======================================
| # 87.31 [+0.00] [  884.882684] vx10: left promiscuous mode
| # 87.31 [+0.00] [  884.883031] br1: port 1(vx10) entered disabled state
| # 87.31 [+0.00] [  905.453515] Mirror/redirect action on
| # 87.32 [+0.00] [  923.915661] irq 51: nobody cared (try booting with the "irqpoll" option)
# 87.32 [+0.00] [  923.916465] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 87.32 [+0.00] [  923.916697] Call Trace:
# 87.33 [+0.00] [  923.916833]  <IRQ>
# 87.33 [+0.00] [  923.916933] dump_stack_lvl (lib/dump_stack.c:123)
# 87.33 [+0.00] [  923.917127] __report_bad_irq (kernel/irq/spurious.c:214)
# 87.33 [+0.00] [  923.917312] note_interrupt (kernel/irq/spurious.c:423)
# 87.33 [+0.00] [  923.917482] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210)
# 87.33 [+0.00] [  923.917685] handle_edge_irq (kernel/irq/chip.c:833)
# 87.33 [+0.00] [  923.917864] __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)
# 87.34 [+0.00] [  923.918037] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14))
# 87.34 [+0.00] [  923.918209]  </IRQ>
# 87.34 [+0.00] [  923.918303]  <TASK>
# 87.34 [+0.00] [  923.918399] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
# 87.34 [+0.00] [  923.918578] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
# 87.34 [+0.00] [ 923.918814] Code: 10 e8 51 53 8c fd 48 89 ef e8 09 c8 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 f5 55 34 51 <74> 0e 5b 5d c3 cc cc cc cc e8 8f 1f b2 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	51                   	push   %rcx
   3:	53                   	push   %rbx
   4:	8c fd                	mov    %?,%ebp
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 09 c8 8c fd       	call   0xfffffffffd8cc817
   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 f5 55 34 51 	decl   %gs:0x513455f5(%rip)        # 0x5134561f
  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 8f 1f b2 fd       	call   0xfffffffffdb21fc7
  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 8f 1f b2 fd       	call   0xfffffffffdb21f9d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
# 87.35 [+0.01] [  923.919571] RSP: 0018:ffffc9000b3e7aa0 EFLAGS: 00000286
# 87.35 [+0.00] [  923.919845] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff6404167
# 87.36 [+0.00] [  923.920164] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffaecf6f21
# 87.36 [+0.00] [  923.920477] RBP: ffffffffb28e7840 R08: 0000000000000001 R09: fffffbfff63ff7ef
# 87.36 [+0.00] [  923.920789] R10: ffffffffb1ffbf7f R11: ffff8880092d8040 R12: 00000000ffffffff
# 87.37 [+0.00] [  923.921097] R13: 0000000000000001 R14: ffffffffb28e7948 R15: 00000000ffffffff
# 87.37 [+0.00] [  923.921424] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
# 87.37 [+0.00] [  923.921714] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636)
# 87.37 [+0.00] [  923.921854] process_output_block (drivers/tty/n_tty.c:574)
# 87.38 [+0.00] [  923.922030] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
# 87.38 [+0.00] [  923.922242] n_tty_write (drivers/tty/n_tty.c:2390)
# 87.38 [+0.00] [  923.922416] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360)
# 87.38 [+0.00] [  923.922586] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
# 87.38 [+0.00] [  923.922779] ? __pfx_woken_wake_function (kernel/sched/wait.c:439)
# 87.39 [+0.00] [  923.922950] ? lock_acquire (kernel/locking/lockdep.c:5822)
# 87.39 [+0.00] [  923.923115] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967)
# 87.39 [+0.00] [  923.923291] iterate_tty_write (drivers/tty/tty_io.c:1015)
# 87.39 [+0.00] [  923.923470] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
# 87.39 [+0.00] [  923.923644] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090)
# 87.39 [+0.00] [  923.923814] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
# 87.39 [+0.00] [  923.923961] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
# 87.39 [+0.00] [  923.924141] ? __pfx_vfs_write (fs/read_write.c:660)
# 87.39 [+0.00] [  923.924311] ? clockevents_program_event (kernel/time/clockevents.c:326)
# 87.40 [+0.00] [  923.924490] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3))
# 87.40 [+0.00] [  923.924699] ksys_write (fs/read_write.c:731)
# 87.40 [+0.00] [  923.924830] ? __pfx_ksys_write (fs/read_write.c:721)
# 87.40 [+0.00] [  923.925004] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
# 87.40 [+0.00] [  923.925178] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
# 87.40 [+0.00] [  923.925392] RIP: 0033:0x7fb8f5279b77
# 87.40 [+0.00] [ 923.925570] 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
# 87.41 [+0.00] [  923.926194] RSP: 002b:00007ffdd0360028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 87.41 [+0.00] [  923.926452] RAX: ffffffffffffffda RBX: 0000558c3aaad3f0 RCX: 00007fb8f5279b77
# 87.41 [+0.00] [  923.926712] RDX: 0000000000000001 RSI: 0000558c3aaad3f0 RDI: 0000000000000001
# 87.41 [+0.00] [  923.926959] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 87.42 [+0.00] [  923.927206] R10: 0000000000000001 R11: 0000000000000246 R12: 0000558c3aa985e0
# 87.42 [+0.00] [  923.927454] R13: 0000558c3aa792a0 R14: 0000000000000001 R15: 0000558c3aa985e0
| xx__-> echo $?
