======================================
| # 90.83 [+0.00] [  789.753449] vx10: left promiscuous mode
| # 90.83 [+0.00] [  789.753953] br1: port 1(vx10) entered disabled state
| # 90.83 [+0.00] [  815.194626] Mirror/redirect action on
| # 90.83 [+0.00] [  878.576166] irq 51: nobody cared (try booting with the "irqpoll" option)
# 90.83 [+0.00] [  878.576787] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 90.84 [+0.00] [  878.576789] Call Trace:
# 90.84 [+0.00] [  878.576791]  <IRQ>
# 90.84 [+0.00] [  878.576794] dump_stack_lvl (lib/dump_stack.c:123) 
# 90.84 [+0.00] [  878.576804] __report_bad_irq (kernel/irq/spurious.c:205) 
# 90.84 [+0.00] [  878.576812] note_interrupt (kernel/irq/spurious.c:407) 
# 90.84 [+0.00] [  878.576825] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 90.84 [+0.00] [  878.576834] handle_edge_irq (kernel/irq/chip.c:791) 
# 90.84 [+0.00] [  878.576844] __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) 
# 90.84 [+0.00] [  878.576853] common_interrupt (arch/x86/kernel/irq.c:285 (discriminator 14)) 
# 90.84 [+0.00] [  878.576858]  </IRQ>
# 90.84 [+0.00] [  878.576859]  <TASK>
# 90.85 [+0.00] [  878.576863] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 90.85 [+0.00] [  878.576869] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 90.85 [+0.00] [ 878.576875] Code: 74 24 10 e8 c1 be 7c fd 48 89 ef e8 79 11 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> fa 0e 71 fd 65 8b 05 13 7d 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:	c1 be 7c fd 48 89 ef 	sarl   $0xef,-0x76b70284(%rsi)
   b:	e8 79 11 7d fd       	call   0xfffffffffd7d1189
  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 fa 0e 71 fd       	call   0xfffffffffd710f29		<-- trapping instruction
  2f:	65 8b 05 13 7d b4 02 	mov    %gs:0x2b47d13(%rip),%eax        # 0x2b47d49
  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 fa 0e 71 fd       	call   0xfffffffffd710eff
   5:	65 8b 05 13 7d b4 02 	mov    %gs:0x2b47d13(%rip),%eax        # 0x2b47d1f
   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
# 90.85 [+0.00] [  878.576879] RSP: 0018:ffffc900019e7aa0 EFLAGS: 00000206
# 90.85 [+0.00] [  878.576884] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000040
# 90.85 [+0.00] [  878.576887] RDX: 0000000000000000 RSI: ffffffffaaca1be4 RDI: 0000000000000001
# 90.86 [+0.00] [  878.576889] RBP: ffffffffadbb4f00 R08: 0000000000000001 R09: 0000000000000001
# 90.86 [+0.00] [  878.576892] R10: ffffffffabbfe5d7 R11: ffff8880061f8970 R12: 00000000ffffffff
# 90.86 [+0.00] [  878.576895] R13: 0000000000000001 R14: ffffffffadbb5008 R15: 00000000ffffffff
# 90.86 [+0.00] [  878.576915] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
# 90.86 [+0.00] [  878.576926] process_output_block (drivers/tty/n_tty.c:561) 
# 90.86 [+0.00] [  878.576933] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
# 90.86 [+0.00] [  878.576940] n_tty_write (drivers/tty/n_tty.c:2378) 
# 90.87 [+0.00] [  878.576952] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2348) 
# 90.87 [+0.00] [  878.576958] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
# 90.87 [+0.00] [  878.576966] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
# 90.87 [+0.00] [  878.576968] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
# 90.87 [+0.00] [  878.576978] iterate_tty_write (drivers/tty/tty_io.c:1016) 
# 90.87 [+0.00] [  878.576985] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
# 90.87 [+0.00] [  878.576995] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) 
# 90.87 [+0.00] [  878.577005] vfs_write (fs/read_write.c:593 fs/read_write.c:686) 
# 90.87 [+0.00] [  878.577014] ? __pfx_vfs_write (fs/read_write.c:667) 
# 90.87 [+0.00] [  878.577021] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
# 90.88 [+0.00] [  878.577026] ? rseq_update_cpu_node_id (kernel/rseq.c:189 (discriminator 10)) 
# 90.88 [+0.00] [  878.577033] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
# 90.88 [+0.00] [  878.577044] ksys_write (fs/read_write.c:738) 
# 90.88 [+0.00] [  878.577048] ? __pfx_ksys_write (fs/read_write.c:728) 
# 90.88 [+0.00] [  878.577061] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
# 90.88 [+0.00] [  878.577066] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 90.88 [+0.00] [  878.577069] RIP: 0033:0x7f0bdb9e9b77
# 90.88 [+0.00] [ 878.577074] 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
# 90.89 [+0.00] [  878.577076] RSP: 002b:00007ffface40c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 90.89 [+0.00] [  878.577079] RAX: ffffffffffffffda RBX: 00005618c835f3f0 RCX: 00007f0bdb9e9b77
# 90.89 [+0.00] [  878.577081] RDX: 0000000000000001 RSI: 00005618c835f3f0 RDI: 0000000000000001
# 90.89 [+0.00] [  878.577082] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 90.89 [+0.00] [  878.577084] R10: 0000000000000001 R11: 0000000000000246 R12: 00005618c834a5e0
# 90.89 [+0.00] [  878.577085] R13: 00005618c832b2a0 R14: 0000000000000001 R15: 00005618c834a5e0
| xx__-> echo $?
