watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz.4.1690:8946]
Modules linked in:
irq event stamp: 4834
hardirqs last  enabled at (4833): [<ffff80001119d494>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (4833): [<ffff80001119d494>] exit_to_kernel_mode+0xe0/0x168 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (4834): [<ffff80001119d6ec>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (244): [<ffff80000819d8d8>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (244): [<ffff80000819d8d8>] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:586
softirqs last disabled at (187): [<ffff80000819dedc>] __do_softirq kernel/softirq.c:592 [inline]
softirqs last disabled at (187): [<ffff80000819dedc>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (187): [<ffff80000819dedc>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (187): [<ffff80000819dedc>] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:641
CPU: 0 PID: 8946 Comm: syz.4.1690 Not tainted 5.15.180-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
pstate: 60400005 (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 : ffff80001fd37940
x29: ffff80001fd37990 x28: ffff80001414d000 x27: 0000000000000001
x26: 0000000000000011 x25: ffff0001b42cd940 x24: ffff800014151000
x23: 1fffe00036859b28 x22: dfff800000000000 x21: ffff0001b42f30c8
x20: ffff80001433d380 x19: 0000000000000001 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80001119ef40 x15: 0000989680000000
x14: 0000000000000000 x13: 1ffff0000282a06b x12: 0000000000080000
x11: 000000000007ffff x10: ffff800024699000 x9 : 0000000000000000
x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff8000083cc890
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
 smp_call_function_many+0x40/0x54 kernel/smp.c:993
 clock_was_set+0x620/0x708 kernel/time/hrtimer.c:964
 do_settimeofday64+0x5b0/0x7d0 kernel/time/timekeeping.c:1328
 do_sys_settimeofday64+0x1b0/0x234 kernel/time/time.c:195
 posix_clock_realtime_set+0x24/0x34 kernel/time/posix-timers.c:190
 __do_sys_clock_settime kernel/time/posix-timers.c:1124 [inline]
 __se_sys_clock_settime kernel/time/posix-timers.c:1112 [inline]
 __arm64_sys_clock_settime+0x1fc/0x248 kernel/time/posix-timers.c:1112
 __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