======================================
| make: Leaving directory '/srv/vmksft/testing/wt-21/tools/testing/selftests'
| xx__-> echo $?
| 0
| xx__-> [  671.990945] irq 52: nobody cared (try booting with the "irqpoll" option)
[  671.991023] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  671.991024] Call Trace:
[  671.991028]  <IRQ>
[  671.991030]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  671.991037]  __report_bad_irq (kernel/irq/spurious.c:161)
[  671.991040]  note_interrupt.cold (kernel/irq/spurious.c:368)
[  671.991042]  ? add_interrupt_randomness (drivers/char/random.c:1107 (discriminator 1))
[  671.991046]  handle_irq_event (kernel/irq/handle.c:251 kernel/irq/handle.c:263)
[  671.991050]  handle_edge_irq (kernel/irq/chip.c:859)
[  671.991052]  __common_interrupt (./include/linux/irqdesc.h:188 arch/x86/kernel/irq.c:209 arch/x86/kernel/irq.c:265 arch/x86/kernel/irq.c:280)
[  671.991056]  ? __sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1051 arch/x86/kernel/apic/apic.c:1068)
[  671.991059]  common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 39))
[  671.991063]  </IRQ>
[  671.991063]  <TASK>
[  671.991064]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:665)
[  671.991066] RIP: 0010:_raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:123 (discriminator 2) ./include/linux/spinlock_api_smp.h:211 (discriminator 2) kernel/locking/spinlock.c:221 (discriminator 2))
[  671.991069] Code: 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 48 ff 0d db b8 2c 01 <74> 01 c3 e8 4b c1 32 ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e
All code
========
   0:	00 90 66 66 2e 0f    	add    %dl,0xf2e6666(%rax)
   6:	1f                   	(bad)
   7:	84 00                	test   %al,(%rax)
   9:	00 00                	add    %al,(%rax)
   b:	00 00                	add    %al,(%rax)
   d:	f3 0f 1e fa          	endbr64
  11:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  16:	c6 07 00             	movb   $0x0,(%rdi)
  19:	f7 c6 00 02 00 00    	test   $0x200,%esi
  1f:	74 01                	je     0x22
  21:	fb                   	sti
  22:	65 48 ff 0d db b8 2c 	decq   %gs:0x12cb8db(%rip)        # 0x12cb905
  29:	01 
  2a:*	74 01                	je     0x2d		<-- trapping instruction
  2c:	c3                   	ret
  2d:	e8 4b c1 32 ff       	call   0xffffffffff32c17d
  32:	c3                   	ret
  33:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  3a:	00 00 00 
  3d:	f3                   	repz
  3e:	0f                   	.byte 0xf
  3f:	1e                   	(bad)

Code starting with the faulting instruction
===========================================
   0:	74 01                	je     0x3
   2:	c3                   	ret
   3:	e8 4b c1 32 ff       	call   0xffffffffff32c153
   8:	c3                   	ret
   9:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  10:	00 00 00 
  13:	f3                   	repz
  14:	0f                   	.byte 0xf
  15:	1e                   	(bad)
[  671.991071] RSP: 0018:ff4175b00748bd40 EFLAGS: 00000286
[  671.991073] RAX: 00000000ffffffff RBX: ff30a13f02010000 RCX: 0000000000000017
[  671.991074] RDX: ffffffffa38c8d83 RSI: 0000000000000282 RDI: ffffffffa50a0920
[  671.991075] RBP: 0000000000000001 R08: 0000009c6fff5ee1 R09: 0000000000148006
[  671.991076] R10: ff4175b00748be68 R11: 0000000000000001 R12: ffffffffa50a0920
[  671.991076] R13: ff4175b00032f2a0 R14: ff30a13f0106c400 R15: 0000000000000282
[  671.991077]  ? rpm_suspend (drivers/base/power/runtime.c:741 (discriminator 2))
[  671.991082]  uart_write (./include/linux/spinlock.h:425 (discriminator 3) ./include/linux/serial_core.h:794 (discriminator 3) drivers/tty/serial/serial_core.c:92 (discriminator 3) drivers/tty/serial/serial_core.c:89 (discriminator 3) drivers/tty/serial/serial_core.c:631 (discriminator 3))
[  671.991084]  n_tty_write (drivers/tty/n_tty.c:557 drivers/tty/n_tty.c:2366)
[  671.991087]  ? swake_up_all (kernel/sched/swait.c:82)
[  671.991099]  file_tty_write.isra.0 (drivers/tty/tty_io.c:1006 drivers/tty/tty_io.c:1054)
[  671.991101]  vfs_write (fs/read_write.c:595 fs/read_write.c:687)
[  671.991106]  ksys_write (fs/read_write.c:739)
[  671.991108]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  671.991110]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  671.991112] RIP: 0033:0x7f672eb4c56e
[  671.991114] Code: 4d 89 d8 e8 d4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 d4 bd 00 00       	call   0xbddc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  671.991115] RSP: 002b:00007ffcbb24c870 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  671.991117] RAX: ffffffffffffffda RBX: 000055d2e82e7550 RCX: 00007f672eb4c56e
[  671.991117] RDX: 0000000000000001 RSI: 000055d2e82e7550 RDI: 0000000000000001
[  671.991118] RBP: 00007ffcbb24c880 R08: 0000000000000000 R09: 0000000000000000
[  671.991118] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001


Finger prints:
__report_bad_irq:handle_irq_event:handle_edge_irq:__common_interrupt:common_interrupt