watchdog: BUG: soft lockup - CPU#1 stuck for 122s! [syz-executor026:6782] Modules linked in: irq event stamp: 171892 hardirqs last enabled at (171891): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:585 hardirqs last disabled at (171892): [] idtentry_enter_cond_rcu+0x2e/0x50 arch/x86/entry/common.c:649 softirqs last enabled at (144702): [] asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 softirqs last disabled at (144695): [] asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 CPU: 1 PID: 6782 Comm: syz-executor026 Not tainted 5.8.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline] RIP: 0010:smp_call_function_single+0x307/0x450 kernel/smp.c:382 Code: e6 01 31 ff e8 6a 05 0b 00 41 83 e5 01 75 14 e8 4f 01 0b 00 eb 45 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f3 90 42 0f b6 04 23 <84> c0 75 0d 41 f6 07 01 74 22 e8 2a 01 0b 00 eb e8 44 89 f9 80 e1 RSP: 0018:ffffc90001277aa0 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 1ffff9200024ef59 RCX: ffff888092eba440 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90001277b28 R08: ffffffff816990a6 R09: ffffed1015d06d11 R10: ffffed1015d06d11 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffffc90001277ac8 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004c8aa8 CR3: 0000000009479000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __flush_tlb_others arch/x86/include/asm/paravirt.h:74 [inline] flush_tlb_others arch/x86/mm/tlb.c:856 [inline] flush_tlb_mm_range+0x304/0x450 arch/x86/mm/tlb.c:943 tlb_flush arch/x86/include/asm/tlb.h:24 [inline] tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:425 [inline] tlb_flush_mmu+0x1a7/0x910 mm/mmu_gather.c:248 tlb_finish_mmu+0xcb/0x200 mm/mmu_gather.c:328 exit_mmap+0x296/0x530 mm/mmap.c:3152 __mmput+0x113/0x370 kernel/fork.c:1093 exit_mm+0x4cd/0x550 kernel/exit.c:482 do_exit+0x584/0x1f80 kernel/exit.c:792 do_group_exit+0x161/0x2d0 kernel/exit.c:903 __do_sys_exit_group+0x13/0x20 kernel/exit.c:914 __se_sys_exit_group+0x10/0x10 kernel/exit.c:912 __x64_sys_exit_group+0x37/0x40 kernel/exit.c:912 do_syscall_64+0x73/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x442478 Code: Bad RIP value. RSP: 002b:00007ffde202ed88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000442478 RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00000000004c8a70 R08: 00000000000000e7 R09: ffffffffffffffd0 R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000001 R13: 00000000006dba40 R14: 0000000000000000 R15: 0000000000000000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2485 Comm: kworker/0:2 Not tainted 5.8.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: wg-crypt-wg0 wg_packet_tx_worker RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:196 Code: 00 00 0f 0b 66 90 53 48 89 fb e8 17 00 00 00 48 8b 3d 88 af 18 08 48 89 de 5b e9 67 9c 3e 00 cc cc cc cc cc cc cc 48 8b 04 24 <65> 48 8b 0c 25 00 fe 01 00 65 8b 15 f8 6b 8d 7e f7 c2 00 01 ff 00 RSP: 0018:ffffc90000007d90 EFLAGS: 00000002 RAX: ffffffff8165468f RBX: 0000000000000001 RCX: dffffc0000000000 RDX: ffff8880a06d4380 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 1bc16d674ec9f90f R08: ffffffff81654686 R09: fffffbfff131a7ee R10: fffffbfff131a7ee R11: 0000000000000000 R12: ffff888097389b40 R13: ffff8880ae8276d0 R14: ffff888097389b40 R15: ffff8880ae8276c0 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000610 CR3: 00000000a31b6000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_hrtimer_cancel+0x22f/0x2b0 include/trace/events/timer.h:290 debug_deactivate kernel/time/hrtimer.c:483 [inline] __run_hrtimer kernel/time/hrtimer.c:1488 [inline] __hrtimer_run_queues+0x291/0x930 kernel/time/hrtimer.c:1584 hrtimer_interrupt+0x373/0xd60 kernel/time/hrtimer.c:1646 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline] __sysvec_apic_timer_interrupt+0xf0/0x260 arch/x86/kernel/apic/apic.c:1097 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] sysvec_apic_timer_interrupt+0xb9/0x130 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:585 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa5/0xd0 kernel/locking/spinlock.c:191 Code: b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 0c 48 c7 c7 f8 c7 4b 89 e8 5a 5f 93 f9 48 83 3d 7a 87 2b 01 00 74 2c 4c 89 f7 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 4c 58 30 f9 65 8b 05 71 bd e1 77 RSP: 0018:ffffc9000814fb70 EFLAGS: 00000286 RAX: 1ffffffff12978ff RBX: ffff8880ae825400 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000286 RBP: ffff888091eac928 R08: dffffc0000000000 R09: fffffbfff1674eb8 R10: fffffbfff1674eb8 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880ae825400 R14: 0000000000000286 R15: ffff8880ae825400 __mod_timer+0xf78/0x1620 kernel/time/timer.c:1068 mod_peer_timer drivers/net/wireguard/timers.c:37 [inline] wg_timers_data_sent+0x19c/0x2b0 drivers/net/wireguard/timers.c:148 wg_packet_create_data_done drivers/net/wireguard/send.c:258 [inline] wg_packet_tx_worker+0x3e1/0xcc0 drivers/net/wireguard/send.c:280 process_one_work+0x789/0xfc0 kernel/workqueue.c:2269 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2415 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293