======================================
| # 76.77 [+0.00] [ 1472.963085] vx10: left promiscuous mode
| # 76.77 [+0.00] [ 1472.964000] br1: port 1(vx10) entered disabled state
| # 76.77 [+0.00] [ 1503.469464] Mirror/redirect action on
| # 76.77 [+0.00] [ 1522.607909] irq 51: nobody cared (try booting with the "irqpoll" option)
# 76.77 [+0.00] [ 1522.608476] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 76.78 [+0.00] [ 1522.608483] Call Trace:
# 76.78 [+0.00] [ 1522.608487]  <IRQ>
# 76.78 [+0.00] [ 1522.608490] dump_stack_lvl (lib/dump_stack.c:123) 
# 76.78 [+0.00] [ 1522.608527] __report_bad_irq (kernel/irq/spurious.c:170) 
# 76.78 [+0.00] [ 1522.608543] note_interrupt (kernel/irq/spurious.c:372) 
# 76.78 [+0.00] [ 1522.608552] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 76.78 [+0.00] [ 1522.608561] handle_edge_irq (kernel/irq/chip.c:851) 
# 76.78 [+0.00] [ 1522.608572] __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) 
# 76.78 [+0.00] [ 1522.608592] common_interrupt (arch/x86/kernel/irq.c:285 (discriminator 14)) 
# 76.78 [+0.00] [ 1522.608600]  </IRQ>
# 76.78 [+0.00] [ 1522.608601]  <TASK>
# 76.78 [+0.00] [ 1522.608605] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 76.79 [+0.00] [ 1522.608616] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 76.79 [+0.00] [ 1522.608624] Code: 74 24 10 e8 b1 72 7d fd 48 89 ef e8 69 c5 7d 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> 1a a7 71 fd 65 8b 05 53 89 b4 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:	b1 72                	mov    $0x72,%cl
   6:	7d fd                	jge    0x5
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 69 c5 7d fd       	call   0xfffffffffd7dc579
  10:	81 e3 00 02 00 00    	and    $0x200,%ebx
  16:	75 29                	jne    0x41
  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 1a a7 71 fd       	call   0xfffffffffd71a749		<-- trapping instruction
  2f:	65 8b 05 53 89 b4 02 	mov    %gs:0x2b48953(%rip),%eax        # 0x2b48989
  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 1a a7 71 fd       	call   0xfffffffffd71a71f
   5:	65 8b 05 53 89 b4 02 	mov    %gs:0x2b48953(%rip),%eax        # 0x2b4895f
   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
# 76.79 [+0.00] [ 1522.608627] RSP: 0018:ffffc90002c47aa0 EFLAGS: 00000206
# 76.79 [+0.00] [ 1522.608635] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000040
# 76.79 [+0.00] [ 1522.608638] RDX: 0000000000000000 RSI: ffffffff95eac568 RDI: 0000000000000001
# 76.80 [+0.00] [ 1522.608640] RBP: ffffffff98dad480 R08: 0000000000000001 R09: 0000000000000001
# 76.80 [+0.00] [ 1522.608642] R10: ffffffff96e009d7 R11: ffff8880060f8970 R12: 00000000ffffffff
# 76.80 [+0.00] [ 1522.608644] R13: 0000000000000001 R14: ffffffff98dad588 R15: 00000000ffffffff
# 76.80 [+0.00] [ 1522.608660] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:92 drivers/tty/serial/serial_core.c:88 drivers/tty/serial/serial_core.c:637) 
# 76.80 [+0.00] [ 1522.608682] process_output_block (drivers/tty/n_tty.c:561) 
# 76.80 [+0.00] [ 1522.608695] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
# 76.80 [+0.00] [ 1522.608703] n_tty_write (drivers/tty/n_tty.c:2378) 
# 76.80 [+0.00] [ 1522.608715] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2348) 
# 76.81 [+0.00] [ 1522.608721] ? __pfx_woken_wake_function (kernel/sched/wait.c:440) 
# 76.81 [+0.00] [ 1522.608729] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
# 76.81 [+0.00] [ 1522.608735] ? iterate_tty_write (drivers/tty/tty_io.c:939 drivers/tty/tty_io.c:958) 
# 76.81 [+0.00] [ 1522.608747] iterate_tty_write (drivers/tty/tty_io.c:1006) 
# 76.81 [+0.00] [ 1522.608755] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
# 76.81 [+0.00] [ 1522.608763] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1081) 
# 76.81 [+0.00] [ 1522.608771] vfs_write (fs/read_write.c:593 fs/read_write.c:686) 
# 76.81 [+0.00] [ 1522.608778] ? sched_balance_domains (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/sched/fair.c:12169) 
# 76.81 [+0.00] [ 1522.608784] ? __lock_release (kernel/locking/lockdep.c:5536) 
# 76.81 [+0.00] [ 1522.608788] ? __pfx_vfs_write (fs/read_write.c:667) 
# 76.82 [+0.00] [ 1522.608795] ? sched_balance_domains (kernel/sched/fair.c:12176) 
# 76.82 [+0.00] [ 1522.608813] ksys_write (fs/read_write.c:738) 
# 76.82 [+0.00] [ 1522.608817] ? __pfx_ksys_write (fs/read_write.c:728) 
# 76.82 [+0.00] [ 1522.608821] ? handle_softirqs (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:426 kernel/softirq.c:607) 
# 76.82 [+0.00] [ 1522.608838] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
# 76.82 [+0.00] [ 1522.608844] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 76.82 [+0.00] [ 1522.608847] RIP: 0033:0x7f86387f8337
# 76.82 [+0.00] [ 1522.608852] Code: 0f 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:	0f 00                	(bad)
   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
# 76.83 [+0.00] [ 1522.608855] RSP: 002b:00007ffee79a2298 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 76.83 [+0.00] [ 1522.608858] RAX: ffffffffffffffda RBX: 000055b0339a32b0 RCX: 00007f86387f8337
# 76.83 [+0.00] [ 1522.608860] RDX: 0000000000000001 RSI: 000055b0339a32b0 RDI: 0000000000000001
# 76.83 [+0.00] [ 1522.608861] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 76.83 [+0.00] [ 1522.608863] R10: 0000000000000001 R11: 0000000000000246 R12: 000055b03398e5e0
# 76.84 [+0.00] [ 1522.608865] R13: 000055b03396f2a0 R14: 0000000000000001 R15: 000055b03398e5e0
| xx__-> echo $?
