watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/u4:1:11] Modules linked in: irq event stamp: 959618 hardirqs last enabled at (959617): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (959617): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (959618): [] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline] hardirqs last disabled at (959618): [] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486 softirqs last enabled at (955550): [] softirq_handle_end kernel/softirq.c:421 [inline] softirqs last enabled at (955550): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:606 softirqs last disabled at (955473): [] __do_softirq+0x14/0x20 kernel/softirq.c:612 CPU: 0 PID: 11 Comm: kworker/u4:1 Not tainted 6.1.135-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: events_unbound toggle_allocation_gate pstate: 80400005 (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 : ffff80001c827830 x29: ffff80001c827890 x28: 0000000000000001 x27: ffff80001506d000 x26: 0000000000000011 x25: ffff800015071140 x24: ffff0001b3e2c140 x23: 1fffe000367c5828 x22: dfff800000000000 x21: ffff0001b3e519c8 x20: 0000000000000001 x19: ffff800015269da0 x18: 0000000059e08c22 x17: dfff800000000000 x16: ffff8000082d1c08 x15: 0000000000000000 x14: 0000000000000001 x13: 1ffff00002a0e0b1 x12: 0000000000ff0100 x11: ff008000083ffbfc x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff8000083ffbf0 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:1022 [inline] smp_call_function kernel/smp.c:1044 [inline] kick_all_cpus_sync+0x40/0xa0 kernel/smp.c:1190 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_enable_cpuslocked+0x11c/0x220 kernel/jump_label.c:207 static_key_enable+0x24/0x38 kernel/jump_label.c:220 toggle_allocation_gate+0xc0/0x3f8 mm/kfence/core.c:805 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:864