======================================
| # 78.75 [+0.00] [   28.978923] GACT probability NOT on
| # 78.75 [+0.00] [   29.015219] tc (384) used greatest stack depth: 24440 bytes left
| # 78.75 [+0.00] [ 1839.790456] Mirror/redirect action on
| # 78.75 [+0.00] [ 1859.405833] irq 51: nobody cared (try booting with the "irqpoll" option)
# 78.76 [+0.00] [ 1859.406399] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 78.76 [+0.00] [ 1859.406405] Call Trace:
# 78.76 [+0.00] [ 1859.406409]  <IRQ>
# 78.76 [+0.00] [ 1859.406412] dump_stack_lvl (lib/dump_stack.c:123) 
# 78.76 [+0.00] [ 1859.406445] __report_bad_irq (kernel/irq/spurious.c:170) 
# 78.76 [+0.00] [ 1859.406463] note_interrupt (kernel/irq/spurious.c:372) 
# 78.76 [+0.00] [ 1859.406470] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 78.77 [+0.00] [ 1859.406479] handle_edge_irq (kernel/irq/chip.c:857) 
# 78.77 [+0.00] [ 1859.406489] __common_interrupt (./include/asm-generic/irq_regs.h:28 arch/x86/kernel/irq.c:328) 
# 78.77 [+0.00] [ 1859.406504] common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14)) 
# 78.77 [+0.00] [ 1859.406510]  </IRQ>
# 78.77 [+0.00] [ 1859.406512]  <TASK>
# 78.77 [+0.00] [ 1859.406515] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 78.77 [+0.00] [ 1859.406525] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 78.77 [+0.00] [ 1859.406542] Code: 74 24 10 e8 31 2a 03 fe 48 89 ef e8 59 79 03 fe 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 9a ad f7 fd 65 8b 05 13 fc 0a 02 85 c0 74 0a 5b 5d c3 e8 d7 2e
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	31 2a                	xor    %ebp,(%rdx)
   6:	03 fe                	add    %esi,%edi
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 59 79 03 fe       	call   0xfffffffffe037969
  10:	81 e3 00 02 00 00    	and    $0x200,%ebx
  16:	75 25                	jne    0x3d
  18:	9c                   	pushf
  19:	58                   	pop    %rax
  1a:	f6 c4 02             	test   $0x2,%ah
  1d:	75 2d                	jne    0x4c
  1f:	48 85 db             	test   %rbx,%rbx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
  2a:*	e8 9a ad f7 fd       	call   0xfffffffffdf7adc9		<-- trapping instruction
  2f:	65 8b 05 13 fc 0a 02 	mov    %gs:0x20afc13(%rip),%eax        # 0x20afc49
  36:	85 c0                	test   %eax,%eax
  38:	74 0a                	je     0x44
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	c3                   	ret
  3d:	e8                   	.byte 0xe8
  3e:	d7                   	xlat   %ds:(%rbx)
  3f:	2e                   	cs

Code starting with the faulting instruction
===========================================
   0:	e8 9a ad f7 fd       	call   0xfffffffffdf7ad9f
   5:	65 8b 05 13 fc 0a 02 	mov    %gs:0x20afc13(%rip),%eax        # 0x20afc1f
   c:	85 c0                	test   %eax,%eax
   e:	74 0a                	je     0x1a
  10:	5b                   	pop    %rbx
  11:	5d                   	pop    %rbp
  12:	c3                   	ret
  13:	e8                   	.byte 0xe8
  14:	d7                   	xlat   %ds:(%rbx)
  15:	2e                   	cs
