======================================
| # 98.97 [+0.00] [  974.111632] vx10: left promiscuous mode
| # 98.97 [+0.00] [  974.111975] br1: port 1(vx10) entered disabled state
| # 98.97 [+0.00] [  994.595133] Mirror/redirect action on
| # 98.97 [+0.00] [ 1063.261301] irq 51: nobody cared (try booting with the "irqpoll" option)
# 98.98 [+0.00] [ 1063.262120] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 98.98 [+0.00] [ 1063.262366] Call Trace:
# 98.98 [+0.00] [ 1063.262525]  <IRQ>
# 98.98 [+0.00] [ 1063.262646] dump_stack_lvl (lib/dump_stack.c:123)
# 98.98 [+0.00] [ 1063.262884] __report_bad_irq (kernel/irq/spurious.c:214)
# 98.98 [+0.00] [ 1063.263110] note_interrupt (kernel/irq/spurious.c:423)
# 98.98 [+0.00] [ 1063.263318] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210)
# 98.98 [+0.00] [ 1063.263527] handle_edge_irq (kernel/irq/chip.c:833)
# 98.98 [+0.00] [ 1063.263737] __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)
# 98.98 [+0.00] [ 1063.263943] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14))
# 98.99 [+0.00] [ 1063.264159]  </IRQ>
# 98.99 [+0.00] [ 1063.264265]  <TASK>
# 98.99 [+0.00] [ 1063.264369] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
# 98.99 [+0.00] [ 1063.264581] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
# 98.99 [+0.00] [ 1063.264837] Code: 10 e8 51 23 8c fd 48 89 ef e8 09 98 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 f5 25 34 7c <74> 0e 5b 5d c3 cc cc cc cc e8 8f ef b1 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	51                   	push   %rcx
   3:	23 8c fd 48 89 ef e8 	and    -0x171076b8(%rbp,%rdi,8),%ecx
   a:	09 98 8c fd 81 e3    	or     %ebx,-0x1c7e0274(%rax)
  10:	00 02                	add    %al,(%rdx)
  12:	00 00                	add    %al,(%rax)
  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 f5 25 34 7c 	decl   %gs:0x7c3425f5(%rip)        # 0x7c34261f
  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 8f ef b1 fd       	call   0xfffffffffdb1efc7
  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 8f ef b1 fd       	call   0xfffffffffdb1ef9d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
# 98.99 [+0.00] [ 1063.265528] RSP: 0018:ffffc90002907aa0 EFLAGS: 00000286
# 99.00 [+0.00] [ 1063.265778] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff0e041b2
# 99.00 [+0.00] [ 1063.266069] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83cf9f21
# 99.00 [+0.00] [ 1063.266366] RBP: ffffffff878e7840 R08: 0000000000000001 R09: fffffbfff0dff7ef
# 99.00 [+0.00] [ 1063.266663] R10: ffffffff86ffbf7f R11: ffff888011c8c5c0 R12: 00000000ffffffff
# 99.00 [+0.00] [ 1063.266965] R13: 0000000000000001 R14: ffffffff878e7948 R15: 00000000ffffffff
# 99.01 [+0.00] [ 1063.267271] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
# 99.01 [+0.00] [ 1063.267532] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636)
# 99.01 [+0.00] [ 1063.267690] process_output_block (drivers/tty/n_tty.c:574)
# 99.01 [+0.00] [ 1063.267891] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
# 99.01 [+0.00] [ 1063.268156] n_tty_write (drivers/tty/n_tty.c:2390)
# 99.01 [+0.00] [ 1063.268367] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360)
# 99.01 [+0.00] [ 1063.268567] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
# 99.01 [+0.00] [ 1063.268761] ? __pfx_woken_wake_function (kernel/sched/wait.c:439)
# 99.01 [+0.00] [ 1063.268965] ? lock_acquire (kernel/locking/lockdep.c:5822)
# 99.02 [+0.00] [ 1063.269163] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967)
# 99.02 [+0.00] [ 1063.269371] iterate_tty_write (drivers/tty/tty_io.c:1015)
# 99.02 [+0.00] [ 1063.269572] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
# 99.02 [+0.00] [ 1063.269782] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090)
# 99.02 [+0.00] [ 1063.269985] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
# 99.02 [+0.00] [ 1063.270139] ? __schedule (kernel/sched/sched.h:1526 kernel/sched/core.c:6760)
# 99.02 [+0.00] [ 1063.270343] ? __pfx_vfs_write (fs/read_write.c:660)
# 99.02 [+0.00] [ 1063.270553] ? __pfx___schedule (kernel/sched/core.c:6637)
# 99.04 [+0.01] [ 1063.270757] ksys_write (fs/read_write.c:731)
# 99.04 [+0.00] [ 1063.270909] ? __pfx_ksys_write (fs/read_write.c:721)
# 99.04 [+0.00] [ 1063.271117] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
# 99.04 [+0.00] [ 1063.271323] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
# 99.04 [+0.00] [ 1063.271568] RIP: 0033:0x7f5a8b61fb77
# 99.04 [+0.00] [ 1063.271772] 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
# 99.05 [+0.00] [ 1063.272450] RSP: 002b:00007ffe3ec353a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 99.05 [+0.00] [ 1063.272761] RAX: ffffffffffffffda RBX: 0000556d91fce3f0 RCX: 00007f5a8b61fb77
# 99.05 [+0.00] [ 1063.273053] RDX: 0000000000000001 RSI: 0000556d91fce3f0 RDI: 0000000000000001
# 99.05 [+0.00] [ 1063.273348] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 99.06 [+0.00] [ 1063.273643] R10: 0000000000000001 R11: 0000000000000246 R12: 0000556d91fb95e0
# 99.06 [+0.00] [ 1063.273938] R13: 0000556d91f9a2a0 R14: 0000000000000001 R15: 0000556d91fb95e0
| xx__-> echo $?
