======================================
| # 86.24 [+0.00] [  884.883191] vx10: left promiscuous mode
| # 86.24 [+0.00] [  884.883548] br1: port 1(vx10) entered disabled state
| # 86.24 [+0.00] [  905.639282] Mirror/redirect action on
| # 86.24 [+0.00] [  924.181144] irq 51: nobody cared (try booting with the "irqpoll" option)
# 86.25 [+0.00] [  924.182193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 86.25 [+0.00] [  924.182554] Call Trace:
# 86.25 [+0.00] [  924.182782]  <IRQ>
# 86.25 [+0.00] [  924.182938] dump_stack_lvl (lib/dump_stack.c:123)
# 86.25 [+0.00] [  924.183223] __report_bad_irq (kernel/irq/spurious.c:214)
# 86.25 [+0.00] [  924.183552] note_interrupt (kernel/irq/spurious.c:423)
# 86.25 [+0.00] [  924.183822] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210)
# 86.25 [+0.00] [  924.184097] handle_edge_irq (kernel/irq/chip.c:833)
# 86.25 [+0.00] [  924.184393] __common_interrupt (./include/linux/irqdesc.h:173 arch/x86/kernel/irq.c:247 arch/x86/kernel/irq.c:259 arch/x86/kernel/irq.c:285)
# 86.26 [+0.00] [  924.184684] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14))
# 86.26 [+0.00] [  924.184965]  </IRQ>
# 86.26 [+0.00] [  924.185116]  <TASK>
# 86.26 [+0.00] [  924.185255] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
# 86.26 [+0.00] [  924.185537] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
# 86.26 [+0.00] [ 924.185916] Code: 10 e8 e1 73 8c fd 48 89 ef e8 99 e8 8c fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d a5 75 f4 46 <74> 0e 5b 5d c3 cc cc cc cc e8 3f 40 b2 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	e1 73                	loope  0x77
   4:	8c fd                	mov    %?,%ebp
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 99 e8 8c fd       	call   0xfffffffffd8ce8a7
   e:	81 e3 00 02 00 00    	and    $0x200,%ebx
  14:	75 1d                	jne    0x33
  16:	9c                   	pushf
  17:	58                   	pop    %rax
  18:	f6 c4 02             	test   $0x2,%ah
  1b:	75 29                	jne    0x46
  1d:	48 85 db             	test   %rbx,%rbx
  20:	74 01                	je     0x23
  22:	fb                   	sti
  23:	65 ff 0d a5 75 f4 46 	decl   %gs:0x46f475a5(%rip)        # 0x46f475cf
  2a:*	74 0e                	je     0x3a		<-- trapping instruction
  2c:	5b                   	pop    %rbx
  2d:	5d                   	pop    %rbp
  2e:	c3                   	ret
  2f:	cc                   	int3
  30:	cc                   	int3
  31:	cc                   	int3
  32:	cc                   	int3
  33:	e8 3f 40 b2 fd       	call   0xfffffffffdb24077
  38:	eb dc                	jmp    0x16
  3a:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	74 0e                	je     0x10
   2:	5b                   	pop    %rbx
   3:	5d                   	pop    %rbp
   4:	c3                   	ret
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	cc                   	int3
   9:	e8 3f 40 b2 fd       	call   0xfffffffffdb2404d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
