======================================
| # 105.64 [+0.00] [ 1163.007821] br1: port 1(vx10) entered disabled state
| # 105.64 [+0.00] [ 1192.209165] Mirror/redirect action on
| # 105.64 [+0.00] [ 1199.442782] tc (8487) used greatest stack depth: 23712 bytes left
| # 105.64 [+0.00] [ 1230.903403] irq 4: nobody cared (try booting with the "irqpoll" option)
# 105.65 [+0.00] [ 1230.904077] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
# 105.65 [+0.00] [ 1230.904480] Call Trace:
# 105.65 [+0.00] [ 1230.904617]  <IRQ>
# 105.65 [+0.00] [ 1230.904708] dump_stack_lvl (lib/dump_stack.c:122) 
# 105.65 [+0.00] [ 1230.904896] __report_bad_irq (kernel/irq/spurious.c:214) 
# 105.65 [+0.00] [ 1230.905064] note_interrupt (kernel/irq/spurious.c:423) 
# 105.66 [+0.00] [ 1230.905237] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 105.66 [+0.00] [ 1230.905408] handle_edge_irq (kernel/irq/chip.c:833) 
# 105.66 [+0.00] [ 1230.905581] __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) 
# 105.66 [+0.00] [ 1230.905768] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14)) 
# 105.66 [+0.00] [ 1230.905939]  </IRQ>
# 105.66 [+0.00] [ 1230.906029]  <TASK>
# 105.66 [+0.00] [ 1230.906115] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 105.66 [+0.00] [ 1230.906289] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 105.67 [+0.00] [ 1230.906532] Code: 10 e8 f1 e9 8c fd 48 89 ef e8 99 5a 8d 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 16 e1 75 <74> 0e 5b 5d c3 cc cc cc cc e8 6f 13 b1 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	f1                   	int1
   3:	e9 8c fd 48 89       	jmp    0xffffffff8948fd94
   8:	ef                   	out    %eax,(%dx)
   9:	e8 99 5a 8d fd       	call   0xfffffffffd8d5aa7
   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 16 e1 75 	decl   %gs:0x75e11625(%rip)        # 0x75e1164f
  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 6f 13 b1 fd       	call   0xfffffffffdb113a7
  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 6f 13 b1 fd       	call   0xfffffffffdb1137d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
# 105.67 [+0.01] [ 1230.907131] RSP: 0018:ffffc900075efab8 EFLAGS: 00000286
# 105.67 [+0.00] [ 1230.907345] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff1ab8207
# 105.68 [+0.00] [ 1230.907613] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8a22b071
# 105.68 [+0.00] [ 1230.907878] RBP: ffffffff8de822a0 R08: 0000000000000001 R09: fffffbfff1ab3318
# 105.68 [+0.00] [ 1230.908138] R10: ffffffff8d5998c7 R11: 0000000000000000 R12: ffffffff8de823a8
# 105.68 [+0.00] [ 1230.908389] R13: ffff88800497e400 R14: ffffffff8de822a0 R15: 0000000000000286
# 105.68 [+0.00] [ 1230.908658] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
# 105.69 [+0.00] [ 1230.908880] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:634) 
# 105.69 [+0.00] [ 1230.909012] process_output_block (drivers/tty/n_tty.c:574) 
# 105.69 [+0.00] [ 1230.909191] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
# 105.69 [+0.00] [ 1230.909404] n_tty_write (drivers/tty/n_tty.c:2390) 
# 105.69 [+0.00] [ 1230.909581] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360) 
# 105.69 [+0.00] [ 1230.909756] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
# 105.69 [+0.00] [ 1230.909932] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
# 105.70 [+0.00] [ 1230.910107] ? iterate_tty_write (drivers/tty/tty_io.c:954 drivers/tty/tty_io.c:973) 
# 105.70 [+0.00] [ 1230.910278] ? lock_acquire (kernel/locking/lockdep.c:5732) 
# 105.70 [+0.00] [ 1230.910449] ? iterate_tty_write (drivers/tty/tty_io.c:954 drivers/tty/tty_io.c:973) 
# 105.70 [+0.00] [ 1230.910634] iterate_tty_write (drivers/tty/tty_io.c:1021) 
# 105.70 [+0.00] [ 1230.910816] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
# 105.70 [+0.00] [ 1230.910992] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1096) 
# 105.70 [+0.00] [ 1230.911164] vfs_write (fs/read_write.c:497 fs/read_write.c:590) 
# 105.71 [+0.00] [ 1230.911295] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
# 105.71 [+0.00] [ 1230.911460] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
# 105.71 [+0.00] [ 1230.911635] ? __might_fault (mm/memory.c:6404 mm/memory.c:6397) 
# 105.71 [+0.00] [ 1230.911812] ? lock_acquire (kernel/locking/lockdep.c:5732) 
# 105.71 [+0.00] [ 1230.911980] ? __pfx_vfs_write (fs/read_write.c:571) 
# 105.71 [+0.00] [ 1230.912151] ? __might_fault (mm/memory.c:6404 mm/memory.c:6397) 
# 105.71 [+0.00] [ 1230.912322] ? __rseq_handle_notify_resume (kernel/rseq.c:316) 
# 105.71 [+0.00] [ 1230.912532] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1141) 
# 105.72 [+0.00] [ 1230.912703] ksys_write (fs/read_write.c:643) 
# 105.72 [+0.00] [ 1230.912840] ? __pfx_ksys_write (fs/read_write.c:633) 
# 105.72 [+0.00] [ 1230.913016] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
# 105.72 [+0.00] [ 1230.913190] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 105.72 [+0.00] [ 1230.913402] RIP: 0033:0x7f6fcb53d957
# 105.72 [+0.00] [ 1230.913578] 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
# 105.73 [+0.01] [ 1230.914170] RSP: 002b:00007ffffe6bb058 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 105.73 [+0.00] [ 1230.914438] RAX: ffffffffffffffda RBX: 0000561bd3b4f2b0 RCX: 00007f6fcb53d957
# 105.73 [+0.00] [ 1230.914693] RDX: 0000000000000001 RSI: 0000561bd3b4f2b0 RDI: 0000000000000001
# 105.74 [+0.00] [ 1230.914961] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 105.74 [+0.00] [ 1230.915199] R10: 0000000000000001 R11: 0000000000000246 R12: 0000561bd3b3a5e0
# 105.74 [+0.00] [ 1230.915441] R13: 0000561bd3b1b2a0 R14: 0000000000000001 R15: 0000561bd3b3a5e0
| 0
