======================================
| # 110.75 [+0.00] [ 1018.972830] [T21090] vx100: left promiscuous mode
| # 110.75 [+0.00] [ 1018.973093] [T21090] br1: port 1(vx100) entered disabled state
| # 110.75 [+0.00] [ 1053.260456] [T21703] Mirror/redirect action on
| # 110.75 [+0.00] [ 1072.418604] [    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
# 110.76 [+0.00] [ 1072.418935] [    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 110.77 [+0.00] [ 1072.418936] [    C0] Call Trace:
# 110.77 [+0.00] [ 1072.418938] [    C0]  <IRQ>
# 110.77 [+0.00] [ 1072.418939] [    C0]  dump_stack_lvl (lib/dump_stack.c:122)
# 110.77 [+0.00] [ 1072.418948] [    C0]  __report_bad_irq (kernel/irq/spurious.c:170)
# 110.77 [+0.00] [ 1072.418953] [    C0]  note_interrupt.cold (kernel/irq/spurious.c:372)
# 110.78 [+0.00] [ 1072.418955] [    C0]  ? serial8250_get_port (drivers/tty/serial/8250/8250_core.c:74)
# 110.78 [+0.00] [ 1072.418959] [    C0]  ? poll_spurious_irqs (kernel/irq/spurious.c:223)
# 110.78 [+0.00] [ 1072.418965] [    C0]  handle_irq_event (kernel/irq/handle.c:253 kernel/irq/handle.c:265)
# 110.78 [+0.00] [ 1072.418968] [    C0]  handle_edge_irq (kernel/irq/chip.c:857)
# 110.79 [+0.00] [ 1072.418973] [    C0]  __common_interrupt (./include/asm-generic/irq_regs.h:28 arch/x86/kernel/irq.c:329)
# 110.79 [+0.00] [ 1072.418977] [    C0]  common_interrupt (arch/x86/kernel/irq.c:319 (discriminator 49))
# 110.79 [+0.00] [ 1072.418984] [    C0]  </IRQ>
# 110.79 [+0.00] [ 1072.418985] [    C0]  <TASK>
# 110.80 [+0.00] [ 1072.418986] [    C0]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688)
# 110.80 [+0.00] [ 1072.418989] [    C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
# 110.80 [+0.00] [ 1072.418992] [    C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 51 87 df fd 48 89 df e8 b9 d8 df fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 f0 2e d3 fd 65 8b 05 c9 f1 05 02 85 c0 74 12 5b
All code
========
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 51 87 df fd       	call   0xfffffffffddf8764
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 b9 d8 df fd       	call   0xfffffffffddfd8d4
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 1f                	jne    0x42
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 2f                	jne    0x59
  2a:*	bf 01 00 00 00       	mov    $0x1,%edi		<-- trapping instruction
  2f:	e8 f0 2e d3 fd       	call   0xfffffffffdd32f24
  34:	65 8b 05 c9 f1 05 02 	mov    %gs:0x205f1c9(%rip),%eax        # 0x205f204
  3b:	85 c0                	test   %eax,%eax
  3d:	74 12                	je     0x51
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	bf 01 00 00 00       	mov    $0x1,%edi
   5:	e8 f0 2e d3 fd       	call   0xfffffffffdd32efa
   a:	65 8b 05 c9 f1 05 02 	mov    %gs:0x205f1c9(%rip),%eax        # 0x205f1da
  11:	85 c0                	test   %eax,%eax
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
# 110.81 [+0.01] [ 1072.418994] [    C0] RSP: 0018:ffa0000002207a70 EFLAGS: 00000246
# 110.81 [+0.00] [ 1072.418997] [    C0] RAX: 0000000000000082 RBX: ffffffffb8f8b520 RCX: ffffffffb5eeae73
# 110.82 [+0.00] [ 1072.418999] [    C0] RDX: ff1100000e790040 RSI: ffffffffb67b3844 RDI: ffffffffb626ad00
# 110.82 [+0.00] [ 1072.419000] [    C0] RBP: 0000000000000282 R08: 0000000000000000 R09: 0000000000000001
# 110.83 [+0.00] [ 1072.419000] [    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffffb8f8b628
# 110.83 [+0.00] [ 