======================================
| # 87.23 [+0.00] [  644.408005] [    C0] hardirqs last  enabled at (617806): irqentry_exit (kernel/entry/common.c:220)
| # 87.23 [+0.00] [  644.408013] [    C0] hardirqs last disabled at (617807): sysvec_apic_timer_interrupt (./arch/x86/include/asm/hardirq.h:78 arch/x86/kernel/apic/apic.c:1056)
| # 87.24 [+0.00] [  644.408015] [    C0] softirqs last  enabled at (92644): handle_softirqs (kernel/softirq.c:469 (discriminator 2) kernel/softirq.c:650 (discriminator 2))
| # 87.24 [+0.00] [  644.408020] [    C0] softirqs last disabled at (92661): irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
# 87.25 [+0.00] [  644.408029] [    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 87.25 [+0.00] [  644.408031] [    C0] Stopper: softlockup_fn+0x0/0xc0 <- watchdog_timer_fn (kernel/watchdog.c:775 (discriminator 1))
# 87.25 [+0.00] [  644.408036] [    C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
# 87.25 [+0.00] [  644.408040] [    C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 21 82 e3 fd 48 89 df e8 c9 cd e3 fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 30 5b d7 fd 65 8b 05 d9 c1 09 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 21 82 e3 fd       	call   0xfffffffffde38234
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 c9 cd e3 fd       	call   0xfffffffffde3cde4
  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 30 5b d7 fd       	call   0xfffffffffdd75b64
  34:	65 8b 05 d9 c1 09 02 	mov    %gs:0x209c1d9(%rip),%eax        # 0x209c214
  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 30 5b d7 fd       	call   0xfffffffffdd75b3a
   a:	65 8b 05 d9 c1 09 02 	mov    %gs:0x209c1d9(%rip),%eax        # 0x209c1ea
  11:	85 c0                	test   %eax,%eax
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
# 87.26 [+0.01] [  644.408042] [    C0] RSP: 0018:ffa0000000007c38 EFLAGS: 00000246
# 87.26 [+0.00] [  644.408044] [    C0] RAX: 0000000000000096 RBX: ffffffffa34a5100 RCX: ffffffffa0496e63
# 87.27 [+0.00] [  644.408045] [    C0] RDX: ff11000001b24540 RSI: ffffffffa0da9a6a RDI: ffffffffa0867200
# 87.27 [+0.00] [  644.408046] [    C0] RBP: 0000000000000212 R08: 0000000000000000 R09: 0000000000000001
# 87.27 [+0.00] [  644.408047] [    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
# 87.27 [+0.00] [  644.408047] [    C0] R13: dffffc0000000000 R14: 0000000000000001 R15: ff110000018fb250
# 87.28 [+0.00] [  644.408050] [    C0] FS:  0000000000000000(0000) GS:ff1100008d0ed000(0000) knlGS:0000000000000000
# 87.28 [+0.00] [  644.408053] [    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
# 87.28 [+0.00] [  644.408054] [    C0] CR2: 00005560dbd1b480 CR3: 0000000036934003 CR4: 0000000000771ef0
# 87.28 [+0.00] [  644.408055] [    C0] PKRU: 55555554
# 87.29 [+0.00] [  644.408056] [    C0] Call Trace:
# 87.29 [+0.00] [  644.408060] [    C0]  <IRQ>
# 87.29 [+0.00] [  644.408064] [    C0]  __debug_check_no_obj_freed (lib/debugobjects.c:1110)
# 87.29 [+0.00] [  644.408070] [    C0]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
# 87.29 [+0.00] [  644.408075] [    C0]  ? debug_objects_fill_pool (lib/debugobjects.c:1070)
# 87.29 [+0.00] [  644.408077] [    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
# 87.30 [+0.00] [  644.408080] [    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
# 87.30 [+0.00] [  644.408083] [    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
# 87.30 [+0.00] [  644.408088] [    C0]  kmem_cache_free (mm/slub.c:2471 mm/slub.c:6663 mm/slub.c:6774)
# 87.30 [+0.00] [  644.408093] [    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
# 87.30 [+0.00] [  644.408095] [    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
# 87.31 [+0.00] [  644.408096] [    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:331 (discriminator 1) kernel/rcu/tree.c:2599 (discriminator 1))
# 87.31 [+0.00] [  644.408098] [    C0]  ? rcu_do_batch (kernel/rcu/tree.c:2605)
# 87.31 [+0.00] [  644.408100] [    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
# 87.31 [+0.00] [  644.408102] [    C0]  rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
# 87.31 [+0.00] [  644.408106] [    C0]  ? select_fallback_rq (kernel/sched/core.c:4069)
# 87.32 [+0.00] [  644.408109] [    C0]  ? trace_rcu_batch_end (kernel/rcu/tree.c:2529)
# 87.32 [+0.00] [  644.408111] [    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
# 87.32 [+0.00] [  644.408114] [    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
# 87.32 [+0.00] [  644.408117] [    C0]  rcu_core (kernel/rcu/tree.c:2859)
# 87.32 [+0.00] [  644.408120] [    C0]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
# 87.32 [+0.00] [  644.408124] [    C0]  ? tasklet_unlock_wait (kernel/softirq.c:580)
# 87.33 [+0.00] [  644.408126] [    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)
# 87.33 [+0.00] [  644.408131] [    C0]  irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
# 87.33 [+0.00] [  644.408133] [    C0]  common_interrupt (arch/x86/kernel/irq.c:319 (discriminator 49))
# 87.33 [+0.00] [  644.408136] [    C0]  </IRQ>
# 87.33 [+0.00] [  644.408136] [    C0]  <TASK>
# 87.33 [+0.00] [  644.408138] [    C0]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688)
# 87.34 [+0.00] [  644.408141] [    C0] RIP: 0010:pvclock_clocksource_read_nowd (arch/x86/kernel/pvclock.c:119)
# 87.34 [+0.00] [  644.408143] [    C0] Code: 0c 02 e8 1f 00 00 00 48 2b 05 b8 42 9d 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 23 73 22 00 fb f4 c3 0f 1f 40 d6 <48> 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01 f9 66 90 48 c1
All code
========
   0:	0c 02                	or     $0x2,%al
   2:	e8 1f 00 00 00       	call   0x26
   7:	48 2b 05 b8 42 9d 00 	sub    0x9d42b8(%rip),%rax        # 0x9d42c6
   e:	c3                   	ret
   f:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  16:	f3 0f 1e fa          	endbr64
  1a:	eb 07                	jmp    0x23
  1c:	0f 00 2d 23 73 22 00 	verw   0x227323(%rip)        # 0x227346
  23:	fb                   	sti
  24:	f4                   	hlt
  25:	c3                   	ret
  26:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2a:*	48 83 ec 20          	sub    $0x20,%rsp		<-- trapping instruction
  2e:	8b 17                	mov    (%rdi),%edx
  30:	49 89 f8             	mov    %rdi,%r8
  33:	83 e2 fe             	and    $0xfffffffe,%edx
  36:	41 89 d2             	mov    %edx,%r10d
  39:	0f 01 f9             	rdtscp
  3c:	66 90                	xchg   %ax,%ax
  3e:	48                   	rex.W
  3f:	c1                   	.byte 0xc1

Code starting with the faulting instruction
===========================================
   0:	48 83 ec 20          	sub    $0x20,%rsp
   4:	8b 17                	mov    (%rdi),%edx
   6:	49 89 f8             	mov    %rdi,%r8
   9:	83 e2 fe             	and    $0xfffffffe,%edx
   c:	41 89 d2             	mov    %edx,%r10d
   f:	0f 01 f9             	rdtscp
  12:	66 90                	xchg   %ax,%ax
  14:	48                   	rex.W
  15:	c1                   	.byte 0xc1
# 87.35 [+0.01] [  644.408144] [    C0] RSP: 0018:ffa0000000127d10 EFLAGS: 00000282
# 87.35 [+0.00] [  644.408146] [    C0] RAX: 0000000000000000 RBX: ffffffffa253a0a0 RCX: dffffc0000000000
# 87.35 [+0.00] [  644.408147] [    C0] RDX: ffffffff9e485256 RSI: ffffffffa070ba00 RDI: ffffffffa257a000
# 87.35 [+0.00] [  644.408148] [    C0] RBP: ffffffff9e493e60 R08: 0000000000000000 R09: 0000000000000001
# 87.36 [+0.00] [  644.408148] [    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff1100002f627058
# 87.36 [+0.00] [  644.408149] [    C0] R13: dffffc0000000000 R14: ffe21c0005ec4e0a