syzbot


WARNING in delayed_work_timer_fn (2)

Status: upstream: reported on 2023/12/11 13:19
Reported-by: syzbot+fe0cb085668a18e84358@syzkaller.appspotmail.com
First crash: 366d, last: 69d
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in delayed_work_timer_fn arm 128 1d20h 537d 0/28 upstream: reported on 2023/06/23 03:48
linux-6.1 WARNING in delayed_work_timer_fn 2 505d 608d 0/3 auto-obsoleted due to no activity on 2023/11/02 17:34

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 111 at kernel/workqueue.c:1441 __queue_work+0x10c8/0x136c kernel/workqueue.c:1441
Modules linked in:
CPU: 1 PID: 111 Comm: kworker/1:2 Not tainted 6.1.112-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: xfs-buf/loop2 xfs_buf_ioend_work
pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __queue_work+0x10c8/0x136c kernel/workqueue.c:1441
lr : __queue_work+0x10c8/0x136c kernel/workqueue.c:1441
sp : ffff800008017b50
x29: ffff800008017b90 x28: 0000000000000008 x27: dfff800000000000
x26: ffff0000d480e800 x25: dfff800000000000 x24: 0000000000000101
x23: ffff0000d480e9c0 x22: ffff0000c82cd348 x21: 1fffe00019059a69
x20: 00000000000b0012 x19: ffff0000d9f24bc0 x18: 1fffe000367a3376
x17: ffff80019e3f6000 x16: ffff8000122953dc x15: 0000000000000000
x14: 1ffff00002b3a0b0 x13: dfff800000000000 x12: 00000000333c3bc6
x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff800008216a70
x8 : ffff0000c82cd340 x7 : ffff8000083fb1f8 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff8000143fb800
x2 : ffff0000d9f24bc0 x1 : 0000000000000100 x0 : 0000000000000000
Call trace:
 __queue_work+0x10c8/0x136c kernel/workqueue.c:1441
 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:1646
 call_timer_fn+0x1c0/0xa1c kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1544 [inline]
 __run_timers+0x584/0x718 kernel/time/timer.c:1820
 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:1833
 handle_softirqs+0x318/0xd58 kernel/softirq.c:571
 __do_softirq+0x14/0x20 kernel/softirq.c:605
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:893
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0x264/0x4d4 kernel/softirq.c:654
 irq_exit_rcu+0x14/0x84 kernel/softirq.c:666
 __el1_irq arch/arm64/kernel/entry-common.c:472 [inline]
 el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:486
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491
 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:581
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline]
 console_emit_next_record+0x94c/0xb40 kernel/printk/printk.c:2783
 console_unlock+0x294/0x698 kernel/printk/printk.c:2906
 vprintk_emit+0x150/0x2e8 kernel/printk/printk.c:2303
 vprintk_default+0xa0/0xe4 kernel/printk/printk.c:2318
 vprintk+0x200/0x2d4 kernel/printk/printk_safe.c:45
 _printk+0xdc/0x128 kernel/printk/printk.c:2328
 print_hex_dump+0x1a0/0x248 lib/hexdump.c:285
 xfs_hex_dump+0x48/0x58 fs/xfs/xfs_message.c:110
 xfs_buf_verifier_error+0x1ec/0x2bc fs/xfs/xfs_error.c:441
 xfs_verifier_error+0x50/0x64 fs/xfs/xfs_error.c:458
 xfs_agfl_read_verify+0x1a0/0x248
 xfs_buf_ioend+0x258/0x78c fs/xfs/xfs_buf.c:1303
 xfs_buf_ioend_work+0x20/0x30 fs/xfs/xfs_buf.c:1351
 process_one_work+0x7ac/0x1404 kernel/workqueue.c:2292
 worker_thread+0x8e4/0xfec kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864
irq event stamp: 25905
hardirqs last  enabled at (25904): [<ffff8000081c715c>] __local_bh_enable_ip+0x230/0x470 kernel/softirq.c:401
hardirqs last disabled at (25905): [<ffff800012376b5c>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (25905): [<ffff800012376b5c>] _raw_spin_lock_irq+0x34/0x9c kernel/locking/spinlock.c:170
softirqs last  enabled at (25842): [<ffff8000081c80cc>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (25842): [<ffff8000081c80cc>] handle_softirqs+0xb84/0xd58 kernel/softirq.c:599
softirqs last disabled at (25887): [<ffff800008020174>] __do_softirq+0x14/0x20 kernel/softirq.c:605
---[ end trace 0000000000000000 ]---

Crashes (26):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/03 08:32 linux-6.1.y aa4cd140bba5 a4c7fd36 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/09/26 04:21 linux-6.1.y e526b12bf916 0d19f247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/09/24 22:19 linux-6.1.y e526b12bf916 5643e0e9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/09/24 21:46 linux-6.1.y e526b12bf916 5643e0e9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/09/07 10:28 linux-6.1.y 699506173494 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/08/05 05:28 linux-6.1.y 48d525b0e463 1786a2a8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/07/30 02:33 linux-6.1.y c1cec4dad96b 5187fc86 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/07/20 00:29 linux-6.1.y 9b3f9a5b12dc 890ce4f3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/07/09 16:59 linux-6.1.y 7753af06eebf 79d68ada .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/06/27 18:29 linux-6.1.y 99e6a620de00 6ef39602 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/06/20 12:42 linux-6.1.y eb44d83053d6 dac2aa43 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/06/18 01:53 linux-6.1.y eb44d83053d6 ce6011bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/06/16 14:25 linux-6.1.y eb44d83053d6 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/06/13 02:06 linux-6.1.y ae9f2a70d69e 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/06/12 01:13 linux-6.1.y 88690811da69 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/06/11 14:58 linux-6.1.y 88690811da69 b7d9eb04 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/06/01 00:39 linux-6.1.y 88690811da69 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/05/31 15:55 linux-6.1.y 88690811da69 0c378259 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/05/25 15:16 linux-6.1.y 88690811da69 a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/05/23 07:53 linux-6.1.y 4078fa637fcd 4c2072ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/05/02 17:34 linux-6.1.y 909ba1f1b414 3ba885bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/04/05 21:06 linux-6.1.y 347385861c50 77230c29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/03/30 01:39 linux-6.1.y e5cd595e23c1 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/03/24 00:20 linux-6.1.y d7543167affd 0ea90952 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2024/01/12 15:06 linux-6.1.y 7c58bfa711cb f6fa7c28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
2023/12/11 13:18 linux-6.1.y e7cddbb41b63 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in delayed_work_timer_fn
* Struck through repros no longer work on HEAD.