| 0
| xx__-> [  994.595133][T23253] Mirror/redirect action on
| [ 1063.261301][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 1063.262120][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1063.262366][    C0] Call Trace:
[ 1063.262525][    C0]  <IRQ>
[ 1063.262646][ C0] dump_stack_lvl (lib/dump_stack.c:123)
[ 1063.262884][ C0] __report_bad_irq (kernel/irq/spurious.c:214)
[ 1063.263110][ C0] note_interrupt (kernel/irq/spurious.c:423)
[ 1063.263318][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210)
[ 1063.263527][ C0] handle_edge_irq (kernel/irq/chip.c:833)
[ 1063.263737][ 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)
[ 1063.263943][ C0] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14))
[ 1063.264159][    C0]  </IRQ>
[ 1063.264265][    C0]  <TASK>
[ 1063.264369][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
[ 1063.264581][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[ 1063.264837][ C0] Code: 10 e8 51 23 8c fd 48 89 ef e8 09 98 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 f5 25 34 7c <74> 0e 5b 5d c3 cc cc cc cc e8 8f ef b1 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	51                   	push   %rcx
   3:	23 8c fd 48 89 ef e8 	and    -0x171076b8(%rbp,%rdi,8),%ecx
   a:	09 98 8c fd 81 e3    	or     %ebx,-0x1c7e0274(%rax)
  10:	00 02                	add    %al,(%rdx)
  12:	00 00                	add    %al,(%rax)
  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 f5 25 34 7c 	decl   %gs:0x7c3425f5(%rip)        # 0x7c34261f
  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 8f ef b1 fd       	call   0xfffffffffdb1efc7
  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 8f ef b1 fd       	call   0xfffffffffdb1ef9d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[ 1063.265528][    C0] RSP: 0018:ffffc90002907aa0 EFLAGS: 00000286
[ 1063.265778][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff0e041b2
[ 1063.266069][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83cf9f21
[ 1063.266366][    C0] RBP: ffffffff878e7840 R08: 0000000000000001 R09: fffffbfff0dff7ef
[ 1063.266663][    C0] R10: ffffffff86ffbf7f R11: ffff888011c8c5c0 R12: 00000000ffffffff
[ 1063.266965][    C0] R13: 0000000000000001 R14: ffffffff878e7948 R15: 00000000ffffffff
[ 1063.267271][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 1063.267532][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636)
[ 1063.267690][ C0] process_output_block (drivers/tty/n_tty.c:574)
[ 1063.267891][ C0] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1063.268156][ C0] n_tty_write (drivers/tty/n_tty.c:2390)
[ 1063.268367][ C0] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360)
[ 1063.268567][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 1063.268761][ C0] ? __pfx_woken_wake_function (kernel/sched/wait.c:439)
[ 1063.268965][ C0] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 1063.269163][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967)
[ 1063.269371][ C0] iterate_tty_write (drivers/tty/tty_io.c:1015)
[ 1063.269572][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
[ 1063.269782][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090)
[ 1063.269985][ C0] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
[ 1063.270139][ C0] ? __schedule (kernel/sched/sched.h:1526 kernel/sched/core.c:6760)
[ 1063.270343][ C0] ? __pfx_vfs_write (fs/read_write.c:660)
[ 1063.270553][ C0] ? __pfx___schedule (kernel/sched/core.c:6637)
[ 1063.270757][ C0] ksys_write (fs/read_write.c:731)
[ 1063.270909][ C0] ? __pfx_ksys_write (fs/read_write.c:721)
[ 1063.271117][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 1063.271323][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1063.271568][    C0] RIP: 0033:0x7f5a8b61fb77
[ 1063.271772][ 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
[ 1063.272450][    C0] RSP: 002b:00007ffe3ec353a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1063.272761][    C0] RAX: ffffffffffffffda RBX: 0000556d91fce3f0 RCX: 00007f5a8b61fb77
[ 1063.273053][    C0] RDX: 0000000000000001 RSI: 0000556d91fce3f0 RDI: 0000000000000001
[ 1063.273348][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1063.273643][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 0000556d91fb95e0


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