======================================
| # 87.71 [+0.00] [ 1920.637751] veth1: left allmulticast mode
| # 87.71 [+0.00] [ 1920.638083] veth1: left promiscuous mode
| # 87.71 [+0.00] [ 1920.638559] br1: port 1(veth1) entered disabled state
| # 87.71 [+0.00] [ 2025.220971] irq 51: nobody cared (try booting with the "irqpoll" option)
# 87.72 [+0.00] [ 2025.221813] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 87.72 [+0.00] [ 2025.221816] Call Trace:
# 87.72 [+0.00] [ 2025.221820]  <IRQ>
# 87.72 [+0.00] [ 2025.221824] dump_stack_lvl (lib/dump_stack.c:123) 
# 87.72 [+0.00] [ 2025.221839] __report_bad_irq (kernel/irq/spurious.c:170) 
# 87.73 [+0.01] [ 2025.221854] note_interrupt (kernel/irq/spurious.c:372) 
# 87.73 [+0.00] [ 2025.221867] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
# 87.73 [+0.00] [ 2025.221877] handle_edge_irq (kernel/irq/chip.c:857) 
# 87.73 [+0.00] [ 2025.221895] __common_interrupt (./include/asm-generic/irq_regs.h:28 arch/x86/kernel/irq.c:328) 
# 87.74 [+0.00] [ 2025.221906] common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14)) 
# 87.74 [+0.00] [ 2025.221913]  </IRQ>
# 87.74 [+0.00] [ 2025.221915]  <TASK>
# 87.74 [+0.00] [ 2025.221922] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
# 87.74 [+0.00] [ 2025.221930] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# 87.74 [+0.00] [ 2025.221940] Code: 74 24 10 e8 61 4b 03 fe 48 89 ef e8 89 9a 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 d0 f7 fd 65 8b 05 a3 2e 0b 02 85 c0 74 0a 5b 5d c3 e8 e7 4d
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	61                   	(bad)
   5:	4b 03 fe             	rex.WXB add %r14,%rdi
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 89 9a 03 fe       	call   0xfffffffffe039a99
  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 d0 f7 fd       	call   0xfffffffffdf7d079		<-- trapping instruction
  2f:	65 8b 05 a3 2e 0b 02 	mov    %gs:0x20b2ea3(%rip),%eax        # 0x20b2ed9
  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:	e7 4d                	out    %eax,$0x4d

Code starting with the faulting instruction
===========================================
   0:	e8 4a d0 f7 fd       	call   0xfffffffffdf7d04f
   5:	65 8b 05 a3 2e 0b 02 	mov    %gs:0x20b2ea3(%rip),%eax        # 0x20b2eaf
   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:	e7 4d                	out    %eax,$0x4d
# 87.74 [+0.00] [ 2025.221944] RSP: 0018:ffffc9000361fa98 EFLAGS: 00000206
# 87.75 [+0.00] [ 2025.221951] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000040
# 87.75 [+0.00] [ 2025.221953] RDX: 0000000000000000 RSI: ffffffff85bc63ac RDI: 0000000000000001
# 87.75 [+0.00] [ 2025.221956] RBP: ffffffff8844a380 R08: 0000000000000001 R09: 0000000000000001
# 87.75 [+0.00] [ 2025.221959] R10: ffffffff86a12f17 R11: ffff888005848970 R12: 00000000ffffffff
# 87.75 [+0.00] [ 2025.221962] R13: 0000000000000001 R14: ffffffff8844a488 R15: 00000000ffffffff
# 87.75 [+0.00] [ 2025.222000] 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) 
# 87.76 [+0.00] [ 2025.222016] process_output_block (drivers/tty/n_tty.c:561) 
# 87.76 [+0.00] [ 2025.222025] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
# 87.76 [+0.00] [ 2025.222038] n_tty_write (drivers/tty/n_tty.c:2378) 
# 87.76 [+0.00] [ 2025.222042] ? _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:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:249 lib/iov_iter.c:260) 
# 87.76 [+0.00] [ 2025.222060] ? n_tty_receive_signal_char (drivers/tty/n_tty.c:2348) 
# 87.76 [+0.00] [ 2025.222070] ? __init_waitqueue_head (kernel/sched/wait.c:458) 
# 87.76 [+0.00] [ 2025.222081] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
# 87.76 [+0.00] [ 2025.222085] ? iterate_tty_write (drivers/tty/tty_io.c:939 drivers/tty/tty_io.c:958) 
# 87.76 [+0.00] [ 2025.222102] iterate_tty_write (drivers/tty/tty_io.c:1007) 
# 87.77 [+0.00] [ 2025.222112] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
# 87.77 [+0.00] [ 2025.222124] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1081) 
# 87.77 [+0.00] [ 2025.222138] vfs_write (fs/read_write.c:594 fs/read_write.c:686) 
# 87.77 [+0.00] [ 2025.222149] ? find_held_lock (kernel/locking/lockdep.c:5350) 
# 87.77 [+0.00] [ 2025.222157] ? kernel_write (fs/read_write.c:667) 
# 87.77 [+0.00] [ 2025.222169] ? clockevents_program_event (kernel/time/clockevents.c:326) 
# 87.77 [+0.00] [ 2025.222188] ? clockevents_program_event (kernel/time/clockevents.c:336 (discriminator 3)) 
# 87.77 [+0.00] [ 2025.222201] ksys_write (fs/read_write.c:738) 
# 87.77 [+0.00] [ 2025.222209] ? __ia32_sys_read (fs/read_write.c:728) 
# 87.77 [+0.00] [ 2025.222230] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
# 87.78 [+0.00] [ 2025.222238] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# 87.78 [+0.00] [ 2025.222243] RIP: 0033:0x7f52f45f3337
# 87.78 [+0.00] [ 2025.222251] 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
# 87.78 [+0.00] [ 2025.222255] RSP: 002b:00007ffdab186c98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
# 87.78 [+0.00] [ 2025.222260] RAX: ffffffffffffffda RBX: 000055645f4af2e0 RCX: 00007f52f45f3337
# 87.79 [+0.00] [ 2025.222264] RDX: 0000000000000001 RSI: 000055645f4af2e0 RDI: 0000000000000001
# 87.79 [+0.00] [ 2025.222266] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
# 87.79 [+0.00] [ 2025.222269] R10: 0000000000000001 R11: 0000000000000246 R12: 000055645f49a600
# 87.79 [+0.00] [ 2025.222272] R13: 000055645f47b2a0 R14: 0000000000000001 R15: 000055645f49a600
| make: Leaving directory '/home/virtme/testing/wt-4/tools/testing/selftests'
| xx__-> echo $?
| 0
| xx__-> [ 2025.220971][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 2025.221813][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2025.221816][    C0] Call Trace:
[ 2025.221820][    C0]  <IRQ>
[ 2025.221824][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 2025.221839][ C0] __report_bad_irq (kernel/irq/spurious.c:170) 
[ 2025.221854][ C0] note_interrupt (kernel/irq/spurious.c:372) 
[ 2025.221867][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 2025.221877][ C0] handle_edge_irq (kernel/irq/chip.c:857) 
[ 2025.221895][ C0] __common_interrupt (./include/asm-generic/irq_regs.h:28 arch/x86/kernel/irq.c:328) 
[ 2025.221906][ C0] common_interrupt (arch/x86/kernel/irq.c:318 (discriminator 14)) 
[ 2025.221913][    C0]  </IRQ>
[ 2025.221915][    C0]  <TASK>
[ 2025.221922][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) 
[ 2025.221930][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 2025.221940][ C0] Code: 74 24 10 e8 61 4b 03 fe 48 89 ef e8 89 9a 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 d0 f7 fd 65 8b 05 a3 2e 0b 02 85 c0 74 0a 5b 5d c3 e8 e7 4d
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	61                   	(bad)
   5:	4b 03 fe             	rex.WXB add %r14,%rdi
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 89 9a 03 fe       	call   0xfffffffffe039a99
  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 d0 f7 fd       	call   0xfffffffffdf7d079		<-- trapping instruction
  2f:	65 8b 05 a3 2e 0b 02 	mov    %gs:0x20b2ea3(%rip),%eax        # 0x20b2ed9
  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:	e7 4d                	out    %eax,$0x4d