| 0
| xx__-> [  905.453515][T10788] Mirror/redirect action on
| [  923.915661][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[  923.916465][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  923.916697][    C0] Call Trace:
[  923.916833][    C0]  <IRQ>
[ 923.916933][ C0] dump_stack_lvl (lib/dump_stack.c:123)
[ 923.917127][ C0] __report_bad_irq (kernel/irq/spurious.c:214)
[ 923.917312][ C0] note_interrupt (kernel/irq/spurious.c:423)
[ 923.917482][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210)
[ 923.917685][ C0] handle_edge_irq (kernel/irq/chip.c:833)
[ 923.917864][ 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)
[ 923.918037][ C0] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14))
[  923.918209][    C0]  </IRQ>
[  923.918303][    C0]  <TASK>
[ 923.918399][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
[ 923.918578][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[ 923.918814][ C0] Code: 10 e8 51 53 8c fd 48 89 ef e8 09 c8 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 f5 55 34 51 <74> 0e 5b 5d c3 cc cc cc cc e8 8f 1f b2 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	51                   	push   %rcx
   3:	53                   	push   %rbx
   4:	8c fd                	mov    %?,%ebp
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 09 c8 8c fd       	call   0xfffffffffd8cc817
   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 f5 55 34 51 	decl   %gs:0x513455f5(%rip)        # 0x5134561f
  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 8f 1f b2 fd       	call   0xfffffffffdb21fc7
  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 8f 1f b2 fd       	call   0xfffffffffdb21f9d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[  923.919571][    C0] RSP: 0018:ffffc9000b3e7aa0 EFLAGS: 00000286
[  923.919845][    C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff6404167
[  923.920164][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffaecf6f21
[  923.920477][    C0] RBP: ffffffffb28e7840 R08: 0000000000000001 R09: fffffbfff63ff7ef
[  923.920789][    C0] R10: ffffffffb1ffbf7f R11: ffff8880092d8040 R12: 00000000ffffffff
[  923.921097][    C0] R13: 0000000000000001 R14: ffffffffb28e7948 R15: 00000000ffffffff
[ 923.921424][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 923.921714][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636)
[ 923.921854][ C0] process_output_block (drivers/tty/n_tty.c:574)
[ 923.922030][ C0] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 923.922242][ C0] n_tty_write (drivers/tty/n_tty.c:2390)
[ 923.922416][ C0] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360)
[ 923.922586][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 923.922779][ C0] ? __pfx_woken_wake_function (kernel/sched/wait.c:439)
[ 923.922950][ C0] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 923.923115][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967)
[ 923.923291][ C0] iterate_tty_write (drivers/tty/tty_io.c:1015)
[ 923.923470][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
[ 923.923644][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090)
[ 923.923814][ C0] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
[ 923.923961][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 923.924141][ C0] ? __pfx_vfs_write (fs/read_write.c:660)
[ 923.924311][ C0] ? clockevents_program_event (kernel/time/clockevents.c:326)
[ 923.924490][ C0] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3))
[ 923.924699][ C0] ksys_write (fs/read_write.c:731)
[ 923.924830][ C0] ? __pfx_ksys_write (fs/read_write.c:721)
[ 923.925004][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 923.925178][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  923.925392][    C0] RIP: 0033:0x7fb8f5279b77
[ 923.925570][ 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
[  923.926194][    C0] RSP: 002b:00007ffdd0360028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  923.926452][    C0] RAX: ffffffffffffffda RBX: 0000558c3aaad3f0 RCX: 00007fb8f5279b77
[  923.926712][    C0] RDX: 0000000000000001 RSI: 0000558c3aaad3f0 RDI: 0000000000000001
[  923.926959][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  923.927206][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 0000558c3aa985e0


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