R15: 0000000000000000
# 87.36 [+0.00] [  644.408150] [    C0]  ? lockup_detector_update_enable (kernel/watchdog.c:744)
# 87.36 [+0.00] [  644.408154] [    C0]  ? cpu_stopper_thread (kernel/stop_machine.c:512)
# 87.37 [+0.00] [  644.408159] [    C0]  kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91 (discriminator 2))
# 87.37 [+0.00] [  644.408160] [    C0]  local_clock_noinstr (kernel/sched/clock.c:304 (discriminator 1))
# 87.37 [+0.00] [  644.408162] [    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
# 87.37 [+0.00] [  644.408164] [    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
# 87.37 [+0.00] [  644.408165] [    C0]  running_clock+0x10/0x20
# 87.38 [+0.00] [  644.408168] [    C0]  softlockup_fn (kernel/watchdog.c:640 kernel/watchdog.c:647 kernel/watchdog.c:745)
# 87.38 [+0.00] [  644.408170] [    C0]  ? preempt_count_add (./include/linux/ftrace.h:1132 (discriminator 1) kernel/sched/core.c:5705 (discriminator 1) kernel/sched/core.c:5702 (discriminator 1) kernel/sched/core.c:5730 (discriminator 1))
# 87.38 [+0.00] [  644.408172] [    C0]  cpu_stopper_thread (kernel/stop_machine.c:513)
# 87.38 [+0.00] [  644.408177] [    C0]  smpboot_thread_fn (kernel/smpboot.c:160)
# 87.38 [+0.00] [  644.408182] [    C0]  ? sort_range (kernel/smpboot.c:103)
# 87.39 [+0.00] [  644.408184] [    C0]  kthread (kernel/kthread.c:463)
# 87.39 [+0.00] [  644.408186] [    C0]  ? kthread_is_per_cpu (kernel/kthread.c:412)
# 87.39 [+0.00] [  644.408188] [    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
# 87.39 [+0.00] [  644.408190] [    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
# 87.39 [+0.00] [  644.408192] [    C0]  ? kthread_is_per_cpu (kernel/kthread.c:412)
# 87.39 [+0.00] [  644.408194] [    C0]  ret_from_fork (arch/x86/kernel/process.c:164)
# 87.40 [+0.00] [  644.408198] [    C0]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
# 87.40 [+0.00] [  644.408201] [    C0]  ? __switch_to (./include/linux/thread_info.h:140 (discriminator 2) arch/x86/kernel/process.h:16 (discriminator 2) arch/x86/kernel/process_64.c:676 (discriminator 2))
# 87.40 [+0.00] [  644.408205] [    C0]  ? kthread_is_per_cpu (kernel/kthread.c:412)
# 87.40 [+0.00] [  644.408207] [    C0]  ret_from_fork_asm (arch/x86/entry/entry_64.S:256)
| # 87.41 [+0.00] [  649.138994] [    C0] rcu: INFO: rcu_preempt self-detected stall on CPU
| # 87.41 [+0.00] [  649.139333] [    C0] rcu: 0-....: (1 GPs behind) idle=1ffc/1/0x4000000000000000 softirq=548880/548881 fqs=6406
| # 87.41 [+0.00] [  649.140224] [    C0] rcu: (t=26000 jiffies g=537257 q=693 ncpus=4)
| # 87.42 [+0.00] [  649.140470] [    C0] Tainted: [L]=SOFTLOCKUP
# 87.42 [+0.00] [  649.140471] [    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# 87.42 [+0.00] [  649.140473] [    C0] Stopper: softlockup_fn+0x0/0xc0 <- watchdog_timer_fn (kernel/watchdog.c:775 (discriminator 1))
# 87.42 [+0.00] [  649.140482] [    C0] RIP: 0010:__orc_find (arch/x86/kernel/unwind_orc.c:80 arch/x86/kernel/unwind_orc.c:102)
# 87.43 [+0.00] [  649.140486] [    C0] Code: 39 c1 72 4d 4c 89 ca 4c 29 c2 48 89 d1 48 c1 ea 3f 48 c1 f9 02 48 01 ca 48 d1 fa 49 8d 14 90 48 89 d1 48 c1 e9 03 0f b6 3c 01 <48> 89 d1 83 e1 07 83 c1 03 40 38 f9 7c 05 40 84 ff 75 30 48 63 0a
All code
========
   0:	39 c1                	cmp    %eax,%ecx
   2:	72 4d                	jb     0x51
   4:	4c 89 ca             	mov    %r9,%rdx
   7:	4c 29 c2             	sub    %r8,%rdx
   a:	48 89 d1             	mov    %rdx,%rcx
   d:	48 c1 ea 3f          	shr    $0x3f,%rdx
  11:	48 c1 f9 02          	sar    $0x2,%rcx
  15:	48 01 ca             	add    %rcx,%rdx
  18:	48 d1 fa             	sar    $1,%rdx
  1b:	49 8d 14 90          	lea    (%r8,%rdx,4),%rdx
  1f:	48 89 d1             	mov    %rdx,%rcx
  22:	48 c1 e9 03          	shr    $0x3,%rcx
