======================================
| # 113.06 [+0.00] [ 1213.540446] vx10: left promiscuous mode
| # 113.06 [+0.00] [ 1213.541760] br1: port 1(vx10) entered disabled state
| # 113.06 [+0.00] [ 1244.564974] Mirror/redirect action on
| # 113.06 [+0.00] [ 1295.109224] irq 4: nobody cared (try booting with the "irqpoll" option)
# 113.07 [+0.00] [ 1295.109869] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
# 113.07 [+0.00] [ 1295.110232] Call Trace:
# 113.07 [+0.00] [ 1295.110408]  <IRQ>
# 113.07 [+0.00] [ 1295.110502] dump_stack_lvl (lib/dump_stack.c:123) 
# 113.08 [+0.00] [ 1295.110692] __report_bad_irq (kernel/irq/spurious.c:214) 
# 113.08 [+0.00] [ 1295.110874] note_interrupt (kernel/irq/spurious.c:423) 
# 113.08 [+0.00] [ 1295.111053] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 113.08 [+0.00] [ 1295.111227] handle_edge_irq (kernel/irq/chip.c:833) 
# 113.08 [+0.00] [ 1295.111410] __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) 
# 113.08 [+0.00] [ 1295.111595] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14)) 
# 113.08 [+0.00] [ 1295.111767]  </IRQ>
# 113.08 [+0.00] [ 1295.111866]  <TASK>
# 113.08 [+0.00] [ 1295.111957] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 113.09 [+0.00] [ 1295.112127] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 113.09 [+0.00] [ 1295.112357] Code: 10 e8 d1 d9 87 fd 48 89 ef e8 e9 4a 88 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 25 46 7b 58 <74> 0e 5b 5d c3 cc cc cc cc e8 cf 1b ad fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	d1 d9                	rcr    %ecx
   4:	87 fd                	xchg   %edi,%ebp
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 e9 4a 88 fd       	call   0xfffffffffd884af7
   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 25 46 7b 58 	decl   %gs:0x587b4625(%rip)        # 0x587b464f
  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 cf 1b ad fd       	call   0xfffffffffdad1c07
  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 cf 1b ad fd       	call   0xfffffffffdad1bdd
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
# 113.09 [+0.01] [ 1295.112968] RSP: 0018:ffffc9000162faa0 EFLAGS: 00000286
# 113.10 [+0.00] [ 1295.113186] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff557e6f1
# 113.10 [+0.00] [ 1295.113445] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa78882f1
# 113.10 [+0.00] [ 1295.113708] RBP: ffffffffab4b7420 R08: 0000000000000001 R09: fffffbfff55797d0
# 113.10 [+0.00] [ 1295.113963] R10: ffffffffaabcbe87 R11: 0000000000000000 R12: 00000000ffffffff
# 113.11 [+0.00] [ 1295.114225] R13: 0000000000000001 R14: ffffffffab4b7528 R15: 00000000ffffffff
# 113.11 [+0.00] [ 1295.114505] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
# 113.11 [+0.00] [ 1295.114733] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
# 113.11 [+0.00] [ 1295.114883] process_output_block (drivers/tty/n_tty.c:574) 
# 113.11 [+0.00] [ 1295.115066] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
# 113.11 [+0.00] [ 1295.115283] n_tty_write (drivers/tty/n_tty.c:2390) 
# 113.11 [+0.00] [ 1295.115460] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360) 
# 113.12 [+0.00] [ 1295.115632] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
# 113.12 [+0.00] [ 1295.115806] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
# 113.12 [+0.00] [ 1295.115981] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
# 113.12 [+0.00] [ 1295.116151] ? lock_acquire (kernel/locking/lockdep.c:5798) 
# 113.12 [+0.00] [ 1295.116325] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
# 113.12 [+0.00] [ 1295.116504] iterate_tty_write (drivers/tty/tty_io.c:1015) 
# 113.12 [+0.00] [ 1295.116681] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
# 113.13 [+0.00] [ 1295.116863] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) 
# 113.13 [+0.00] [ 1295.117040] vfs_write (fs/read_write.c:590 fs/read_write.c:683) 
# 113.13 [+0.00] [ 1295.117177] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
# 113.13 [+0.00] [ 1295.117358] ? __pfx_vfs_write (fs/read_write.c:664) 
# 113.13 [+0.00] [ 1295.117536] ? clockevents_program_event (kernel/time/clockevents.c:326) 
# 113.13 [+0.00] [ 1295.117718] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
# 113.13 [+0.00] [ 1295.117942] ksys_write (fs/read_write.c:736) 
# 113.14 [+0.00] [ 1295.118078] ? __pfx_ksys_write (fs/read_write.c:726) 
# 113.14 [+0.00] [ 1295.118264] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
# 113.14 [+0.00] [ 1295.118442] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 113.14 [+0.00] [ 1295.118656] RIP: 0033:0x7f7cd0f32957
# 113.14 [+0.00] [ 1295.118831] 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
# 113.15 [+0.01] [ 1295.119442] RSP: 002b:00007fff39bcf7b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 113.15 [+0.00] [ 1295.119707] RAX: ffffffffffffffda RBX: 00005595f28673f0 RCX: 00007f7cd0f32957
# 113.15 [+0.00] [ 1295.119967] RDX: 0000000000000001 RSI: 00005595f28673f0 RDI: 0000000000000001
# 113.15 [+0.00] [ 1295.120220] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 113.16 [+0.00] [ 1295.120473] R10: 0000000000000001 R11: 0000000000000246 R12: 00005595f28525e0
# 113.16 [+0.00] [ 1295.120724] R13: 00005595f28332a0 R14: 0000000000000001 R15: 00005595f28525e0
| xx__-> echo $?
