======================================
| # 97.75 [+0.00] [  885.503841] vx10: left promiscuous mode
| # 97.75 [+0.00] [  885.504167] br1: port 1(vx10) entered disabled state
| # 97.75 [+0.00] [  906.411593] Mirror/redirect action on
| # 97.75 [+0.00] [  964.564589] irq 51: nobody cared (try booting with the "irqpoll" option)
# 97.76 [+0.00] [  964.565301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 97.76 [+0.00] [  964.565533] Call Trace:
# 97.76 [+0.00] [  964.565683]  <IRQ>
# 97.76 [+0.00] [  964.565791] dump_stack_lvl (lib/dump_stack.c:123)
# 97.76 [+0.00] [  964.566006] __report_bad_irq (kernel/irq/spurious.c:214)
# 97.76 [+0.00] [  964.566203] note_interrupt (kernel/irq/spurious.c:423)
# 97.77 [+0.00] [  964.566401] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210)
# 97.77 [+0.00] [  964.566600] handle_edge_irq (kernel/irq/chip.c:833)
# 97.77 [+0.00] [  964.566808] __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)
# 97.77 [+0.00] [  964.567103] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14))
# 97.77 [+0.00] [  964.567291]  </IRQ>
# 97.77 [+0.00] [  964.567423]  <TASK>
# 97.77 [+0.00] [  964.567521] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
# 97.78 [+0.00] [  964.567729] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
# 97.78 [+0.00] [ 964.567975] Code: 10 e8 e1 73 8c fd 48 89 ef e8 99 e8 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 a5 75 14 76 <74> 0e 5b 5d c3 cc cc cc cc e8 3f 40 b2 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	e1 73                	loope  0x77
   4:	8c fd                	mov    %?,%ebp
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 99 e8 8c fd       	call   0xfffffffffd8ce8a7
   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 a5 75 14 76 	decl   %gs:0x761475a5(%rip)        # 0x761475cf
  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 3f 40 b2 fd       	call   0xfffffffffdb24077
  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 3f 40 b2 fd       	call   0xfffffffffdb2404d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
# 97.79 [+0.01] [  964.568628] RSP: 0018:ffffc9000b997aa0 EFLAGS: 00000286
# 97.79 [+0.00] [  964.568873] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1a43d35
# 97.79 [+0.00] [  964.569156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff89ef4f71
# 97.79 [+0.00] [  964.569433] RBP: ffffffff8dae5800 R08: 0000000000000001 R09: fffffbfff1a3f3ef
# 97.80 [+0.00] [  964.569726] R10: ffffffff8d1f9f7f R11: ffff888009818040 R12: 00000000ffffffff
# 97.80 [+0.00] [  964.570001] R13: 0000000000000001 R14: ffffffff8dae5908 R15: 00000000ffffffff
# 97.80 [+0.00] [  964.570287] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
# 97.81 [+0.00] [  964.570535] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636)
# 97.81 [+0.00] [  964.570690] process_output_block (drivers/tty/n_tty.c:574)
# 97.81 [+0.00] [  964.570877] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
# 97.83 [+0.02] [  964.571119] n_tty_write (drivers/tty/n_tty.c:2390)
# 97.83 [+0.01] [  964.571308] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360)
# 97.83 [+0.00] [  964.571494] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
# 97.84 [+0.00] [  964.571685] ? __pfx_woken_wake_function (kernel/sched/wait.c:439)
# 97.84 [+0.00] [  964.571871] ? lock_acquire (kernel/locking/lockdep.c:5822)
# 97.84 [+0.00] [  964.572052] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967)
# 97.84 [+0.00] [  964.572241] iterate_tty_write (drivers/tty/tty_io.c:1015)
# 97.84 [+0.00] [  964.572436] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
# 97.85 [+0.00] [  964.572627] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090)
# 97.85 [+0.00] [  964.572850] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
# 97.85 [+0.00] [  964.572996] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
# 97.85 [+0.00] [  964.573206] ? __pfx_vfs_write (fs/read_write.c:660)
# 97.85 [+0.00] [  964.573391] ? clockevents_program_event (kernel/time/clockevents.c:326)
# 97.86 [+0.00] [  964.573588] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3))
# 97.86 [+0.00] [  964.573826] ksys_write (fs/read_write.c:731)
# 97.86 [+0.00] [  964.573968] ? __pfx_ksys_write (fs/read_write.c:721)
# 97.86 [+0.00] [  964.574162] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
# 97.86 [+0.00] [  964.574346] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
# 97.86 [+0.00] [  964.574571] RIP: 0033:0x7f00cf452b77
# 97.87 [+0.00] [ 964.574760] 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
# 97.87 [+0.01] [  964.575392] RSP: 002b:00007ffc71fbb358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 97.88 [+0.00] [  964.575672] RAX: ffffffffffffffda RBX: 00005602ab7c23f0 RCX: 00007f00cf452b77
# 97.88 [+0.00] [  964.575945] RDX: 0000000000000001 RSI: 00005602ab7c23f0 RDI: 0000000000000001
# 97.88 [+0.00] [  964.576212] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 97.88 [+0.00] [  964.576487] R10: 0000000000000001 R11: 0000000000000246 R12: 00005602ab7ad5e0
# 97.89 [+0.00] [  964.576756] R13: 00005602ab78e2a0 R14: 0000000000000001 R15: 00005602ab7ad5e0
| xx__-> echo $?
