======================================
| # 56.65 [+0.00] [  209.936034] veth1: left promiscuous mode
| # 56.65 [+0.00] [  209.936071] br1: port 2(veth1) entered disabled state
| # 56.65 [+0.00] [  386.413428] Mirror/redirect action on
| # 56.65 [+0.00] [  397.085814] irq 4: nobody cared (try booting with the "irqpoll" option)
# 56.65 [+0.00] [  397.085974] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
# 56.66 [+0.00] [  397.086039] Call Trace:
# 56.66 [+0.00] [  397.086062]  <IRQ>
# 56.66 [+0.00] [  397.086083] dump_stack_lvl (lib/dump_stack.c:123) 
# 56.66 [+0.00] [  397.086117] __report_bad_irq (kernel/irq/spurious.c:214) 
# 56.66 [+0.00] [  397.086146] note_interrupt (kernel/irq/spurious.c:423) 
# 56.66 [+0.00] [  397.086170] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 56.66 [+0.00] [  397.086196] handle_edge_irq (kernel/irq/chip.c:833) 
# 56.66 [+0.00] [  397.086221] __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) 
# 56.66 [+0.00] [  397.086247] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14)) 
# 56.66 [+0.00] [  397.086275]  </IRQ>
# 56.66 [+0.00] [  397.086291]  <TASK>
# 56.66 [+0.00] [  397.086304] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 56.66 [+0.00] [  397.086334] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 56.66 [+0.00] [ 397.086368] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d 0c 6b e8 61 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
All code
========
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	f3 0f 1e fa          	endbr64
  12:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  17:	c6 07 00             	movb   $0x0,(%rdi)
  1a:	f7 c6 00 02 00 00    	test   $0x200,%esi
  20:	74 01                	je     0x23
  22:	fb                   	sti
  23:	65 ff 0d 0c 6b e8 61 	decl   %gs:0x61e86b0c(%rip)        # 0x61e86b36
  2a:*	74 05                	je     0x31		<-- trapping instruction
  2c:	c3                   	ret
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	cc                   	int3
  31:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  36:	c3                   	ret
  37:	cc                   	int3
  38:	cc                   	int3
  39:	cc                   	int3
  3a:	cc                   	int3
  3b:	0f 1f 00             	nopl   (%rax)
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	74 05                	je     0x7
   2:	c3                   	ret
   3:	cc                   	int3
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   c:	c3                   	ret
   d:	cc                   	int3
   e:	cc                   	int3
   f:	cc                   	int3
  10:	cc                   	int3
  11:	0f 1f 00             	nopl   (%rax)
  14:	90                   	nop
  15:	90                   	nop
# 56.67 [+0.00] [  397.086466] RSP: 0018:ffffa8c545c27d60 EFLAGS: 00000286
# 56.67 [+0.00] [  397.086500] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000017
# 56.67 [+0.00] [  397.086545] RDX: ffffffff9dd9b01d RSI: 0000000000000282 RDI: ffffffff9f70a120
# 56.67 [+0.00] [  397.086590] RBP: ffff954801e7c000 R08: 0000005c80a34032 R09: 0000000000000001
# 56.67 [+0.00] [  397.086635] R10: ffff954801d9edf8 R11: 0000000000000000 R12: 0000000000000001
# 56.67 [+0.00] [  397.086681] R13: ffffffff9f70a120 R14: 0000000000000282 R15: ffff954801d9ec00
# 56.68 [+0.00] [  397.086727] ? rpm_suspend (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/rpm.h:84 drivers/base/power/runtime.c:718) 
# 56.68 [+0.00] [  397.086754] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
# 56.68 [+0.00] [  397.086785] n_tty_write (drivers/tty/n_tty.c:574 drivers/tty/n_tty.c:2389) 
# 56.68 [+0.00] [  397.086814] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
# 56.68 [+0.00] [  397.086864] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1015 drivers/tty/tty_io.c:1090) 
# 56.68 [+0.00] [  397.086896] vfs_write (fs/read_write.c:590 fs/read_write.c:683) 
# 56.68 [+0.00] [  397.086925] ksys_write (fs/read_write.c:736) 
# 56.68 [+0.00] [  397.086956] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
# 56.68 [+0.00] [  397.086986] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 56.68 [+0.00] [  397.087023] RIP: 0033:0x7f9fb779a957
# 56.68 [+0.00] [ 397.087050] 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
# 56.69 [+0.00] [  397.087148] RSP: 002b:00007ffea0813a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 56.69 [+0.00] [  397.087193] RAX: ffffffffffffffda RBX: 000055cacbc0e1f0 RCX: 00007f9fb779a957
# 56.69 [+0.00] [  397.087238] RDX: 0000000000000001 RSI: 000055cacbc0e1f0 RDI: 0000000000000001
# 56.69 [+0.00] [  397.087277] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 56.69 [+0.00] [  397.087323] R10: 0000000000000001 R11: 0000000000000246 R12: 000055cacbbfa580
# 56.69 [+0.00] [  397.087363] R13: 000055cacbbdb2a0 R14: 0000000000000001 R15: 000055cacbbfa580
| xx__-> echo $?
