======================================
| # 195.18 [+0.01] [  544.431924] [    C0] hardirqs last  enabled at (111540): irqentry_exit (kernel/entry/common.c:243)
| # 195.19 [+0.01] [  544.431937] [    C0] hardirqs last disabled at (111541): sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1056)
| # 195.21 [+0.01] [  544.431941] [    C0] softirqs last  enabled at (8230): handle_softirqs (kernel/softirq.c:469 (discriminator 2) kernel/softirq.c:650 (discriminator 2))
| # 195.22 [+0.01] [  544.431947] [    C0] softirqs last disabled at (8381): irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
# 195.24 [+0.01] [  544.431960] [    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 195.25 [+0.01] [  544.431963] [    C0] Stopper: 0x0 <- 0x0
# 195.25 [+0.00] [  544.431971] [    C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 kernel/locking/spinlock.c:194)
# 195.26 [+0.01] [  544.431976] [    C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 61 5a de fd 48 89 df e8 c9 ab de fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 70 e3 d1 fd 65 8b 05 d9 4c 05 02 85 c0 74 12 5b
All code
========
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 61 5a de fd       	call   0xfffffffffdde5a74
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 c9 ab de fd       	call   0xfffffffffddeabe4
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 1f                	jne    0x42
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 2f                	jne    0x59
  2a:*	bf 01 00 00 00       	mov    $0x1,%edi		<-- trapping instruction
  2f:	e8 70 e3 d1 fd       	call   0xfffffffffdd1e3a4
  34:	65 8b 05 d9 4c 05 02 	mov    %gs:0x2054cd9(%rip),%eax        # 0x2054d14
  3b:	85 c0                	test   %eax,%eax
  3d:	74 12                	je     0x51
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	bf 01 00 00 00       	mov    $0x1,%edi
   5:	e8 70 e3 d1 fd       	call   0xfffffffffdd1e37a
   a:	65 8b 05 d9 4c 05 02 	mov    %gs:0x2054cd9(%rip),%eax        # 0x2054cea
  11:	85 c0                	test   %eax,%eax
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
# 195.28 [+0.02] [  544.431980] [    C0] RSP: 0018:ffa0000000007f00 EFLAGS: 00000246
# 195.29 [+0.01] [  544.431983] [    C0] RAX: 0000000000000082 RBX: ffffffff8918b1d8 RCX: ffffffff88304363
# 195.30 [+0.01] [  544.431985] [    C0] RDX: ff11000001b4c4c0 RSI: ffffffff88bb93e0 RDI: ffffffff8866a980
# 195.31 [+0.01] [  544.431988] [    C0] RBP: 0000000000000282 R08: 0000000000000000 R09: 0000000000000001
# 195.32 [+0.01] [  544.431989] [    C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89189880
# 195.33 [+0.01] [  544.431991] [    C0] R13: 0000000000000009 R14: 0000000000000002 R15: 0000000000000000
# 195.34 [+0.01] [  544.431996] [    C0] FS:  0000000000000000(0000) GS:ff110000aaec7000(0000) knlGS:0000000000000000
# 195.35 [+0.01] [  544.432001] [    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
# 195.36 [+0.01] [  544.432003] [    C0] CR2: 0000559d456fe008 CR3: 0000000019087004 CR4: 0000000000771ef0
# 195.36 [+0.01] [  544.432005] [    C0] PKRU: 55555554
# 195.37 [+0.00] [  544.432006] [    C0] Call Trace:
# 195.37 [+0.00] [  544.432011] [    C0]  <IRQ>
# 195.38 [+0.00] [  544.432017] [    C0]  rcu_core (kernel/rcu/rcu.h:138 (discriminator 2) kernel/rcu/tree.c:222 (discriminator 2) kernel/rcu/tree.c:2857 (discriminator 2))
# 195.38 [+0.01] [  544.432025] [    C0]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
# 195.39 [+0.01] [  544.432033] [    C0]  ? _local_bh_enable (kernel/softirq.c:580)
# 195.39 [+0.01] [  544.432036] [    C0]  ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
# 195.40 [+0.01] [  544.432044] [    C0]  irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
# 195.41 [+0.01] [  