======================================
| # 76.91 [+0.00] [  893.074570] vx10: left promiscuous mode
| # 76.91 [+0.00] [  893.075104] br1: port 1(vx10) entered disabled state
| # 76.91 [+0.00] [  914.838931] Mirror/redirect action on
| # 76.91 [+0.00] [  932.934446] irq 51: nobody cared (try booting with the "irqpoll" option)
# 76.92 [+0.00] [  932.934931] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 76.92 [+0.00] [  932.934934] Call Trace:
# 76.92 [+0.00] [  932.934936]  <IRQ>
# 76.92 [+0.00] [  932.934939] dump_stack_lvl (lib/dump_stack.c:123) 
# 76.92 [+0.00] [  932.934954] __report_bad_irq (kernel/irq/spurious.c:214) 
# 76.92 [+0.00] [  932.934965] note_interrupt (kernel/irq/spurious.c:423) 
# 76.92 [+0.00] [  932.934975] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 76.92 [+0.00] [  932.934981] handle_edge_irq (kernel/irq/chip.c:833) 
# 76.92 [+0.00] [  932.934992] __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) 
# 76.92 [+0.00] [  932.935002] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14)) 
# 76.93 [+0.00] [  932.935008]  </IRQ>
# 76.93 [+0.00] [  932.935009]  <TASK>
# 76.93 [+0.00] [  932.935012] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 76.93 [+0.00] [  932.935018] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 76.93 [+0.00] [ 932.935024] Code: 10 e8 31 dc 87 fd 48 89 ef e8 79 4c 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 b5 dd 0f 4c <74> 0e 5b 5d c3 cc cc cc cc e8 7f 7d ad fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	31 dc                	xor    %ebx,%esp
   4:	87 fd                	xchg   %edi,%ebp
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 79 4c 88 fd       	call   0xfffffffffd884c87
   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 b5 dd 0f 4c 	decl   %gs:0x4c0fddb5(%rip)        # 0x4c0fdddf
  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 7d ad fd       	call   0xfffffffffdad7db7
  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 7d ad fd       	call   0xfffffffffdad7d8d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
# 76.93 [+0.01] [  932.935027] RSP: 0018:ffffc90000fd7aa0 EFLAGS: 00000286
# 76.94 [+0.00] [  932.935031] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff6e09be0
# 76.94 [+0.00] [  932.935034] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb3f3e761
# 76.94 [+0.00] [  932.935036] RBP: ffffffffb7914b20 R08: 0000000000000001 R09: fffffbfff6e051eb
# 76.94 [+0.00] [  932.935038] R10: ffffffffb7028f5f R11: ffff88800b902300 R12: 00000000ffffffff
# 76.94 [+0.00] [  932.935040] R13: 0000000000000001 R14: ffffffffb7914c28 R15: 00000000ffffffff
# 76.95 [+0.00] [  932.935051] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
# 76.95 [+0.00] [  932.935060] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
# 76.95 [+0.01] [  932.935073] process_output_block (drivers/tty/n_tty.c:574) 
# 76.96 [+0.00] [  932.935082] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
# 76.96 [+0.00] [  932.935092] n_tty_write (drivers/tty/n_tty.c:2390) 
# 76.96 [+0.00] [  932.935103] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360) 
# 76.96 [+0.00] [  932.935107] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
# 76.96 [+0.00] [  932.935111] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
# 76.96 [+0.00] [  932.935118] ? lock_acquire (kernel/locking/lockdep.c:5824) 
# 76.96 [+0.00] [  932.935121] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
# 76.97 [+0.00] [  932.935132] iterate_tty_write (drivers/tty/tty_io.c:1015) 
# 76.97 [+0.00] [  932.935139] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
# 76.97 [+0.00] [  932.935147] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) 
# 76.97 [+0.00] [  932.935155] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
# 76.97 [+0.00] [  932.935162] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
# 76.97 [+0.00] [  932.935169] ? __pfx_vfs_write (fs/read_write.c:660) 
# 76.97 [+0.00] [  932.935176] ? clockevents_program_event (kernel/time/clockevents.c:326) 
# 76.97 [+0.00] [  932.935192] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
# 76.98 [+0.00] [  932.935201] ksys_write (fs/read_write.c:731) 
# 76.98 [+0.00] [  932.935206] ? __pfx_ksys_write (fs/read_write.c:721) 
# 76.98 [+0.00] [  932.935220] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
# 76.98 [+0.00] [  932.935226] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 76.98 [+0.00] [  932.935229] RIP: 0033:0x7f700927eb77
# 76.98 [+0.00] [ 932.935233] 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
# 76.99 [+0.00] [  932.935235] RSP: 002b:00007ffd6f3eebb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 76.99 [+0.00] [  932.935238] RAX: ffffffffffffffda RBX: 0000560d6c52e2b0 RCX: 00007f700927eb77
# 76.99 [+0.00] [  932.935240] RDX: 0000000000000001 RSI: 0000560d6c52e2b0 RDI: 0000000000000001
# 76.99 [+0.00] [  932.935242] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 76.99 [+0.00] [  932.935243] R10: 0000000000000001 R11: 0000000000000246 R12: 0000560d6c5195e0
# 77.00 [+0.00] [  932.935244] R13: 0000560d6c4fa2a0 R14: 0000000000000001 R15: 0000560d6c5195e0
| xx__-> echo $?