| 0
| xx__-> [  815.194626][ T3786] Mirror/redirect action on
| [  878.576166][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[  878.576787][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  878.576789][    C0] Call Trace:
[  878.576791][    C0]  <IRQ>
[ 878.576794][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 878.576804][ C0] __report_bad_irq (kernel/irq/spurious.c:205) 
[ 878.576812][ C0] note_interrupt (kernel/irq/spurious.c:407) 
[ 878.576825][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 878.576834][ C0] handle_edge_irq (kernel/irq/chip.c:791) 
[ 878.576844][ 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) 
[ 878.576853][ C0] common_interrupt (arch/x86/kernel/irq.c:285 (discriminator 14)) 
[  878.576858][    C0]  </IRQ>
[  878.576859][    C0]  <TASK>
[ 878.576863][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[ 878.576869][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 878.576875][ C0] Code: 74 24 10 e8 c1 be 7c fd 48 89 ef e8 79 11 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> fa 0e 71 fd 65 8b 05 13 7d 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:	c1 be 7c fd 48 89 ef 	sarl   $0xef,-0x76b70284(%rsi)
   b:	e8 79 11 7d fd       	call   0xfffffffffd7d1189
  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 fa 0e 71 fd       	call   0xfffffffffd710f29		<-- trapping instruction
  2f:	65 8b 05 13 7d b4 02 	mov    %gs:0x2b47d13(%rip),%eax        # 0x2b47d49
  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 fa 0e 71 fd       	call   0xfffffffffd710eff
   5:	65 8b 05 13 7d b4 02 	mov    %gs:0x2b47d13(%rip),%eax        # 0x2b47d1f
   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
[  878.576879][    C0] RSP: 0018:ffffc900019e7aa0 EFLAGS: 00000206
[  878.576884][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000040
[  878.576887][    C0] RDX: 0000000000000000 RSI: ffffffffaaca1be4 RDI: 0000000000000001
[  878.576889][    C0] RBP: ffffffffadbb4f00 R08: 0000000000000001 R09: 0000000000000001
[  878.576892][    C0] R10: ffffffffabbfe5d7 R11: ffff8880061f8970 R12: 00000000ffffffff
[  878.576895][    C0] R13: 0000000000000001 R14: ffffffffadbb5008 R15: 00000000ffffffff
[ 878.576915][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
[ 878.576926][ C0] process_output_block (drivers/tty/n_tty.c:561) 
[ 878.576933][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 878.576940][ C0] n_tty_write (drivers/tty/n_tty.c:2378) 
[ 878.576952][ C0] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2348) 
[ 878.576958][ C0] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
[ 878.576966][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 878.576968][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
[ 878.576978][ C0] iterate_tty_write (drivers/tty/tty_io.c:1016) 
[ 878.576985][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
[ 878.576995][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) 
[ 878.577005][ C0] vfs_write (fs/read_write.c:593 fs/read_write.c:686) 
[ 878.577014][ C0] ? __pfx_vfs_write (fs/read_write.c:667) 
[ 878.577021][ C0] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 878.577026][ C0] ? rseq_update_cpu_node_id (kernel/rseq.c:189 (discriminator 10)) 
[ 878.577033][ C0] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 878.577044][ C0] ksys_write (fs/read_write.c:738) 
[ 878.577048][ C0] ? __pfx_ksys_write (fs/read_write.c:728) 
[ 878.577061][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 878.577066][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  878.577069][    C0] RIP: 0033:0x7f0bdb9e9b77
[ 878.577074][ 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
[  878.577076][    C0] RSP: 002b:00007ffface40c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  878.577079][    C0] RAX: ffffffffffffffda RBX: 00005618c835f3f0 RCX: 00007f0bdb9e9b77
[  878.577081][    C0] RDX: 0000000000000001 RSI: 00005618c835f3f0 RDI: 0000000000000001
[  878.577082][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  878.577084][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 00005618c834a5e0


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