======================================
| # 71.81 [+0.00] [  322.797884] vx10: left promiscuous mode
| # 71.81 [+0.00] [  322.797947] br1: port 1(vx10) entered disabled state
| # 71.81 [+0.00] [  494.136372] Mirror/redirect action on
| # 71.81 [+0.00] [  506.989512] irq 51: nobody cared (try booting with the "irqpoll" option)
# 71.82 [+0.00] [  506.989670] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 71.82 [+0.00] [  506.989672] Call Trace:
# 71.82 [+0.00] [  506.989675]  <IRQ>
# 71.82 [+0.00] [  506.989680]  dump_stack_lvl (lib/dump_stack.c:123)
# 71.82 [+0.00] [  506.989689]  __report_bad_irq (kernel/irq/spurious.c:170)
# 71.82 [+0.00] [  506.989694]  note_interrupt (kernel/irq/spurious.c:372)
# 71.82 [+0.00] [  506.989696]  handle_irq_event (kernel/irq/handle.c:245 kernel/irq/handle.c:257)
# 71.83 [+0.00] [  506.989701]  handle_edge_irq (kernel/irq/chip.c:857)
# 71.83 [+0.00] [  506.989704]  __common_interrupt (./include/asm-generic/irq_regs.h:29 arch/x86/kernel/irq.c:328)
# 71.83 [+0.00] [  506.989710]  common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14))
# 71.83 [+0.00] [  506.989716]  </IRQ>
# 71.83 [+0.00] [  506.989717]  <TASK>
# 71.83 [+0.00] [  506.989718]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688)
# 71.83 [+0.00] [  506.989724] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
# 71.83 [+0.00] [  506.989729] Code: f3 00 74 01 c3 0f 1f 44 00 00 c3 0f 1f 00 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d f4 f1 f3 00 <74> 01 c3 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f
All code
========
   0:	f3 00 74 01 c3       	repz add %dh,-0x3d(%rcx,%rax,1)
   5:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   a:	c3                   	ret
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  17:	c6 07 00             	movb   $0x0,(%rdi)
  1a:	f7 c6 00 02 00 00    	test   $0x200,%esi
  20:	74 01                	je     0x23
  22:	fb                   	sti
  23:	65 ff 0d f4 f1 f3 00 	decl   %gs:0xf3f1f4(%rip)        # 0xf3f21e
  2a:*	74 01                	je     0x2d		<-- trapping instruction
  2c:	c3                   	ret
  2d:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  32:	c3                   	ret
  33:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  3a:	00 00 00 00 
  3e:	f3                   	repz
  3f:	0f                   	.byte 0xf