  26:	0f b6 3c 01          	movzbl (%rcx,%rax,1),%edi
  2a:*	48 89 d1             	mov    %rdx,%rcx		<-- trapping instruction
  2d:	83 e1 07             	and    $0x7,%ecx
  30:	83 c1 03             	add    $0x3,%ecx
  33:	40 38 f9             	cmp    %dil,%cl
  36:	7c 05                	jl     0x3d
  38:	40 84 ff             	test   %dil,%dil
  3b:	75 30                	jne    0x6d
  3d:	48 63 0a             	movslq (%rdx),%rcx

Code starting with the faulting instruction
===========================================
   0:	48 89 d1             	mov    %rdx,%rcx
   3:	83 e1 07             	and    $0x7,%ecx
   6:	83 c1 03             	add    $0x3,%ecx
   9:	40 38 f9             	cmp    %dil,%cl
   c:	7c 05                	jl     0x13
   e:	40 84 ff             	test   %dil,%dil
  11:	75 30                	jne    0x43
  13:	48 63 0a             	movslq (%rdx),%rcx
# 87.43 [+0.01] [  649.140488] [    C0] RSP: 0018:ffa00000000078b0 EFLAGS: 00000212
# 87.43 [+0.00] [  649.140492] [    C0] RAX: dffffc0000000000 RBX: ffffffffa200227a RCX: 1ffffffff43a9475
# 87.44 [+0.00] [  649.140493] [    C0] RDX: ffffffffa1d4a3a8 RSI: ffffffffa1d4a380 RDI: 0000000000000000
# 87.44 [+0.00] [  649.140494] [    C0] RBP: 0000000000000002 R08: ffffffffa1d4a380 R09: ffffffffa1d4a3d0
# 87.44 [+0.00] [  649.140495] [    C0] R10: ffffffff9ea5a82f R11: ffffffffa1d4a380 R12: ffa0000000007a48
# 87.45 [+0.00] [  649.140496] [    C0] R13: ffa00000000079f0 R14: 0000000000000000 R15: ff11000001b24540
# 87.45 [+0.00] [  649.140498] [    C0] FS:  0000000000000000(0000) GS:ff1100008d0ed000(0000) knlGS:0000000000000000
# 87.45 [+0.00] [  649.140501] [    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
# 87.45 [+0.00] [  649.140502] [    C0] CR2: 00005560dbd1b480 CR3: 0000000036934003 CR4: 0000000000771ef0
# 87.46 [+0.00] [  649.140503] [    C0] PKRU: 55555554
# 87.46 [+0.00] [  649.140504] [    C0] Call Trace:
# 87.46 [+0.00] [  649.140505] [    C0]  <IRQ>
# 87.46 [+0.00] [  649.140509] [    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
# 87.46 [+0.00] [  649.140512] [    C0]  unwind_next_frame (arch/x86/kernel/unwind_orc.c:495)
# 87.47 [+0.00] [  649.140514] [    C0]  ? kasan_save_stack (mm/kasan/common.c:57)
# 87.47 [+0.00] [  649.140520] [    C0]  ? stack_access_ok (arch/x86/kernel/unwind_orc.c:469)
# 87.47 [+0.00] [  649.140524] [    C0]  ? __unwind_start (./arch/x86/include/asm/unwind.h:50 arch/x86/kernel/unwind_orc.c:755)
# 87.47 [+0.00] [  649.140526] [    C0]  ? write_profile (kernel/stacktrace.c:83)
# 87.47 [+0.00] [  649.140530] [    C0]  arch_stack_walk (arch/x86/kernel/stacktrace.c:24 (discriminator 3))
# 87.47 [+0.00] [  649.140535] [    C0]  ? kasan_save_stack (mm/kasan/common.c:57)
# 87.48 [+0.00] [  649.140539] [    C0]  stack_trace_save (kernel/stacktrace.c:123)
# 87.48 [+0.00] [  649.140541] [    C0]  ? stack_trace_snprint (kernel/stacktrace.c:114)
# 87.48 [+0.00] [  649.140543] [    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
# 87.48 [+0.00] [  649.140548] [    C0]  kasan_save_stack (mm/kasan/common.c:57)
# 87.48 [+0.00] [  649.140550] [    C0]  ? kasan_save_stack (mm/kasan/common.c:57)
# 87.49 [+0.00] [  649.140566] [    C0]  kasan_save_track (mm/kasan/common.c:69 (discriminator 1) mm/kasan/common.c:78 (discriminator 1))
# 87.49 [+0.00] [  649.140568] [    C0]  __kasan_save_free_info (mm/kasan/generic.c:590 (discriminator 1))
# 87.49 [+0.00] [  649.140570] [    C0]  __kasan_slab_free (mm/kasan/common.c:286)
# 87.49 [+0.00] [  649.140572] [    C0]  kmem_cache_free (mm/slub.c:6663 (discriminator 3) mm/slub.c:6774 (discriminator 3))
# 87.49 [+0.00] [  649.140575] [    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
# 87.49 [+0.00] [  649.140577] [    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
# 87.50 [+0.00] [  649.140578] [    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:331 (discriminator 1) kernel/rcu/tree.c:2599 (discriminator 1))
# 87.50 [+0.00] [  649.140579] [    C0]  ? rcu_do_batch (kernel/rcu/tree.c:2605)
# 87.50 [+0.00] [  649.140582] [    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
# 87.50 [+0.00] [  649.140585] [    C0]  rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
# 87.50 [+0.00] [  649.140591] [    C0]  ? select_fallback_rq (kernel/sched/core.c:4069)
# 87.51 [+0.00] [  649.140595] [    C0]  ? trace_rcu_batch_end (kernel/rcu/tree.c:2529)
# 87.51 [+0.00] [  649.140598] [    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
# 87.51 [+0.00] [  649.140600] [    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
# 87.51 [+0.00] [  649.140603] [    C0]  rcu_core (kernel/rcu/tree.c:2859)
# 87.51 [+0.00] [  649.140606] [    C0]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
# 87.51 [+0.00] [  649.140611] [    C0]  ? tasklet_unlock_wait (kernel/softirq.c:580)
# 87.52 [+0.00] [  649.140613] [    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)
# 87.52 [+0.00] [  649.140618] [    C0]  irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
# 87.52 [+0.00] [  649.140619] [    C0]  common_interrupt (arch/x86/kernel/irq.c:319 (discriminator 49))
# 87.52 [+0.00] [  649.140623] [    C0]  </IRQ>
# 87.52 [+0.00] [  649.140624] [    C0]  <TASK>
# 87.52 [+0.00] [  649.140626] [    C0]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688)
# 87.53 [+0.00] [  649.140629] [    C0] RIP: 0010:pvclock_clocksource_read_nowd (arch/x86/kernel/pvclock.c:119)
# 87.53 [+0.00] [  649.140631] [    C0] Code: 0c 02 e8 1f 00 00 00 48 2b 05 b8 42 9d 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 23 73 22 00 fb f4 c3 0f 1f 40 d6 <48> 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01 f9 66 90 48 c1
All code
========
   0:	0c 02                	or     $0x2,%al
   2:	e8 1f 00 00 00       	call   0x26
   7:	48 2b 05 b8 42 9d 00 	sub    0x9d42b8(%rip),%rax        # 0x9d42c6
   e:	c3                   	ret
   f:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  16:	f3 0f 1e fa          	endbr64
  1a:	eb 07                	jmp    0x23
  1c:	0f 00 2d 23 73 22 00 	verw   0x227323(%rip)        # 0x227346
  23:	fb                   	sti
  24:	f4                   	hlt
  25:	c3                   	ret
  26:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2a:*	48 83 ec 20          	sub    $0x20,%rsp		<-- trapping instruction
  2e:	8b 17                	mov    (%rdi),%edx
  30:	49 89 f8             	mov    %rdi,%r8
  33:	83 e2 fe             	and    $0xfffffffe,%edx
  36:	41 89 d2             	mov    %edx,%r10d
  39:	0f 01 f9             	rdtscp
  3c:	66 90                	xchg   %ax,%ax
  3e:	48                   	rex.W
  3f:	c1                   	.byte 0xc1

Code starting with the faulting instruction
===========================================
   0:	48 83 ec 20          	sub    $0x20,%rsp
   4:	8b 17                	mov    (%rdi),%edx
   6:	49 89 f8             	mov    %rdi,%r8
   9:	83 e2 fe             	and    $0xfffffffe,%edx
   c:	41 89 d2             	mov    %edx,%r10d
   f:	0f 01 f9             	rdtscp
  12:	66 90                	xchg   %ax,%ax
  14:	48                   	rex.W
  15:	c1                   	.byte 0xc1
