watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [udevd:7746]
Modules linked in:
irq event stamp: 95768
hardirqs last  enabled at (95767): [<ffff80008b7c650c>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline]
hardirqs last  enabled at (95767): [<ffff80008b7c650c>] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95
hardirqs last disabled at (95768): [<ffff80008b7c3f84>] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline]
hardirqs last disabled at (95768): [<ffff80008b7c3f84>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575
softirqs last  enabled at (95764): [<ffff8000803128a4>] softirq_handle_end kernel/softirq.c:407 [inline]
softirqs last  enabled at (95764): [<ffff8000803128a4>] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589
softirqs last disabled at (95739): [<ffff800080020dbc>] __do_softirq+0x14/0x20 kernel/softirq.c:595
CPU: 0 UID: 0 PID: 7746 Comm: udevd Not tainted 6.14.0-rc7-syzkaller-gb5737d35364f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : csd_lock_wait kernel/smp.c:340 [inline]
pc : smp_call_function_many_cond+0x19b4/0x3298 kernel/smp.c:885
lr : csd_lock_wait kernel/smp.c:340 [inline]
lr : smp_call_function_many_cond+0x19cc/0x3298 kernel/smp.c:885
sp : ffff8000a0e27980
x29: ffff8000a0e27ac0 x28: 1fffe000366f4521 x27: dfff800000000000
x26: ffff0001b37cabe8 x25: 0000000000000001 x24: 0000000000000008
x23: ffffffffffffffff x22: 1fffe000366f4520 x21: 0000000000000011
x20: ffff0001b37a2908 x19: ffff0001b37a2900 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800080469530 x15: 0000000000000001
x14: 1fffe000366f957d x13: 0000000000000000 x12: 0000000000000000
x11: ffff6000366f957e x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000011 x7 : ffff800080993b3c x6 : 0000000000000000
x5 : 0000000000000000 x4 : ffff800080e07a80 x3 : ffff8000805f0650
x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:231 [inline] (P)
 __cmpwait arch/arm64/include/asm/cmpxchg.h:257 [inline] (P)
 csd_lock_wait kernel/smp.c:340 [inline] (P)
 smp_call_function_many_cond+0x19b4/0x3298 kernel/smp.c:885 (P)
 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1052
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1530
 kill_bdev block/bdev.c:90 [inline]
 blkdev_flush_mapping+0xf0/0x258 block/bdev.c:670
 blkdev_put_whole block/bdev.c:677 [inline]
 bdev_release+0x4bc/0x644 block/bdev.c:1102
 blkdev_release+0x20/0x34 block/fops.c:660
 __fput+0x340/0x760 fs/file_table.c:464
 __fput_sync+0xc8/0x118 fs/file_table.c:550
 __do_sys_close fs/open.c:1580 [inline]
 __se_sys_close fs/open.c:1565 [inline]
 __arm64_sys_close+0x80/0xd8 fs/open.c:1565
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Sending NMI from CPU 0 to CPUs 1: