======================================
| # 116.25 [+0.00] [  852.939619] vx1: left promiscuous mode
| # 116.25 [+0.00] [  852.940397] br1: port 1(vx1) entered disabled state
| # 116.25 [+0.00] [ 1077.466759] Mirror/redirect action on
| # 116.25 [+0.00] [ 1141.498211] irq 51: nobody cared (try booting with the "irqpoll" option)
# 116.26 [+0.00] [ 1141.498878] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 116.26 [+0.00] [ 1141.498883] Call Trace:
# 116.26 [+0.00] [ 1141.498888]  <IRQ>
# 116.26 [+0.00] [ 1141.498891]  dump_stack_lvl (lib/dump_stack.c:123)
# 116.26 [+0.00] [ 1141.498922]  __report_bad_irq (kernel/irq/spurious.c:170)
# 116.26 [+0.00] [ 1141.498938]  note_interrupt (kernel/irq/spurious.c:372)
# 116.27 [+0.00] [ 1141.498946]  handle_irq_event (kernel/irq/handle.c:245 kernel/irq/handle.c:257)
# 116.27 [+0.00] [ 1141.498952]  handle_edge_irq (kernel/irq/chip.c:857)
# 116.27 [+0.00] [ 1141.498962]  __common_interrupt (./include/asm-generic/irq_regs.h:28 arch/x86/kernel/irq.c:328)
# 116.27 [+0.00] [ 1141.498979]  common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14))
# 116.27 [+0.00] [ 1141.498985]  </IRQ>
# 116.27 [+0.00] [ 1141.498987]  <TASK>
# 116.27 [+0.00] [ 1141.498990]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688)
# 116.28 [+0.00] [ 1141.499000] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
# 116.28 [+0.00] [ 1141.499018] Code: 74 24 10 e8 e1 48 ff fd 48 89 ef e8 09 98 ff fd 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 9a d0 f3 fd 65 8b 05 b3 bb 07 02 85 c0 74 0a 5b 5d c3 e8 97 5b
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	e1 48                	loope  0x4e
   6:	ff                   	(bad)
   7:	fd                   	std
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 09 98 ff fd       	call   0xfffffffffdff9819
  10:	81 e3 00 02 00 00    	and    $0x200,%ebx
  16:	75 25                	jne    0x3d
  18:	9c                   	pushf
  19:	58                   	pop    %rax
  1a:	f6 c4 02             	test   $0x2,%ah
  1d:	75 2d                	jne    0x4c
  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 9a d0 f3 fd       	call   0xfffffffffdf3d0c9		<-- trapping instruction
  2f:	65 8b 05 b3 bb 07 02 	mov    %gs:0x207bbb3(%rip),%eax        # 0x207bbe9
  36:	85 c0                	test   %eax,%eax
  38:	74 0a                	je     0x44
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	c3                   	ret
  3d:	e8                   	.byte 0xe8
  3e:	97                   	xchg   %eax,%edi
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	e8 9a d0 f3 fd       	call   0xfffffffffdf3d09f
   5:	65 8b 05 b3 bb 07 02 	mov    %gs:0x207bbb3(%rip),%eax        # 0x207bbbf
   c:	85 c0                	test   %eax,%eax
   e:	74 0a                	je     0x1a
  10:	5b                   	pop    %rbx
  11:	5d                   	pop    %rbp
  12:	c3                   	ret
  13:	e8                   	.byte 0xe8
  14:	97                   	xchg   %eax,%edi
  15:	5b                   	pop    %rbx
# 116.28 [+0.01] [ 1141.499021] RSP: 0018:ffffc9000a197a88 EFLAGS: 00000206
# 116.29 [+0.00] [ 1141.499029] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000040
# 116.29 [+0.00] [ 1141.499031] RDX: 0000000000000000 RSI: ffffffffbc38688d RDI: 0000000000000001
# 116.29 [+0.00] [ 1141.499033] RBP: ffffffffbec6d560 R08: 0000000000000001 R09: 0000000000000001
# 116.30 [+0.00] [ 1141.499035] R10: ffffffffbd223e57 R11: ffff888005fc8970 R12: 00000000ffffffff
# 116.30 [+0.00] [ 1141.499037] R13: 0000000000000001 R14: ffffffffbec6d668 R15: 00000000ffffffff
# 116.30 [+0.00] [ 1141.499053]  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)
# 116.30 [+0.00] [ 1141.499071]  process_output_block (drivers/tty/n_tty.c:561)
# 116.30 [+0.00] [ 1141.499083]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
# 116.31 [+0.00] [ 1141.499090]  n_tty_write (drivers/tty/n_tty.c:2378)
# 116.31 [+0.00] [ 1141.499093]  ? _copy_from_iter (./arch/x86/include/asm/uaccess_64.h:126 ./arch/x86/include/asm/uaccess_64.h:141 lib/iov_iter.c:55 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:249 lib/iov_iter.c:260)
# 116.31 [+0.00] [ 1141.499111]  ? n_tty_receive_signal_char (drivers/tty/n_tty.c:2348)
# 116.31 [+0.00] [ 1141.499118]  ? __init_waitqueue_head (kernel/sched/wait.c:458)
# 116.31 [+0.00] [ 1141.499128]  ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831)
# 116.32 [+0.00] [ 1141.499135]  ? iterate_tty_write (drivers/tty/tty_io.c:939 drivers/tty/tty_io.c:958)
# 116.32 [+0.00] [ 1141.499145]  iterate_tty_write (drivers/tty/tty_io.c:1007)
# 116.32 [+0.00] [ 1141.499151]  ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
# 116.32 [+0.00] [ 1141.499159]  file_tty_write.constprop.0 (drivers/tty/tty_io.c:1081)
# 116.32 [+0.00] [ 1141.499166]  vfs_write (fs/read_write.c:594 fs/read_write.c:686)
# 116.32 [+0.00] [ 1141.499177]  ? kernel_write (fs/read_write.c:667)
# 116.33 [+0.00] [ 1141.499183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
# 116.33 [+0.00] [ 1141.499193]  ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21))
# 116.33 [+0.00] [ 1141.499208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
# 116.33 [+0.00] [ 1141.499212]  ? irqentry_exit (kernel/entry/common.c:215)
# 116.33 [+0.00] [ 1141.499221]  ksys_write (fs/read_write.c:738)
# 116.33 [+0.00] [ 1141.499225]  ? __ia32_sys_read (fs/read_write.c:728)
# 116.34 [+0.00] [ 1141.499237]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
# 116.34 [+0.00] [ 1141.499244]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
# 116.34 [+0.00] [ 1141.499247] RIP: 0033:0x7f35654fa257
# 116.34 [+0.00] [ 1141.499252] 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
# 116.35 [+0.01] [ 1141.499255] RSP: 002b:00007ffda4014158 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 116.35 [+0.00] [ 1141.499258] RAX: ffffffffffffffda RBX: 000055f10d520420 RCX: 00007f35654fa257
# 116.35 [+0.00] [ 1141.499260] RDX: 0000000000000001 RSI: 000055f10d520420 RDI: 0000000000000001
# 116.36 [+0.00] [ 1141.499262] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 116.36 [+0.00] [ 1141.499263] R10: 0000000000000001 R11: 0000000000000246 R12: 000055f10d50b600
# 116.36 [+0.00] [ 1141.499265] R13: 000055f10d4ec2a0 R14: 0000000000000001 R15: 000055f10d50b600
| xx__-> echo $?
| 0
| xx__-> [ 1077.466759][ T7843] Mirror/redirect action on
| [ 1141.498211][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 1141.498878][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1141.498883][    C0] Call Trace:
[ 1141.498888][    C0]  <IRQ>
[ 1141.498891][    C0]  dump_stack_lvl (lib/dump_stack.c:123)
[ 1141.498922][    C0]  __report_bad_irq (kernel/irq/spurious.c:170)
[ 1141.498938][    C0]  note_interrupt (kernel/irq/spurious.c:372)
[ 1141.498946][    C0]  handle_irq_event (kernel/irq/handle.c:245 kernel/irq/handle.c:257)
[ 1141.498952][    C0]  handle_edge_irq (kernel/irq/chip.c:857)
[ 1141.498962][    C0]  __common_interrupt (./include/asm-generic/irq_regs.h:28 arch/x86/kernel/irq.c:328)
[ 1141.498979][    C0]  common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14))
[ 1141.498985][    C0]  </IRQ>
[ 1141.498987][    C0]  <TASK>
[ 1141.498990][    C0]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688)
[ 1141.499000][    C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[ 1141.499018][    C0] Code: 74 24 10 e8 e1 48 ff fd 48 89 ef e8 09 98 ff fd 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 9a d0 f3 fd 65 8b 05 b3 bb 07 02 85 c0 74 0a 5b 5d c3 e8 97 5b
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	e1 48                	loope  0x4e
   6:	ff                   	(bad)
   7:	fd                   	std
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 09 98 ff fd       	call   0xfffffffffdff9819
  10:	81 e3 00 02 00 00    	and    $0x200,%ebx
  16:	75 25                	jne    0x3d
  18:	9c                   	pushf