544.432046] [    C0]  common_interrupt (arch/x86/kernel/irq.c:326 (discriminator 49))
# 195.41 [+0.01] [  544.432051] [    C0]  </IRQ>
# 195.41 [+0.00] [  544.432052] [    C0]  <TASK>
# 195.42 [+0.00] [  544.432055] [    C0]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688)
# 195.42 [+0.01] [  544.432060] [    C0] RIP: 0010:finish_task_switch.isra.0 (./arch/x86/include/asm/jump_label.h:37 kernel/sched/core.c:4849 kernel/sched/core.c:5162)
# 195.43 [+0.01] [  544.432065] [    C0] Code: b8 01 00 00 00 49 8d 7f 60 31 f6 e8 29 eb 0a 00 31 f6 4c 89 ff e8 bf f9 ff ff 49 8d 7f 48 e8 76 94 2c 02 e8 51 78 30 00 fb 58 <66> 90 4d 85 f6 74 46 49 8d bd f0 04 00 00 48 b8 00 00 00 00 00 fc
All code
========
   0:	b8 01 00 00 00       	mov    $0x1,%eax
   5:	49 8d 7f 60          	lea    0x60(%r15),%rdi
   9:	31 f6                	xor    %esi,%esi
   b:	e8 29 eb 0a 00       	call   0xaeb39
  10:	31 f6                	xor    %esi,%esi
  12:	4c 89 ff             	mov    %r15,%rdi
  15:	e8 bf f9 ff ff       	call   0xfffffffffffff9d9
  1a:	49 8d 7f 48          	lea    0x48(%r15),%rdi
  1e:	e8 76 94 2c 02       	call   0x22c9499
  23:	e8 51 78 30 00       	call   0x307879
  28:	fb                   	sti
  29:	58                   	pop    %rax
  2a:*	66 90                	xchg   %ax,%ax		<-- trapping instruction
  2c:	4d 85 f6             	test   %r14,%r14
  2f:	74 46                	je     0x77
  31:	49 8d bd f0 04 00 00 	lea    0x4f0(%r13),%rdi
  38:	48                   	rex.W
  39:	b8 00 00 00 00       	mov    $0x0,%eax
  3e:	00 fc                	add    %bh,%ah

Code starting with the faulting instruction
===========================================
   0:	66 90                	xchg   %ax,%ax
   2:	4d 85 f6             	test   %r14,%r14
   5:	74 46                	je     0x4d
   7:	49 8d bd f0 04 00 00 	lea    0x4f0(%r13),%rdi
   e:	48                   	rex.W
   f:	b8 00 00 00 00       	mov    $0x0,%eax
  14:	00 fc                	add    %bh,%ah
# 195.46 [+0.02] [  544.432067] [    C0] RSP: 0018:ffa0000000127cb8 EFLAGS: 00000282
# 195.46 [+0.01] [  544.432069] [    C0] RAX: ffffffff8603ad85 RBX: ff11000001b4c4c0 RCX: ffffffff8603adbf
# 195.47 [+0.01] [  544.432071] [    C0] RDX: ff11000001b4c4c0 RSI: ffffffff88bb93e0 RDI: ffffffff8866a980
# 195.48 [+0.01] [  544.432073] [    C0] RBP: ffa0000000127cf8 R08: 0000000000000000 R09: 0000000000000001
# 195.49 [+0.01] [  544.432074] [    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff11000001ae2280
# 195.50 [+0.01] [  544.432076] [    C0] R13: ff11000001b4c4c0 R14: 0000000000000000 R15: ff11000035237500
# 195.51 [+0.01] [  544.432082] [    C0]  ? finish_task_switch.isra.0 (kernel/sched/core.c:4910 (discriminator 5) kernel/sched/core.c:5148 (discriminator 5))
# 195.52 [+0.01] [  544.432085] [    C0]  ? finish_task_switch.isra.0 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/sched/sched.h:1629 kernel/sched/core.c:5032 kernel/sched/core.c:5150)
# 195.52 [+0.01] [  544.432094] [    C0]  ? finish_task_switch.isra.0 (kernel/sched/core.c:4910 (discriminator 5) kernel/sched/core.c:5148 (discriminator 5))
# 195.53 [+0.01] [  544.432101] [    C0]  __schedule (kernel/sched/core.c:5298)
# 195.54 [+0.01] [  544.432109] [    C0]  ? io_schedule_timeout (kernel/sched/core.c:6762)
# 195.54 [+0.01] [  544.432115] [    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
# 195.55 [+0.01] [  544.432123] [    C0]  schedule (kernel/sched/core.c:6990 kernel/sched/core.c:7004)
# 195.55 [+0.01] [  544.432127] [    C0]  smpboot_thread_fn (kernel/smpboot.c:156)
# 195.56 [+0.01] [  544.432135] [    C0]  ? sort_range (kernel/smpboot.c:103)
# 195.57 [+0.01] [  544.432138] [    C0]  kthread (kernel/kthread.c:467)
# 195.57 [+0.01] [  544.432143] [    C0]  ? kthread_affine_node (kernel/kthread.c:412)
# 195.58 [+0.01] [  544.432148] [    C0]  ret_from_fork (arch/x86/kernel/process.c:164)
# 195.58 [+0.01] [  544.432154] [    C0]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
# 195.59 [+0.01] [  544.432160] [    C0]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
# 195.60 [+0.01] [  544.432164] [    C0]  ? kthread_affine_node (kernel/kthread.c:412)
# 195.60 [+0.01] [  544.432169] [    C0]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [  544.431924][    C0] hardirqs last  enabled at (111540): irqentry_exit (kernel/entry/common.c:243)
| [  544.431937][    C0] hardirqs last disabled at (111541): sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1056)
| [  544.431941][    C0] softirqs last  enabled at (8230): handle_softirqs (kernel/softirq.c:469 (discriminator 2) kernel/softirq.c:650 (discriminator 2))
| [  544.431947][    C0] softirqs last disabled at (8381): irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
[  544.431960][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  544.431963][    C0] Stopper: 0x0 <- 0x0
[  544.431971][    C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 kernel/locking/spinlock.c:194)
[  544.431976][    C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 61 5a de fd 48 89 df e8 c9 ab de fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 70 e3 d1 fd 65 8b 05 d9 4c 05 02 85 c0 74 12 5b
All code
========
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 61 5a de fd       	call   0xfffffffffdde5a74
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 c9 ab de fd       	call   0xfffffffffddeabe4
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 1f                	jne    0x42
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 2f                	jne    0x59
  2a:*	bf 01 00 00 00       	mov    $0x1,%edi		<-- trapping instruction
  2f:	e8 70 e3 d1 fd       	call   0xfffffffffdd1e3a4
  34:	65 8b 05 d9 4c 05 02 	mov    %gs:0x2054cd9(%rip),%eax        # 0x2054d14
  3b:	85 c0                	test   %eax,%eax
  3d:	74 12                	je     0x51
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	bf 01 00 00 00       	mov    $0x1,%edi
   5:	e8 70 e3 d1 fd       	call   0xfffffffffdd1e37a
   a:	65 8b 05 d9 4c 05 02 	mov    %gs:0x2054cd9(%rip),%eax        # 0x2054cea
  11:	85 c0                	test   %eax,%eax
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
[  544.431980][    C0] RSP: 0018:ffa0000000007f00 EFLAGS: 00000246
[  544.431983][    C0] RAX: 0000000000000082 RBX: ffffffff8918b1d8 RCX: ffffffff88304363
[  544.431985][    C0] RDX: ff11000001b4c4c0 RSI: ffffffff88bb93e0 RDI: ffffffff8866a980
[  544.431988][    C0] RBP: 0000000000000282 R08: 0000000000000000 R09: 0000000000000001
[  544.431989][    C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89189880
[  544.431991][    C0] R13: 0000000000000009 R14: 0000000000000002 R15: 0000000000000000
[  544.431996][    C0] FS:  0000000000000000(0000) GS:ff110000aaec7000(0000) knlGS:0000000000000000
[  544.432001][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  544.432003][    C0] CR2: 0000559d456fe008 CR3: 0000000019087004 CR4: 0000000000771ef0
[  544.432005][    C0] PKRU: 55555554
[  544.432006][    C0] Call Trace:
[  544.432011][    C0]  <IRQ>
[  544.432017][    C0]  rcu_core (kernel/rcu/rcu.h:138 (discriminator 2) kernel/rcu/tree.c:222 (discriminator 2) kernel/rcu/tree.c:2857 (discriminator 2))
[  544.432025][    C0]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[  544.432033][    C0]  ? _local_bh_enable (kernel/softirq.c:580)
[  544.432036][    C0]  ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  544.432044][    C0]  irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