| 0
| xx__-> [ 1244.564974][T10472] Mirror/redirect action on
| [ 1295.109224][    C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1295.109869][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1295.110232][    C3] Call Trace:
[ 1295.110408][    C3]  <IRQ>
[ 1295.110502][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1295.110692][ C3] __report_bad_irq (kernel/irq/spurious.c:214) 
[ 1295.110874][ C3] note_interrupt (kernel/irq/spurious.c:423) 
[ 1295.111053][ C3] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 1295.111227][ C3] handle_edge_irq (kernel/irq/chip.c:833) 
[ 1295.111410][ C3] __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) 
[ 1295.111595][ C3] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14)) 
[ 1295.111767][    C3]  </IRQ>
[ 1295.111866][    C3]  <TASK>
[ 1295.111957][ C3] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[ 1295.112127][ C3] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1295.112357][ C3] Code: 10 e8 d1 d9 87 fd 48 89 ef e8 e9 4a 88 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 25 46 7b 58 <74> 0e 5b 5d c3 cc cc cc cc e8 cf 1b ad fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	d1 d9                	rcr    %ecx
   4:	87 fd                	xchg   %edi,%ebp
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 e9 4a 88 fd       	call   0xfffffffffd884af7
   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 25 46 7b 58 	decl   %gs:0x587b4625(%rip)        # 0x587b464f
  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 cf 1b ad fd       	call   0xfffffffffdad1c07
  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 cf 1b ad fd       	call   0xfffffffffdad1bdd
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[ 1295.112968][    C3] RSP: 0018:ffffc9000162faa0 EFLAGS: 00000286
[ 1295.113186][    C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff557e6f1
[ 1295.113445][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa78882f1
[ 1295.113708][    C3] RBP: ffffffffab4b7420 R08: 0000000000000001 R09: fffffbfff55797d0
[ 1295.113963][    C3] R10: ffffffffaabcbe87 R11: 0000000000000000 R12: 00000000ffffffff
[ 1295.114225][    C3] R13: 0000000000000001 R14: ffffffffab4b7528 R15: 00000000ffffffff
[ 1295.114505][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1295.114733][ C3] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
[ 1295.114883][ C3] process_output_block (drivers/tty/n_tty.c:574) 
[ 1295.115066][ C3] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 1295.115283][ C3] n_tty_write (drivers/tty/n_tty.c:2390) 
[ 1295.115460][ C3] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360) 
[ 1295.115632][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 1295.115806][ C3] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
[ 1295.115981][ C3] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
[ 1295.116151][ C3] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 1295.116325][ C3] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
[ 1295.116504][ C3] iterate_tty_write (drivers/tty/tty_io.c:1015) 
[ 1295.116681][ C3] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
[ 1295.116863][ C3] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) 
[ 1295.117040][ C3] vfs_write (fs/read_write.c:590 fs/read_write.c:683) 
[ 1295.117177][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 1295.117358][ C3] ? __pfx_vfs_write (fs/read_write.c:664) 
[ 1295.117536][ C3] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 1295.117718][ C3] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 1295.117942][ C3] ksys_write (fs/read_write.c:736) 
[ 1295.118078][ C3] ? __pfx_ksys_write (fs/read_write.c:726) 
[ 1295.118264][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 1295.118442][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1295.118656][    C3] RIP: 0033:0x7f7cd0f32957
[ 1295.118831][ C3] 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
[ 1295.119442][    C3] RSP: 002b:00007fff39bcf7b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1295.119707][    C3] RAX: ffffffffffffffda RBX: 00005595f28673f0 RCX: 00007f7cd0f32957
[ 1295.119967][    C3] RDX: 0000000000000001 RSI: 00005595f28673f0 RDI: 0000000000000001
[ 1295.120220][    C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1295.120473][    C3] R10: 0000000000000001 R11: 0000000000000246 R12: 00005595f28525e0


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