syzbot


WARNING in delayed_work_timer_fn

Status: upstream: reported syz repro on 2023/06/23 03:48
Subsystems: arm
[Documentation on labels]
Reported-by: syzbot+e13e654d315d4da1277c@syzkaller.appspotmail.com
First crash: 577d, last: 1d09h
Discussions (7)
Title Replies (including bot) Last reply
[syzbot] [arm?] WARNING in delayed_work_timer_fn 0 (2) 2024/12/13 12:30
[syzbot] Monthly arm report (Dec 2024) 0 (1) 2024/12/05 09:08
[syzbot] Monthly arm report (Nov 2024) 0 (1) 2024/11/04 08:49
[syzbot] Monthly arm report (Sep 2024) 0 (1) 2024/09/02 13:03
[syzbot] Monthly arm report (May 2024) 0 (1) 2024/05/31 06:50
[syzbot] Monthly arm report (Apr 2024) 0 (1) 2024/04/30 07:12
[syzbot] Monthly arm report (Mar 2024) 0 (1) 2024/03/27 09:21
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in delayed_work_timer_fn (2) 33 7d11h 402d 0/3 upstream: reported on 2023/12/11 13:19
linux-6.1 WARNING in delayed_work_timer_fn 2 541d 644d 0/3 auto-obsoleted due to no activity on 2023/11/02 17:34

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6023 at kernel/workqueue.c:2257 current_wq_worker kernel/workqueue_internal.h:69 [inline]
WARNING: CPU: 1 PID: 6023 at kernel/workqueue.c:2257 is_chained_work kernel/workqueue.c:2199 [inline]
WARNING: CPU: 1 PID: 6023 at kernel/workqueue.c:2257 __queue_work+0xe50/0x1308 kernel/workqueue.c:2256
Modules linked in:
CPU: 1 UID: 0 PID: 6023 Comm: klogd Not tainted 6.13.0-rc2-syzkaller-g2e7aff49b5da #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __queue_work+0xe50/0x1308 kernel/workqueue_internal.h:69
lr : current_wq_worker kernel/workqueue_internal.h:69 [inline]
lr : is_chained_work kernel/workqueue.c:2199 [inline]
lr : __queue_work+0xe50/0x1308 kernel/workqueue.c:2256
sp : ffff800080017b40
x29: ffff800080017b90 x28: dfff800000000000 x27: ffff700010002f88
x26: dfff800000000000 x25: ffff0000d1c63800 x24: 0000000000000008
x23: 1fffe0001b14d791 x22: ffff0000d1c639c0 x21: 0000000000000100
x20: ffff0000d8a6bc80 x19: ffff0000da2f0930 x18: 1fffe000366c5e7e
x17: ffff800123d64000 x16: ffff80008326d65c x15: 0000000000000002
x14: 1ffff00011f300ca x13: dfff800000000000 x12: 00000000b1aebe1c
x11: 00000000beaa9035 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000d8a6bc80 x7 : ffff8000805819c0 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008df6a320
x2 : ffff0000da2f0930 x1 : 0000000000000100 x0 : 0000000000000000
Call trace:
 current_wq_worker kernel/workqueue_internal.h:69 [inline] (P)
 is_chained_work kernel/workqueue.c:2199 [inline] (P)
 __queue_work+0xe50/0x1308 kernel/workqueue.c:2256 (P)
 current_wq_worker kernel/workqueue_internal.h:69 [inline] (L)
 is_chained_work kernel/workqueue.c:2199 [inline] (L)
 __queue_work+0xe50/0x1308 kernel/workqueue.c:2256 (L)
 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2485
 call_timer_fn+0x1b4/0x8b8 kernel/time/timer.c:1793
 expire_timers kernel/time/timer.c:1839 [inline]
 __run_timers kernel/time/timer.c:2418 [inline]
 __run_timer_base+0x59c/0x7b4 kernel/time/timer.c:2430
 run_timer_base kernel/time/timer.c:2439 [inline]
 run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2449
 handle_softirqs+0x320/0xd34 kernel/softirq.c:554
 __do_softirq+0x14/0x20 kernel/softirq.c:588
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:891
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86
 invoke_softirq kernel/softirq.c:435 [inline]
 __irq_exit_rcu+0x1d8/0x544 kernel/softirq.c:655
 irq_exit_rcu+0x14/0x84 kernel/softirq.c:671
 __el1_irq arch/arm64/kernel/entry-common.c:561 [inline]
 el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:575
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:580
 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:596
 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] (P)
 arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline] (P)
 raw_spin_rq_unlock_irq kernel/sched/sched.h:1526 [inline] (P)
 finish_lock_switch+0xc0/0x1e4 kernel/sched/core.c:5123 (P)
 raw_spin_rq_unlock_irq kernel/sched/sched.h:1526 [inline] (L)
 finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5123 (L)
 finish_task_switch+0x120/0x608 kernel/sched/core.c:5241
 context_switch kernel/sched/core.c:5372 [inline]
 __schedule+0x1748/0x27f0 kernel/sched/core.c:6756
 preempt_schedule_irq+0x80/0x188 kernel/sched/core.c:7078
 arm64_preempt_schedule_irq arch/arm64/kernel/entry-common.c:301 [inline]
 __el1_irq arch/arm64/kernel/entry-common.c:563 [inline]
 el1_interrupt+0x4c/0x68 arch/arm64/kernel/entry-common.c:575
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:580
 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:596
 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] (P)
 arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline] (P)
 do_notify_resume+0x5c/0x1f4 arch/arm64/kernel/entry-common.c:133 (P)
 do_notify_resume+0x58/0x1f4 arch/arm64/kernel/entry-common.c:133 (L)
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_interrupt+0xc8/0x248 arch/arm64/kernel/entry-common.c:832
 __el0_irq_handler_common+0x18/0x24 arch/arm64/kernel/entry-common.c:837
 el0t_64_irq_handler+0x10/0x1c arch/arm64/kernel/entry-common.c:842
 el0t_64_irq+0x198/0x19c arch/arm64/kernel/entry.S:601
irq event stamp: 35689
hardirqs last  enabled at (35688): [<ffff80008b687f2c>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline]
hardirqs last  enabled at (35688): [<ffff80008b687f2c>] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95
hardirqs last disabled at (35689): [<ffff80008b6a9b44>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (35689): [<ffff80008b6a9b44>] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170
softirqs last  enabled at (34558): [<ffff800080129934>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (35685): [<ffff800080020db4>] __do_softirq+0x14/0x20 kernel/softirq.c:588
---[ end trace 0000000000000000 ]---

