======================================
| # 84.18 [+0.00] [  898.521451] 8021q: 802.1Q VLAN Support v1.8
| # 84.18 [+0.00] [ 1167.098829] Mirror/redirect action on
| # 84.18 [+0.00] [ 1285.794118] tc (20053) used greatest stack depth: 23608 bytes left
| # 84.18 [+0.00] [ 1310.759336] irq 51: nobody cared (try booting with the "irqpoll" option)
# 84.18 [+0.00] [ 1310.759903] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 84.19 [+0.00] [ 1310.759905] Call Trace:
# 84.19 [+0.00] [ 1310.759908]  <IRQ>
# 84.19 [+0.00] [ 1310.759910] dump_stack_lvl (lib/dump_stack.c:123) 
# 84.19 [+0.00] [ 1310.759924] __report_bad_irq (kernel/irq/spurious.c:170) 
# 84.19 [+0.00] [ 1310.759934] note_interrupt (kernel/irq/spurious.c:372) 
# 84.19 [+0.00] [ 1310.759941] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 84.19 [+0.00] [ 1310.759950] handle_edge_irq (kernel/irq/chip.c:857) 
# 84.19 [+0.00] [ 1310.759970] __common_interrupt (./include/asm-generic/irq_regs.h:28 arch/x86/kernel/irq.c:328) 
# 84.19 [+0.00] [ 1310.759979] common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14)) 
# 84.20 [+0.00] [ 1310.759985]  </IRQ>
# 84.20 [+0.00] [ 1310.759986]  <TASK>
# 84.20 [+0.00] [ 1310.759990] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 84.20 [+0.00] [ 1310.759994] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 84.20 [+0.00] [ 1310.760002] Code: 74 24 10 e8 61 9b 03 fe 48 89 ef e8 89 ea 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> 4a 20 f8 fd 65 8b 05 a3 6e 0b 02 85 c0 74 0a 5b 5d c3 e8 07 a0
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	61                   	(bad)
   5:	9b                   	fwait
   6:	03 fe                	add    %esi,%edi
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 89 ea 03 fe       	call   0xfffffffffe03ea99
  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 4a 20 f8 fd       	call   0xfffffffffdf82079		<-- trapping instruction
  2f:	65 8b 05 a3 6e 0b 02 	mov    %gs:0x20b6ea3(%rip),%eax        # 0x20b6ed9
  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:	07                   	(bad)
  3f:	a0                   	.byte 0xa0

Code starting with the faulting instruction
===========================================
   0:	e8 4a 20 f8 fd       	call   0xfffffffffdf8204f
   5:	65 8b 05 a3 6e 0b 02 	mov    %gs:0x20b6ea3(%rip),%eax        # 0x20b6eaf
   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:	07                   	(bad)
  15:	a0                   	.byte 0xa0
# 84.21 [+0.01] [ 1310.760006] RSP: 0018:ffffc900014a7a98 EFLAGS: 00000206
# 84.22 [+0.01] [ 1310.760010] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000040
# 84.22 [+0.00] [ 1310.760012] RDX: 0000000000000000 RSI: ffffffff9b5c5aab RDI: 0000000000000001
# 84.23 [+0.00] [ 1310.760014] RBP: ffffffff9de49300 R08: 0000000000000001 R09: 0000000000000001
# 84.23 [+0.00] [ 1310.760016] R10: ffffffff9c411b17 R11: ffff888005e40970 R12: 00000000ffffffff
# 84.23 [+0.00] [ 1310.760018] R13: 0000000000000001 R14: ffffffff9de49408 R15: 00000000ffffffff
# 84.23 [+0.00] [ 1310.760035] 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) 
# 84.23 [+0.00] [ 1310.760047] process_output_block (drivers/tty/n_tty.c:561) 
# 84.23 [+0.00] [ 1310.760053] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
# 84.23 [+0.00] [ 1310.760060] n_tty_write (drivers/tty/n_tty.c:2378) 
# 84.24 [+0.00] [ 1310.760063] ? _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) 
# 84.24 [+0.00] [ 1310.760074] ? n_tty_receive_signal_char (drivers/tty/n_tty.c:2348) 
# 84.24 [+0.00] [ 1310.760080] ? __init_waitqueue_head (kernel/sched/wait.c:458) 
# 84.24 [+0.00] [ 1310.760088] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
# 84.24 [+0.00] [ 1310.760091] ? iterate_tty_write (drivers/tty/tty_io.c:939 drivers/tty/tty_io.c:958) 
# 84.24 [+0.00] [ 1310.760104] iterate_tty_write (drivers/tty/tty_io.c:1007) 
# 84.24 [+0.00] [ 1310.760111] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
# 84.24 [+0.00] [ 1310.760118] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1081) 
# 84.24 [+0.00] [ 1310.760126] vfs_write (fs/read_write.c:594 fs/read_write.c:686) 
# 84.25 [+0.00] [ 1310.760133] ? find_held_lock (kernel/locking/lockdep.c:5350) 
# 84.25 [+0.00] [ 1310.760138] ? kernel_write (fs/read_write.c:667) 
# 84.25 [+0.00] [ 1310.760146] ? clockevents_program_event (kernel/time/clockevents.c:326) 
# 84.25 [+0.00] [ 1310.760158] ? clockevents_program_event (kernel/time/clockevents.c:336 (discriminator 3)) 
# 84.25 [+0.00] [ 1310.760165] ksys_write (fs/read_write.c:738) 
# 84.25 [+0.00] [ 1310.760169] ? __ia32_sys_read (fs/read_write.c:728) 
# 84.25 [+0.00] [ 1310.760180] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
# 84.25 [+0.00] [ 1310.760185] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 84.25 [+0.00] [ 1310.760188] RIP: 0033:0x7f5df8ffb337
# 84.25 [+0.00] [ 1310.760193] 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
# 84.26 [+0.00] [ 1310.760195] RSP: 002b:00007ffc93cfab48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 84.26 [+0.00] [ 1310.760199] RAX: ffffffffffffffda RBX: 0000560d597b3420 RCX: 00007f5df8ffb337
# 84.26 [+0.00] [ 1310.760201] RDX: 0000000000000001 RSI: 0000560d597b3420 RDI: 0000000000000001
# 84.26 [+0.00] [ 1310.760203] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 84.27 [+0.00] [ 1310.760204] R10: 0000000000000001 R11: 0000000000000246 R12: 0000560d5979e600
# 84.27 [+0.00] [ 1310.760206] R13: 0000560d5977f2a0 R14: 0000000000000001 R15: 0000560d5979e600
| xx__-> echo $?
| 0
| xx__-> [ 1285.794118][T20053] tc (20053) used greatest stack depth: 23608 bytes left
| [ 1310.759336][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 1310.759903][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1310.759905][    C0] Call Trace:
[ 1310.759908][    C0]  <IRQ>
[ 1310.759910][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1310.759924][ C0] __report_bad_irq (kernel/irq/spurious.c:170) 
[ 1310.759934][ C0] note_interrupt (kernel/irq/spurious.c:372) 
[ 1310.759941][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 1310.759950][ C0] handle_edge_irq (kernel/irq/chip.c:857) 
[ 1310.759970][ C0] __common_interrupt (./include/asm-generic/irq_regs.h:28 arch/x86/kernel/irq.c:328) 
[ 1310.759979][ C0] common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14)) 
[ 1310.759985][    C0]  </IRQ>
[ 1310.759986][    C0]  <TASK>
[ 1310.759990][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[ 1310.759994][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1310.760002][ C0] Code: 74 24 10 e8 61 9b 03 fe 48 89 ef e8 89 ea 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> 4a 20 f8 fd 65 8b 05 a3 6e 0b 02 85 c0 74 0a 5b 5d c3 e8 07 a0
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	61                   	(bad)
   5:	9b                   	fwait
   6:	03 fe                	add    %esi,%edi
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 89 ea 03 fe       	call   0xfffffffffe03ea99
  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 4a 20 f8 fd       	call   0xfffffffffdf82079		<-- trapping instruction
  2f:	65 8b 05 a3 6e 0b 02 	mov    %gs:0x20b6ea3(%rip),%eax        # 0x20b6ed9
  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:	07                   	(bad)
  3f:	a0                   	.byte 0xa0