# 78.78 [+0.00] [ 1859.406545] RSP: 0018:ffffc9000b2afa98 EFLAGS: 00000206
# 78.78 [+0.00] [ 1859.406553] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000040
# 78.78 [+0.00] [ 1859.406555] RDX: 0000000000000000 RSI: ffffffffa05c5d73 RDI: 0000000000000001
# 78.78 [+0.00] [ 1859.406557] RBP: ffffffffa2e49300 R08: 0000000000000001 R09: 0000000000000001
# 78.78 [+0.00] [ 1859.406560] R10: ffffffffa1412817 R11: ffff888005e10970 R12: 00000000ffffffff
# 78.78 [+0.00] [ 1859.406562] R13: 0000000000000001 R14: ffffffffa2e49408 R15: 00000000ffffffff
# 78.79 [+0.00] [ 1859.406579] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:92 drivers/tty/serial/serial_core.c:88 drivers/tty/serial/serial_core.c:637) 
# 78.79 [+0.00] [ 1859.406598] process_output_block (drivers/tty/n_tty.c:561) 
# 78.79 [+0.00] [ 1859.406608] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
# 78.79 [+0.00] [ 1859.406616] n_tty_write (drivers/tty/n_tty.c:2378) 
# 78.79 [+0.00] [ 1859.406618] ? _copy_from_iter (./arch/x86/include/asm/uaccess_64.h:126 ./arch/x86/include/asm/uaccess_64.h:141 lib/iov_iter.c:55 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:300 ./include/linux/iov_iter.h:328 lib/iov_iter.c:249 lib/iov_iter.c:260) 
# 78.79 [+0.00] [ 1859.406635] ? n_tty_receive_signal_char (drivers/tty/n_tty.c:2348) 
# 78.79 [+0.00] [ 1859.406641] ? __init_waitqueue_head (kernel/sched/wait.c:458) 
# 78.79 [+0.00] [ 1859.406651] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
# 78.79 [+0.00] [ 1859.406654] ? iterate_tty_write (drivers/tty/tty_io.c:939 drivers/tty/tty_io.c:958) 
# 78.80 [+0.00] [ 1859.406669] iterate_tty_write (drivers/tty/tty_io.c:1007) 
# 78.80 [+0.00] [ 1859.406676] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
# 78.80 [+0.00] [ 1859.406683] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1081) 
# 78.80 [+0.00] [ 1859.406691] vfs_write (fs/read_write.c:594 fs/read_write.c:686) 
# 78.80 [+0.00] [ 1859.406703] ? find_held_lock (kernel/locking/lockdep.c:5350) 
# 78.80 [+0.00] [ 1859.406708] ? kernel_write (fs/read_write.c:667) 
# 78.80 [+0.00] [ 1859.406716] ? clockevents_program_event (kernel/time/clockevents.c:326) 
# 78.80 [+0.00] [ 1859.406733] ? clockevents_program_event (kernel/time/clockevents.c:336 (discriminator 3)) 
# 78.80 [+0.00] [ 1859.406740] ksys_write (fs/read_write.c:738) 
# 78.80 [+0.00] [ 1859.406745] ? __ia32_sys_read (fs/read_write.c:728) 
# 78.81 [+0.00] [ 1859.406757] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
# 78.81 [+0.00] [ 1859.406762] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 78.81 [+0.00] [ 1859.406765] RIP: 0033:0x7fbf4afdf337
# 78.81 [+0.00] [ 1859.406770] Code: 0f 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:	0f 00                	(bad)
   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
# 78.81 [+0.00] [ 1859.406773] RSP: 002b:00007ffc47992028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 78.81 [+0.00] [ 1859.406776] RAX: ffffffffffffffda RBX: 000055cdbd4223f0 RCX: 00007fbf4afdf337
# 78.82 [+0.00] [ 1859.406778] RDX: 0000000000000001 RSI: 000055cdbd4223f0 RDI: 0000000000000001
# 78.82 [+0.00] [ 1859.406779] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 78.82 [+0.00] [ 1859.406781] R10: 0000000000000001 R11: 0000000000000246 R12: 000055cdbd40d5e0
# 78.82 [+0.00] [ 1859.406783] R13: 000055cdbd3ee2a0 R14: 0000000000000001 R15: 000055cdbd40d5e0
| xx__-> echo $?