| 0
| xx__-> [  914.838931][T10783] Mirror/redirect action on
| [  932.934446][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[  932.934931][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  932.934934][    C0] Call Trace:
[  932.934936][    C0]  <IRQ>
[ 932.934939][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 932.934954][ C0] __report_bad_irq (kernel/irq/spurious.c:214) 
[ 932.934965][ C0] note_interrupt (kernel/irq/spurious.c:423) 
[ 932.934975][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 932.934981][ C0] handle_edge_irq (kernel/irq/chip.c:833) 
[ 932.934992][ C0] __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) 
[ 932.935002][ C0] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14)) 
[  932.935008][    C0]  </IRQ>
[  932.935009][    C0]  <TASK>
[ 932.935012][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[ 932.935018][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 932.935024][ C0] Code: 10 e8 31 dc 87 fd 48 89 ef e8 79 4c 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 b5 dd 0f 4c <74> 0e 5b 5d c3 cc cc cc cc e8 7f 7d ad fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	31 dc                	xor    %ebx,%esp
   4:	87 fd                	xchg   %edi,%ebp
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 79 4c 88 fd       	call   0xfffffffffd884c87
   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 b5 dd 0f 4c 	decl   %gs:0x4c0fddb5(%rip)        # 0x4c0fdddf
  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 7d ad fd       	call   0xfffffffffdad7db7
  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 7d ad fd       	call   0xfffffffffdad7d8d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[  932.935027][    C0] RSP: 0018:ffffc90000fd7aa0 EFLAGS: 00000286
[  932.935031][    C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff6e09be0
[  932.935034][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb3f3e761
[  932.935036][    C0] RBP: ffffffffb7914b20 R08: 0000000000000001 R09: fffffbfff6e051eb
[  932.935038][    C0] R10: ffffffffb7028f5f R11: ffff88800b902300 R12: 00000000ffffffff
[  932.935040][    C0] R13: 0000000000000001 R14: ffffffffb7914c28 R15: 00000000ffffffff
[ 932.935051][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 932.935060][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
[ 932.935073][ C0] process_output_block (drivers/tty/n_tty.c:574) 
[ 932.935082][ C0] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 932.935092][ C0] n_tty_write (drivers/tty/n_tty.c:2390) 
[ 932.935103][ C0] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360) 
[ 932.935107][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 932.935111][ C0] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
[ 932.935118][ C0] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 932.935121][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
[ 932.935132][ C0] iterate_tty_write (drivers/tty/tty_io.c:1015) 
[ 932.935139][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
[ 932.935147][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) 
[ 932.935155][ C0] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 932.935162][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 932.935169][ C0] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 932.935176][ C0] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 932.935192][ C0] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 932.935201][ C0] ksys_write (fs/read_write.c:731) 
[ 932.935206][ C0] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 932.935220][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 932.935226][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  932.935229][    C0] RIP: 0033:0x7f700927eb77
[ 932.935233][ C0] 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
[  932.935235][    C0] RSP: 002b:00007ffd6f3eebb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  932.935238][    C0] RAX: ffffffffffffffda RBX: 0000560d6c52e2b0 RCX: 00007f700927eb77
[  932.935240][    C0] RDX: 0000000000000001 RSI: 0000560d6c52e2b0 RDI: 0000000000000001
[  932.935242][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  932.935243][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 0000560d6c5195e0


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