watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [udevd:3654]
Modules linked in:
irq event stamp: 1612474
hardirqs last  enabled at (1612473): [<ffff8000111bacfc>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (1612473): [<ffff8000111bacfc>] exit_to_kernel_mode+0xe0/0x168 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (1612474): [<ffff8000111baf54>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (1607800): [<ffff80000819e9e8>] softirq_handle_end kernel/softirq.c:419 [inline]
softirqs last  enabled at (1607800): [<ffff80000819e9e8>] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604
softirqs last disabled at (1607747): [<ffff80000819efec>] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (1607747): [<ffff80000819efec>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (1607747): [<ffff80000819efec>] invoke_softirq kernel/softirq.c:457 [inline]
softirqs last disabled at (1607747): [<ffff80000819efec>] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659
CPU: 0 PID: 3654 Comm: udevd Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : csd_lock_wait kernel/smp.c:440 [inline]
pc : smp_call_function_many_cond+0xe00/0xeb0 kernel/smp.c:969
lr : csd_lock_wait kernel/smp.c:440 [inline]
lr : smp_call_function_many_cond+0xe18/0xeb0 kernel/smp.c:969
sp : ffff800022be7730
x29: ffff800022be7780 x28: ffff80001416d000 x27: 0000000000000001
x26: 0000000000000011 x25: ffff0001a10d9980 x24: ffff800014171000
x23: 1fffe0003421b330 x22: dfff800000000000 x21: ffff0001a10ff108
x20: ffff80001435d500 x19: 0000000000000001 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082c0bc8 x15: 0000000000000406
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000001 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000083cda8c
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:440 [inline]
 smp_call_function_many_cond+0xe00/0xeb0 kernel/smp.c:969
 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426
 invalidate_bdev+0x90/0xc0 block/bdev.c:86
 bdev_disk_changed+0x200/0x1378 block/partitions/core.c:682
 blkdev_get_whole+0x2a4/0x344 block/bdev.c:682
 blkdev_get_by_dev+0x224/0x874 block/bdev.c:827
 blkdev_reread_part block/ioctl.c:106 [inline]
 blkdev_common_ioctl+0x1d20/0x25c8 block/ioctl.c:528
 blkdev_ioctl+0x570/0xbb8 block/ioctl.c:598
 block_ioctl+0xa4/0x118 block/fops.c:496
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584