watchdog: BUG: soft lockup - CPU#1 stuck for 234s! [kworker/u8:4:65] Modules linked in: irq event stamp: 10153332 hardirqs last enabled at (10153331): [] irqentry_exit+0x3b/0x90 kernel/entry/common.c:357 hardirqs last disabled at (10153332): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (10153328): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (10153328): [] handle_softirqs+0x5be/0x8e0 kernel/softirq.c:589 softirqs last disabled at (10153283): [] __do_softirq kernel/softirq.c:595 [inline] softirqs last disabled at (10153283): [] invoke_softirq kernel/softirq.c:435 [inline] softirqs last disabled at (10153283): [] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 CPU: 1 UID: 0 PID: 65 Comm: kworker/u8:4 Not tainted 6.14.0-syzkaller-10764-gaa918db707fb #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_many_cond+0x4aa/0x1290 kernel/smp.c:885 Code: 0c 00 85 ed 74 48 48 8b 44 24 20 49 89 c4 83 e0 07 49 c1 ec 03 48 89 c5 4d 01 f4 83 c5 03 e8 dd 23 0c 00 f3 90 41 0f b6 04 24 <40> 38 c5 7c 08 84 c0 0f 85 de 0b 00 00 8b 43 08 31 ff 83 e0 01 41 RSP: 0018:ffffc90001567938 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880b84415e0 RCX: ffffffff81af0389 RDX: ffff88801d748000 RSI: ffffffff81af0363 RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffed10170882bd R13: 0000000000000001 R14: dffffc0000000000 R15: ffff8880b853b180 FS: 0000000000000000(0000) GS:ffff888124ada000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000003c80 CR3: 000000000e182000 CR4: 0000000000350ef0 Call Trace: on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1052 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2455 [inline] text_poke_bp_batch+0x220/0x760 arch/x86/kernel/alternative.c:2665 text_poke_flush arch/x86/kernel/alternative.c:2856 [inline] text_poke_flush arch/x86/kernel/alternative.c:2853 [inline] text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2863 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 jump_label_update+0x1d7/0x400 kernel/jump_label.c:920 static_key_enable_cpuslocked+0x1b7/0x270 kernel/jump_label.c:210 static_key_enable+0x1a/0x20 kernel/jump_label.c:223 toggle_allocation_gate mm/kfence/core.c:850 [inline] toggle_allocation_gate+0xfa/0x280 mm/kfence/core.c:842 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c5/0x780 kernel/kthread.c:464 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 11791 Comm: syz.8.2123 Not tainted 6.14.0-syzkaller-10764-gaa918db707fb #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:__lock_acquire+0x1ce/0x1ba0 kernel/locking/lockdep.c:5172 Code: 14 c1 e0 0d 44 09 d0 c1 e2 12 09 c8 81 e2 00 00 04 00 09 d0 44 09 c0 41 09 c5 8b 84 24 b8 00 00 00 c1 e0 15 41 09 c5 8b 43 20 <25> ff 1f 00 00 41 09 c5 8b 84 24 c0 00 00 00 44 89 6b 20 89 43 24 RSP: 0018:ffffc90000007ce8 EFLAGS: 00000006 RAX: 00000000000a406f RBX: ffff88802d9f8b68 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffff88802d9f8b40 RDI: ffff88802d9f8b68 RBP: ffff88802d9f8af0 R08: 0000000000080000 R09: 0000000000000001 R10: 0000000000000000 R11: ffff8880b8427858 R12: 0000000000000001 R13: 00000000000c4000 R14: ffff88802d9f8000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881249da000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000005a692000 CR4: 0000000000350ef0 Call Trace: lock_acquire kernel/locking/lockdep.c:5866 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irq+0x36/0x50 kernel/locking/spinlock.c:170 __run_hrtimer kernel/time/hrtimer.c:1795 [inline] __hrtimer_run_queues+0x2bc/0xad0 kernel/time/hrtimer.c:1855 hrtimer_interrupt+0x397/0x8e0 kernel/time/hrtimer.c:1917 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x10b/0x3f0 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_cmp8+0x8/0x20 kernel/kcov.c:293 Code: 00 00 00 e9 ea fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <48> 89 f2 48 89 fe bf 06 00 00 00 e9 b8 fe ff ff 0f 1f 84 00 00 00 RSP: 0018:ffffc9000bf3f570 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 000000000004d7d7 RCX: ffffffff8205334d RDX: ffff88802d9f8000 RSI: 000000000004d7d7 RDI: 0000000000013a84 RBP: 0000000000013a84 R08: 0000000000000006 R09: 000000000023ffff R10: 000000000004d7d7 R11: 0000000000000000 R12: 1ffff920017e7eaf R13: ffffea000135f5c0 R14: 00007f9c59a06000 R15: 0000000000000000 vm_normal_page+0x12d/0x2b0 mm/memory.c:653 zap_present_ptes mm/memory.c:1563 [inline] do_zap_pte_range mm/memory.c:1697 [inline] zap_pte_range mm/memory.c:1741 [inline] zap_pmd_range mm/memory.c:1833 [inline] zap_pud_range mm/memory.c:1862 [inline] zap_p4d_range mm/memory.c:1883 [inline] unmap_page_range+0xc63/0x43b0 mm/memory.c:1904 unmap_single_vma+0x19a/0x2b0 mm/memory.c:1950 unmap_vmas+0x22c/0x490 mm/memory.c:1994 exit_mmap+0x1b9/0xb90 mm/mmap.c:1284 __mmput+0x12a/0x410 kernel/fork.c:1356 mmput+0x62/0x70 kernel/fork.c:1378 exit_mm kernel/exit.c:586 [inline] do_exit+0x9d4/0x2d90 kernel/exit.c:941 do_group_exit+0xd3/0x2a0 kernel/exit.c:1103 get_signal+0x2673/0x26d0 kernel/signal.c:3035 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x260 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9c5b18d169 Code: Unable to access opcode bytes at 0x7f9c5b18d13f. RSP: 002b:00007f9c5c0150e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f9c5b3a5fa8 RCX: 00007f9c5b18d169 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f9c5b3a5fa8 RBP: 00007f9c5b3a5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9c5b3a5fac R13: 0000000000000000 R14: 00007fffbe326140 R15: 00007fffbe326228