Crashes (151):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/13 12:30 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2e7aff49b5da 3547e30f .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2025/01/15 12:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 6251d1776bc5 7315a7cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2025/01/13 14:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 6251d1776bc5 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2025/01/11 01:55 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 6251d1776bc5 67d7ec0a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2025/01/06 20:37 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2025/01/01 11:38 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2025/01/01 03:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/31 18:07 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/28 02:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/27 22:56 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/27 21:11 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/25 08:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/23 14:26 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/23 01:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 b4fbdbd4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/21 16:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 d7f584ee .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/20 13:08 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 06a573612678 1d58202c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/19 03:52 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2e7aff49b5da 1432fc84 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/17 17:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2e7aff49b5da c8c15bb2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/15 08:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2e7aff49b5da 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/14 18:44 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2e7aff49b5da 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/14 08:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2e7aff49b5da 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/13 05:48 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2e7aff49b5da 3547e30f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/10 05:56 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fac04efc5c79 cfc402b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/07 17:06 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 9ac0fdc6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/06 17:42 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 9ac0fdc6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/05 20:55 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 6e50d07b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/05 17:07 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 6e50d07b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/04 16:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 b50eb251 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/03 22:28 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 578925bc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/02 12:55 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/01 08:56 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/12/01 05:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/11/30 20:02 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/11/27 23:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/11/27 04:45 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 52b38cc1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/11/25 03:29 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/11/24 14:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/11/23 08:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/11/22 21:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/11/22 14:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 4b25d554 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/11/22 08:07 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 4b25d554 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/11/19 21:35 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2024/11/16 15:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 887407160d72 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
2023/06/19 03:43 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 177239177378 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in delayed_work_timer_fn
* Struck through repros no longer work on HEAD.