======================================
| # 96.53 [+0.01] [  893.935832] vx10: left promiscuous mode
| # 96.53 [+0.00] [  893.936152] br1: port 1(vx10) entered disabled state
| # 96.53 [+0.00] [  914.183639] Mirror/redirect action on
| # 96.53 [+0.00] [  985.308077] irq 51: nobody cared (try booting with the "irqpoll" option)
# 96.54 [+0.00] [  985.308787] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 96.54 [+0.00] [  985.309008] Call Trace:
# 96.54 [+0.00] [  985.309147]  <IRQ>
# 96.54 [+0.00] [  985.309265] dump_stack_lvl (lib/dump_stack.c:123)
# 96.54 [+0.00] [  985.309451] __report_bad_irq (kernel/irq/spurious.c:214)
# 96.54 [+0.00] [  985.309626] note_interrupt (kernel/irq/spurious.c:423)
# 96.55 [+0.00] [  985.309798] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210)
# 96.55 [+0.00] [  985.309970] handle_edge_irq (kernel/irq/chip.c:833)
# 96.55 [+0.00] [  985.310145] __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)
# 96.55 [+0.00] [  985.310330] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14))
# 96.55 [+0.00] [  985.310519]  </IRQ>
# 96.55 [+0.00] [  985.310608]  <TASK>
# 96.55 [+0.00] [  985.310696] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
# 96.55 [+0.00] [  985.310866] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
# 96.55 [+0.00] [ 985.311084] Code: 10 e8 31 aa 8b fd 48 89 ef e8 f9 1e 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 55 93 93 75 <74> 0e 5b 5d c3 cc cc cc cc e8 df 67 b1 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	31 aa 8b fd 48 89    	xor    %ebp,-0x76b70275(%rdx)
   8:	ef                   	out    %eax,(%dx)
   9:	e8 f9 1e 8c fd       	call   0xfffffffffd8c1f07
   e:	81 e3 00 02 00 00    	and    $0x200,%ebx
  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 55 93 93 75 	decl   %gs:0x75939355(%rip)        # 0x7593937f
  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 df 67 b1 fd       	call   0xfffffffffdb16817
  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 df 67 b1 fd       	call   0xfffffffffdb167ed
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
# 96.56 [+0.00] [  985.311673] RSP: 0018:ffffc9000ba17aa0 EFLAGS: 00000286
# 96.56 [+0.00] [  985.311915] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1b44f99
# 96.56 [+0.00] [  985.312175] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8a703181
# 96.56 [+0.00] [  985.312429] RBP: ffffffff8e2ee800 R08: 0000000000000001 R09: fffffbfff1b405ef
# 96.57 [+0.00] [  985.312685] R10: ffffffff8da02f7f R11: ffff88800d2bc5c0 R12: 00000000ffffffff
# 96.57 [+0.00] [  985.312950] R13: 0000000000000001 R14: ffffffff8e2ee908 R15: 00000000ffffffff
# 96.57 [+0.00] [  985.313217] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
# 96.57 [+0.00] [  985.313437] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636)
# 96.57 [+0.00] [  985.313577] process_output_block (drivers/tty/n_tty.c:574)
# 96.57 [+0.00] [  985.313751] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
# 96.57 [+0.00] [  985.313974] n_tty_write (drivers/tty/n_tty.c:2390)
# 96.58 [+0.00] [  985.314151] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360)
# 96.58 [+0.00] [  985.314326] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
# 96.58 [+0.00] [  985.314495] ? __pfx_woken_wake_function (kernel/sched/wait.c:439)
# 96.58 [+0.00] [  985.314668] ? lock_acquire (kernel/locking/lockdep.c:5822)
# 96.58 [+0.00] [  985.314837] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967)
# 96.58 [+0.00] [  985.315017] iterate_tty_write (drivers/tty/tty_io.c:1015)
# 96.58 [+0.00] [  985.315196] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
# 96.58 [+0.00] [  985.315376] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090)
# 96.58 [+0.00] [  985.315551] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
# 96.59 [+0.00] [  985.315695] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
# 96.59 [+0.00] [  985.315871] ? __pfx_vfs_write (fs/read_write.c:660)
# 96.59 [+0.00] [  985.316045] ? clockevents_program_event (kernel/time/clockevents.c:326)
# 96.59 [+0.00] [  985.316231] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3))
# 96.59 [+0.00] [  985.316448] ksys_write (fs/read_write.c:731)
# 96.59 [+0.00] [  985.316584] ? __pfx_ksys_write (fs/read_write.c:721)
# 96.59 [+0.00] [  985.316764] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
# 96.59 [+0.00] [  985.316935] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
# 96.60 [+0.00] [  985.317150] RIP: 0033:0x7efed0806b77
# 96.60 [+0.00] [ 985.317329] 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
# 96.60 [+0.00] [  985.317921] RSP: 002b:00007fff7d40c318 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 96.60 [+0.00] [  985.318187] RAX: ffffffffffffffda RBX: 000055bf308573f0 RCX: 00007efed0806b77
# 96.60 [+0.00] [  985.318441] RDX: 0000000000000001 RSI: 000055bf308573f0 RDI: 0000000000000001
# 96.61 [+0.00] [  985.318691] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 96.61 [+0.00] [  985.318951] R10: 0000000000000001 R11: 0000000000000246 R12: 000055bf308425e0
# 96.61 [+0.00] [  985.319207] R13: 000055bf308232a0 R14: 0000000000000001 R15: 000055bf308425e0
| xx__-> echo $?
