097f0fd82e8665 failing since 69 days (last pass: v5.4.230-108-g761a8268d868, first fail: v5.4.230-109-g0a6085bff265) 2023-04-11T18:13:13.971339 / # # 2023-04-11T18:13:14.073019 export SHELL=/bin/sh 2023-04-11T18:13:14.073371 # 2023-04-11T18:13:14.174732 / # export SHELL=/bin/sh. /lava-3486491/environment 2023-04-11T18:13:14.175239 2023-04-11T18:13:14.276593 / # . /lava-3486491/environment/lava-3486491/bin/lava-test-runner /lava-3486491/1 2023-04-11T18:13:14.277211 2023-04-11T18:13:14.282719 / # /lava-3486491/bin/lava-test-runner /lava-3486491/1 2023-04-11T18:13:14.376600 + export 'TESTRUN_ID=1_bootrr' 2023-04-11T18:13:14.377083 + cd /lava-3486491/1/tests/1_bootrr ... 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stable-rc/queue/5.10 baseline: 181 runs, 8 regressions (v5.10.176-223-gfbdc537713e0)

by kernelci.org bot

stable-rc/queue/5.10 baseline: 181 runs, 8 regressions (v5.10.176-223-gfbdc537713e0) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+-----------------+----------+------------------------------+------------ bcm2711-rpi-4-b | arm64 | lab-linaro-lkft | gcc-10 | defconfig | 1 beaglebone-black | arm | lab-broonie | gcc-10 | omap2plus_defconfig | 1 cubietruck | arm | lab-baylibre | gcc-10 | multi_v7_defconfig | 1 hp-x360-12b-c...4020-octopus | x86_64 | lab-collabora | gcc-10 | x86_64_defcon...6-chromebook | 1 hp-x360-14-G1-sona | x86_64 | lab-collabora | gcc-10 | x86_64_defcon...6-chromebook | 1 rk3399-gru-kevin | arm64 | lab-collabora | gcc-10 | defconfig+arm64-chromebook | 2 sun8i-h3-libretech-all-h3-cc | arm | lab-baylibre | gcc-10 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/job/stable-rc/branch/queue%2F5.10/kernel/v5.10.17… Test: baseline Tree: stable-rc Branch: queue/5.10 Describe: v5.10.176-223-gfbdc537713e0 URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git SHA: fbdc537713e0b33afb98fe87cbdb62e843ca2ff5 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+-----------------+----------+------------------------------+------------ bcm2711-rpi-4-b | arm64 | lab-linaro-lkft | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/64359fa7ac01bf2fa32e8613 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… HTML log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.login: https://kernelci.org/test/case/id/64359fa7ac01bf2fa32e8614 new failure (last pass: v5.10.176-223-gb73b161a0e35) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+-----------------+----------+------------------------------+------------ beaglebone-black | arm | lab-broonie | gcc-10 | omap2plus_defconfig | 1 Details: https://kernelci.org/test/plan/id/64359f28ac07986a652e85e6 Results: 51 PASS, 4 FAIL, 1 SKIP Full config: omap2plus_defconfig Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… HTML log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.bootrr.deferred-probe-empty: https://kernelci.org/test/case/id/64359f28ac07986a652e861c failing since 56 days (last pass: v5.10.167-127-g921934d621e4, first fail: v5.10.167-139-gf9519a5a1701) 2023-04-11T17:55:25.494755 <8>[ 18.802610] <LAVA_SIGNAL_ENDRUN 0_dmesg 312994_1.5.2.4.1> 2023-04-11T17:55:25.602148 / # # 2023-04-11T17:55:25.704415 export SHELL=/bin/sh 2023-04-11T17:55:25.705216 # 2023-04-11T17:55:25.807289 / # export SHELL=/bin/sh. /lava-312994/environment 2023-04-11T17:55:25.808158 2023-04-11T17:55:25.910395 / # . /lava-312994/environment/lava-312994/bin/lava-test-runner /lava-312994/1 2023-04-11T17:55:25.911654 2023-04-11T17:55:25.915327 / # /lava-312994/bin/lava-test-runner /lava-312994/1 2023-04-11T17:55:26.013785 + export 'TESTRUN_ID=1_bootrr' ... (11 line(s) more) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+-----------------+----------+------------------------------+------------ cubietruck | arm | lab-baylibre | gcc-10 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a21bfa79b3a6e42e8641 Results: 5 PASS, 1 FAIL, 1 SKIP Full config: multi_v7_defconfig Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… HTML log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.bootrr.deferred-probe-empty: https://kernelci.org/test/case/id/6435a21bfa79b3a6e42e8646 failing since 75 days (last pass: v5.10.165-76-g5c2e982fcf18, first fail: v5.10.165-77-g4600242c13ed) 2023-04-11T18:08:07.427430 <8>[ 11.013563] <LAVA_SIGNAL_ENDRUN 0_dmesg 3486434_1.5.2.4.1> 2023-04-11T18:08:07.537089 / # # 2023-04-11T18:08:07.640090 export SHELL=/bin/sh 2023-04-11T18:08:07.640882 # 2023-04-11T18:08:07.742531 / # export SHELL=/bin/sh. /lava-3486434/environment 2023-04-11T18:08:07.743111 2023-04-11T18:08:07.844854 / # . /lava-3486434/environment/lava-3486434/bin/lava-test-runner /lava-3486434/1 2023-04-11T18:08:07.846148 2023-04-11T18:08:07.851256 / # /lava-3486434/bin/lava-test-runner /lava-3486434/1 2023-04-11T18:08:07.895351 <3>[ 11.451384] Bluetooth: hci0: command 0xfc18 tx timeout ... (12 line(s) more) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+-----------------+----------+------------------------------+------------ hp-x360-12b-c...4020-octopus | x86_64 | lab-collabora | gcc-10 | x86_64_defcon...6-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a53930e5929f332e8623 Results: 6 PASS, 1 FAIL, 0 SKIP Full config: x86_64_defconfig+x86-chromebook Compiler: gcc-10 (gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… HTML log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.bootrr.deferred-probe-empty: https://kernelci.org/test/case/id/6435a53930e5929f332e8628 failing since 12 days (last pass: v5.10.176-61-g2332301f1fab4, first fail: v5.10.176-104-g2b4187983740) 2023-04-11T18:21:29.228513 + set +x 2023-04-11T18:21:29.235340 <8>[ 10.737115] <LAVA_SIGNAL_ENDRUN 0_dmesg 9941495_1.4.2.3.1> 2023-04-11T18:21:29.340077 / # # 2023-04-11T18:21:29.441176 export SHELL=/bin/sh 2023-04-11T18:21:29.441401 # 2023-04-11T18:21:29.542296 / # export SHELL=/bin/sh. /lava-9941495/environment 2023-04-11T18:21:29.542543 2023-04-11T18:21:29.643500 / # . /lava-9941495/environment/lava-9941495/bin/lava-test-runner /lava-9941495/1 2023-04-11T18:21:29.643855 2023-04-11T18:21:29.648123 / # /lava-9941495/bin/lava-test-runner /lava-9941495/1 ... (12 line(s) more) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+-----------------+----------+------------------------------+------------ hp-x360-14-G1-sona | x86_64 | lab-collabora | gcc-10 | x86_64_defcon...6-chromebook | 1 Details: https://kernelci.org/test/plan/id/6435a30d1ee6f6a8bf2e85f6 Results: 6 PASS, 1 FAIL, 0 SKIP Full config: x86_64_defconfig+x86-chromebook Compiler: gcc-10 (gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… HTML log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.bootrr.deferred-probe-empty: https://kernelci.org/test/case/id/6435a30d1ee6f6a8bf2e85fb failing since 12 days (last pass: v5.10.176-61-g2332301f1fab4, first fail: v5.10.176-104-g2b4187983740) 2023-04-11T18:12:11.384631 + set +x<8>[ 12.888932] <LAVA_SIGNAL_ENDRUN 0_dmesg 9941535_1.4.2.3.1> 2023-04-11T18:12:11.385065 2023-04-11T18:12:11.492532 /# 