watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/0:7:4952] Modules linked in: irq event stamp: 17894 hardirqs last enabled at (17893): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (17893): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (17894): [] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline] hardirqs last disabled at (17894): [] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486 softirqs last enabled at (13856): [] local_bh_enable+0xc/0x2c include/linux/bottom_half.h:32 softirqs last disabled at (13852): [] local_bh_disable+0xc/0x2c include/linux/bottom_half.h:19 CPU: 0 PID: 4952 Comm: kworker/0:7 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 Workqueue: events jump_label_update_timeout 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+0x1384/0x1460 kernel/smp.c:998 lr : csd_lock_wait kernel/smp.c:424 [inline] lr : smp_call_function_many_cond+0x139c/0x1460 kernel/smp.c:998 sp : ffff800021227980 x29: ffff8000212279e0 x28: 0000000000000001 x27: ffff80001504d000 x26: 0000000000000011 x25: ffff800015051140 x24: ffff00019f7521c0 x23: 1fffe00033eea438 x22: dfff800000000000 x21: ffff00019f777a08 x20: 0000000000000001 x19: ffff80001524a560 x18: 00000000a0efba45 x17: ffff800018184000 x16: ffff8000082d3a08 x15: ffff800017c65000 x14: ffff0000ca36a658 x13: 1ffff00002a0a0b1 x12: 0000000000ff0100 x11: ff00800008401440 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008401434 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+0x1384/0x1460 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+0x30c/0x334 kernel/jump_label.c:518 jump_label_update+0x304/0x3b4 kernel/jump_label.c:864 __static_key_slow_dec_cpuslocked+0xc4/0x13c kernel/jump_label.c:312 __static_key_slow_dec kernel/jump_label.c:318 [inline] jump_label_update_timeout+0x28/0x3c kernel/jump_label.c:326 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850