# 87.54 [+0.01] [  649.140632] [    C0] RSP: 0018:ffa0000000127d10 EFLAGS: 00000282
# 87.54 [+0.00] [  649.140633] [    C0] RAX: 0000000000000000 RBX: ffffffffa253a0a0 RCX: dffffc0000000000
# 87.54 [+0.00] [  649.140634] [    C0] RDX: ffffffff9e485256 RSI: ffffffffa070ba00 RDI: ffffffffa257a000
# 87.54 [+0.00] [  649.140634] [    C0] RBP: ffffffff9e493e60 R08: 0000000000000000 R09: 0000000000000001
# 87.55 [+0.00] [  649.140635] [    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff1100002f627058
# 87.55 [+0.00] [  649.140636] [    C0] R13: dffffc0000000000 R14: ffe21c0005ec4e0a R15: 0000000000000000
# 87.55 [+0.00] [  649.140637] [    C0]  ? lockup_detector_update_enable (kernel/watchdog.c:744)
# 87.55 [+0.00] [  649.140641] [    C0]  ? cpu_stopper_thread (kernel/stop_machine.c:512)
# 87.56 [+0.00] [  649.140646] [    C0]  kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91 (discriminator 2))
# 87.56 [+0.00] [  649.140647] [    C0]  local_clock_noinstr (kernel/sched/clock.c:304 (discriminator 1))
# 87.56 [+0.00] [  649.140649] [    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
# 87.56 [+0.00] [  649.140652] [    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
# 87.56 [+0.00] [  649.140653] [    C0]  running_clock+0x10/0x20
# 87.57 [+0.00] [  649.140656] [    C0]  softlockup_fn (kernel/watchdog.c:640 kernel/watchdog.c:647 kernel/watchdog.c:745)
# 87.57 [+0.00] [  649.140658] [    C0]  ? preempt_count_add (./include/linux/ftrace.h:1132 (discriminator 1) kernel/sched/core.c:5705 (discriminator 1) kernel/sched/core.c:5702 (discriminator 1) kernel/sched/core.c:5730 (discriminator 1))
# 87.57 [+0.00] [  649.140659] [    C0]  cpu_stopper_thread (kernel/stop_machine.c:513)
# 87.57 [+0.00] [  649.140664] [    C0]  smpboot_thread_fn (kernel/smpboot.c:160)
# 87.57 [+0.00] [  649.140669] [    C0]  ? sort_range (kernel/smpboot.c:103)
# 87.58 [+0.00] [  649.140671] [    C0]  kthread (kernel/kthread.c:463)
# 87.58 [+0.00] [  649.140673] [    C0]  ? kthread_is_per_cpu (kernel/kthread.c:412)
# 87.58 [+0.00] [  649.140675] [    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
# 87.58 [+0.00] [  649.140677] [    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
# 87.58 [+0.00] [  649.140679] [    C0]  ? kthread_is_per_cpu (kernel/kthread.c:412)
# 87.58 [+0.00] [  649.140681] [    C0]  ret_from_fork (arch/x86/kernel/process.c:164)
# 87.59 [+0.00] [  649.140685] [    C0]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
# 87.59 [+0.00] [  649.140688] [    C0]  ? __switch_to (./include/linux/thread_info.h:140 (discriminator 2) arch/x86/kernel/process.h:16 (discriminator 2) arch/x86/kernel/process_64.c:676 (discriminator 2))
# 87.59 [+0.00] [  649.140691] [    C0]  ? kthread_is_per_cpu (kernel/kthread.c:412)
# 87.59 [+0.00] [  649.140693] [    C0]  ret_from_fork_asm (arch/x86/entry/entry_64.S:256)
| [  644.408005][    C0] hardirqs last  enabled at (617806): irqentry_exit (kernel/entry/common.c:220)
| [  644.408013][    C0] hardirqs last disabled at (617807): sysvec_apic_timer_interrupt (./arch/x86/include/asm/hardirq.h:78 arch/x86/kernel/apic/apic.c:1056)
| [  644.408015][    C0] softirqs last  enabled at (92644): handle_softirqs (kernel/softirq.c:469 (discriminator 2) kernel/softirq.c:650 (discriminator 2))
| [  644.408020][    C0] softirqs last disabled at (92661): irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
[  644.408029][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  644.408031][    C0] Stopper: softlockup_fn+0x0/0xc0 <- watchdog_timer_fn (kernel/watchdog.c:775 (discriminator 1))
[  644.408036][    C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[  644.408040][    C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 21 82 e3 fd 48 89 df e8 c9 cd e3 fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 30 5b d7 fd 65 8b 05 d9 c1 09 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 21 82 e3 fd       	call   0xfffffffffde38234
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 c9 cd e3 fd       	call   0xfffffffffde3cde4
  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 30 5b d7 fd       	call   0xfffffffffdd75b64
  34:	65 8b 05 d9 c1 09 02 	mov    %gs:0x209c1d9(%rip),%eax        # 0x209c214
  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 30 5b d7 fd       	call   0xfffffffffdd75b3a
   a:	65 8b 05 d9 c1 09 02 	mov    %gs:0x209c1d9(%rip),%eax        # 0x209c1ea
