======================================
| # 76.84 [+0.00] [ 1438.581886] vx10: left promiscuous mode
| # 76.84 [+0.00] [ 1438.582406] br1: port 1(vx10) entered disabled state
| # 76.84 [+0.00] [ 1468.442510] Mirror/redirect action on
| # 76.84 [+0.00] [ 1487.588331] irq 51: nobody cared (try booting with the "irqpoll" option)
# 76.84 [+0.00] [ 1487.588874] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 76.85 [+0.00] [ 1487.588876] Call Trace:
# 76.85 [+0.00] [ 1487.588879]  <IRQ>
# 76.85 [+0.00] [ 1487.588881] dump_stack_lvl (lib/dump_stack.c:123) 
# 76.85 [+0.00] [ 1487.588892] __report_bad_irq (kernel/irq/spurious.c:170) 
# 76.85 [+0.00] [ 1487.588899] note_interrupt (kernel/irq/spurious.c:372) 
# 76.85 [+0.00] [ 1487.588907] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 76.85 [+0.00] [ 1487.588913] handle_edge_irq (kernel/irq/chip.c:857) 
# 76.85 [+0.00] [ 1487.588923] __common_interrupt (./include/asm-generic/irq_regs.h:28 arch/x86/kernel/irq.c:328) 
# 76.85 [+0.00] [ 1487.588930] common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14)) 
# 76.85 [+0.00] [ 1487.588934]  </IRQ>
# 76.85 [+0.00] [ 1487.588936]  <TASK>
# 76.85 [+0.00] [ 1487.588939] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 76.86 [+0.00] [ 1487.588943] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 76.86 [+0.00] [ 1487.588950] Code: 74 24 10 e8 61 8b 03 fe 48 89 ef e8 89 da 03 fe 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> 4a 10 f8 fd 65 8b 05 a3 5e 0b 02 85 c0 74 0a 5b 5d c3 e8 07 90
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	61                   	(bad)
   5:	8b 03                	mov    (%rbx),%eax
   7:	fe 48 89             	decb   -0x77(%rax)
   a:	ef                   	out    %eax,(%dx)
   b:	e8 89 da 03 fe       	call   0xfffffffffe03da99
  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 4a 10 f8 fd       	call   0xfffffffffdf81079		<-- trapping instruction
  2f:	65 8b 05 a3 5e 0b 02 	mov    %gs:0x20b5ea3(%rip),%eax        # 0x20b5ed9
  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:	07                   	(bad)
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e8 4a 10 f8 fd       	call   0xfffffffffdf8104f
   5:	65 8b 05 a3 5e 0b 02 	mov    %gs:0x20b5ea3(%rip),%eax        # 0x20b5eaf
   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:	07                   	(bad)
  15:	90                   	nop
# 76.86 [+0.00] [ 1487.588952] RSP: 0018:ffffc90002c8fa98 EFLAGS: 00000206
# 76.86 [+0.00] [ 1487.588956] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000040
# 76.86 [+0.00] [ 1487.588958] RDX: 0000000000000000 RSI: ffffffffa6dc5c9b RDI: 0000000000000001
# 76.87 [+0.00] [ 1487.588960] RBP: ffffffffa9649300 R08: 0000000000000001 R09: 0000000000000001
# 76.87 [+0.00] [ 1487.588962] R10: ffffffffa7c11c17 R11: ffff888005758970 R12: 00000000ffffffff
# 76.87 [+0.00] [ 1487.588964] R13: 0000000000000001 R14: ffffffffa9649408 R15: 00000000ffffffff
# 76.87 [+0.00] [ 1487.588980] 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:637) 
# 76.87 [+0.00] [ 1487.588990] process_output_block (drivers/tty/n_tty.c:561) 
# 76.87 [+0.00] [ 1487.588995] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
# 76.87 [+0.00] [ 1487.589002] n_tty_write (drivers/tty/n_tty.c:2378) 
# 76.87 [+0.00] [ 1487.589004] ? _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:300 ./include/linux/iov_iter.h:328 lib/iov_iter.c:249 lib/iov_iter.c:260) 
# 76.88 [+0.00] [ 1487.589015] ? n_tty_receive_signal_char (drivers/tty/n_tty.c:2348) 
# 76.88 [+0.00] [ 1487.589020] ? __init_waitqueue_head (kernel/sched/wait.c:458) 
# 76.88 [+0.00] [ 1487.589027] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
# 76.88 [+0.00] [ 1487.589030] ? iterate_tty_write (drivers/tty/tty_io.c:939 drivers/tty/tty_io.c:958) 
# 76.88 [+0.00] [ 1487.589042] iterate_tty_write (drivers/tty/tty_io.c:1007) 
# 76.88 [+0.00] [ 1487.589048] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
# 76.88 [+0.00] [ 1487.589055] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1081) 
# 76.89 [+0.00] [ 1487.589063] vfs_write (fs/read_write.c:594 fs/read_write.c:686) 
# 76.89 [+0.01] [ 1487.589071] ? kernel_write (fs/read_write.c:667) 
# 76.89 [+0.00] [ 1487.589077] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
# 76.90 [+0.00] [ 1487.589084] ? rseq_update_cpu_node_id (kernel/rseq.c:189 (discriminator 10)) 
# 76.90 [+0.00] [ 1487.589090] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
# 76.90 [+0.00] [ 1487.589101] ksys_write (fs/read_write.c:738) 
# 76.90 [+0.00] [ 1487.589105] ? __ia32_sys_read (fs/read_write.c:728) 
# 76.90 [+0.00] [ 1487.589116] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
# 76.90 [+0.00] [ 1487.589121] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 76.90 [+0.00] [ 1487.589124] RIP: 0033:0x7f741e18d337
# 76.90 [+0.00] [ 1487.589129] 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
# 76.91 [+0.00] [ 1487.589131] RSP: 002b:00007fff8ed983e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 76.91 [+0.00] [ 1487.589134] RAX: ffffffffffffffda RBX: 0000560118cbb2e0 RCX: 00007f741e18d337
# 76.91 [+0.00] [ 1487.589136] RDX: 0000000000000001 RSI: 0000560118cbb2e0 RDI: 0000000000000001
# 76.91 [+0.00] [ 1487.589137] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 76.91 [+0.00] [ 1487.589139] R10: 0000000000000001 R11: 0000000000000246 R12: 0000560118ca6600
# 76.92 [+0.00] [ 1487.589140] R13: 0000560118c872a0 R14: 0000000000000001 R15: 0000560118ca6600
| xx__-> echo $?