Code starting with the faulting instruction
===========================================
   0:	e8 4a 20 f8 fd       	call   0xfffffffffdf8204f
   5:	65 8b 05 a3 6e 0b 02 	mov    %gs:0x20b6ea3(%rip),%eax        # 0x20b6eaf
   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:	07                   	(bad)
  15:	a0                   	.byte 0xa0
[ 1310.760006][    C0] RSP: 0018:ffffc900014a7a98 EFLAGS: 00000206
[ 1310.760010][    C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000040
[ 1310.760012][    C0] RDX: 0000000000000000 RSI: ffffffff9b5c5aab RDI: 0000000000000001
[ 1310.760014][    C0] RBP: ffffffff9de49300 R08: 0000000000000001 R09: 0000000000000001
[ 1310.760016][    C0] R10: ffffffff9c411b17 R11: ffff888005e40970 R12: 00000000ffffffff
[ 1310.760018][    C0] R13: 0000000000000001 R14: ffffffff9de49408 R15: 00000000ffffffff
[ 1310.760035][ 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) 
[ 1310.760047][ C0] process_output_block (drivers/tty/n_tty.c:561) 
[ 1310.760053][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1310.760060][ C0] n_tty_write (drivers/tty/n_tty.c:2378) 
[ 1310.760063][ 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) 
[ 1310.760074][ C0] ? n_tty_receive_signal_char (drivers/tty/n_tty.c:2348) 
[ 1310.760080][ C0] ? __init_waitqueue_head (kernel/sched/wait.c:458) 
[ 1310.760088][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
[ 1310.760091][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:939 drivers/tty/tty_io.c:958) 
[ 1310.760104][ C0] iterate_tty_write (drivers/tty/tty_io.c:1007) 
[ 1310.760111][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
[ 1310.760118][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1081) 
[ 1310.760126][ C0] vfs_write (fs/read_write.c:594 fs/read_write.c:686) 
[ 1310.760133][ C0] ? find_held_lock (kernel/locking/lockdep.c:5350) 
[ 1310.760138][ C0] ? kernel_write (fs/read_write.c:667) 
[ 1310.760146][ C0] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 1310.760158][ C0] ? clockevents_program_event (kernel/time/clockevents.c:336 (discriminator 3)) 
[ 1310.760165][ C0] ksys_write (fs/read_write.c:738) 
[ 1310.760169][ C0] ? __ia32_sys_read (fs/read_write.c:728) 
[ 1310.760180][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1310.760185][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1310.760188][    C0] RIP: 0033:0x7f5df8ffb337
[ 1310.760193][ 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
[ 1310.760195][    C0] RSP: 002b:00007ffc93cfab48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1310.760199][    C0] RAX: ffffffffffffffda RBX: 0000560d597b3420 RCX: 00007f5df8ffb337
[ 1310.760201][    C0] RDX: 0000000000000001 RSI: 0000560d597b3420 RDI: 0000000000000001
[ 1310.760203][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1310.760204][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 0000560d5979e600


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