| 0
| xx__-> [  906.411593][T10789] Mirror/redirect action on
| [  964.564589][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[  964.565301][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  964.565533][    C0] Call Trace:
[  964.565683][    C0]  <IRQ>
[ 964.565791][ C0] dump_stack_lvl (lib/dump_stack.c:123)
[ 964.566006][ C0] __report_bad_irq (kernel/irq/spurious.c:214)
[ 964.566203][ C0] note_interrupt (kernel/irq/spurious.c:423)
[ 964.566401][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210)
[ 964.566600][ C0] handle_edge_irq (kernel/irq/chip.c:833)
[ 964.566808][ 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)
[ 964.567103][ C0] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14))
[  964.567291][    C0]  </IRQ>
[  964.567423][    C0]  <TASK>
[ 964.567521][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
[ 964.567729][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[ 964.567975][ C0] Code: 10 e8 e1 73 8c fd 48 89 ef e8 99 e8 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 a5 75 14 76 <74> 0e 5b 5d c3 cc cc cc cc e8 3f 40 b2 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	e1 73                	loope  0x77
   4:	8c fd                	mov    %?,%ebp
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 99 e8 8c fd       	call   0xfffffffffd8ce8a7
   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 a5 75 14 76 	decl   %gs:0x761475a5(%rip)        # 0x761475cf
  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 3f 40 b2 fd       	call   0xfffffffffdb24077
  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 3f 40 b2 fd       	call   0xfffffffffdb2404d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[  964.568628][    C0] RSP: 0018:ffffc9000b997aa0 EFLAGS: 00000286
[  964.568873][    C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1a43d35
[  964.569156][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff89ef4f71
[  964.569433][    C0] RBP: ffffffff8dae5800 R08: 0000000000000001 R09: fffffbfff1a3f3ef
[  964.569726][    C0] R10: ffffffff8d1f9f7f R11: ffff888009818040 R12: 00000000ffffffff
[  964.570001][    C0] R13: 0000000000000001 R14: ffffffff8dae5908 R15: 00000000ffffffff
[ 964.570287][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 964.570535][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636)
[ 964.570690][ C0] process_output_block (drivers/tty/n_tty.c:574)
[ 964.570877][ C0] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 964.571119][ C0] n_tty_write (drivers/tty/n_tty.c:2390)
[ 964.571308][ C0] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360)
[ 964.571494][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 964.571685][ C0] ? __pfx_woken_wake_function (kernel/sched/wait.c:439)
[ 964.571871][ C0] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 964.572052][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967)
[ 964.572241][ C0] iterate_tty_write (drivers/tty/tty_io.c:1015)
[ 964.572436][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
[ 964.572627][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090)
[ 964.572850][ C0] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
[ 964.572996][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 964.573206][ C0] ? __pfx_vfs_write (fs/read_write.c:660)
[ 964.573391][ C0] ? clockevents_program_event (kernel/time/clockevents.c:326)
[ 964.573588][ C0] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3))
[ 964.573826][ C0] ksys_write (fs/read_write.c:731)
[ 964.573968][ C0] ? __pfx_ksys_write (fs/read_write.c:721)
[ 964.574162][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 964.574346][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  964.574571][    C0] RIP: 0033:0x7f00cf452b77
[ 964.574760][ 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
[  964.575392][    C0] RSP: 002b:00007ffc71fbb358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  964.575672][    C0] RAX: ffffffffffffffda RBX: 00005602ab7c23f0 RCX: 00007f00cf452b77
[  964.575945][    C0] RDX: 0000000000000001 RSI: 00005602ab7c23f0 RDI: 0000000000000001
[  964.576212][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  964.576487][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 00005602ab7ad5e0


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