2023-04-11T18:12:11.595625 # #export SHELL=/bin/sh 2023-04-11T18:12:11.596328 2023-04-11T18:12:11.698287 / # export SHELL=/bin/sh. /lava-9941535/environment 2023-04-11T18:12:11.699118 2023-04-11T18:12:11.801253 / # . /lava-9941535/environment/lava-9941535/bin/lava-test-runner /lava-9941535/1 2023-04-11T18:12:11.802456 2023-04-11T18:12:11.807581 / # /lava-9941535/bin/lava-test-runner /lava-9941535/1 ... (12 line(s) more) platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+-----------------+----------+------------------------------+------------ rk3399-gru-kevin | arm64 | lab-collabora | gcc-10 | defconfig+arm64-chromebook | 2 Details: https://kernelci.org/test/plan/id/6435a09cb150f8cbe42e8656 Results: 84 PASS, 2 FAIL, 1 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… HTML log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.bootrr.rockchip-usb2phy1-probed: https://kernelci.org/test/case/id/6435a09cb150f8cbe42e865c failing since 28 days (last pass: v5.10.172-529-g06956b9e9396, first fail: v5.10.173-69-gfcbe6bd469ed) 2023-04-11T18:01:48.909824 <8>[ 61.042851] <LAVA_SIGNAL_TESTCASE TEST_CASE_ID=rockchip-usb2phy0-probed RESULT=fail> 2023-04-11T18:01:49.935492 /lava-9941655/1/../bin/lava-test-case * baseline.bootrr.rockchip-usb2phy0-probed: https://kernelci.org/test/case/id/6435a09cb150f8cbe42e865d failing since 28 days (last pass: v5.10.172-529-g06956b9e9396, first fail: v5.10.173-69-gfcbe6bd469ed) 2023-04-11T18:01:47.873525 <8>[ 60.005389] <LAVA_SIGNAL_TESTCASE TEST_CASE_ID=rockchip-usb2phy-driver-present RESULT=pass> 2023-04-11T18:01:48.898535 /lava-9941655/1/../bin/lava-test-case platform | arch | lab | compiler | defconfig | regressions -----------------------------+--------+-----------------+----------+------------------------------+------------ sun8i-h3-libretech-all-h3-cc | arm | lab-baylibre | gcc-10 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/6435a1bb36e838891d2e8607 Results: 5 PASS, 1 FAIL, 1 SKIP Full config: multi_v7_defconfig Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… HTML log: https://storage.kernelci.org//stable-rc/queue-5.10/v5.10.176-223-gfbdc53771… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2023… * baseline.bootrr.deferred-probe-empty: https://kernelci.org/test/case/id/6435a1bb36e838891d2e860c failing since 68 days (last pass: v5.10.165-139-gefb57ce0f880, first fail: v5.10.165-149-ge30e8271d674) 2023-04-11T18:06:30.872978 / # # 2023-04-11T18:06:30.974889 export SHELL=/bin/sh 2023-04-11T18:06:30.975647 # 2023-04-11T18:06:31.077284 / # export SHELL=/bin/sh. /lava-3486427/environment 2023-04-11T18:06:31.078017 2023-04-11T18:06:31.179776 / # . /lava-3486427/environment/lava-3486427/bin/lava-test-runner /lava-3486427/1 2023-04-11T18:06:31.180700 2023-04-11T18:06:31.199251 / # /lava-3486427/bin/lava-test-runner /lava-3486427/1 2023-04-11T18:06:31.304334 + export 'TESTRUN_ID=1_bootrr' 2023-04-11T18:06:31.305018 + cd /lava-3486427/1/tests/1_bootrr ... 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2 years, 5 months

