watchdog: BUG: soft lockup - CPU#0 stuck for 28s! [kworker/0:1:14] Modules linked in: irq event stamp: 283940 hardirqs last enabled at (283939): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (283939): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (283940): [] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline] hardirqs last disabled at (283940): [] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486 softirqs last enabled at (263292): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (263292): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (263191): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 Workqueue: events once_deferred pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : csd_lock_wait kernel/smp.c:424 [inline] pc : smp_call_function_many_cond+0xeac/0x1404 kernel/smp.c:998 lr : csd_lock_wait kernel/smp.c:424 [inline] lr : smp_call_function_many_cond+0xec4/0x1404 kernel/smp.c:998 sp : ffff80001dc47990 x29: ffff80001dc479e0 x28: dfff800000000000 x27: 0000000000000000 x26: ffff80001641d000 x25: 0000000000000011 x24: ffff800016420f40 x23: ffff00019e0d83c0 x22: 1fffe00033c1b078 x21: ffff00019e0fdc08 x20: 0000000000000001 x19: ffff80001661a820 x18: 0000000045e477c5 x17: dfff800000000000 x16: ffff800011bcb318 x15: 0000000040000002 x14: 0000000000000001 x13: 1fffe00033c1fb81 x12: 0000000000000000 x11: ff0080000841018c x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008410180 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+0xeac/0x1404 kernel/smp.c:998 smp_call_function_many kernel/smp.c:1021 [inline] smp_call_function kernel/smp.c:1043 [inline] kick_all_cpus_sync+0x40/0xa0 kernel/smp.c:1189 arch_jump_label_transform_apply+0x14/0x20 arch/arm64/kernel/jump_label.c:34 __jump_label_update+0x314/0x33c kernel/jump_label.c:518 jump_label_update+0x310/0x3c4 kernel/jump_label.c:864 static_key_disable_cpuslocked+0xe0/0x1ec kernel/jump_label.c:237 static_key_disable+0x24/0x38 kernel/jump_label.c:245 once_deferred+0x78/0xbc lib/once.c:20 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850