1072.419001] [    C0] R13: 0000000000000001 R14: ffffffffb8f8b660 R15: ff11000008e28400
# 110.83 [+0.00] [ 1072.419004] [    C0]  ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 ./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
# 110.84 [+0.00] [ 1072.419009] [    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)
# 110.84 [+0.00] [ 1072.419014] [    C0]  process_output_block (drivers/tty/n_tty.c:557)
# 110.84 [+0.00] [ 1072.419019] [    C0]  n_tty_write (drivers/tty/n_tty.c:2367)
# 110.84 [+0.00] [ 1072.419020] [    C0]  ? _copy_from_iter (./arch/x86/include/asm/smap.h:47 ./arch/x86/include/asm/uaccess_64.h:121 ./arch/x86/include/asm/uaccess_64.h:141 lib/iov_iter.c:67 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
# 110.85 [+0.00] [ 1072.419026] [    C0]  ? n_tty_receive_signal_char (drivers/tty/n_tty.c:2337)
# 110.85 [+0.00] [ 1072.419028] [    C0]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1126 (discriminator 1))
# 110.85 [+0.00] [ 1072.419031] [    C0]  ? __init_waitqueue_head (kernel/sched/wait.c:458)
# 110.86 [+0.00] [ 1072.419034] [    C0]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
# 110.86 [+0.00] [ 1072.419037] [    C0]  ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
# 110.86 [+0.00] [ 1072.419041] [    C0]  iterate_tty_write (drivers/tty/tty_io.c:1007)
# 110.86 [+0.00] [ 1072.419044] [    C0]  ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
# 110.87 [+0.00] [ 1072.419047] [    C0]  file_tty_write.isra.0 (drivers/tty/tty_io.c:1081)
# 110.87 [+0.00] [ 1072.419050] [    C0]  ? redirected_tty_write (drivers/tty/tty_io.c:1101)
# 110.87 [+0.00] [ 1072.419051] [    C0]  new_sync_write (fs/read_write.c:594 (discriminator 1))
# 110.87 [+0.00] [ 1072.419055] [    C0]  ? new_sync_read (fs/read_write.c:492 (discriminator 1))
# 110.88 [+0.00] [ 1072.419058] [    C0]  ? new_sync_read (fs/read_write.c:584)
# 110.88 [+0.00] [ 1072.419059] [    C0]  ? generic_atomic_write_valid (fs/read_write.c:482)
# 110.88 [+0.00] [ 1072.419063] [    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
# 110.88 [+0.00] [ 1072.419068] [    C0]  vfs_write (fs/read_write.c:686)
# 110.89 [+0.00] [ 1072.419071] [    C0]  ? vfs_read (fs/read_write.c:572)
# 110.89 [+0.00] [ 1072.419075] [    C0]  ksys_write (fs/read_write.c:739)
# 110.89 [+0.00] [ 1072.419077] [    C0]  ? __ia32_sys_read (fs/read_write.c:728)
# 110.89 [+0.00] [ 1072.419080] [    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
# 110.90 [+0.00] [ 1072.419084] [    C0]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
# 110.90 [+0.00] [ 1072.419087] [    C0]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131)
# 110.90 [+0.00] [ 1072.419088] [    C0] RIP: 0033:0x7f10def5ac5e
# 110.90 [+0.00] [ 1072.419091] [    C0] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
# 110.91 [+0.01] [ 1072.419092] [    C0] RSP: 002b:00007ffe22699a80 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
# 110.92 [+0.00] [ 1072.419094] [    C0] RAX: ffffffffffffffda RBX: 0000562007f57390 RCX: 00007f10def5ac5e
# 110.92 [+0.00] [ 1072.419095] [    C0] RDX: 0000000000000001 RSI: 0000562007f57390 RDI: 0000000000000001
# 110.93 [+0.00] [ 1072.419095] [    C0] RBP: 00007ffe22699a90 R08: 0000000000000000 R09: 0000000000000000
# 110.93 [+0.00] [ 1072.419096] [    C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
# 110.93 [+0.00] [ 1072.419096] [    C0] R13: 0000562007f18010 R14: 0000000000000001 R15: 0000562007f57390
| xx__-> echo $?