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+ mm-vmemmap-devdax-fix-kernel-crash-when-probing-devdax-devices.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: mm/vmemmap/devdax: fix kernel crash when probing devdax devices has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-vmemmap-devdax-fix-kernel-crash-when-probing-devdax-devices.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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 via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: "Aneesh Kumar K.V" <aneesh.kumar(a)linux.ibm.com> Subject: mm/vmemmap/devdax: fix kernel crash when probing devdax devices Date: Tue, 11 Apr 2023 19:52:13 +0530 commit 4917f55b4ef9 ("mm/sparse-vmemmap: improve memory savings for compound devmaps") added support for using optimized vmmemap for devdax devices. But how vmemmap mappings are created are architecture specific. For example, powerpc with hash translation doesn't have vmemmap mappings in init_mm page table instead they are bolted table entries in the hardware page table vmemmap_populate_compound_pages() used by vmemmap optimization code is not aware of these architecture-specific mapping. Hence allow architecture to opt for this feature. I selected architectures supporting HUGETLB_PAGE_OPTIMIZE_VMEMMAP option as also supporting this feature. This patch fixes the below crash on ppc64. BUG: Unable to handle kernel data access on write at 0xc00c000100400038 Faulting instruction address: 0xc000000001269d90 Oops: Kernel access of bad area, sig: 11 [#1] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries Modules linked in: CPU: 7 PID: 1 Comm: swapper/0 Not tainted 6.3.0-rc5-150500.34-default+ #2 5c90a668b6bbd142599890245c2fb5de19d7d28a Hardware name: IBM,9009-42G POWER9 (raw) 0x4e0202 0xf000005 of:IBM,FW950.40 (VL950_099) hv:phyp pSeries NIP: c000000001269d90 LR: c0000000004c57d4 CTR: 0000000000000000 REGS: c000000003632c30 TRAP: 0300 Not tainted (6.3.0-rc5-150500.34-default+) MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 24842228 XER: 00000000 CFAR: c0000000004c57d0 DAR: c00c000100400038 DSISR: 42000000 IRQMASK: 0 .... NIP [c000000001269d90] __init_single_page.isra.74+0x14/0x4c LR [c0000000004c57d4] __init_zone_device_page+0x44/0xd0 Call Trace: [c000000003632ed0] [c000000003632f60] 0xc000000003632f60 (unreliable) [c000000003632f10] [c0000000004c5ca0] memmap_init_zone_device+0x170/0x250 [c000000003632fe0] [c0000000005575f8] memremap_pages+0x2c8/0x7f0 [c0000000036330c0] [c000000000557b5c] devm_memremap_pages+0x3c/0xa0 [c000000003633100] [c000000000d458a8] dev_dax_probe+0x108/0x3e0 [c0000000036331a0] [c000000000d41430] dax_bus_probe+0xb0/0x140 [c0000000036331d0] [c000000000cef27c] really_probe+0x19c/0x520 [c000000003633260] [c000000000cef6b4] __driver_probe_device+0xb4/0x230 [c0000000036332e0] [c000000000cef888] driver_probe_device+0x58/0x120 [c000000003633320] [c000000000cefa6c] __device_attach_driver+0x11c/0x1e0 [c0000000036333a0] [c000000000cebc58] bus_for_each_drv+0xa8/0x130 [c000000003633400] [c000000000ceefcc] __device_attach+0x15c/0x250 [c0000000036334a0] [c000000000ced458] bus_probe_device+0x108/0x110 [c0000000036334f0] [c000000000ce92dc] device_add+0x7fc/0xa10 [c0000000036335b0] [c000000000d447c8] devm_create_dev_dax+0x1d8/0x530 [c000000003633640] [c000000000d46b60] __dax_pmem_probe+0x200/0x270 [c0000000036337b0] [c000000000d46bf0] dax_pmem_probe+0x20/0x70 [c0000000036337d0] [c000000000d2279c] nvdimm_bus_probe+0xac/0x2b0 [c000000003633860] [c000000000cef27c] really_probe+0x19c/0x520 [c0000000036338f0] [c000000000cef6b4] __driver_probe_device+0xb4/0x230 [c000000003633970] [c000000000cef888] driver_probe_device+0x58/0x120 [c0000000036339b0] [c000000000cefd08] __driver_attach+0x1d8/0x240 [c000000003633a30] [c000000000cebb04] bus_for_each_dev+0xb4/0x130 [c000000003633a90] [c000000000cee564] driver_attach+0x34/0x50 [c000000003633ab0] [c000000000ced878] bus_add_driver+0x218/0x300 [c000000003633b40] [c000000000cf1144] driver_register+0xa4/0x1b0 [c000000003633bb0] [c000000000d21a0c] __nd_driver_register+0x5c/0x100 [c000000003633c10] [c00000000206a2e8] dax_pmem_init+0x34/0x48 [c000000003633c30] [c0000000000132d0] do_one_initcall+0x60/0x320 [c000000003633d00] [c0000000020051b0] kernel_init_freeable+0x360/0x400 [c000000003633de0] [c000000000013764] kernel_init+0x34/0x1d0 [c000000003633e50] [c00000000000de14] ret_from_kernel_thread+0x5c/0x64 Link: https://lkml.kernel.org/r/20230411142214.64464-1-aneesh.kumar@linux.ibm.com Fixes: 4917f55b4ef9 ("mm/sparse-vmemmap: improve memory savings for compound devmaps") Signed-off-by: Aneesh Kumar K.V <aneesh.kumar(a)linux.ibm.com> Reported-by: Tarun Sahu <tsahu(a)linux.ibm.com> Cc: Joao Martins <joao.m.martins(a)oracle.com> Cc: Muchun Song <songmuchun(a)bytedance.com> Cc: Dan Williams <dan.j.williams(a)intel.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/mm.h | 16 ++++++++++++++++ mm/page_alloc.c | 9 ++++++--- mm/sparse-vmemmap.c | 3 +-- 3 files changed, 23 insertions(+), 5 deletions(-) --- a/include/linux/mm.h~mm-vmemmap-devdax-fix-kernel-crash-when-probing-devdax-devices +++ a/include/linux/mm.h @@ -3425,6 +3425,22 @@ void vmemmap_populate_print_last(void); void vmemmap_free(unsigned long start, unsigned long end, struct vmem_altmap *altmap); #endif + +#ifdef CONFIG_ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP +static inline bool vmemmap_can_optimize(struct vmem_altmap *altmap, + struct dev_pagemap *pgmap) +{ + return is_power_of_2(sizeof(struct page)) && + pgmap && (pgmap_vmemmap_nr(pgmap) > 1) && !altmap; +} +#else +static inline bool vmemmap_can_optimize(struct vmem_altmap *altmap, + struct dev_pagemap *pgmap) +{ + return false; +} +#endif + void register_page_bootmem_memmap(unsigned long section_nr, struct page *map, unsigned long nr_pages); --- a/mm/page_alloc.c~mm-vmemmap-devdax-fix-kernel-crash-when-probing-devdax-devices +++ a/mm/page_alloc.c @@ -6905,10 +6905,13 @@ static void __ref __init_zone_device_pag * of an altmap. See vmemmap_populate_compound_pages(). */ static inline unsigned long compound_nr_pages(struct vmem_altmap *altmap, + struct dev_pagemap *pgmap, unsigned long nr_pages) { - return is_power_of_2(sizeof(struct page)) && - !altmap ? 2 * (PAGE_SIZE / sizeof(struct page)) : nr_pages; + if (vmemmap_can_optimize(altmap, pgmap)) + return 2 * (PAGE_SIZE / sizeof(struct page)); + else + return nr_pages; } static void __ref memmap_init_compound(struct page *head, @@ -6973,7 +6976,7 @@ void __ref memmap_init_zone_device(struc continue; memmap_init_compound(page, pfn, zone_idx, nid, pgmap, - compound_nr_pages(altmap, pfns_per_compound)); + compound_nr_pages(altmap, pgmap, pfns_per_compound)); } pr_info("%s initialised %lu pages in %ums\n", __func__, --- a/mm/sparse-vmemmap.c~mm-vmemmap-devdax-fix-kernel-crash-when-probing-devdax-devices +++ a/mm/sparse-vmemmap.c @@ -458,8 +458,7 @@ struct page * __meminit __populate_secti !IS_ALIGNED(nr_pages, PAGES_PER_SUBSECTION))) return NULL; - if (is_power_of_2(sizeof(struct page)) && - pgmap && pgmap_vmemmap_nr(pgmap) > 1 && !altmap) + if (vmemmap_can_optimize(altmap, pgmap)) r = vmemmap_populate_compound_pages(pfn, start, end, nid, pgmap); else r = vmemmap_populate(start, end, nid, altmap); _ Patches currently in -mm which might be from aneesh.kumar(a)linux.ibm.com are mm-vmemmap-devdax-fix-kernel-crash-when-probing-devdax-devices.patch

2 years, 5 months

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