watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz.3.231:5056] Modules linked in: irq event stamp: 6056 hardirqs last enabled at (6055): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline] hardirqs last enabled at (6055): [] exit_to_kernel_mode+0xe0/0x168 arch/arm64/kernel/entry-common.c:91 hardirqs last disabled at (6056): [] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227 softirqs last enabled at (1480): [] softirq_handle_end kernel/softirq.c:419 [inline] softirqs last enabled at (1480): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604 softirqs last disabled at (1427): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (1427): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (1427): [] invoke_softirq kernel/softirq.c:457 [inline] softirqs last disabled at (1427): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 CPU: 1 PID: 5056 Comm: syz.3.231 Not tainted 5.15.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff8000204c7940 x29: ffff8000204c7990 x28: ffff80001416d000 x27: 0000000000000000 x26: 0000000000000011 x25: ffff0001a10fa980 x24: ffff800014171000 x23: 1fffe0003421f530 x22: dfff800000000000 x21: ffff0001a10e0008 x20: ffff80001435d500 x19: 0000000000000000 x18: 0000000000000000 x17: ffff800016d04000 x16: ffff8000111bc798 x15: ffff8000167e4500 x14: ffff0000c8bd5bc0 x13: 1ffff0000282e06b x12: 0000000000080000 x11: 000000000007ffff x10: ffff800023ca9000 x9 : 0000000000000000 x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 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 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:191 __do_sys_clock_settime kernel/time/posix-timers.c:1125 [inline] __se_sys_clock_settime kernel/time/posix-timers.c:1113 [inline] __arm64_sys_clock_settime+0x1fc/0x248 kernel/time/posix-timers.c:1113 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x1fc/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