watchdog: BUG: soft lockup - CPU#0 stuck for 281s! [syz.1.72:5999]
Modules linked in:
irq event stamp: 3695467
hardirqs last  enabled at (3695466): [<ffffffff8187df98>] handle_softirqs+0x158/0x840
hardirqs last disabled at (3695467): [<ffffffff8ba83bce>] sysvec_apic_timer_interrupt+0xe/0xc0
softirqs last  enabled at (6626): [<ffffffff8187e96a>] __irq_exit_rcu+0xca/0x220
softirqs last disabled at (3695465): [<ffffffff8187e96a>] __irq_exit_rcu+0xca/0x220
CPU: 0 UID: 0 PID: 5999 Comm: syz.1.72 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:handle_softirqs+0x160/0x840
Code: 89 6c 24 20 0f b7 db 48 c7 c7 20 1d cb 8b e8 d7 81 20 0a 65 66 c7 05 a5 20 b1 11 00 00 e8 08 08 46 00 fb 48 c7 c5 c0 a0 60 8e <b8> ff ff ff ff 0f bc c3 41 89 c6 41 ff c6 0f 84 09 04 00 00 89 5c
RSP: 0018:ffffc90000007f28 EFLAGS: 00000206
RAX: 000000000038636a RBX: 0000000000000008 RCX: 0000000080000101
RDX: 0000000000000002 RSI: ffffffff8dfa5a5d RDI: ffffffff8c28ac60
RBP: ffffffff8e60a0c0 R08: ffffffff9030a7f7 R09: 1ffffffff20614fe
R10: dffffc0000000000 R11: fffffbfff20614ff R12: 1ffff110227566bf
R13: dffffc0000000000 R14: ffff8881073a8000 R15: dffffc0000000000
FS:  00007f5a24f7f6c0(0000) GS:ffff88818dc90000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000016c456000 CR4: 0000000000352ef0
DR0: 000000000000000b DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __irq_exit_rcu+0xca/0x220
 irq_exit_rcu+0x9/0x30
 common_interrupt+0xbb/0xe0
 </IRQ>
 <TASK>
 asm_fred_entry_from_kvm+0x50/0x60
 vmx_handle_exit_irqoff+0x4af/0xa00
 vcpu_run+0x5979/0x7860
 kvm_arch_vcpu_ioctl_run+0x11e6/0x20d0
 kvm_vcpu_ioctl+0xa62/0xfd0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5a2419cdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a24f7f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f5a24415fa0 RCX: 00007f5a2419cdd9
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000008
RBP: 00007f5a24232d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a24416038 R14: 00007f5a24415fa0 R15: 00007fffcca75dc8
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5992 Comm: syz.0.69 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:vmx_get_gdt+0x1c/0x160
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 41 56 41 54 53 48 89 f3 e8 cd ca 69 00 b8 10 48 00 00 41 0f 78 c4 <0f> 86 00 01 00 00 e8 b9 ca 69 00 49 bf 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffffc90009e66ed8 EFLAGS: 00000202
RAX: 0000000000004810 RBX: ffffc90009e66f80 RCX: 0000000000080000
RDX: ffffc90007551000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90009e67010 R08: 0000000000000001 R09: 0000000000000000
R10: ffffc90009e66f80 R11: ffffffff814a3190 R12: 0000000000002b5c
R13: 0000000000000000 R14: 1ffff920013ccde4 R15: ffffffff8bc32b78
FS:  00007fccd81886c0(0000) GS:ffff8882a9290000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001047ab000 CR4: 0000000000352ef0
DR0: 000000000000000b DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 get_descriptor_ptr+0x131/0x440
 __load_segment_descriptor+0x4a7/0x10a0
 x86_emulate_insn+0x868/0x43d0
 x86_emulate_instruction+0xef0/0x2100
 kvm_mmu_page_fault+0x91a/0xb70
 vmx_handle_exit+0xd70/0x16f0
 vcpu_run+0x5c77/0x7860
 kvm_arch_vcpu_ioctl_run+0x11e6/0x20d0
 kvm_vcpu_ioctl+0xa62/0xfd0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fccd739cdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fccd8188028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fccd7615fa0 RCX: 00007fccd739cdd9
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 00007fccd7432d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fccd7616038 R14: 00007fccd7615fa0 R15: 00007ffdc3b84f28
 </TASK>
