watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.3:22264] Modules linked in: irq event stamp: 4068141 hardirqs last enabled at (4068140): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (4068140): [] _raw_spin_unlock_irqrestore+0x79/0xe0 kernel/locking/spinlock.c:184 hardirqs last disabled at (4068141): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (0): [] copy_process.part.0+0x15b9/0x8260 kernel/fork.c:1856 softirqs last disabled at (635): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (635): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 22264 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:184 Code: 48 c7 c0 88 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 2f 48 83 3d 7c 31 d8 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 fb eb e6 f8 eb c0 0f 0b 0f 0b 48 c7 c7 88 RSP: 0018:ffff8880ba107c28 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: 0000000000000286 RCX: 1ffff1101437e99d RDX: dffffc0000000000 RSI: ffff8880a1bf4cc8 RDI: 0000000000000286 RBP: ffff8880ba122b40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000022b40 R14: 0000000000000000 R15: ffff8880ba122b40 FS: 00007f734c23b700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f734dd17078 CR3: 000000002faa6000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __mod_timer kernel/time/timer.c:1071 [inline] mod_timer+0x4ea/0x1010 kernel/time/timer.c:1114 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x50/0x80 kernel/locking/spinlock.c:192 Code: c0 98 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 31 48 83 3d 01 31 d8 01 00 74 25 fb 66 0f 1f 44 00 00 01 00 00 00 e8 26 1b 28 f9 65 8b 05 9f 8d e8 77 85 c0 74 02 5d RSP: 0018:ffff88803193f850 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3053 RBX: ffff8880a1bf4440 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880a1bf4cc4 RBP: ffff8880ba12b0c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880ba12b0c0 R13: ffff8880b0500200 R14: 0000000000000000 R15: 0000000000000001 finish_lock_switch kernel/sched/core.c:2578 [inline] finish_task_switch+0x146/0x760 kernel/sched/core.c:2678 context_switch kernel/sched/core.c:2831 [inline] __schedule+0x88f/0x2040 kernel/sched/core.c:3517 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:3641 ___preempt_schedule+0x16/0x18 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] _raw_spin_unlock_irqrestore+0xaf/0xe0 kernel/locking/spinlock.c:184 try_to_wake_up+0x733/0x1050 kernel/sched/core.c:2056 wake_up_process kernel/sched/core.c:2124 [inline] wake_up_q+0x82/0xe0 kernel/sched/core.c:442 futex_wake+0x3e3/0x480 kernel/futex.c:1706 do_futex+0x2ca/0x1880 kernel/futex.c:3894 __do_sys_futex kernel/futex.c:3950 [inline] __se_sys_futex+0x28f/0x3b0 kernel/futex.c:3918 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f734dcc8639 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f734c23b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f734dde8f88 RCX: 00007f734dcc8639 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f734dde8f8c RBP: 00007f734dde8f80 R08: 000000965c7bb3f2 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000246 R12: 00007f734dde8f8c R13: 00007ffe16f450df R14: 00007f734c23b300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 22249 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 kernel/kcov.c:97 Code: ff 48 89 df e8 11 dd 35 00 e9 ab fe ff ff 4c 89 ef e8 04 dd 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <48> 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 RSP: 0018:ffff8880ba007968 EFLAGS: 00000046 RAX: 0000000000010001 RBX: ffff8880ba007a60 RCX: ffffffff8179764e RDX: 0000000000000000 RSI: ffff88804440e300 RDI: 0000000000000007 RBP: ffff8880ba007bc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000007 R11: ffffffff8c66501b R12: 0000000000000000 R13: 0000000000000000 R14: ffff88803fbc4100 R15: ffff8880ba007a60 FS: 00007fe997817700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f615a9ec058 CR3: 000000009e382000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_prepare_sample+0x7cc/0x1620 kernel/events/core.c:6600 __perf_event_output kernel/events/core.c:6616 [inline] perf_event_output_forward+0xf3/0x270 kernel/events/core.c:6634 __perf_event_overflow+0x13c/0x370 kernel/events/core.c:7907 perf_swevent_hrtimer+0x272/0x3e0 kernel/events/core.c:9261 __run_hrtimer kernel/time/hrtimer.c:1465 [inline] __hrtimer_run_queues+0x3f6/0xe60 kernel/time/hrtimer.c:1527 hrtimer_interrupt+0x326/0x9e0 kernel/time/hrtimer.c:1585 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline] smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:compound_head include/linux/page-flags.h:144 [inline] RIP: 0010:PageAnon include/linux/page-flags.h:418 [inline] RIP: 0010:zap_pte_range mm/memory.c:1340 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1463 [inline] RIP: 0010:zap_pud_range mm/memory.c:1492 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1513 [inline] RIP: 0010:unmap_page_range+0x1254/0x2c50 mm/memory.c:1534 Code: ed 48 89 41 18 0f 84 36 fe ff ff e8 36 e7 d6 ff 49 8d 6d 08 48 89 e8 48 c1 e8 03 42 80 3c 30 00 0f 85 df 16 00 00 49 8b 45 08 <31> ff 4d 89 ec 48 89 c3 48 89 84 24 c0 00 00 00 83 e3 01 48 89 de RSP: 0018:ffff88803058f770 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dead000000000100 RBX: 0000000000000001 RCX: ffff88803058f9b0 RDX: 0000000000000000 RSI: ffffffff818b9e3a RDI: ffff88803058f9c8 RBP: ffffea00025f1408 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 8000000097c50007 R13: ffffea00025f1400 R14: dffffc0000000000 R15: 00007fe998b74000 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1016 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1037 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fe9992a4639 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe997817168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: 0000000000000009 RBX: 00007fe9993c4f80 RCX: 00007fe9992a4639 RDX: 0000000000000002 RSI: 00000000200002c0 RDI: ffffffffffffff9c RBP: 00007fe9992ffae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff2f1a240f R14: 00007fe997817300 R15: 0000000000022000