======================================
| # 65.45 [+0.00] [  897.631016] vx10: left promiscuous mode
| # 65.45 [+0.00] [  897.631297] br1: port 1(vx10) entered disabled state
| # 65.45 [+0.00] [  916.856897] Mirror/redirect action on
| # 65.45 [+0.00] [  932.739961] irq 51: nobody cared (try booting with the "irqpoll" option)
# 65.45 [+0.00] [  932.740395] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 65.45 [+0.00] [  932.740397] Call Trace:
# 65.45 [+0.00] [  932.740399]  <IRQ>
# 65.46 [+0.00] [  932.740402] dump_stack_lvl (lib/dump_stack.c:123) 
# 65.46 [+0.00] [  932.740412] __report_bad_irq (kernel/irq/spurious.c:214) 
# 65.46 [+0.00] [  932.740419] note_interrupt (kernel/irq/spurious.c:423) 
# 65.46 [+0.00] [  932.740425] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 65.46 [+0.00] [  932.740431] handle_edge_irq (kernel/irq/chip.c:833) 
# 65.46 [+0.00] [  932.740438] __common_interrupt (./include/linux/irqdesc.h:173 arch/x86/kernel/irq.c:254 arch/x86/kernel/irq.c:266 arch/x86/kernel/irq.c:292) 
# 65.46 [+0.00] [  932.740444] common_interrupt (arch/x86/kernel/irq.c:285 (discriminator 14)) 
# 65.47 [+0.01] [  932.740448]  </IRQ>
# 65.47 [+0.00] [  932.740449]  <TASK>
# 65.47 [+0.00] [  932.740451] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 65.47 [+0.00] [  932.740456] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 65.47 [+0.00] [ 932.740463] Code: 10 e8 a1 5f 86 fd 48 89 ef e8 e9 af 86 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 fd fb 95 02 <74> 0e 5b 5d c3 cc cc cc cc e8 7f c0 ab fd eb dc e8 28 cd 34 fd 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	a1 5f 86 fd 48 89 ef 	movabs 0xe9e8ef8948fd865f,%eax
   9:	e8 e9 
   b:	af                   	scas   %es:(%rdi),%eax
   c:	86 fd                	xchg   %bh,%ch
   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 fd fb 95 02 	decl   %gs:0x295fbfd(%rip)        # 0x295fc27
  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 c0 ab fd       	call   0xfffffffffdabc0b7
  38:	eb dc                	jmp    0x16
  3a:	e8 28 cd 34 fd       	call   0xfffffffffd34cd67
  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 c0 ab fd       	call   0xfffffffffdabc08d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	e8 28 cd 34 fd       	call   0xfffffffffd34cd3d
  15:	5b                   	pop    %rbx
# 65.48 [+0.00] [  932.740466] RSP: 0018:ffffc90001b17aa0 EFLAGS: 00000286
# 65.48 [+0.00] [  932.740470] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000040
# 65.48 [+0.00] [  932.740472] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb1368441
# 65.48 [+0.00] [  932.740474] RBP: ffffffffb4d1d920 R08: 0000000000000001 R09: 0000000000000001
# 65.48 [+0.00] [  932.740475] R10: ffffffffb2d9cf97 R11: ffff8880060e8970 R12: 00000000ffffffff
# 65.48 [+0.00] [  932.740477] R13: 0000000000000001 R14: ffffffffb4d1da28 R15: 00000000ffffffff
# 65.48 [+0.00] [  932.740485] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
# 65.49 [+0.00] [  932.740491] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
# 65.49 [+0.00] [  932.740498] process_output_block (drivers/tty/n_tty.c:574) 
# 65.49 [+0.00] [  932.740507] n_tty_write (drivers/tty/n_tty.c:2390) 
# 65.49 [+0.00] [  932.740514] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360) 
# 65.49 [+0.00] [  932.740517] ? lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
# 65.49 [+0.00] [  932.740521] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
# 65.49 [+0.00] [  932.740524] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
# 65.49 [+0.00] [  932.740530] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
# 65.49 [+0.00] [  932.740532] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
# 65.49 [+0.00] [  932.740539] iterate_tty_write (drivers/tty/tty_io.c:1015) 
# 65.50 [+0.00] [  932.740543] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
# 65.50 [+0.00] [  932.740550] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) 
# 65.50 [+0.00] [  932.740555] vfs_write (fs/read_write.c:591 fs/read_write.c:684) 
# 65.50 [+0.00] [  932.740561] ? lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
# 65.50 [+0.00] [  932.740564] ? __might_fault (mm/memory.c:6838 mm/memory.c:6832) 
# 65.50 [+0.00] [  932.740571] ? __pfx_vfs_write (fs/read_write.c:665) 
# 65.50 [+0.00] [  932.740576] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
# 65.50 [+0.00] [  932.740581] ? rseq_update_cpu_node_id (kernel/rseq.c:189 (discriminator 10)) 
# 65.50 [+0.00] [  932.740586] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
# 65.50 [+0.00] [  932.740594] ksys_write (fs/read_write.c:736) 
# 65.51 [+0.00] [  932.740598] ? __pfx_ksys_write (fs/read_write.c:726) 
# 65.51 [+0.00] [  932.740603] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
# 65.51 [+0.00] [  932.740610] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
# 65.51 [+0.00] [  932.740616] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 65.51 [+0.00] [  932.740619] RIP: 0033:0x7fd3ddc06b77
# 65.51 [+0.00] [ 932.740622] 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
# 65.52 [+0.00] [  932.740624] RSP: 002b:00007ffd16a31d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 65.52 [+0.00] [  932.740627] RAX: ffffffffffffffda RBX: 000055f862ee73f0 RCX: 00007fd3ddc06b77
# 65.52 [+0.00] [  932.740629] RDX: 0000000000000001 RSI: 000055f862ee73f0 RDI: 0000000000000001
# 65.52 [+0.00] [  932.740630] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 65.52 [+0.00] [  932.740632] R10: 0000000000000001 R11: 0000000000000246 R12: 000055f862ed25e0
# 65.52 [+0.00] [  932.740633] R13: 000055f862eb32a0 R14: 0000000000000001 R15: 000055f862ed25e0
| xx__-> echo $?