| xx__-> [ 1192.209165][ T8408] Mirror/redirect action on
| [ 1199.442782][ T8487] tc (8487) used greatest stack depth: 23712 bytes left
| [ 1230.903403][    C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1230.904077][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1230.904480][    C3] Call Trace:
[ 1230.904617][    C3]  <IRQ>
[ 1230.904708][ C3] dump_stack_lvl (lib/dump_stack.c:122) 
[ 1230.904896][ C3] __report_bad_irq (kernel/irq/spurious.c:214) 
[ 1230.905064][ C3] note_interrupt (kernel/irq/spurious.c:423) 
[ 1230.905237][ C3] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 1230.905408][ C3] handle_edge_irq (kernel/irq/chip.c:833) 
[ 1230.905581][ 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) 
[ 1230.905768][ C3] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14)) 
[ 1230.905939][    C3]  </IRQ>
[ 1230.906029][    C3]  <TASK>
[ 1230.906115][ C3] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[ 1230.906289][ C3] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1230.906532][ C3] Code: 10 e8 f1 e9 8c fd 48 89 ef e8 99 5a 8d 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 16 e1 75 <74> 0e 5b 5d c3 cc cc cc cc e8 6f 13 b1 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	f1                   	int1
   3:	e9 8c fd 48 89       	jmp    0xffffffff8948fd94
   8:	ef                   	out    %eax,(%dx)
   9:	e8 99 5a 8d fd       	call   0xfffffffffd8d5aa7
   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 16 e1 75 	decl   %gs:0x75e11625(%rip)        # 0x75e1164f
  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 6f 13 b1 fd       	call   0xfffffffffdb113a7
  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 6f 13 b1 fd       	call   0xfffffffffdb1137d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[ 1230.907131][    C3] RSP: 0018:ffffc900075efab8 EFLAGS: 00000286
[ 1230.907345][    C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff1ab8207
[ 1230.907613][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8a22b071
[ 1230.907878][    C3] RBP: ffffffff8de822a0 R08: 0000000000000001 R09: fffffbfff1ab3318
[ 1230.908138][    C3] R10: ffffffff8d5998c7 R11: 0000000000000000 R12: ffffffff8de823a8
[ 1230.908389][    C3] R13: ffff88800497e400 R14: ffffffff8de822a0 R15: 0000000000000286
[ 1230.908658][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1230.908880][ C3] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:634) 
[ 1230.909012][ C3] process_output_block (drivers/tty/n_tty.c:574) 
[ 1230.909191][ C3] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 1230.909404][ C3] n_tty_write (drivers/tty/n_tty.c:2390) 
[ 1230.909581][ C3] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360) 
[ 1230.909756][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 1230.909932][ C3] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
[ 1230.910107][ C3] ? iterate_tty_write (drivers/tty/tty_io.c:954 drivers/tty/tty_io.c:973) 
[ 1230.910278][ C3] ? lock_acquire (kernel/locking/lockdep.c:5732) 
[ 1230.910449][ C3] ? iterate_tty_write (drivers/tty/tty_io.c:954 drivers/tty/tty_io.c:973) 
[ 1230.910634][ C3] iterate_tty_write (drivers/tty/tty_io.c:1021) 
[ 1230.910816][ C3] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
[ 1230.910992][ C3] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1096) 
[ 1230.911164][ C3] vfs_write (fs/read_write.c:497 fs/read_write.c:590) 
[ 1230.911295][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 1230.911460][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 1230.911635][ C3] ? __might_fault (mm/memory.c:6404 mm/memory.c:6397) 
[ 1230.911812][ C3] ? lock_acquire (kernel/locking/lockdep.c:5732) 
[ 1230.911980][ C3] ? __pfx_vfs_write (fs/read_write.c:571) 
[ 1230.912151][ C3] ? __might_fault (mm/memory.c:6404 mm/memory.c:6397) 
[ 1230.912322][ C3] ? __rseq_handle_notify_resume (kernel/rseq.c:316) 
[ 1230.912532][ C3] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1141) 
[ 1230.912703][ C3] ksys_write (fs/read_write.c:643) 
[ 1230.912840][ C3] ? __pfx_ksys_write (fs/read_write.c:633) 
[ 1230.913016][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 1230.913190][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1230.913402][    C3] RIP: 0033:0x7f6fcb53d957
[ 1230.913578][ 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
[ 1230.914170][    C3] RSP: 002b:00007ffffe6bb058 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1230.914438][    C3] RAX: ffffffffffffffda RBX: 0000561bd3b4f2b0 RCX: 00007f6fcb53d957
[ 1230.914693][    C3] RDX: 0000000000000001 RSI: 0000561bd3b4f2b0 RDI: 0000000000000001
[ 1230.914961][    C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1230.915199][    C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000561bd3b3a5e0


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