  11:	85 c0                	test   %eax,%eax
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
[  644.408042][    C0] RSP: 0018:ffa0000000007c38 EFLAGS: 00000246
[  644.408044][    C0] RAX: 0000000000000096 RBX: ffffffffa34a5100 RCX: ffffffffa0496e63
[  644.408045][    C0] RDX: ff11000001b24540 RSI: ffffffffa0da9a6a RDI: ffffffffa0867200
[  644.408046][    C0] RBP: 0000000000000212 R08: 0000000000000000 R09: 0000000000000001
[  644.408047][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[  644.408047][    C0] R13: dffffc0000000000 R14: 0000000000000001 R15: ff110000018fb250
[  644.408050][    C0] FS:  0000000000000000(0000) GS:ff1100008d0ed000(0000) knlGS:0000000000000000
[  644.408053][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  644.408054][    C0] CR2: 00005560dbd1b480 CR3: 0000000036934003 CR4: 0000000000771ef0
[  644.408055][    C0] PKRU: 55555554
[  644.408056][    C0] Call Trace:
[  644.408060][    C0]  <IRQ>
[  644.408064][    C0]  __debug_check_no_obj_freed (lib/debugobjects.c:1110)
[  644.408070][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  644.408075][    C0]  ? debug_objects_fill_pool (lib/debugobjects.c:1070)
[  644.408077][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[  644.408080][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
[  644.408083][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[  644.408088][    C0]  kmem_cache_free (mm/slub.c:2471 mm/slub.c:6663 mm/slub.c:6774)
[  644.408093][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  644.408095][    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
[  644.408096][    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:331 (discriminator 1) kernel/rcu/tree.c:2599 (discriminator 1))
[  644.408098][    C0]  ? rcu_do_batch (kernel/rcu/tree.c:2605)
[  644.408100][    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
[  644.408102][    C0]  rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
[  644.408106][    C0]  ? select_fallback_rq (kernel/sched/core.c:4069)
[  644.408109][    C0]  ? trace_rcu_batch_end (kernel/rcu/tree.c:2529)
[  644.408111][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  644.408114][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  644.408117][    C0]  rcu_core (kernel/rcu/tree.c:2859)
[  644.408120][    C0]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[  644.408124][    C0]  ? tasklet_unlock_wait (kernel/softirq.c:580)
[  644.408126][    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)
[  644.408131][    C0]  irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
[  644.408133][    C0]  common_interrupt (arch/x86/kernel/irq.c:319 (discriminator 49))
[  644.408136][    C0]  </IRQ>
[  644.408136][    C0]  <TASK>
[  644.408138][    C0]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688)
[  644.408141][    C0] RIP: 0010:pvclock_clocksource_read_nowd (arch/x86/kernel/pvclock.c:119)
[  644.408143][    C0] Code: 0c 02 e8 1f 00 00 00 48 2b 05 b8 42 9d 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 23 73 22 00 fb f4 c3 0f 1f 40 d6 <48> 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01 f9 66 90 48 c1
All code
========
   0:	0c 02                	or     $0x2,%al
   2:	e8 1f 00 00 00       	call   0x26
   7:	48 2b 05 b8 42 9d 00 	sub    0x9d42b8(%rip),%rax        # 0x9d42c6
   e:	c3                   	ret
   f:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  16:	f3 0f 1e fa          	endbr64
  1a:	eb 07                	jmp    0x23
  1c:	0f 00 2d 23 73 22 00 	verw   0x227323(%rip)        # 0x227346
  23:	fb                   	sti
  24:	f4                   	hlt
  25:	c3                   	ret
  26:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2a:*	48 83 ec 20          	sub    $0x20,%rsp		<-- trapping instruction
