watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz.0.185:6659] Modules linked in: irq event stamp: 11605791 hardirqs last enabled at (11605790): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (11605791): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (11202924): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last enabled at (11202924): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last enabled at (11202924): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 softirqs last disabled at (11202927): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (11202927): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (11202927): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 CPU: 0 UID: 0 PID: 6659 Comm: syz.0.185 Not tainted 6.12.0-rc7-syzkaller-g4ff04abf9d5b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:__mod_timer+0x2f/0xeb0 kernel/time/timer.c:1066 Code: 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec 20 01 00 00 89 54 24 34 49 89 f4 49 89 fe 65 48 8b 04 25 28 00 00 00 <48> 89 84 24 00 01 00 00 49 bf 00 00 00 00 00 fc ff df 48 8d 9c 24 RSP: 0018:ffffc900000079a0 EFLAGS: 00000286 RAX: 97320e68781bee00 RBX: 00000000ffffea55 RCX: ffff8880638b9e00 RDX: 0000000000000000 RSI: 00000000ffffea55 RDI: ffff88807e012d08 RBP: ffffc90000007af0 R08: ffffffff8ba837e5 R09: 1ffffffff285ab1e R10: dffffc0000000000 R11: fffffbfff285ab1f R12: 00000000ffffea55 R13: ffffc90000007b40 R14: ffff88807e012d08 R15: ffff88807e012d08 FS: 00007efebeb986c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6d64ca3440 CR3: 000000002fda4000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hsr_announce+0x2aa/0x3a0 net/hsr/hsr_device.c:411 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1794 expire_timers kernel/time/timer.c:1845 [inline] __run_timers kernel/time/timer.c:2419 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430 run_timer_base kernel/time/timer.c:2439 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:19 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:87 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:147 [inline] RIP: 0010:__schedule+0x2ef/0x4c30 kernel/sched/core.c:6572 Code: b4 24 70 01 00 00 0f 1f 44 00 00 4c 89 f3 48 c1 eb 03 48 b8 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 f7 e8 d1 3c 2f f6 <48> c7 84 24 70 01 00 00 00 00 00 00 9c 8f 84 24 70 01 00 00 48 b8 RSP: 0018:ffffc9000369f2a0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 1ffff920006d3e82 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffffffff8c0adf20 RDI: ffffffff8c6114e0 RBP: ffffc9000369f4b0 R08: ffffc9000369f43f R09: 0000000000000000 R10: ffffc9000369f430 R11: fffff520006d3e88 R12: ffffc9000369f430 R13: ffff8880b8600000 R14: ffffc9000369f410 R15: dffffc0000000000 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6872 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6896 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] __text_poke+0xa6b/0xd30 arch/x86/kernel/alternative.c:1960 text_poke arch/x86/kernel/alternative.c:1984 [inline] text_poke_bp_batch+0x265/0xb30 arch/x86/kernel/alternative.c:2292 text_poke_flush arch/x86/kernel/alternative.c:2486 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2493 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210 static_key_enable+0x1a/0x20 kernel/jump_label.c:223 tracepoint_add_func+0x953/0x9e0 kernel/tracepoint.c:361 tracepoint_probe_register_prio kernel/tracepoint.c:511 [inline] tracepoint_probe_register+0x105/0x160 kernel/tracepoint.c:531 perf_trace_event_reg kernel/trace/trace_event_perf.c:129 [inline] perf_trace_event_init+0x478/0x930 kernel/trace/trace_event_perf.c:202 perf_trace_init+0x243/0x2e0 kernel/trace/trace_event_perf.c:226 perf_tp_event_init+0x8d/0x110 kernel/events/core.c:10357 perf_try_init_event+0x146/0x810 kernel/events/core.c:11891 perf_init_event kernel/events/core.c:11977 [inline] perf_event_alloc+0x135f/0x2310 kernel/events/core.c:12259 __do_sys_perf_event_open kernel/events/core.c:12766 [inline] __se_sys_perf_event_open+0xb1f/0x3870 kernel/events/core.c:12657 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efebdd7e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007efebeb98038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007efebdf35f80 RCX: 00007efebdd7e719 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007efebddf175e R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007efebdf35f80 R15: 00007ffc7d2708e8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 6657 Comm: syz.0.185 Not tainted 6.12.0-rc7-syzkaller-g4ff04abf9d5b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_single+0x464/0x1990 kernel/smp.c:679 Code: 83 e4 01 75 16 e8 2c 2d 0c 00 4d 89 fc 44 8b 7c 24 24 eb 46 e8 1d 2d 0c 00 eb 3f 4d 89 fc 44 8b 7c 24 24 f3 90 42 0f b6 04 2b <84> c0 75 10 41 f7 06 01 00 00 00 74 1e e8 fa 2c 0c 00 eb e5 44 89 RSP: 0018:ffffc900037ff8e0 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 1ffff920006fff39 RCX: ffff88802b3f1e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900037ffa70 R08: ffffffff8188b6e9 R09: 1ffffffff203a575 R10: dffffc0000000000 R11: ffffffff813ed230 R12: 1ffff920006fff34 R13: dffffc0000000000 R14: ffffc900037ff9c8 R15: 0000000000000000 FS: 000055555d44f500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30120218 CR3: 000000002fda4000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: task_function_call kernel/events/core.c:120 [inline] event_function_call+0x46b/0xbf0 kernel/events/core.c:327 perf_event_release_kernel+0x1b0/0x850 kernel/events/core.c:5495 perf_release+0x38/0x40 kernel/events/core.c:5589 __fput+0x23f/0x880 fs/file_table.c:431 task_work_run+0x24f/0x310 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efebdd7e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc7d270a48 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007efebdf37a80 RCX: 00007efebdd7e719 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007efebdf37a80 R08: 0000000000000006 R09: 00007ffc7d270d3f R10: 00000000003ffb94 R11: 0000000000000246 R12: 000000000003bd47 R13: 00007ffc7d270b50 R14: 0000000000000032 R15: ffffffffffffffff