watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [blkid:27087] Modules linked in: irq event stamp: 280612 hardirqs last enabled at (280611): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (280612): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (17472): [] __do_softirq+0x74d/0xa74 kernel/softirq.c:318 softirqs last disabled at (17191): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (17191): [] irq_exit+0x1d6/0x210 kernel/softirq.c:412 CPU: 0 PID: 27087 Comm: blkid Not tainted 4.19.0-rc1+ #217 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+0x3e6/0x5c0 kernel/smp.c:302 Code: ff df 44 89 e6 48 c1 e8 03 4c 01 e8 c6 00 f8 48 89 44 24 28 e8 9b 3b 0c 00 45 85 e4 74 67 48 8b 44 24 28 48 83 c3 18 49 89 c4 75 3a 0c 00 f3 90 48 89 d8 41 c6 04 24 04 48 c1 e8 03 42 0f b6 RSP: 0018:ffff880190b37680 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff880190b376f8 RCX: ffffffff8170865c RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005 RBP: ffff880190b377c8 R08: ffff8801bf18c140 R09: ffffed003b625b98 R10: ffffed003b625b98 R11: ffff8801db12dcc7 R12: ffffed0032166eec R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 00007f8918500740(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000897008 CR3: 00000001c7882000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: smp_call_function_many+0x884/0xa40 kernel/smp.c:434 on_each_cpu_mask+0x3e/0x1f0 kernel/smp.c:634 on_each_cpu_cond+0x15a/0x1d0 kernel/smp.c:686 invalidate_bh_lrus+0x29/0x30 fs/buffer.c:1395 kill_bdev+0xcc/0x110 fs/block_dev.c:85 __blkdev_put+0x20f/0x830 fs/block_dev.c:1790 blkdev_put+0x98/0x540 fs/block_dev.c:1858 blkdev_close+0x8b/0xb0 fs/block_dev.c:1865 __fput+0x38a/0xa40 fs/file_table.c:278 ____fput+0x15/0x20 fs/file_table.c:309 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8917e082b0 Code: 40 75 0b 31 c0 48 83 c4 08 e9 0c ff ff ff 48 8d 3d c5 32 08 00 e8 c0 07 02 00 83 3d 45 a3 2b 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ce 8a 01 00 48 89 04 24 RSP: 002b:00007fffb2b9e058 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f8917e082b0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000028 R09: 0000000001680000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000088e030 R13: 0000000000000000 R14: 0000000000000003 R15: 0000000000000005 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 27084 Comm: syz-executor4 Not tainted 4.19.0-rc1+ #217 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0x168/0x5020 kernel/locking/lockdep.c:3288 Code: 12 00 00 8b 05 d9 b9 ed 06 85 c0 0f 84 82 00 00 00 48 c7 c2 20 78 b5 89 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 <48> c7 c0 20 78 b5 89 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 21 RSP: 0018:ffff8801915cea00 EFLAGS: 00000802 RAX: dffffc0000000000 RBX: 1ffff100322b9dbd RCX: 0000000000000002 RDX: 0000000000000004 RSI: 0000000000000000 RDI: ffffc9000712eda8 RBP: ffff8801915ced90 R08: 0000000000000000 R09: 0000000000000001 R10: fffff52000e25c47 R11: ffffc9000712e23b R12: 0000000000000001 R13: ffffc9000712eda8 R14: ffff8801c7d54240 R15: 0000000000000002 FS: 00007f39198fb700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f725000 CR3: 00000001d0450000 CR4: 00000000001426e0 DR0: 000000000000b8c4 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1e4/0x4f0 kernel/locking/lockdep.c:3901 rcu_lock_acquire include/linux/rcupdate.h:244 [inline] srcu_read_lock include/linux/srcu.h:199 [inline] kvm_arch_vcpu_put+0x171/0x420 arch/x86/kvm/x86.c:3178 kvm_sched_out+0x91/0xb0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3985 __fire_sched_out_preempt_notifiers kernel/sched/core.c:2497 [inline] fire_sched_out_preempt_notifiers kernel/sched/core.c:2505 [inline] prepare_task_switch kernel/sched/core.c:2611 [inline] context_switch kernel/sched/core.c:2790 [inline] __schedule+0xf1e/0x1df0 kernel/sched/core.c:3473 preempt_schedule_common+0x22/0x60 kernel/sched/core.c:3597 _cond_resched+0x1d/0x30 kernel/sched/core.c:4963 __mutex_lock_common kernel/locking/mutex.c:908 [inline] __mutex_lock+0x13d/0x1700 kernel/locking/mutex.c:1073 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1088 arch_jump_label_transform+0x1b/0x40 arch/x86/kernel/jump_label.c:112 __jump_label_update+0x16e/0x1a0 kernel/jump_label.c:375 jump_label_update+0x151/0x2e0 kernel/jump_label.c:760 static_key_slow_inc_cpuslocked+0x341/0x430 kernel/jump_label.c:110 static_key_slow_inc+0x1a/0x30 kernel/jump_label.c:125 kvm_lapic_set_base+0x3c1/0x6f0 arch/x86/kvm/lapic.c:2040 kvm_set_apic_base+0x241/0x2e0 arch/x86/kvm/x86.c:345 __set_sregs+0x356/0x1880 arch/x86/kvm/x86.c:8130 kvm_arch_vcpu_ioctl_set_sregs+0x25/0x40 arch/x86/kvm/x86.c:8210 kvm_vcpu_ioctl+0x9b5/0x1280 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2646 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457099 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f39198fac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f39198fb6d4 RCX: 0000000000457099 RDX: 00000000200001c0 RSI: 000000004138ae84 RDI: 0000000000000005 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cf6d0 R14: 00000000004c59be R15: 0000000000000000