======================================
| # 97.14 [+0.00] [  881.526081] br1: port 1(vx10) entered disabled state
| # 97.14 [+0.00] [  883.444446] ip (10543) used greatest stack depth: 24016 bytes left
| # 97.14 [+0.00] [  901.914503] Mirror/redirect action on
| # 97.14 [+0.00] [  967.428086] irq 51: nobody cared (try booting with the "irqpoll" option)
# 97.15 [+0.00] [  967.428808] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 97.15 [+0.00] [  967.429042] Call Trace:
# 97.15 [+0.00] [  967.429249]  <IRQ>
# 97.15 [+0.00] [  967.429343] dump_stack_lvl (lib/dump_stack.c:123)
# 97.16 [+0.00] [  967.429546] __report_bad_irq (kernel/irq/spurious.c:214)
# 97.16 [+0.00] [  967.429734] note_interrupt (kernel/irq/spurious.c:423)
# 97.16 [+0.00] [  967.429923] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210)
# 97.17 [+0.01] [  967.430103] handle_edge_irq (kernel/irq/chip.c:833)
# 97.17 [+0.00] [  967.430282] __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)
# 97.17 [+0.00] [  967.430462] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14))
# 97.18 [+0.00] [  967.430641]  </IRQ>
# 97.18 [+0.00] [  967.430736]  <TASK>
# 97.18 [+0.00] [  967.430869] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
# 97.18 [+0.00] [  967.431054] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
# 97.18 [+0.00] [ 967.431295] Code: 10 e8 61 0b 8c fd 48 89 ef e8 19 80 8c 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 55 05 f4 44 <74> 0e 5b 5d c3 cc cc cc cc e8 0f c8 b1 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	61                   	(bad)
   3:	0b 8c fd 48 89 ef e8 	or     -0x171076b8(%rbp,%rdi,8),%ecx
   a:	19 80 8c fd 81 e3    	sbb    %eax,-0x1c7e0274(%rax)
  10:	00 02                	add    %al,(%rdx)
  12:	00 00                	add    %al,(%rax)
  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 55 05 f4 44 	decl   %gs:0x44f40555(%rip)        # 0x44f4057f
  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 0f c8 b1 fd       	call   0xfffffffffdb1c847
  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 0f c8 b1 fd       	call   0xfffffffffdb1c81d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
# 97.19 [+0.01] [  967.431884] RSP: 0018:ffffc900012f7aa0 EFLAGS: 00000286
# 97.19 [+0.00] [  967.432107] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff7c8494e
# 97.20 [+0.00] [  967.432368] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffbb0fbfc1
# 97.20 [+0.00] [  967.432629] RBP: ffffffffbeceb800 R08: 0000000000000001 R09: fffffbfff7c7ffef
# 97.20 [+0.00] [  967.432882] R10: ffffffffbe3fff7f R11: ffff888009908040 R12: 00000000ffffffff
# 97.20 [+0.00] [  967.433147] R13: 0000000000000001 R14: ffffffffbeceb908 R15: 00000000ffffffff
# 97.21 [+0.00] [  967.433420] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
# 97.21 [+0.00] [  967.433650] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636)
# 97.21 [+0.00] [  967.433790] process_output_block (drivers/tty/n_tty.c:574)
# 97.21 [+0.00] [  967.433969] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
# 97.21 [+0.00] [  967.434184] n_tty_write (drivers/tty/n_tty.c:2390)
# 97.22 [+0.00] [  967.434360] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360)
# 97.22 [+0.00] [  967.434534] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
# 97.22 [+0.00] [  967.434702] ? __pfx_woken_wake_function (kernel/sched/wait.c:439)
# 97.22 [+0.00] [  967.434881] ? lock_acquire (kernel/locking/lockdep.c:5822)
# 97.22 [+0.00] [  967.435054] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967)
# 97.23 [+0.00] [  967.435235] iterate_tty_write (drivers/tty/tty_io.c:1015)
# 97.23 [+0.00] [  967.435411] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
# 97.23 [+0.00] [  967.435586] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090)
# 97.23 [+0.00] [  967.435768] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
# 97.23 [+0.00] [  967.435899] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
# 97.23 [+0.00] [  967.436072] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
# 97.23 [+0.00] [  967.436237] ? lock_acquire (kernel/locking/lockdep.c:5822)
# 97.23 [+0.00] [  967.436405] ? __pfx_vfs_write (fs/read_write.c:660)
# 97.24 [+0.00] [  967.436583] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 37))
# 97.24 [+0.00] [  967.436768] ? __rseq_handle_notify_resume (kernel/rseq.c:333)
# 97.24 [+0.00] [  967.436989] ksys_write (fs/read_write.c:731)
# 97.24 [+0.00] [  967.437124] ? __pfx_ksys_write (fs/read_write.c:721)
# 97.24 [+0.01] [  967.437313] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
# 97.25 [+0.00] [  967.437482] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
# 97.26 [+0.01] [  967.437685] RIP: 0033:0x7f454a79cb77
# 97.26 [+0.00] [ 967.437857] 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
# 97.26 [+0.00] [  967.438440] RSP: 002b:00007fff93447eb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 97.27 [+0.00] [  967.438697] RAX: ffffffffffffffda RBX: 000055f725e8d2b0 RCX: 00007f454a79cb77
# 97.27 [+0.00] [  967.438948] RDX: 0000000000000001 RSI: 000055f725e8d2b0 RDI: 0000000000000001
# 97.27 [+0.00] [  967.439197] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 97.27 [+0.00] [  967.439450] R10: 0000000000000001 R11: 0000000000000246 R12: 000055f725e785e0
# 97.27 [+0.00] [  967.439696] R13: 000055f725e592a0 R14: 0000000000000001 R15: 000055f725e785e0
| xx__-> echo $?