  19:	58                   	pop    %rax
  1a:	f6 c4 02             	test   $0x2,%ah
  1d:	75 2d                	jne    0x4c
  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 9a d0 f3 fd       	call   0xfffffffffdf3d0c9		<-- trapping instruction
  2f:	65 8b 05 b3 bb 07 02 	mov    %gs:0x207bbb3(%rip),%eax        # 0x207bbe9
  36:	85 c0                	test   %eax,%eax
  38:	74 0a                	je     0x44
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	c3                   	ret
  3d:	e8                   	.byte 0xe8
  3e:	97                   	xchg   %eax,%edi
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	e8 9a d0 f3 fd       	call   0xfffffffffdf3d09f
   5:	65 8b 05 b3 bb 07 02 	mov    %gs:0x207bbb3(%rip),%eax        # 0x207bbbf
   c:	85 c0                	test   %eax,%eax
   e:	74 0a                	je     0x1a
  10:	5b                   	pop    %rbx
  11:	5d                   	pop    %rbp
  12:	c3                   	ret
  13:	e8                   	.byte 0xe8
  14:	97                   	xchg   %eax,%edi
  15:	5b                   	pop    %rbx
[ 1141.499021][    C0] RSP: 0018:ffffc9000a197a88 EFLAGS: 00000206
[ 1141.499029][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000040
[ 1141.499031][    C0] RDX: 0000000000000000 RSI: ffffffffbc38688d RDI: 0000000000000001
[ 1141.499033][    C0] RBP: ffffffffbec6d560 R08: 0000000000000001 R09: 0000000000000001
[ 1141.499035][    C0] R10: ffffffffbd223e57 R11: ffff888005fc8970 R12: 00000000ffffffff
[ 1141.499037][    C0] R13: 0000000000000001 R14: ffffffffbec6d668 R15: 00000000ffffffff
[ 1141.499053][    C0]  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)
[ 1141.499071][    C0]  process_output_block (drivers/tty/n_tty.c:561)
[ 1141.499083][    C0]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 1141.499090][    C0]  n_tty_write (drivers/tty/n_tty.c:2378)
[ 1141.499093][    C0]  ? _copy_from_iter (./arch/x86/include/asm/uaccess_64.h:126 ./arch/x86/include/asm/uaccess_64.h:141 lib/iov_iter.c:55 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:249 lib/iov_iter.c:260)
[ 1141.499111][    C0]  ? n_tty_receive_signal_char (drivers/tty/n_tty.c:2348)
[ 1141.499118][    C0]  ? __init_waitqueue_head (kernel/sched/wait.c:458)
[ 1141.499128][    C0]  ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831)
[ 1141.499135][    C0]  ? iterate_tty_write (drivers/tty/tty_io.c:939 drivers/tty/tty_io.c:958)
[ 1141.499145][    C0]  iterate_tty_write (drivers/tty/tty_io.c:1007)
[ 1141.499151][    C0]  ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
[ 1141.499159][    C0]  file_tty_write.constprop.0 (drivers/tty/tty_io.c:1081)
[ 1141.499166][    C0]  vfs_write (fs/read_write.c:594 fs/read_write.c:686)
[ 1141.499177][    C0]  ? kernel_write (fs/read_write.c:667)
[ 1141.499183][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[ 1141.499193][    C0]  ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21))
[ 1141.499208][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[ 1141.499212][    C0]  ? irqentry_exit (kernel/entry/common.c:215)
[ 1141.499221][    C0]  ksys_write (fs/read_write.c:738)
[ 1141.499225][    C0]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1141.499237][    C0]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 1141.499244][    C0]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1141.499247][    C0] RIP: 0033:0x7f35654fa257
[ 1141.499252][    C0] 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
[ 1141.499255][    C0] RSP: 002b:00007ffda4014158 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1141.499258][    C0] RAX: ffffffffffffffda RBX: 000055f10d520420 RCX: 00007f35654fa257
[ 1141.499260][    C0] RDX: 0000000000000001 RSI: 000055f10d520420 RDI: 0000000000000001
[ 1141.499262][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1141.499263][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 000055f10d50b600


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