| 0
| xx__-> [  386.413428] Mirror/redirect action on
| [  397.085814] irq 4: nobody cared (try booting with the "irqpoll" option)
[  397.085974] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  397.086039] Call Trace:
[  397.086062]  <IRQ>
[  397.086083] dump_stack_lvl (lib/dump_stack.c:123) 
[  397.086117] __report_bad_irq (kernel/irq/spurious.c:214) 
[  397.086146] note_interrupt (kernel/irq/spurious.c:423) 
[  397.086170] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[  397.086196] handle_edge_irq (kernel/irq/chip.c:833) 
[  397.086221] __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) 
[  397.086247] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14)) 
[  397.086275]  </IRQ>
[  397.086291]  <TASK>
[  397.086304] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[  397.086334] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 397.086368] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d 0c 6b e8 61 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
All code
========
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	f3 0f 1e fa          	endbr64
  12:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  17:	c6 07 00             	movb   $0x0,(%rdi)
  1a:	f7 c6 00 02 00 00    	test   $0x200,%esi
  20:	74 01                	je     0x23
  22:	fb                   	sti
  23:	65 ff 0d 0c 6b e8 61 	decl   %gs:0x61e86b0c(%rip)        # 0x61e86b36
  2a:*	74 05                	je     0x31		<-- trapping instruction
  2c:	c3                   	ret
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	cc                   	int3
  31:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  36:	c3                   	ret
  37:	cc                   	int3
  38:	cc                   	int3
  39:	cc                   	int3
  3a:	cc                   	int3
  3b:	0f 1f 00             	nopl   (%rax)
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	74 05                	je     0x7
   2:	c3                   	ret
   3:	cc                   	int3
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   c:	c3                   	ret
   d:	cc                   	int3
   e:	cc                   	int3
   f:	cc                   	int3
  10:	cc                   	int3
  11:	0f 1f 00             	nopl   (%rax)
  14:	90                   	nop
  15:	90                   	nop
[  397.086466] RSP: 0018:ffffa8c545c27d60 EFLAGS: 00000286
[  397.086500] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000017
[  397.086545] RDX: ffffffff9dd9b01d RSI: 0000000000000282 RDI: ffffffff9f70a120
[  397.086590] RBP: ffff954801e7c000 R08: 0000005c80a34032 R09: 0000000000000001
[  397.086635] R10: ffff954801d9edf8 R11: 0000000000000000 R12: 0000000000000001
[  397.086681] R13: ffffffff9f70a120 R14: 0000000000000282 R15: ffff954801d9ec00
[  397.086727] ? rpm_suspend (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/rpm.h:84 drivers/base/power/runtime.c:718) 
[  397.086754] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
[  397.086785] n_tty_write (drivers/tty/n_tty.c:574 drivers/tty/n_tty.c:2389) 
[  397.086814] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
[  397.086864] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1015 drivers/tty/tty_io.c:1090) 
[  397.086896] vfs_write (fs/read_write.c:590 fs/read_write.c:683) 
[  397.086925] ksys_write (fs/read_write.c:736) 
[  397.086956] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[  397.086986] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  397.087023] RIP: 0033:0x7f9fb779a957
[ 397.087050] 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
[  397.087148] RSP: 002b:00007ffea0813a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  397.087193] RAX: ffffffffffffffda RBX: 000055cacbc0e1f0 RCX: 00007f9fb779a957
[  397.087238] RDX: 0000000000000001 RSI: 000055cacbc0e1f0 RDI: 0000000000000001
[  397.087277] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  397.087323] R10: 0000000000000001 R11: 0000000000000246 R12: 000055cacbbfa580


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