======================================
| # 107.70 [+0.00] [ 1878.438245] veth1: left promiscuous mode
| # 107.70 [+0.00] [ 1878.438547] br0: port 1(veth1) entered disabled state
| # 107.71 [+0.00] [ 1943.367908] tc (6463) used greatest stack depth: 23384 bytes left
| # 107.71 [+0.00] [ 1957.613074] irq 4: nobody cared (try booting with the "irqpoll" option)
# 107.71 [+0.00] [ 1957.613734] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
# 107.72 [+0.00] [ 1957.614099] Call Trace:
# 107.72 [+0.00] [ 1957.614234]  <IRQ>
# 107.72 [+0.00] [ 1957.614323] dump_stack_lvl (lib/dump_stack.c:123) 
# 107.72 [+0.00] [ 1957.614508] __report_bad_irq (kernel/irq/spurious.c:214) 
# 107.72 [+0.00] [ 1957.614676] note_interrupt (kernel/irq/spurious.c:423) 
# 107.72 [+0.00] [ 1957.614842] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 107.72 [+0.00] [ 1957.615009] handle_edge_irq (kernel/irq/chip.c:833) 
# 107.72 [+0.00] [ 1957.615185] __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) 
# 107.73 [+0.00] [ 1957.615350] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14)) 
# 107.73 [+0.00] [ 1957.615518]  </IRQ>
# 107.73 [+0.00] [ 1957.615602]  <TASK>
# 107.73 [+0.00] [ 1957.615683] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 107.73 [+0.00] [ 1957.615844] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 107.73 [+0.00] [ 1957.616054] Code: 10 e8 61 fa 86 fd 48 89 ef e8 79 6b 87 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 45 62 9a 4c <74> 0e 5b 5d c3 cc cc cc cc e8 7f 3e ac fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	61                   	(bad)
   3:	fa                   	cli
   4:	86 fd                	xchg   %bh,%ch
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 79 6b 87 fd       	call   0xfffffffffd876b87
   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 45 62 9a 4c 	decl   %gs:0x4c9a6245(%rip)        # 0x4c9a626f
  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 7f 3e ac fd       	call   0xfffffffffdac3eb7
  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 7f 3e ac fd       	call   0xfffffffffdac3e8d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
# 107.74 [+0.01] [ 1957.616619] RSP: 0018:ffffc9000194faa0 EFLAGS: 00000286
# 107.74 [+0.00] [ 1957.616824] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff6d3f2bf
# 107.74 [+0.00] [ 1957.617067] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb3696691
# 107.74 [+0.00] [ 1957.617310] RBP: ffffffffb72bd460 R08: 0000000000000001 R09: fffffbfff6d3a3d0
# 107.75 [+0.00] [ 1957.617566] R10: ffffffffb69d1e87 R11: 0000000000000000 R12: 00000000ffffffff
# 107.75 [+0.00] [ 1957.617802] R13: 0000000000000001 R14: ffffffffb72bd568 R15: 00000000ffffffff
# 107.75 [+0.00] [ 1957.618062] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
# 107.75 [+0.00] [ 1957.618273] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
# 107.75 [+0.00] [ 1957.618407] process_output_block (drivers/tty/n_tty.c:574) 
# 107.75 [+0.00] [ 1957.618571] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
# 107.76 [+0.00] [ 1957.618780] n_tty_write (drivers/tty/n_tty.c:2390) 
# 107.76 [+0.00] [ 1957.618952] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360) 
# 107.76 [+0.00] [ 1957.619118] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
# 107.76 [+0.00] [ 1957.619278] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
# 107.76 [+0.00] [ 1957.619443] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
# 107.76 [+0.00] [ 1957.619599] ? lock_acquire (kernel/locking/lockdep.c:5798) 
# 107.76 [+0.00] [ 1957.619761] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
# 107.77 [+0.00] [ 1957.619930] iterate_tty_write (drivers/tty/tty_io.c:1015) 
# 107.77 [+0.00] [ 1957.620093] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
# 107.77 [+0.00] [ 1957.620256] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) 
# 107.77 [+0.00] [ 1957.620423] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
# 107.77 [+0.00] [ 1957.620555] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
# 107.77 [+0.00] [ 1957.620715] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
# 107.77 [+0.00] [ 1957.620882] ? __might_fault (mm/memory.c:6716 mm/memory.c:6709) 
# 107.77 [+0.00] [ 1957.621045] ? lock_acquire (kernel/locking/lockdep.c:5798) 
# 107.78 [+0.00] [ 1957.621203] ? __pfx_vfs_write (fs/read_write.c:660) 
# 107.78 [+0.00] [ 1957.621373] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 52)) 
# 107.78 [+0.00] [ 1957.621544] ? __rseq_handle_notify_resume (kernel/rseq.c:333) 
# 107.78 [+0.00] [ 1957.621759] ksys_write (fs/read_write.c:731) 
# 107.78 [+0.00] [ 1957.621882] ? __pfx_ksys_write (fs/read_write.c:721) 
# 107.78 [+0.00] [ 1957.622061] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
# 107.78 [+0.00] [ 1957.622226] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 107.79 [+0.00] [ 1957.622430] RIP: 0033:0x7fdba8345957
# 107.79 [+0.00] [ 1957.622595] 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
# 107.79 [+0.01] [ 1957.623157] RSP: 002b:00007ffdc17fb6c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 107.79 [+0.00] [ 1957.623394] RAX: ffffffffffffffda RBX: 0000562a84a2f2b0 RCX: 00007fdba8345957
# 107.80 [+0.00] [ 1957.623635] RDX: 0000000000000001 RSI: 0000562a84a2f2b0 RDI: 0000000000000001
# 107.80 [+0.00] [ 1957.623867] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 107.80 [+0.00] [ 1957.624108] R10: 0000000000000001 R11: 0000000000000246 R12: 0000562a84a1a5e0
# 107.80 [+0.00] [ 1957.624344] R13: 0000562a849fb2a0 R14: 0000000000000001 R15: 0000562a84a1a5e0
| xx__-> echo $?
