======================================
| # 77.49 [+0.00] [ 1268.535921] vx10: left promiscuous mode
| # 77.49 [+0.00] [ 1268.536417] br1: port 1(vx10) entered disabled state
| # 77.49 [+0.00] [ 1293.875518] Mirror/redirect action on
| # 77.49 [+0.00] [ 1315.046840] irq 51: nobody cared (try booting with the "irqpoll" option)
# 77.49 [+0.00] [ 1315.047502] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 77.49 [+0.00] [ 1315.047505] Call Trace:
# 77.49 [+0.00] [ 1315.047507]  <IRQ>
# 77.49 [+0.00] [ 1315.047510] dump_stack_lvl (lib/dump_stack.c:123) 
# 77.50 [+0.00] [ 1315.047522] __report_bad_irq (kernel/irq/spurious.c:214) 
# 77.50 [+0.00] [ 1315.047533] note_interrupt (kernel/irq/spurious.c:423) 
# 77.50 [+0.00] [ 1315.047541] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 77.50 [+0.00] [ 1315.047547] handle_edge_irq (kernel/irq/chip.c:833) 
# 77.50 [+0.00] [ 1315.047557] __common_interrupt (./include/linux/irqdesc.h:173 arch/x86/kernel/irq.c:254 arch/x86/kernel/irq.c:266 arch/x86/kernel/irq.c:292) 
# 77.50 [+0.00] [ 1315.047565] common_interrupt (arch/x86/kernel/irq.c:285 (discriminator 14)) 
# 77.50 [+0.00] [ 1315.047570]  </IRQ>
# 77.50 [+0.00] [ 1315.047571]  <TASK>
# 77.50 [+0.00] [ 1315.047575] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 77.50 [+0.00] [ 1315.047580] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 77.50 [+0.00] [ 1315.047587] Code: 74 24 10 e8 c1 9c 80 fd 48 89 ef e8 39 ef 80 fd 81 e3 00 02 00 00 75 29 9c 58 f6 c4 02 75 35 48 85 db 74 01 fb bf 01 00 00 00 <e8> 5a f7 74 fd 65 8b 05 63 c8 96 02 85 c0 74 0e 5b 5d c3 cc cc cc
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	c1 9c 80 fd 48 89 ef 	rcrl   $0xe8,-0x1076b703(%rax,%rax,4)
   b:	e8 
   c:	39 ef                	cmp    %ebp,%edi
   e:	80 fd 81             	cmp    $0x81,%ch
  11:	e3 00                	jrcxz  0x13
  13:	02 00                	add    (%rax),%al
  15:	00 75 29             	add    %dh,0x29(%rbp)
  18:	9c                   	pushf
  19:	58                   	pop    %rax
  1a:	f6 c4 02             	test   $0x2,%ah
  1d:	75 35                	jne    0x54
  1f:	48 85 db             	test   %rbx,%rbx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
  2a:*	e8 5a f7 74 fd       	call   0xfffffffffd74f789		<-- trapping instruction
  2f:	65 8b 05 63 c8 96 02 	mov    %gs:0x296c863(%rip),%eax        # 0x296c899
  36:	85 c0                	test   %eax,%eax
  38:	74 0e                	je     0x48
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	c3                   	ret
  3d:	cc                   	int3
  3e:	cc                   	int3
  3f:	cc                   	int3

Code starting with the faulting instruction
===========================================
   0:	e8 5a f7 74 fd       	call   0xfffffffffd74f75f
   5:	65 8b 05 63 c8 96 02 	mov    %gs:0x296c863(%rip),%eax        # 0x296c86f
   c:	85 c0                	test   %eax,%eax
   e:	74 0e                	je     0x1e
  10:	5b                   	pop    %rbx
  11:	5d                   	pop    %rbp
  12:	c3                   	ret