| 0
| xx__-> [ 1839.790456][T17571] Mirror/redirect action on
| [ 1859.405833][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 1859.406399][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1859.406405][    C0] Call Trace:
[ 1859.406409][    C0]  <IRQ>
[ 1859.406412][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1859.406445][ C0] __report_bad_irq (kernel/irq/spurious.c:170) 
[ 1859.406463][ C0] note_interrupt (kernel/irq/spurious.c:372) 
[ 1859.406470][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 1859.406479][ C0] handle_edge_irq (kernel/irq/chip.c:857) 
[ 1859.406489][ C0] __common_interrupt (./include/asm-generic/irq_regs.h:28 arch/x86/kernel/irq.c:328) 
[ 1859.406504][ C0] common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14)) 
[ 1859.406510][    C0]  </IRQ>
[ 1859.406512][    C0]  <TASK>
[ 1859.406515][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[ 1859.406525][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1859.406542][ C0] Code: 74 24 10 e8 31 2a 03 fe 48 89 ef e8 59 79 03 fe 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 9a ad f7 fd 65 8b 05 13 fc 0a 02 85 c0 74 0a 5b 5d c3 e8 d7 2e
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	31 2a                	xor    %ebp,(%rdx)
   6:	03 fe                	add    %esi,%edi
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 59 79 03 fe       	call   0xfffffffffe037969
  10:	81 e3 00 02 00 00    	and    $0x200,%ebx
  16:	75 25                	jne    0x3d
  18:	9c                   	pushf
  19:	58                   	pop    %rax
  1a:	f6 c4 02             	test   $0x2,%ah
  1d:	75 2d                	jne    0x4c
  1f:	48 85 db             	test   %rbx,%rbx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
  2a:*	e8 9a ad f7 fd       	call   0xfffffffffdf7adc9		<-- trapping instruction
  2f:	65 8b 05 13 fc 0a 02 	mov    %gs:0x20afc13(%rip),%eax        # 0x20afc49
  36:	85 c0                	test   %eax,%eax
  38:	74 0a                	je     0x44
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	c3                   	ret
  3d:	e8                   	.byte 0xe8
  3e:	d7                   	xlat   %ds:(%rbx)
  3f:	2e                   	cs

Code starting with the faulting instruction
===========================================
   0:	e8 9a ad f7 fd       	call   0xfffffffffdf7ad9f
   5:	65 8b 05 13 fc 0a 02 	mov    %gs:0x20afc13(%rip),%eax        # 0x20afc1f
   c:	85 c0                	test   %eax,%eax
   e:	74 0a                	je     0x1a
  10:	5b                   	pop    %rbx
  11:	5d                   	pop    %rbp
  12:	c3                   	ret
  13:	e8                   	.byte 0xe8
  14:	d7                   	xlat   %ds:(%rbx)
  15:	2e                   	cs
[ 1859.406545][    C0] RSP: 0018:ffffc9000b2afa98 EFLAGS: 00000206
[ 1859.406553][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000040
[ 1859.406555][    C0] RDX: 0000000000000000 RSI: ffffffffa05c5d73 RDI: 0000000000000001
[ 1859.406557][    C0] RBP: ffffffffa2e49300 R08: 0000000000000001 R09: 0000000000000001
[ 1859.406560][    C0] R10: ffffffffa1412817 R11: ffff888005e10970 R12: 00000000ffffffff
[ 1859.406562][    C0] R13: 0000000000000001 R14: ffffffffa2e49408 R15: 00000000ffffffff
[ 1859.406579][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:92 drivers/tty/serial/serial_core.c:88 drivers/tty/serial/serial_core.c:637) 
[ 1859.406598][ C0] process_output_block (drivers/tty/n_tty.c:561) 
[ 1859.406608][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1859.406616][ C0] n_tty_write (drivers/tty/n_tty.c:2378) 
[ 1859.406618][ C0] ? _copy_from_iter (./arch/x86/include/asm/uaccess_64.h:126 ./arch/x86/include/asm/uaccess_64.h:141 lib/iov_iter.c:55 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:300 ./include/linux/iov_iter.h:328 lib/iov_iter.c:249 lib/iov_iter.c:260) 
[ 1859.406635][ C0] ? n_tty_receive_signal_char (drivers/tty/n_tty.c:2348) 
[ 1859.406641][ C0] ? __init_waitqueue_head (kernel/sched/wait.c:458) 
[ 1859.406651][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
[ 1859.406654][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:939 drivers/tty/tty_io.c:958) 
[ 1859.406669][ C0] iterate_tty_write (drivers/tty/tty_io.c:1007) 
[ 1859.406676][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
[ 1859.406683][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1081) 
[ 1859.406691][ C0] vfs_write (fs/read_write.c:594 fs/read_write.c:686) 
[ 1859.406703][ C0] ? find_held_lock (kernel/locking/lockdep.c:5350) 
[ 1859.406708][ C0] ? kernel_write (fs/read_write.c:667) 
[ 1859.406716][ C0] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 1859.406733][ C0] ? clockevents_program_event (kernel/time/clockevents.c:336 (discriminator 3)) 
[ 1859.406740][ C0] ksys_write (fs/read_write.c:738) 
[ 1859.406745][ C0] ? __ia32_sys_read (fs/read_write.c:728) 
[ 1859.406757][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1859.406762][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1859.406765][    C0] RIP: 0033:0x7fbf4afdf337
[ 1859.406770][ C0] Code: 0f 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:	0f 00                	(bad)
   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
[ 1859.406773][    C0] RSP: 002b:00007ffc47992028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1859.406776][    C0] RAX: ffffffffffffffda RBX: 000055cdbd4223f0 RCX: 00007fbf4afdf337
[ 1859.406778][    C0] RDX: 0000000000000001 RSI: 000055cdbd4223f0 RDI: 0000000000000001
[ 1859.406779][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1859.406781][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 000055cdbd40d5e0


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