[  544.432046][    C0]  common_interrupt (arch/x86/kernel/irq.c:326 (discriminator 49))
[  544.432051][    C0]  </IRQ>
[  544.432052][    C0]  <TASK>
[  544.432055][    C0]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688)
[  544.432060][    C0] RIP: 0010:finish_task_switch.isra.0 (./arch/x86/include/asm/jump_label.h:37 kernel/sched/core.c:4849 kernel/sched/core.c:5162)
[  544.432065][    C0] Code: b8 01 00 00 00 49 8d 7f 60 31 f6 e8 29 eb 0a 00 31 f6 4c 89 ff e8 bf f9 ff ff 49 8d 7f 48 e8 76 94 2c 02 e8 51 78 30 00 fb 58 <66> 90 4d 85 f6 74 46 49 8d bd f0 04 00 00 48 b8 00 00 00 00 00 fc
All code
========
   0:	b8 01 00 00 00       	mov    $0x1,%eax
   5:	49 8d 7f 60          	lea    0x60(%r15),%rdi
   9:	31 f6                	xor    %esi,%esi
   b:	e8 29 eb 0a 00       	call   0xaeb39
  10:	31 f6                	xor    %esi,%esi
  12:	4c 89 ff             	mov    %r15,%rdi
  15:	e8 bf f9 ff ff       	call   0xfffffffffffff9d9
  1a:	49 8d 7f 48          	lea    0x48(%r15),%rdi
  1e:	e8 76 94 2c 02       	call   0x22c9499
  23:	e8 51 78 30 00       	call   0x307879
  28:	fb                   	sti
  29:	58                   	pop    %rax
  2a:*	66 90                	xchg   %ax,%ax		<-- trapping instruction
  2c:	4d 85 f6             	test   %r14,%r14
  2f:	74 46                	je     0x77
  31:	49 8d bd f0 04 00 00 	lea    0x4f0(%r13),%rdi
  38:	48                   	rex.W
  39:	b8 00 00 00 00       	mov    $0x0,%eax
  3e:	00 fc                	add    %bh,%ah

Code starting with the faulting instruction
===========================================
   0:	66 90                	xchg   %ax,%ax
   2:	4d 85 f6             	test   %r14,%r14
   5:	74 46                	je     0x4d
   7:	49 8d bd f0 04 00 00 	lea    0x4f0(%r13),%rdi
   e:	48                   	rex.W
   f:	b8 00 00 00 00       	mov    $0x0,%eax
  14:	00 fc                	add    %bh,%ah
[  544.432067][    C0] RSP: 0018:ffa0000000127cb8 EFLAGS: 00000282
[  544.432069][    C0] RAX: ffffffff8603ad85 RBX: ff11000001b4c4c0 RCX: ffffffff8603adbf
[  544.432071][    C0] RDX: ff11000001b4c4c0 RSI: ffffffff88bb93e0 RDI: ffffffff8866a980
[  544.432073][    C0] RBP: ffa0000000127cf8 R08: 0000000000000000 R09: 0000000000000001
[  544.432074][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff11000001ae2280
[  544.432076][    C0] R13: ff11000001b4c4c0 R14: 0000000000000000 R15: ff11000035237500
[  544.432082][    C0]  ? finish_task_switch.isra.0 (kernel/sched/core.c:4910 (discriminator 5) kernel/sched/core.c:5148 (discriminator 5))
[  544.432085][    C0]  ? finish_task_switch.isra.0 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/sched/sched.h:1629 kernel/sched/core.c:5032 kernel/sched/core.c:5150)
[  544.432094][    C0]  ? finish_task_switch.isra.0 (kernel/sched/core.c:4910 (discriminator 5) kernel/sched/core.c:5148 (discriminator 5))
[  544.432101][    C0]  __schedule (kernel/sched/core.c:5298)
[  544.432109][    C0]  ? io_schedule_timeout (kernel/sched/core.c:6762)
[  544.432115][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  544.432123][    C0]  schedule (kernel/sched/core.c:6990 kernel/sched/core.c:7004)
[  544.432127][    C0]  smpboot_thread_fn (kernel/smpboot.c:156)
[  544.432135][    C0]  ? sort_range (kernel/smpboot.c:103)
[  544.432138][    C0]  kthread (kernel/kthread.c:467)
[  544.432143][    C0]  ? kthread_affine_node (kernel/kthread.c:412)
[  544.432148][    C0]  ret_from_fork (arch/x86/kernel/process.c:164)
[  544.432154][    C0]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  544.432160][    C0]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[  544.432164][    C0]  ? kthread_affine_node (kernel/kthread.c:412)


Finger prints:
irqentry_exit:sysvec_apic_timer_interrupt:handle_softirqs:irq_exit_rcu:_raw_spin_unlock_irqrestore