# 86.27 [+0.00] [  924.186876] RSP: 0018:ffffc9000af97aa0 EFLAGS: 00000286
# 86.27 [+0.00] [  924.187236] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff7883d80
# 86.27 [+0.00] [  924.187667] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb90f4f71
# 86.27 [+0.00] [  924.188084] RBP: ffffffffbcce5800 R08: 0000000000000001 R09: fffffbfff787f3ef
# 86.27 [+0.00] [  924.188496] R10: ffffffffbc3f9f7f R11: ffff8880190045c0 R12: 00000000ffffffff
# 86.27 [+0.00] [  924.188905] R13: 0000000000000001 R14: ffffffffbcce5908 R15: 00000000ffffffff
# 86.28 [+0.00] [  924.189356] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
# 86.28 [+0.00] [  924.189706] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636)
# 86.28 [+0.00] [  924.189923] process_output_block (drivers/tty/n_tty.c:574)
# 86.28 [+0.00] [  924.190217] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
# 86.28 [+0.00] [  924.190554] n_tty_write (drivers/tty/n_tty.c:2390)
# 86.28 [+0.00] [  924.190845] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360)
# 86.29 [+0.00] [  924.191125] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
# 86.29 [+0.00] [  924.191414] ? __pfx_woken_wake_function (kernel/sched/wait.c:439)
# 86.29 [+0.00] [  924.191697] ? lock_acquire (kernel/locking/lockdep.c:5822)
# 86.29 [+0.00] [  924.191973] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967)
# 86.30 [+0.00] [  924.192258] iterate_tty_write (drivers/tty/tty_io.c:1015)
# 86.30 [+0.00] [  924.192531] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
# 86.30 [+0.00] [  924.192811] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090)
# 86.30 [+0.00] [  924.193097] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
# 86.30 [+0.00] [  924.193309] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
# 86.30 [+0.00] [  924.193591] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
# 86.30 [+0.00] [  924.193870] ? lock_acquire (kernel/locking/lockdep.c:5822)
# 86.30 [+0.00] [  924.194155] ? __pfx_vfs_write (fs/read_write.c:660)
# 86.31 [+0.00] [  924.194454] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 37))
# 86.31 [+0.00] [  924.194748] ? __rseq_handle_notify_resume (kernel/rseq.c:333)
# 86.31 [+0.00] [  924.195108] ksys_write (fs/read_write.c:731)
# 86.31 [+0.00] [  924.195327] ? __pfx_ksys_write (fs/read_write.c:721)
# 86.31 [+0.00] [  924.195652] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
# 86.31 [+0.00] [  924.195938] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
# 86.31 [+0.00] [  924.196304] RIP: 0033:0x7f0b7435cb77
# 86.31 [+0.00] [ 924.196611] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
# 86.32 [+0.00] [  924.197633] RSP: 002b:00007ffd237d5b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 86.32 [+0.00] [  924.198067] RAX: ffffffffffffffda RBX: 000056188882e2b0 RCX: 00007f0b7435cb77
# 86.32 [+0.00] [  924.198485] RDX: 0000000000000001 RSI: 000056188882e2b0 RDI: 0000000000000001
# 86.32 [+0.00] [  924.198906] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 86.33 [+0.00] [  924.199333] R10: 0000000000000001 R11: 0000000000000246 R12: 00005618888195e0
# 86.33 [+0.00] [  924.199774] R13: 00005618887fa2a0 R14: 0000000000000001 R15: 00005618888195e0
| xx__-> echo $?