| 0
| xx__-> [ 1503.469464][T11823] Mirror/redirect action on
| [ 1522.607909][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 1522.608476][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1522.608483][    C0] Call Trace:
[ 1522.608487][    C0]  <IRQ>
[ 1522.608490][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1522.608527][ C0] __report_bad_irq (kernel/irq/spurious.c:170) 
[ 1522.608543][ C0] note_interrupt (kernel/irq/spurious.c:372) 
[ 1522.608552][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 1522.608561][ C0] handle_edge_irq (kernel/irq/chip.c:851) 
[ 1522.608572][ 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) 
[ 1522.608592][ C0] common_interrupt (arch/x86/kernel/irq.c:285 (discriminator 14)) 
[ 1522.608600][    C0]  </IRQ>
[ 1522.608601][    C0]  <TASK>
[ 1522.608605][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[ 1522.608616][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1522.608624][ C0] Code: 74 24 10 e8 b1 72 7d fd 48 89 ef e8 69 c5 7d 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> 1a a7 71 fd 65 8b 05 53 89 b4 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:	b1 72                	mov    $0x72,%cl
   6:	7d fd                	jge    0x5
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 69 c5 7d fd       	call   0xfffffffffd7dc579
  10:	81 e3 00 02 00 00    	and    $0x200,%ebx
  16:	75 29                	jne    0x41
  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 1a a7 71 fd       	call   0xfffffffffd71a749		<-- trapping instruction
  2f:	65 8b 05 53 89 b4 02 	mov    %gs:0x2b48953(%rip),%eax        # 0x2b48989
  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 1a a7 71 fd       	call   0xfffffffffd71a71f
   5:	65 8b 05 53 89 b4 02 	mov    %gs:0x2b48953(%rip),%eax        # 0x2b4895f
   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
[ 1522.608627][    C0] RSP: 0018:ffffc90002c47aa0 EFLAGS: 00000206
[ 1522.608635][    C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000040
[ 1522.608638][    C0] RDX: 0000000000000000 RSI: ffffffff95eac568 RDI: 0000000000000001
[ 1522.608640][    C0] RBP: ffffffff98dad480 R08: 0000000000000001 R09: 0000000000000001
[ 1522.608642][    C0] R10: ffffffff96e009d7 R11: ffff8880060f8970 R12: 00000000ffffffff
[ 1522.608644][    C0] R13: 0000000000000001 R14: ffffffff98dad588 R15: 00000000ffffffff
[ 1522.608660][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:92 drivers/tty/serial/serial_core.c:88 drivers/tty/serial/serial_core.c:637) 
[ 1522.608682][ C0] process_output_block (drivers/tty/n_tty.c:561) 
[ 1522.608695][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1522.608703][ C0] n_tty_write (drivers/tty/n_tty.c:2378) 
[ 1522.608715][ C0] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2348) 
[ 1522.608721][ C0] ? __pfx_woken_wake_function (kernel/sched/wait.c:440) 
[ 1522.608729][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
[ 1522.608735][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:939 drivers/tty/tty_io.c:958) 
[ 1522.608747][ C0] iterate_tty_write (drivers/tty/tty_io.c:1006) 
[ 1522.608755][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
[ 1522.608763][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1081) 
[ 1522.608771][ C0] vfs_write (fs/read_write.c:593 fs/read_write.c:686) 
[ 1522.608778][ C0] ? sched_balance_domains (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/sched/fair.c:12169) 
[ 1522.608784][ C0] ? __lock_release (kernel/locking/lockdep.c:5536) 
[ 1522.608788][ C0] ? __pfx_vfs_write (fs/read_write.c:667) 
[ 1522.608795][ C0] ? sched_balance_domains (kernel/sched/fair.c:12176) 
[ 1522.608813][ C0] ksys_write (fs/read_write.c:738) 
[ 1522.608817][ C0] ? __pfx_ksys_write (fs/read_write.c:728) 
[ 1522.608821][ C0] ? handle_softirqs (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:426 kernel/softirq.c:607) 
[ 1522.608838][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1522.608844][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1522.608847][    C0] RIP: 0033:0x7f86387f8337
[ 1522.608852][ C0] Code: 0f 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:	0f 00                	(bad)
   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
[ 1522.608855][    C0] RSP: 002b:00007ffee79a2298 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1522.608858][    C0] RAX: ffffffffffffffda RBX: 000055b0339a32b0 RCX: 00007f86387f8337
[ 1522.608860][    C0] RDX: 0000000000000001 RSI: 000055b0339a32b0 RDI: 0000000000000001
[ 1522.608861][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1522.608863][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 000055b03398e5e0


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