watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [blkid:29280] Modules linked in: irq event stamp: 308880 hardirqs last enabled at (308879): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (308880): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (54204): [] __do_softirq+0x74d/0xa74 kernel/softirq.c:318 softirqs last disabled at (54159): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (54159): [] irq_exit+0x1d6/0x210 kernel/softirq.c:412 CPU: 0 PID: 29280 Comm: blkid Not tainted 4.19.0-rc2+ #222 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+0x3f5/0x5c0 kernel/smp.c:302 Code: 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 e8 75 3a 0c 00 f3 90 48 89 d8 41 c6 04 24 04 <48> c1 e8 03 42 0f b6 04 28 84 c0 74 08 3c 03 0f 8e 35 01 00 00 41 RSP: 0018:ffff88013272f680 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff88013272f6f8 RBX: ffff88013272f6f8 RCX: ffffffff8170951c RDX: 0000000000000000 RSI: ffffffff817094cb RDI: 0000000000000005 RBP: ffff88013272f7c8 R08: ffff8801b458e600 R09: ffffed003b625b98 R10: ffffed003b625b98 R11: ffff8801db12dcc7 R12: ffffed00264e5eec R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 00007f7ce87f3740(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002378008 CR3: 00000001d864e000 CR4: 00000000001426f0 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:1394 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: 0033:0x7f7ce80fb2b0 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:00007fff18b1b158 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f7ce80fb2b0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000028 R09: 0000000001680000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000236f030 R13: 0000000000000000 R14: 0000000000000003 R15: 0000000000000005 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 29278 Comm: syz-executor3 Not tainted 4.19.0-rc2+ #222 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0x21f/0x5020 kernel/locking/lockdep.c:3439 Code: e7 f8 48 c7 41 4c 00 00 00 00 48 29 f9 83 c1 54 c1 e9 03 f3 48 ab 44 89 f8 48 8b b4 24 58 03 00 00 65 48 33 34 25 28 00 00 00 <0f> 85 03 34 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 RSP: 0018:ffff8801d37ce420 EFLAGS: 00000046 RAX: 0000000000000001 RBX: 000000001c4895bf RCX: 0000000000000000 RDX: 1ffff100370db1f7 RSI: 0000000000000000 RDI: ffffed003a6f9ce8 RBP: ffff8801d37ce7b0 R08: 0000000000000008 R09: 0000000000000003 R10: ffff8801b86d9038 R11: 2d92e46f068278cc R12: 00000000c4deee2d R13: 0000000000000000 R14: ffff8801b86d8780 R15: 0000000000000001 FS: 00007f2835d70700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001d91b7000 CR4: 00000000001426e0 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 down_read+0x97/0x1d0 kernel/locking/rwsem.c:23 kvm_host_page_size+0x99/0x150 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1255 host_mapping_level arch/x86/kvm/mmu.c:1120 [inline] mapping_level+0x174/0x4c0 arch/x86/kvm/mmu.c:1170 tdp_page_fault+0x29a/0xc00 arch/x86/kvm/mmu.c:4054 kvm_mmu_page_fault+0x226/0x19b0 arch/x86/kvm/mmu.c:5240 handle_ept_violation+0x27c/0x660 arch/x86/kvm/vmx.c:7679 vmx_handle_exit+0x2dd/0x1760 arch/x86/kvm/vmx.c:10115 vcpu_enter_guest+0x143c/0x61a0 arch/x86/kvm/x86.c:7630 vcpu_run arch/x86/kvm/x86.c:7693 [inline] kvm_arch_vcpu_ioctl_run+0x373/0x16d0 arch/x86/kvm/x86.c:7870 kvm_vcpu_ioctl+0x7b8/0x1280 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2590 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:00007f2835d6fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f2835d706d4 RCX: 0000000000457099 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cf730 R14: 00000000004c59b9 R15: 0000000000000000