  13:	cc                   	int3
  14:	cc                   	int3
  15:	cc                   	int3
# 77.51 [+0.00] [ 1315.047590] RSP: 0018:ffffc90000507aa0 EFLAGS: 00000206
# 77.51 [+0.00] [ 1315.047595] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000040
# 77.51 [+0.00] [ 1315.047597] RDX: 0000000000000000 RSI: ffffffff91c97737 RDI: 0000000000000001
# 77.51 [+0.00] [ 1315.047598] RBP: ffffffff94b92ce0 R08: 0000000000000001 R09: 0000000000000001
# 77.52 [+0.00] [ 1315.047600] R10: ffffffff92bf0997 R11: ffff888005cb0970 R12: 00000000ffffffff
# 77.52 [+0.00] [ 1315.047602] R13: 0000000000000001 R14: ffffffff94b92de8 R15: 00000000ffffffff
# 77.52 [+0.00] [ 1315.047618] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
# 77.52 [+0.00] [ 1315.047631] process_output_block (drivers/tty/n_tty.c:561) 
# 77.52 [+0.00] [ 1315.047637] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
# 77.52 [+0.00] [ 1315.047645] n_tty_write (drivers/tty/n_tty.c:2378) 
# 77.52 [+0.00] [ 1315.047656] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2348) 
# 77.52 [+0.00] [ 1315.047661] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
# 77.52 [+0.00] [ 1315.047671] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
# 77.53 [+0.00] [ 1315.047675] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
# 77.53 [+0.00] [ 1315.047687] iterate_tty_write (drivers/tty/tty_io.c:1015) 
# 77.53 [+0.00] [ 1315.047694] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
# 77.53 [+0.00] [ 1315.047701] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) 
# 77.53 [+0.00] [ 1315.047709] vfs_write (fs/read_write.c:591 fs/read_write.c:684) 
# 77.53 [+0.00] [ 1315.047719] ? find_held_lock (kernel/locking/lockdep.c:5348) 
# 77.53 [+0.00] [ 1315.047724] ? __pfx_vfs_write (fs/read_write.c:665) 
# 77.53 [+0.00] [ 1315.047733] ? clockevents_program_event (kernel/time/clockevents.c:326) 
# 77.53 [+0.00] [ 1315.047745] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
# 77.53 [+0.00] [ 1315.047753] ksys_write (fs/read_write.c:736) 
# 77.54 [+0.00] [ 1315.047758] ? __pfx_ksys_write (fs/read_write.c:726) 
# 77.54 [+0.00] [ 1315.047770] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
# 77.54 [+0.00] [ 1315.047777] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 77.54 [+0.00] [ 1315.047780] RIP: 0033:0x7fe3e79adb77
# 77.54 [+0.00] [ 1315.047785] 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
# 77.54 [+0.00] [ 1315.047787] RSP: 002b:00007ffe362e2418 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 77.55 [+0.00] [ 1315.047790] RAX: ffffffffffffffda RBX: 0000558f1646e330 RCX: 00007fe3e79adb77
# 77.55 [+0.00] [ 1315.047792] RDX: 0000000000000001 RSI: 0000558f1646e330 RDI: 0000000000000001
# 77.55 [+0.00] [ 1315.047794] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 77.55 [+0.00] [ 1315.047796] R10: 0000000000000001 R11: 0000000000000246 R12: 0000558f164595e0
# 77.55 [+0.00] [ 1315.047798] R13: 0000558f1643a2a0 R14: 0000000000000001 R15: 0000558f164595e0
| xx__-> echo $?