Code starting with the faulting instruction
===========================================
   0:	74 01                	je     0x3
   2:	c3                   	ret
   3:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   8:	c3                   	ret
   9:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  10:	00 00 00 00 
  14:	f3                   	repz
  15:	0f                   	.byte 0xf
# 71.84 [+0.01] [  506.989731] RSP: 0018:ffffaedac69abd40 EFLAGS: 00000286
# 71.84 [+0.00] [  506.989733] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000017
# 71.84 [+0.00] [  506.989735] RDX: ffffffffbad67b68 RSI: 0000000000000282 RDI: ffffffffbc0f2380
# 71.85 [+0.00] [  506.989736] RBP: ffff92fbc1ff4000 R08: 000000761dccb42c R09: 0000000000000001
# 71.85 [+0.00] [  506.989737] R10: ffff92fbc1ebe9f8 R11: 0000000000000000 R12: 0000000000000001
# 71.85 [+0.00] [  506.989738] R13: ffffffffbc0f2380 R14: 0000000000000282 R15: ffffaedac050d000
# 71.85 [+0.00] [  506.989741]  ? rpm_suspend (./arch/x86/include/asm/jump_label.h:36 ./include/trace/events/rpm.h:84 drivers/base/power/runtime.c:744)
# 71.85 [+0.00] [  506.989747]  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:634)
# 71.86 [+0.00] [  506.989755]  n_tty_write (drivers/tty/n_tty.c:561 drivers/tty/n_tty.c:2377)
# 71.86 [+0.00] [  506.989760]  ? swake_up_all (kernel/sched/wait.c:458)
# 71.86 [+0.00] [  506.989765]  file_tty_write.constprop.0 (drivers/tty/tty_io.c:1006 drivers/tty/tty_io.c:1081)
# 71.86 [+0.00] [  506.989767]  vfs_write (fs/read_write.c:594 fs/read_write.c:686)
# 71.86 [+0.00] [  506.989775]  ksys_write (fs/read_write.c:738)
# 71.86 [+0.00] [  506.989777]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
# 71.86 [+0.00] [  506.989779]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
# 71.86 [+0.00] [  506.989781] RIP: 0033:0x7f542a40d257
# 71.87 [+0.00] [  506.989784] 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
# 71.87 [+0.01] [  506.989785] RSP: 002b:00007fff199dcab8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 71.88 [+0.00] [  506.989786] RAX: ffffffffffffffda RBX: 0000562f03ead160 RCX: 00007f542a40d257
# 71.88 [+0.00] [  506.989787] RDX: 0000000000000001 RSI: 0000562f03ead160 RDI: 0000000000000001
# 71.88 [+0.00] [  506.989788] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 71.88 [+0.00] [  506.989789] R10: 0000000000000001 R11: 0000000000000246 R12: 0000562f03e995a0
# 71.88 [+0.00] [  506.989790] R13: 0000562f03e7a2a0 R14: 0000000000000001 R15: 0000562f03e995a0
| xx__-> echo $?
| 0
| xx__-> [  494.136372] Mirror/redirect action on
| [  506.989512] irq 51: nobody cared (try booting with the "irqpoll" option)
[  506.989670] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  506.989672] Call Trace:
[  506.989675]  <IRQ>
[  506.989680]  dump_stack_lvl (lib/dump_stack.c:123)
[  506.989689]  __report_bad_irq (kernel/irq/spurious.c:170)
[  506.989694]  note_interrupt (kernel/irq/spurious.c:372)
[  506.989696]  handle_irq_event (kernel/irq/handle.c:245 kernel/irq/handle.c:257)
[  506.989701]  handle_edge_irq (kernel/irq/chip.c:857)
[  506.989704]  __common_interrupt (./include/asm-generic/irq_regs.h:29 arch/x86/kernel/irq.c:328)
[  506.989710]  common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14))
[  506.989716]  </IRQ>
[  506.989717]  <TASK>
[  506.989718]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688)
[  506.989724] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[  506.989729] Code: f3 00 74 01 c3 0f 1f 44 00 00 c3 0f 1f 00 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d f4 f1 f3 00 <74> 01 c3 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f
All code
========
   0:	f3 00 74 01 c3       	repz add %dh,-0x3d(%rcx,%rax,1)
   5:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   a:	c3                   	ret
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  17:	c6 07 00             	movb   $0x0,(%rdi)
  1a:	f7 c6 00 02 00 00    	test   $0x200,%esi
  20:	74 01                	je     0x23
  22:	fb                   	sti
  23:	65 ff 0d f4 f1 f3 00 	decl   %gs:0xf3f1f4(%rip)        # 0xf3f21e
  2a:*	74 01                	je     0x2d		<-- trapping instruction
  2c:	c3                   	ret
  2d:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  32:	c3                   	ret
  33:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  3a:	00 00 00 00 
  3e:	f3                   	repz
  3f:	0f                   	.byte 0xf

Code starting with the faulting instruction
===========================================
   0:	74 01                	je     0x3
   2:	c3                   	ret
   3:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   8:	c3                   	ret
   9:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  10:	00 00 00 00 
  14:	f3                   	repz
  15:	0f                   	.byte 0xf
[  506.989731] RSP: 0018:ffffaedac69abd40 EFLAGS: 00000286
[  506.989733] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000017
[  506.989735] RDX: ffffffffbad67b68 RSI: 0000000000000282 RDI: ffffffffbc0f2380
[  506.989736] RBP: ffff92fbc1ff4000 R08: 000000761dccb42c R09: 0000000000000001
[  506.989737] R10: ffff92fbc1ebe9f8 R11: 0000000000000000 R12: 0000000000000001
[  506.989738] R13: ffffffffbc0f2380 R14: 0000000000000282 R15: ffffaedac050d000
[  506.989741]  ? rpm_suspend (./arch/x86/include/asm/jump_label.h:36 ./include/trace/events/rpm.h:84 drivers/base/power/runtime.c:744)
[  506.989747]  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:634)
[  506.989755]  n_tty_write (drivers/tty/n_tty.c:561 drivers/tty/n_tty.c:2377)
[  506.989760]  ? swake_up_all (kernel/sched/wait.c:458)
[  506.989765]  file_tty_write.constprop.0 (drivers/tty/tty_io.c:1006 drivers/tty/tty_io.c:1081)
[  506.989767]  vfs_write (fs/read_write.c:594 fs/read_write.c:686)
[  506.989775]  ksys_write (fs/read_write.c:738)
[  506.989777]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  506.989779]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  506.989781] RIP: 0033:0x7f542a40d257
[  506.989784] 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
[  506.989785] RSP: 002b:00007fff199dcab8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  506.989786] RAX: ffffffffffffffda RBX: 0000562f03ead160 RCX: 00007f542a40d257
[  506.989787] RDX: 0000000000000001 RSI: 0000562f03ead160 RDI: 0000000000000001
[  506.989788] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  506.989789] R10: 0000000000000001 R11: 0000000000000246 R12: 0000562f03e995a0


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