watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [udevd:4424]
Modules linked in:
irq event stamp: 748110
hardirqs last  enabled at (748109): [<ffff800012161be0>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (748109): [<ffff800012161be0>] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (748110): [<ffff80001215f8bc>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (748110): [<ffff80001215f8bc>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (743680): [<ffff8000081c7f74>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (743680): [<ffff8000081c7f74>] handle_softirqs+0xb84/0xd58 kernel/softirq.c:599
softirqs last disabled at (743635): [<ffff800008020174>] __do_softirq+0x14/0x20 kernel/softirq.c:605
CPU: 0 PID: 4424 Comm: udevd Not tainted 6.1.93-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : csd_lock_wait kernel/smp.c:424 [inline]
pc : smp_call_function_many_cond+0x20f8/0x32b8 kernel/smp.c:998
lr : csd_lock_wait kernel/smp.c:424 [inline]
lr : smp_call_function_many_cond+0x2110/0x32b8 kernel/smp.c:998
sp : ffff80001e047460
x29: ffff80001e0477c0 x28: 1fffe0003686d838 x27: ffff800015851130
x26: ffff80001e0475c8 x25: ffff0001b4391a08 x24: 0000000000000001
x23: dfff800000000000 x22: ffff0001b436c1c8 x21: 0000000000000011
x20: ffff80001e0475c0 x19: ffff0001b436c1c0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000083052a8 x15: 0000000000000000
x14: 0000000000000406 x13: ffff0000cb283780 x12: 0000000000000001
x11: 0000000000ff0100 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : ffff800008b346fc x3 : ffff800008451938
x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:252 [inline]
 __cmpwait arch/arm64/include/asm/cmpxchg.h:278 [inline]
 csd_lock_wait kernel/smp.c:424 [inline]
 smp_call_function_many_cond+0x20f8/0x32b8 kernel/smp.c:998
 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1166
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1412
 kill_bdev block/bdev.c:75 [inline]
 blkdev_flush_mapping+0x128/0x280 block/bdev.c:664
 blkdev_put_whole block/bdev.c:695 [inline]
 blkdev_put+0x464/0x6e0 block/bdev.c:955
 blkdev_close+0x58/0x94 block/fops.c:514
 __fput+0x30c/0x7bc fs/file_table.c:320
 ____fput+0x20/0x30 fs/file_table.c:348
 task_work_run+0x240/0x2f0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2148/0x3474 arch/arm64/kernel/signal.c:1132
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585