| 0
| xx__-> [ 1053.260456][T21703] Mirror/redirect action on
| [ 1072.418604][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 1072.418935][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1072.418936][    C0] Call Trace:
[ 1072.418938][    C0]  <IRQ>
[ 1072.418939][    C0]  dump_stack_lvl (lib/dump_stack.c:122)
[ 1072.418948][    C0]  __report_bad_irq (kernel/irq/spurious.c:170)
[ 1072.418953][    C0]  note_interrupt.cold (kernel/irq/spurious.c:372)
[ 1072.418955][    C0]  ? serial8250_get_port (drivers/tty/serial/8250/8250_core.c:74)
[ 1072.418959][    C0]  ? poll_spurious_irqs (kernel/irq/spurious.c:223)
[ 1072.418965][    C0]  handle_irq_event (kernel/irq/handle.c:253 kernel/irq/handle.c:265)
[ 1072.418968][    C0]  handle_edge_irq (kernel/irq/chip.c:857)
[ 1072.418973][    C0]  __common_interrupt (./include/asm-generic/irq_regs.h:28 arch/x86/kernel/irq.c:329)
[ 1072.418977][    C0]  common_interrupt (arch/x86/kernel/irq.c:319 (discriminator 49))
[ 1072.418984][    C0]  </IRQ>
[ 1072.418985][    C0]  <TASK>
[ 1072.418986][    C0]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688)
[ 1072.418989][    C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[ 1072.418992][    C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 51 87 df fd 48 89 df e8 b9 d8 df fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 f0 2e d3 fd 65 8b 05 c9 f1 05 02 85 c0 74 12 5b
All code
========
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 51 87 df fd       	call   0xfffffffffddf8764
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 b9 d8 df fd       	call   0xfffffffffddfd8d4
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 1f                	jne    0x42
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 2f                	jne    0x59
  2a:*	bf 01 00 00 00       	mov    $0x1,%edi		<-- trapping instruction
  2f:	e8 f0 2e d3 fd       	call   0xfffffffffdd32f24
  34:	65 8b 05 c9 f1 05 02 	mov    %gs:0x205f1c9(%rip),%eax        # 0x205f204
  3b:	85 c0                	test   %eax,%eax
  3d:	74 12                	je     0x51
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	bf 01 00 00 00       	mov    $0x1,%edi
   5:	e8 f0 2e d3 fd       	call   0xfffffffffdd32efa
   a:	65 8b 05 c9 f1 05 02 	mov    %gs:0x205f1c9(%rip),%eax        # 0x205f1da
  11:	85 c0                	test   %eax,%eax
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
[ 1072.418994][    C0] RSP: 0018:ffa0000002207a70 EFLAGS: 00000246
[ 1072.418997][    C0] RAX: 0000000000000082 RBX: ffffffffb8f8b520 RCX: ffffffffb5eeae73
[ 1072.418999][    C0] RDX: ff1100000e790040 RSI: ffffffffb67b3844 RDI: ffffffffb626ad00
[ 1072.419000][    C0] RBP: 0000000000000282 R08: 0000000000000000 R09: 0000000000000001
[ 1072.419000][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffffb8f8b628
[ 1072.419001][    C0] R13: 0000000000000001 R14: ffffffffb8f8b660 R15: ff11000008e28400
[ 1072.419004][    C0]  ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 ./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 1072.419009][    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)
[ 1072.419014][    C0]  process_output_block (drivers/tty/n_tty.c:557)
[ 1072.419019][    C0]  n_tty_write (drivers/tty/n_tty.c:2367)
[ 1072.419020][    C0]  ? _copy_from_iter (./arch/x86/include/asm/smap.h:47 ./arch/x86/include/asm/uaccess_64.h:121 ./arch/x86/include/asm/uaccess_64.h:141 lib/iov_iter.c:67 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[ 1072.419026][    C0]  ? n_tty_receive_signal_char (drivers/tty/n_tty.c:2337)
[ 1072.419028][    C0]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1126 (discriminator 1))
[ 1072.419031][    C0]  ? __init_waitqueue_head (kernel/sched/wait.c:458)
[ 1072.419034][    C0]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1072.419037][    C0]  ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
[ 1072.419041][    C0]  iterate_tty_write (drivers/tty/tty_io.c:1007)
[ 1072.419044][    C0]  ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
[ 1072.419047][    C0]  file_tty_write.isra.0 (drivers/tty/tty_io.c:1081)
[ 1072.419050][    C0]  ? redirected_tty_write (drivers/tty/tty_io.c:1101)
[ 1072.419051][    C0]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1072.419055][    C0]  ? new_sync_read (fs/read_write.c:492 (discriminator 1))
[ 1072.419058][    C0]  ? new_sync_read (fs/read_write.c:584)
[ 1072.419059][    C0]  ? generic_atomic_write_valid (fs/read_write.c:482)
[ 1072.419063][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1072.419068][    C0]  vfs_write (fs/read_write.c:686)
[ 1072.419071][    C0]  ? vfs_read (fs/read_write.c:572)
[ 1072.419075][    C0]  ksys_write (fs/read_write.c:739)
[ 1072.419077][    C0]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1072.419080][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1072.419084][    C0]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1072.419087][    C0]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131)
[ 1072.419088][    C0] RIP: 0033:0x7f10def5ac5e
[ 1072.419091][    C0] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1072.419092][    C0] RSP: 002b:00007ffe22699a80 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1072.419094][    C0] RAX: ffffffffffffffda RBX: 0000562007f57390 RCX: 00007f10def5ac5e
[ 1072.419095][    C0] RDX: 0000000000000001 RSI: 0000562007f57390 RDI: 0000000000000001
[ 1072.419095][    C0] RBP: 00007ffe22699a90 R08: 0000000000000000 R09: 0000000000000000
[ 1072.419096][    C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001


Finger prints:
__report_bad_irq:handle_irq_event:handle_edge_irq:__common_interrupt:common_interrupt