| 0
| xx__-> [  916.856897][ T4806] Mirror/redirect action on
| [  932.739961][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[  932.740395][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  932.740397][    C0] Call Trace:
[  932.740399][    C0]  <IRQ>
[ 932.740402][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 932.740412][ C0] __report_bad_irq (kernel/irq/spurious.c:214) 
[ 932.740419][ C0] note_interrupt (kernel/irq/spurious.c:423) 
[ 932.740425][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 932.740431][ C0] handle_edge_irq (kernel/irq/chip.c:833) 
[ 932.740438][ C0] __common_interrupt (./include/linux/irqdesc.h:173 arch/x86/kernel/irq.c:254 arch/x86/kernel/irq.c:266 arch/x86/kernel/irq.c:292) 
[ 932.740444][ C0] common_interrupt (arch/x86/kernel/irq.c:285 (discriminator 14)) 
[  932.740448][    C0]  </IRQ>
[  932.740449][    C0]  <TASK>
[ 932.740451][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[ 932.740456][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 932.740463][ C0] Code: 10 e8 a1 5f 86 fd 48 89 ef e8 e9 af 86 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 fd fb 95 02 <74> 0e 5b 5d c3 cc cc cc cc e8 7f c0 ab fd eb dc e8 28 cd 34 fd 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	a1 5f 86 fd 48 89 ef 	movabs 0xe9e8ef8948fd865f,%eax
   9:	e8 e9 
   b:	af                   	scas   %es:(%rdi),%eax
   c:	86 fd                	xchg   %bh,%ch
   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 fd fb 95 02 	decl   %gs:0x295fbfd(%rip)        # 0x295fc27
  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 c0 ab fd       	call   0xfffffffffdabc0b7
  38:	eb dc                	jmp    0x16
  3a:	e8 28 cd 34 fd       	call   0xfffffffffd34cd67
  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 c0 ab fd       	call   0xfffffffffdabc08d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	e8 28 cd 34 fd       	call   0xfffffffffd34cd3d
  15:	5b                   	pop    %rbx
[  932.740466][    C0] RSP: 0018:ffffc90001b17aa0 EFLAGS: 00000286
[  932.740470][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000040
[  932.740472][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb1368441
[  932.740474][    C0] RBP: ffffffffb4d1d920 R08: 0000000000000001 R09: 0000000000000001
[  932.740475][    C0] R10: ffffffffb2d9cf97 R11: ffff8880060e8970 R12: 00000000ffffffff
[  932.740477][    C0] R13: 0000000000000001 R14: ffffffffb4d1da28 R15: 00000000ffffffff
[ 932.740485][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 932.740491][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) 
[ 932.740498][ C0] process_output_block (drivers/tty/n_tty.c:574) 
[ 932.740507][ C0] n_tty_write (drivers/tty/n_tty.c:2390) 
[ 932.740514][ C0] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360) 
[ 932.740517][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 932.740521][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
[ 932.740524][ C0] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
[ 932.740530][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 932.740532][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) 
[ 932.740539][ C0] iterate_tty_write (drivers/tty/tty_io.c:1015) 
[ 932.740543][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
[ 932.740550][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) 
[ 932.740555][ C0] vfs_write (fs/read_write.c:591 fs/read_write.c:684) 
[ 932.740561][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 932.740564][ C0] ? __might_fault (mm/memory.c:6838 mm/memory.c:6832) 
[ 932.740571][ C0] ? __pfx_vfs_write (fs/read_write.c:665) 
[ 932.740576][ C0] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21)) 
[ 932.740581][ C0] ? rseq_update_cpu_node_id (kernel/rseq.c:189 (discriminator 10)) 
[ 932.740586][ C0] ? __rseq_handle_notify_resume (kernel/rseq.c:442) 
[ 932.740594][ C0] ksys_write (fs/read_write.c:736) 
[ 932.740598][ C0] ? __pfx_ksys_write (fs/read_write.c:726) 
[ 932.740603][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 932.740610][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 932.740616][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  932.740619][    C0] RIP: 0033:0x7fd3ddc06b77
[ 932.740622][ 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
[  932.740624][    C0] RSP: 002b:00007ffd16a31d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  932.740627][    C0] RAX: ffffffffffffffda RBX: 000055f862ee73f0 RCX: 00007fd3ddc06b77
[  932.740629][    C0] RDX: 0000000000000001 RSI: 000055f862ee73f0 RDI: 0000000000000001
[  932.740630][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  932.740632][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 000055f862ed25e0


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