Code starting with the faulting instruction
===========================================
   0:	e8 4a d0 f7 fd       	call   0xfffffffffdf7d04f
   5:	65 8b 05 a3 2e 0b 02 	mov    %gs:0x20b2ea3(%rip),%eax        # 0x20b2eaf
   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:	e7 4d                	out    %eax,$0x4d
[ 2025.221944][    C0] RSP: 0018:ffffc9000361fa98 EFLAGS: 00000206
[ 2025.221951][    C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000040
[ 2025.221953][    C0] RDX: 0000000000000000 RSI: ffffffff85bc63ac RDI: 0000000000000001
[ 2025.221956][    C0] RBP: ffffffff8844a380 R08: 0000000000000001 R09: 0000000000000001
[ 2025.221959][    C0] R10: ffffffff86a12f17 R11: ffff888005848970 R12: 00000000ffffffff
[ 2025.221962][    C0] R13: 0000000000000001 R14: ffffffff8844a488 R15: 00000000ffffffff
[ 2025.222000][ 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) 
[ 2025.222016][ C0] process_output_block (drivers/tty/n_tty.c:561) 
[ 2025.222025][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 2025.222038][ C0] n_tty_write (drivers/tty/n_tty.c:2378) 
[ 2025.222042][ 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:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:249 lib/iov_iter.c:260) 
[ 2025.222060][ C0] ? n_tty_receive_signal_char (drivers/tty/n_tty.c:2348) 
[ 2025.222070][ C0] ? __init_waitqueue_head (kernel/sched/wait.c:458) 
[ 2025.222081][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) 
[ 2025.222085][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:939 drivers/tty/tty_io.c:958) 
[ 2025.222102][ C0] iterate_tty_write (drivers/tty/tty_io.c:1007) 
[ 2025.222112][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) 
[ 2025.222124][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1081) 
[ 2025.222138][ C0] vfs_write (fs/read_write.c:594 fs/read_write.c:686) 
[ 2025.222149][ C0] ? find_held_lock (kernel/locking/lockdep.c:5350) 
[ 2025.222157][ C0] ? kernel_write (fs/read_write.c:667) 
[ 2025.222169][ C0] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 2025.222188][ C0] ? clockevents_program_event (kernel/time/clockevents.c:336 (discriminator 3)) 
[ 2025.222201][ C0] ksys_write (fs/read_write.c:738) 
[ 2025.222209][ C0] ? __ia32_sys_read (fs/read_write.c:728) 
[ 2025.222230][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 2025.222238][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 2025.222243][    C0] RIP: 0033:0x7f52f45f3337
[ 2025.222251][ 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
[ 2025.222255][    C0] RSP: 002b:00007ffdab186c98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 2025.222260][    C0] RAX: ffffffffffffffda RBX: 000055645f4af2e0 RCX: 00007f52f45f3337
[ 2025.222264][    C0] RDX: 0000000000000001 RSI: 000055645f4af2e0 RDI: 0000000000000001
[ 2025.222266][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 2025.222269][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 000055645f49a600


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