| 0
| xx__-> [ 1293.875518][T11386] Mirror/redirect action on
| [ 1315.046840][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 1315.047502][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1315.047505][    C0] Call Trace:
[ 1315.047507][    C0]  <IRQ>
[ 1315.047510][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1315.047522][ C0] __report_bad_irq (kernel/irq/spurious.c:214) 
[ 1315.047533][ C0] note_interrupt (kernel/irq/spurious.c:423) 
[ 1315.047541][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 1315.047547][ C0] handle_edge_irq (kernel/irq/chip.c:833) 
[ 1315.047557][ C0] __common_interrupt (./include/linux/irqdesc.h:173 arch/x86/kernel/irq.c:254 arch/x86/kernel/irq.c:266 arch/x86/kernel/irq.c:292) 
[ 1315.047565][ C0] common_interrupt (arch/x86/kernel/irq.c:285 (discriminator 14)) 
[ 1315.047570][    C0]  </IRQ>
[ 1315.047571][    C0]  <TASK>
[ 1315.047575][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[ 1315.047580][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1315.047587][ C0] Code: 74 24 10 e8 c1 9c 80 fd 48 89 ef e8 39 ef 80 fd 81 e3 00 02 00 00 75 29 9c 58 f6 c4 02 75 35 48 85 db 74 01 fb bf 01 00 00 00 <e8> 5a f7 74 fd 65 8b 05 63 c8 96 02 85 c0 74 0e 5b 5d c3 cc cc cc
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	c1 9c 80 fd 48 89 ef 	rcrl   $0xe8,-0x1076b703(%rax,%rax,4)
   b:	e8 
   c:	39 ef                	cmp    %ebp,%edi
   e:	80 fd 81             	cmp    $0x81,%ch
  11:	e3 00                	jrcxz  0x13
  13:	02 00                	add    (%rax),%al
  15:	00 75 29             	add    %dh,0x29(%rbp)
  18:	9c                   	pushf
  19:	58                   	pop    %rax
  1a:	f6 c4 02             	test   $0x2,%ah
  1d:	75 35                	jne    0x54
  1f:	48 85 db             	test   %rbx,%rbx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
  2a:*	e8 5a f7 74 fd       	call   0xfffffffffd74f789		<-- trapping instruction
  2f:	65 8b 05 63 c8 96 02 	mov    %gs:0x296c863(%rip),%eax        # 0x296c899
  36:	85 c0                	test   %eax,%eax
  38:	74 0e                	je     0x48
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	c3                   	ret
  3d:	cc                   	int3
  3e:	cc                   	int3
  3f:	cc                   	int3

Code starting with the faulting instruction
===========================================
   0:	e8 5a f7 74 fd       	call   0xfffffffffd74f75f
   5:	65 8b 05 63 c8 96 02 	mov    %gs:0x296c863(%rip),%eax        # 0x296c86f
   c:	85 c0                	test   %eax,%eax
   e:	74 0e                	je     0x1e
  10:	5b                   	pop    %rbx
  11:	5d                   	pop    %rbp
  12:	c3                   	ret
  13:	cc                   	int3
  14:	cc                   	int3
  15:	cc                   	int3
[ 1315.047590][    C0] RSP: 0018:ffffc90000507aa0 EFLAGS: 00000206
[ 1315.047595][    C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000040
[ 1315.047597][    C0] RDX: 0000000000000000 RSI: ffffffff91c97737 RDI: 0000000000000001
[ 1315.047598][    C0] RBP: ffffffff94b92ce0 R08: 0000000000000001 R09: 0000000000000001
[ 1315.047600][    C0] R10: ffffffff92bf0997 R11: ffff888005cb0970 R12: 00000000ffffffff
[ 1315.047602][    C0] R13: 0000000000000001 R14: ffffffff94b92de8 R15: 00000000ffffffff
[ 1315.047618][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
[ 1315.047631][ C0] process_output_block (drivers/tty/n_tty.c:561) 
[ 1315.047637][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1315.047645][ C0] n_tty_write (drivers/tty/n_tty.c:2378) 
[ 1315.047656][ C0] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2348) 
[ 1315.047661][ C0] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
[ 1315.047671][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1315.047675][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
[ 1315.047687][ C0] iterate_tty_write (drivers/tty/tty_io.c:1015) 
[ 1315.047694][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
[ 1315.047701][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) 
[ 1315.047709][ C0] vfs_write (fs/read_write.c:591 fs/read_write.c:684) 
[ 1315.047719][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 1315.047724][ C0] ? __pfx_vfs_write (fs/read_write.c:665) 
[ 1315.047733][ C0] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 1315.047745][ C0] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 1315.047753][ C0] ksys_write (fs/read_write.c:736) 
[ 1315.047758][ C0] ? __pfx_ksys_write (fs/read_write.c:726) 
[ 1315.047770][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1315.047777][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1315.047780][    C0] RIP: 0033:0x7fe3e79adb77
[ 1315.047785][ 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
[ 1315.047787][    C0] RSP: 002b:00007ffe362e2418 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1315.047790][    C0] RAX: ffffffffffffffda RBX: 0000558f1646e330 RCX: 00007fe3e79adb77
[ 1315.047792][    C0] RDX: 0000000000000001 RSI: 0000558f1646e330 RDI: 0000000000000001
[ 1315.047794][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1315.047796][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 0000558f164595e0


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