watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/u8:11:4494] Modules linked in: irq event stamp: 168996 hardirqs last enabled at (168995): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline] hardirqs last enabled at (168995): [] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95 hardirqs last disabled at (168996): [] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline] hardirqs last disabled at (168996): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575 softirqs last enabled at (168988): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (168988): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (168949): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 CPU: 0 UID: 0 PID: 4494 Comm: kworker/u8:11 Not tainted 6.14.0-rc1-syzkaller-g2014c95afece #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: events_unbound toggle_allocation_gate pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : csd_lock_wait kernel/smp.c:340 [inline] pc : smp_call_function_many_cond+0x19b4/0x3298 kernel/smp.c:885 lr : csd_lock_wait kernel/smp.c:340 [inline] lr : smp_call_function_many_cond+0x19cc/0x3298 kernel/smp.c:885 sp : ffff8000a24176f0 x29: ffff8000a2417830 x28: 1fffe000366f4911 x27: dfff800000000000 x26: ffff0001b37cd4a8 x25: 0000000000000001 x24: 0000000000000008 x23: ffffffffffffffff x22: 1fffe000366f4910 x21: 0000000000000011 x20: ffff0001b37a4888 x19: ffff0001b37a4880 x18: 1fffe000366f1c86 x17: ffff80008fbcd000 x16: ffff8000832d977c x15: 0000000000000001 x14: 1fffe000366f9a95 x13: 0000000000000000 x12: 0000000000000000 x11: ffff6000366f9a96 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : 0000000000000011 x7 : ffff80008015c774 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000805f026c 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:340 [inline] (P) smp_call_function_many_cond+0x19b4/0x3298 kernel/smp.c:885 (P) smp_call_function_many kernel/smp.c:909 [inline] smp_call_function kernel/smp.c:931 [inline] kick_all_cpus_sync+0x40/0xa0 kernel/smp.c:1076 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+0x30c/0x3bc kernel/jump_label.c:920 static_key_enable_cpuslocked+0x140/0x230 kernel/jump_label.c:210 static_key_enable+0x24/0x38 kernel/jump_label.c:223 toggle_allocation_gate+0xc4/0x264 mm/kfence/core.c:850 process_one_work+0x7a8/0x15cc kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3317 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3398 kthread+0x65c/0x7b0 kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.14.0-rc1-syzkaller-g2014c95afece #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline] pc : handle_softirqs+0x1f4/0xd34 kernel/softirq.c:545 lr : handle_softirqs+0x1ec/0xd34 kernel/softirq.c:545 sp : ffff800080017f00 x29: ffff800080017f80 x28: 0000000000000286 x27: 1fffe00018371001 x26: ffff80008fbcd000 x25: ffff0000c1b88010 x24: ffff0000c1b88008 x23: ffff0000c1b8802c x22: dfff800000000000 x21: ffff80008fb181fc x20: 00000000ffffaa1a x19: ffff0001b37c6600 x18: 1fffe000366f6486 x17: ffff800123c9a000 x16: ffff800080469d6c x15: 0000000000000001 x14: 1ffff00012ef9568 x13: ffff800080018000 x12: 0000000000000003 x11: 0000000000000101 x10: 0000800000000000 x9 : 0000000000000000 x8 : 00000000000305b8 x7 : ffff8000805927a8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0000c1b88000 x1 : ffff80008b8ba180 x0 : ffff800123c9a000 Call trace: __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] (P) arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline] (P) handle_softirqs+0x1f4/0xd34 kernel/softirq.c:545 (P) __do_softirq+0x14/0x20 kernel/softirq.c:595 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:891 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 invoke_softirq kernel/softirq.c:442 [inline] __irq_exit_rcu+0x1d8/0x544 kernel/softirq.c:662 irq_exit_rcu+0x14/0x84 kernel/softirq.c:678 __el1_irq arch/arm64/kernel/entry-common.c:561 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:575 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:580 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:596 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] (P) arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:48 (P) cpuidle_idle_call kernel/sched/idle.c:185 [inline] do_idle+0x1ec/0x4e0 kernel/sched/idle.c:325 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:423 secondary_start_kernel+0x1bc/0x1e4 arch/arm64/kernel/smp.c:279 __secondary_switched+0xc0/0xc4 arch/arm64/kernel/head.S:417