| 0
| xx__-> [ 1468.442510][T11834] Mirror/redirect action on
| [ 1487.588331][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 1487.588874][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1487.588876][    C0] Call Trace:
[ 1487.588879][    C0]  <IRQ>
[ 1487.588881][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1487.588892][ C0] __report_bad_irq (kernel/irq/spurious.c:170) 
[ 1487.588899][ C0] note_interrupt (kernel/irq/spurious.c:372) 
[ 1487.588907][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 1487.588913][ C0] handle_edge_irq (kernel/irq/chip.c:857) 
[ 1487.588923][ C0] __common_interrupt (./include/asm-generic/irq_regs.h:28 arch/x86/kernel/irq.c:328) 
[ 1487.588930][ C0] common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14)) 
[ 1487.588934][    C0]  </IRQ>
[ 1487.588936][    C0]  <TASK>
[ 1487.588939][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[ 1487.588943][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1487.588950][ C0] Code: 74 24 10 e8 61 8b 03 fe 48 89 ef e8 89 da 03 fe 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> 4a 10 f8 fd 65 8b 05 a3 5e 0b 02 85 c0 74 0a 5b 5d c3 e8 07 90
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	61                   	(bad)
   5:	8b 03                	mov    (%rbx),%eax
   7:	fe 48 89             	decb   -0x77(%rax)
   a:	ef                   	out    %eax,(%dx)
   b:	e8 89 da 03 fe       	call   0xfffffffffe03da99
  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 4a 10 f8 fd       	call   0xfffffffffdf81079		<-- trapping instruction
  2f:	65 8b 05 a3 5e 0b 02 	mov    %gs:0x20b5ea3(%rip),%eax        # 0x20b5ed9
  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:	07                   	(bad)
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e8 4a 10 f8 fd       	call   0xfffffffffdf8104f
   5:	65 8b 05 a3 5e 0b 02 	mov    %gs:0x20b5ea3(%rip),%eax        # 0x20b5eaf
   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:	07                   	(bad)
  15:	90                   	nop
[ 1487.588952][    C0] RSP: 0018:ffffc90002c8fa98 EFLAGS: 00000206
[ 1487.588956][    C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000040
[ 1487.588958][    C0] RDX: 0000000000000000 RSI: ffffffffa6dc5c9b RDI: 0000000000000001
[ 1487.588960][    C0] RBP: ffffffffa9649300 R08: 0000000000000001 R09: 0000000000000001
[ 1487.588962][    C0] R10: ffffffffa7c11c17 R11: ffff888005758970 R12: 00000000ffffffff
[ 1487.588964][    C0] R13: 0000000000000001 R14: ffffffffa9649408 R15: 00000000ffffffff
[ 1487.588980][ 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:637) 
[ 1487.588990][ C0] process_output_block (drivers/tty/n_tty.c:561) 
[ 1487.588995][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1487.589002][ C0] n_tty_write (drivers/tty/n_tty.c:2378) 
[ 1487.589004][ 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:300 ./include/linux/iov_iter.h:328 lib/iov_iter.c:249 lib/iov_iter.c:260) 
[ 1487.589015][ C0] ? n_tty_receive_signal_char (drivers/tty/n_tty.c:2348) 
[ 1487.589020][ C0] ? __init_waitqueue_head (kernel/sched/wait.c:458) 
[ 1487.589027][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
[ 1487.589030][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:939 drivers/tty/tty_io.c:958) 
[ 1487.589042][ C0] iterate_tty_write (drivers/tty/tty_io.c:1007) 
[ 1487.589048][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
[ 1487.589055][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1081) 
[ 1487.589063][ C0] vfs_write (fs/read_write.c:594 fs/read_write.c:686) 
[ 1487.589071][ C0] ? kernel_write (fs/read_write.c:667) 
[ 1487.589077][ C0] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 1487.589084][ C0] ? rseq_update_cpu_node_id (kernel/rseq.c:189 (discriminator 10)) 
[ 1487.589090][ C0] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 1487.589101][ C0] ksys_write (fs/read_write.c:738) 
[ 1487.589105][ C0] ? __ia32_sys_read (fs/read_write.c:728) 
[ 1487.589116][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1487.589121][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1487.589124][    C0] RIP: 0033:0x7f741e18d337
[ 1487.589129][ 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
[ 1487.589131][    C0] RSP: 002b:00007fff8ed983e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1487.589134][    C0] RAX: ffffffffffffffda RBX: 0000560118cbb2e0 RCX: 00007f741e18d337
[ 1487.589136][    C0] RDX: 0000000000000001 RSI: 0000560118cbb2e0 RDI: 0000000000000001
[ 1487.589137][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1487.589139][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 0000560118ca6600


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