| 0
| xx__-> [  914.183639][T10785] Mirror/redirect action on
| [  985.308077][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[  985.308787][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  985.309008][    C0] Call Trace:
[  985.309147][    C0]  <IRQ>
[ 985.309265][ C0] dump_stack_lvl (lib/dump_stack.c:123)
[ 985.309451][ C0] __report_bad_irq (kernel/irq/spurious.c:214)
[ 985.309626][ C0] note_interrupt (kernel/irq/spurious.c:423)
[ 985.309798][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210)
[ 985.309970][ C0] handle_edge_irq (kernel/irq/chip.c:833)
[ 985.310145][ 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)
[ 985.310330][ C0] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14))
[  985.310519][    C0]  </IRQ>
[  985.310608][    C0]  <TASK>
[ 985.310696][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
[ 985.310866][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[ 985.311084][ C0] Code: 10 e8 31 aa 8b fd 48 89 ef e8 f9 1e 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 55 93 93 75 <74> 0e 5b 5d c3 cc cc cc cc e8 df 67 b1 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	31 aa 8b fd 48 89    	xor    %ebp,-0x76b70275(%rdx)
   8:	ef                   	out    %eax,(%dx)
   9:	e8 f9 1e 8c fd       	call   0xfffffffffd8c1f07
   e:	81 e3 00 02 00 00    	and    $0x200,%ebx
  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 55 93 93 75 	decl   %gs:0x75939355(%rip)        # 0x7593937f
  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 df 67 b1 fd       	call   0xfffffffffdb16817
  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 df 67 b1 fd       	call   0xfffffffffdb167ed
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[  985.311673][    C0] RSP: 0018:ffffc9000ba17aa0 EFLAGS: 00000286
[  985.311915][    C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1b44f99
[  985.312175][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8a703181
[  985.312429][    C0] RBP: ffffffff8e2ee800 R08: 0000000000000001 R09: fffffbfff1b405ef
[  985.312685][    C0] R10: ffffffff8da02f7f R11: ffff88800d2bc5c0 R12: 00000000ffffffff
[  985.312950][    C0] R13: 0000000000000001 R14: ffffffff8e2ee908 R15: 00000000ffffffff
[ 985.313217][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 985.313437][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636)
[ 985.313577][ C0] process_output_block (drivers/tty/n_tty.c:574)
[ 985.313751][ C0] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 985.313974][ C0] n_tty_write (drivers/tty/n_tty.c:2390)
[ 985.314151][ C0] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360)
[ 985.314326][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 985.314495][ C0] ? __pfx_woken_wake_function (kernel/sched/wait.c:439)
[ 985.314668][ C0] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 985.314837][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967)
[ 985.315017][ C0] iterate_tty_write (drivers/tty/tty_io.c:1015)
[ 985.315196][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
[ 985.315376][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090)
[ 985.315551][ C0] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
[ 985.315695][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 985.315871][ C0] ? __pfx_vfs_write (fs/read_write.c:660)
[ 985.316045][ C0] ? clockevents_program_event (kernel/time/clockevents.c:326)
[ 985.316231][ C0] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3))
[ 985.316448][ C0] ksys_write (fs/read_write.c:731)
[ 985.316584][ C0] ? __pfx_ksys_write (fs/read_write.c:721)
[ 985.316764][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 985.316935][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  985.317150][    C0] RIP: 0033:0x7efed0806b77
[ 985.317329][ 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
[  985.317921][    C0] RSP: 002b:00007fff7d40c318 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  985.318187][    C0] RAX: ffffffffffffffda RBX: 000055bf308573f0 RCX: 00007efed0806b77
[  985.318441][    C0] RDX: 0000000000000001 RSI: 000055bf308573f0 RDI: 0000000000000001
[  985.318691][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  985.318951][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 000055bf308425e0


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