| 0
| xx__-> [  905.639282][T10791] Mirror/redirect action on
| [  924.181144][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[  924.182193][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  924.182554][    C0] Call Trace:
[  924.182782][    C0]  <IRQ>
[ 924.182938][ C0] dump_stack_lvl (lib/dump_stack.c:123)
[ 924.183223][ C0] __report_bad_irq (kernel/irq/spurious.c:214)
[ 924.183552][ C0] note_interrupt (kernel/irq/spurious.c:423)
[ 924.183822][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210)
[ 924.184097][ C0] handle_edge_irq (kernel/irq/chip.c:833)
[ 924.184393][ C0] __common_interrupt (./include/linux/irqdesc.h:173 arch/x86/kernel/irq.c:247 arch/x86/kernel/irq.c:259 arch/x86/kernel/irq.c:285)
[ 924.184684][ C0] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14))
[  924.184965][    C0]  </IRQ>
[  924.185116][    C0]  <TASK>
[ 924.185255][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
[ 924.185537][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[ 924.185916][ C0] Code: 10 e8 e1 73 8c fd 48 89 ef e8 99 e8 8c fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d a5 75 f4 46 <74> 0e 5b 5d c3 cc cc cc cc e8 3f 40 b2 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	e1 73                	loope  0x77
   4:	8c fd                	mov    %?,%ebp
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 99 e8 8c fd       	call   0xfffffffffd8ce8a7
   e:	81 e3 00 02 00 00    	and    $0x200,%ebx
  14:	75 1d                	jne    0x33
  16:	9c                   	pushf
  17:	58                   	pop    %rax
  18:	f6 c4 02             	test   $0x2,%ah
  1b:	75 29                	jne    0x46
  1d:	48 85 db             	test   %rbx,%rbx
  20:	74 01                	je     0x23
  22:	fb                   	sti
  23:	65 ff 0d a5 75 f4 46 	decl   %gs:0x46f475a5(%rip)        # 0x46f475cf
  2a:*	74 0e                	je     0x3a		<-- trapping instruction
  2c:	5b                   	pop    %rbx
  2d:	5d                   	pop    %rbp
  2e:	c3                   	ret
  2f:	cc                   	int3
  30:	cc                   	int3
  31:	cc                   	int3
  32:	cc                   	int3
  33:	e8 3f 40 b2 fd       	call   0xfffffffffdb24077
  38:	eb dc                	jmp    0x16
  3a:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	74 0e                	je     0x10
   2:	5b                   	pop    %rbx
   3:	5d                   	pop    %rbp
   4:	c3                   	ret
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	cc                   	int3
   9:	e8 3f 40 b2 fd       	call   0xfffffffffdb2404d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[  924.186876][    C0] RSP: 0018:ffffc9000af97aa0 EFLAGS: 00000286
[  924.187236][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff7883d80
[  924.187667][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb90f4f71
[  924.188084][    C0] RBP: ffffffffbcce5800 R08: 0000000000000001 R09: fffffbfff787f3ef
[  924.188496][    C0] R10: ffffffffbc3f9f7f R11: ffff8880190045c0 R12: 00000000ffffffff
[  924.188905][    C0] R13: 0000000000000001 R14: ffffffffbcce5908 R15: 00000000ffffffff
[ 924.189356][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 924.189706][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636)
[ 924.189923][ C0] process_output_block (drivers/tty/n_tty.c:574)
[ 924.190217][ C0] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 924.190554][ C0] n_tty_write (drivers/tty/n_tty.c:2390)
[ 924.190845][ C0] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360)
[ 924.191125][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 924.191414][ C0] ? __pfx_woken_wake_function (kernel/sched/wait.c:439)
[ 924.191697][ C0] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 924.191973][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967)
[ 924.192258][ C0] iterate_tty_write (drivers/tty/tty_io.c:1015)
[ 924.192531][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
[ 924.192811][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090)
[ 924.193097][ C0] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
[ 924.193309][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 924.193591][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 924.193870][ C0] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 924.194155][ C0] ? __pfx_vfs_write (fs/read_write.c:660)
[ 924.194454][ C0] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 37))
[ 924.194748][ C0] ? __rseq_handle_notify_resume (kernel/rseq.c:333)
[ 924.195108][ C0] ksys_write (fs/read_write.c:731)
[ 924.195327][ C0] ? __pfx_ksys_write (fs/read_write.c:721)
[ 924.195652][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 924.195938][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  924.196304][    C0] RIP: 0033:0x7f0b7435cb77
[ 924.196611][ C0] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  924.197633][    C0] RSP: 002b:00007ffd237d5b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  924.198067][    C0] RAX: ffffffffffffffda RBX: 000056188882e2b0 RCX: 00007f0b7435cb77
[  924.198485][    C0] RDX: 0000000000000001 RSI: 000056188882e2b0 RDI: 0000000000000001
[  924.198906][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  924.199333][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 00005618888195e0


Finger prints:
__report_bad_irq:note_interrupt:handle_irq_event:handle_edge_irq:__common_interrupt