watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [kworker/u8:37:7379] Modules linked in: irq event stamp: 193404 hardirqs last enabled at (193403): [] irqentry_exit+0xd8/0x108 kernel/entry/common.c:214 hardirqs last disabled at (193404): [] enter_from_kernel_mode+0x14/0x34 arch/arm64/kernel/entry-common.c:42 softirqs last enabled at (193402): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (193402): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (193375): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 CPU: 1 UID: 0 PID: 7379 Comm: kworker/u8:37 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 Workqueue: events_unbound toggle_allocation_gate pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : csd_lock_wait kernel/smp.c:342 [inline] pc : smp_call_function_many_cond+0xee8/0x1418 kernel/smp.c:877 lr : csd_lock_wait kernel/smp.c:342 [inline] lr : smp_call_function_many_cond+0xf00/0x1418 kernel/smp.c:877 sp : ffff80009f107740 x29: ffff80009f107850 x28: 0000000000000011 x27: ffff00019bedfa40 x26: 0000000000000000 x25: ffff80008f5b1f28 x24: ffffffffffffffff x23: 1fffe000337dbf48 x22: dfff800000000000 x21: 1fffe000337dbf49 x20: ffff00019bec2548 x19: ffff00019bedfa48 x18: 1fffe000337d9290 x17: ffff80008f5ae000 x16: ffff800082defcc0 x15: 0000000000000001 x14: 1fffe000337d84a9 x13: 0000000000000000 x12: 0000000000000000 x11: ffff6000337d84aa x10: 0000000000ff0100 x9 : 0000000000000000 x8 : 0000000000000011 x7 : ffff80008022cd40 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff80008068ea44 x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:231 [inline] (P) __cmpwait arch/arm64/include/asm/cmpxchg.h:257 [inline] (P) csd_lock_wait kernel/smp.c:342 [inline] (P) smp_call_function_many_cond+0xee8/0x1418 kernel/smp.c:877 (P) smp_call_function_many kernel/smp.c:900 [inline] smp_call_function kernel/smp.c:922 [inline] kick_all_cpus_sync+0x40/0xa0 kernel/smp.c:1067 arch_jump_label_transform_apply+0x14/0x20 arch/arm64/kernel/jump_label.c:34 __jump_label_update+0x30c/0x334 kernel/jump_label.c:521 jump_label_update+0x3f0/0x484 kernel/jump_label.c:919 static_key_enable_cpuslocked+0x11c/0x220 kernel/jump_label.c:210 static_key_enable+0x24/0x38 kernel/jump_label.c:223 toggle_allocation_gate+0xbc/0x240 mm/kfence/core.c:852