| 0
| xx__-> [  901.914503][T10782] Mirror/redirect action on
| [  967.428086][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[  967.428808][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  967.429042][    C0] Call Trace:
[  967.429249][    C0]  <IRQ>
[ 967.429343][ C0] dump_stack_lvl (lib/dump_stack.c:123)
[ 967.429546][ C0] __report_bad_irq (kernel/irq/spurious.c:214)
[ 967.429734][ C0] note_interrupt (kernel/irq/spurious.c:423)
[ 967.429923][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210)
[ 967.430103][ C0] handle_edge_irq (kernel/irq/chip.c:833)
[ 967.430282][ 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)
[ 967.430462][ C0] common_interrupt (arch/x86/kernel/irq.c:278 (discriminator 14))
[  967.430641][    C0]  </IRQ>
[  967.430736][    C0]  <TASK>
[ 967.430869][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
[ 967.431054][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[ 967.431295][ C0] Code: 10 e8 61 0b 8c fd 48 89 ef e8 19 80 8c 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 55 05 f4 44 <74> 0e 5b 5d c3 cc cc cc cc e8 0f c8 b1 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	61                   	(bad)
   3:	0b 8c fd 48 89 ef e8 	or     -0x171076b8(%rbp,%rdi,8),%ecx
   a:	19 80 8c fd 81 e3    	sbb    %eax,-0x1c7e0274(%rax)
  10:	00 02                	add    %al,(%rdx)
  12:	00 00                	add    %al,(%rax)
  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 55 05 f4 44 	decl   %gs:0x44f40555(%rip)        # 0x44f4057f
  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 0f c8 b1 fd       	call   0xfffffffffdb1c847
  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 0f c8 b1 fd       	call   0xfffffffffdb1c81d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[  967.431884][    C0] RSP: 0018:ffffc900012f7aa0 EFLAGS: 00000286
[  967.432107][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff7c8494e
[  967.432368][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffbb0fbfc1
[  967.432629][    C0] RBP: ffffffffbeceb800 R08: 0000000000000001 R09: fffffbfff7c7ffef
[  967.432882][    C0] R10: ffffffffbe3fff7f R11: ffff888009908040 R12: 00000000ffffffff
[  967.433147][    C0] R13: 0000000000000001 R14: ffffffffbeceb908 R15: 00000000ffffffff
[ 967.433420][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 967.433650][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636)
[ 967.433790][ C0] process_output_block (drivers/tty/n_tty.c:574)
[ 967.433969][ C0] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 967.434184][ C0] n_tty_write (drivers/tty/n_tty.c:2390)
[ 967.434360][ C0] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360)
[ 967.434534][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 967.434702][ C0] ? __pfx_woken_wake_function (kernel/sched/wait.c:439)
[ 967.434881][ C0] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 967.435054][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967)
[ 967.435235][ C0] iterate_tty_write (drivers/tty/tty_io.c:1015)
[ 967.435411][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244)
[ 967.435586][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090)
[ 967.435768][ C0] vfs_write (fs/read_write.c:586 fs/read_write.c:679)
[ 967.435899][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 967.436072][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 967.436237][ C0] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 967.436405][ C0] ? __pfx_vfs_write (fs/read_write.c:660)
[ 967.436583][ C0] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 37))
[ 967.436768][ C0] ? __rseq_handle_notify_resume (kernel/rseq.c:333)
[ 967.436989][ C0] ksys_write (fs/read_write.c:731)
[ 967.437124][ C0] ? __pfx_ksys_write (fs/read_write.c:721)
[ 967.437313][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 967.437482][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  967.437685][    C0] RIP: 0033:0x7f454a79cb77
[ 967.437857][ 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
[  967.438440][    C0] RSP: 002b:00007fff93447eb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  967.438697][    C0] RAX: ffffffffffffffda RBX: 000055f725e8d2b0 RCX: 00007f454a79cb77
[  967.438948][    C0] RDX: 0000000000000001 RSI: 000055f725e8d2b0 RDI: 0000000000000001
[  967.439197][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  967.439450][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 000055f725e785e0


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