| 0
| xx__-> [ 1943.367908][ T6463] tc (6463) used greatest stack depth: 23384 bytes left
| [ 1957.613074][    C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1957.613734][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1957.614099][    C3] Call Trace:
[ 1957.614234][    C3]  <IRQ>
[ 1957.614323][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1957.614508][ C3] __report_bad_irq (kernel/irq/spurious.c:214) 
[ 1957.614676][ C3] note_interrupt (kernel/irq/spurious.c:423) 
[ 1957.614842][ C3] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 1957.615009][ C3] handle_edge_irq (kernel/irq/chip.c:833) 
[ 1957.615185][ 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) 
[ 1957.615350][ C3] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14)) 
[ 1957.615518][    C3]  </IRQ>
[ 1957.615602][    C3]  <TASK>
[ 1957.615683][ C3] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[ 1957.615844][ C3] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1957.616054][ C3] Code: 10 e8 61 fa 86 fd 48 89 ef e8 79 6b 87 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 45 62 9a 4c <74> 0e 5b 5d c3 cc cc cc cc e8 7f 3e ac fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	61                   	(bad)
   3:	fa                   	cli
   4:	86 fd                	xchg   %bh,%ch
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 79 6b 87 fd       	call   0xfffffffffd876b87
   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 45 62 9a 4c 	decl   %gs:0x4c9a6245(%rip)        # 0x4c9a626f
  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 7f 3e ac fd       	call   0xfffffffffdac3eb7
  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 7f 3e ac fd       	call   0xfffffffffdac3e8d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[ 1957.616619][    C3] RSP: 0018:ffffc9000194faa0 EFLAGS: 00000286
[ 1957.616824][    C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff6d3f2bf
[ 1957.617067][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb3696691
[ 1957.617310][    C3] RBP: ffffffffb72bd460 R08: 0000000000000001 R09: fffffbfff6d3a3d0
[ 1957.617566][    C3] R10: ffffffffb69d1e87 R11: 0000000000000000 R12: 00000000ffffffff
[ 1957.617802][    C3] R13: 0000000000000001 R14: ffffffffb72bd568 R15: 00000000ffffffff
[ 1957.618062][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1957.618273][ C3] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
[ 1957.618407][ C3] process_output_block (drivers/tty/n_tty.c:574) 
[ 1957.618571][ C3] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 1957.618780][ C3] n_tty_write (drivers/tty/n_tty.c:2390) 
[ 1957.618952][ C3] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360) 
[ 1957.619118][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 1957.619278][ C3] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
[ 1957.619443][ C3] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
[ 1957.619599][ C3] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 1957.619761][ C3] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
[ 1957.619930][ C3] iterate_tty_write (drivers/tty/tty_io.c:1015) 
[ 1957.620093][ C3] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
[ 1957.620256][ C3] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) 
[ 1957.620423][ C3] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 1957.620555][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 1957.620715][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 1957.620882][ C3] ? __might_fault (mm/memory.c:6716 mm/memory.c:6709) 
[ 1957.621045][ C3] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 1957.621203][ C3] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 1957.621373][ C3] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 52)) 
[ 1957.621544][ C3] ? __rseq_handle_notify_resume (kernel/rseq.c:333) 
[ 1957.621759][ C3] ksys_write (fs/read_write.c:731) 
[ 1957.621882][ C3] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 1957.622061][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 1957.622226][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1957.622430][    C3] RIP: 0033:0x7fdba8345957
[ 1957.622595][ 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
[ 1957.623157][    C3] RSP: 002b:00007ffdc17fb6c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1957.623394][    C3] RAX: ffffffffffffffda RBX: 0000562a84a2f2b0 RCX: 00007fdba8345957
[ 1957.623635][    C3] RDX: 0000000000000001 RSI: 0000562a84a2f2b0 RDI: 0000000000000001
[ 1957.623867][    C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1957.624108][    C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000562a84a1a5e0


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