  2e:	8b 17                	mov    (%rdi),%edx
  30:	49 89 f8             	mov    %rdi,%r8
  33:	83 e2 fe             	and    $0xfffffffe,%edx
  36:	41 89 d2             	mov    %edx,%r10d
  39:	0f 01 f9             	rdtscp
  3c:	66 90                	xchg   %ax,%ax
  3e:	48                   	rex.W
  3f:	c1                   	.byte 0xc1

Code starting with the faulting instruction
===========================================
   0:	48 83 ec 20          	sub    $0x20,%rsp
   4:	8b 17                	mov    (%rdi),%edx
   6:	49 89 f8             	mov    %rdi,%r8
   9:	83 e2 fe             	and    $0xfffffffe,%edx
   c:	41 89 d2             	mov    %edx,%r10d
   f:	0f 01 f9             	rdtscp
  12:	66 90                	xchg   %ax,%ax
  14:	48                   	rex.W
  15:	c1                   	.byte 0xc1
[  644.408144][    C0] RSP: 0018:ffa0000000127d10 EFLAGS: 00000282
[  644.408146][    C0] RAX: 0000000000000000 RBX: ffffffffa253a0a0 RCX: dffffc0000000000
[  644.408147][    C0] RDX: ffffffff9e485256 RSI: ffffffffa070ba00 RDI: ffffffffa257a000
[  644.408148][    C0] RBP: ffffffff9e493e60 R08: 0000000000000000 R09: 0000000000000001
[  644.408148][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff1100002f627058
[  644.408149][    C0] R13: dffffc0000000000 R14: ffe21c0005ec4e0a R15: 0000000000000000
[  644.408150][    C0]  ? lockup_detector_update_enable (kernel/watchdog.c:744)
[  644.408154][    C0]  ? cpu_stopper_thread (kernel/stop_machine.c:512)
[  644.408159][    C0]  kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91 (discriminator 2))
[  644.408160][    C0]  local_clock_noinstr (kernel/sched/clock.c:304 (discriminator 1))
[  644.408162][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[  644.408164][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
[  644.408165][    C0]  running_clock+0x10/0x20
[  644.408168][    C0]  softlockup_fn (kernel/watchdog.c:640 kernel/watchdog.c:647 kernel/watchdog.c:745)
[  644.408170][    C0]  ? preempt_count_add (./include/linux/ftrace.h:1132 (discriminator 1) kernel/sched/core.c:5705 (discriminator 1) kernel/sched/core.c:5702 (discriminator 1) kernel/sched/core.c:5730 (discriminator 1))
[  644.408172][    C0]  cpu_stopper_thread (kernel/stop_machine.c:513)
[  644.408177][    C0]  smpboot_thread_fn (kernel/smpboot.c:160)
[  644.408182][    C0]  ? sort_range (kernel/smpboot.c:103)
[  644.408184][    C0]  kthread (kernel/kthread.c:463)
[  644.408186][    C0]  ? kthread_is_per_cpu (kernel/kthread.c:412)
[  644.408188][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  644.408190][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  644.408192][    C0]  ? kthread_is_per_cpu (kernel/kthread.c:412)
[  644.408194][    C0]  ret_from_fork (arch/x86/kernel/process.c:164)
[  644.408198][    C0]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  644.408201][    C0]  ? __switch_to (./include/linux/thread_info.h:140 (discriminator 2) arch/x86/kernel/process.h:16 (discriminator 2) arch/x86/kernel/process_64.c:676 (discriminator 2))
[  644.408205][    C0]  ? kthread_is_per_cpu (kernel/kthread.c:412)
[  644.408207][    C0]  ret_from_fork_asm (arch/x86/entry/entry_64.S:256)
| [  649.138994][    C0] rcu: INFO: rcu_preempt self-detected stall on CPU
| [  649.139333][    C0] rcu: 0-....: (1 GPs behind) idle=1ffc/1/0x4000000000000000 softirq=548880/548881 fqs=6406
| [  649.140224][    C0] rcu: (t=26000 jiffies g=537257 q=693 ncpus=4)
| [  649.140470][    C0] Tainted: [L]=SOFTLOCKUP
[  649.140471][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  649.140473][    C0] Stopper: softlockup_fn+0x0/0xc0 <- watchdog_timer_fn (kernel/watchdog.c:775 (discriminator 1))
[  649.140482][    C0] RIP: 0010:__orc_find (arch/x86/kernel/unwind_orc.c:80 arch/x86/kernel/unwind_orc.c:102)
[  649.140486][    C0] Code: 39 c1 72 4d 4c 89 ca 4c 29 c2 48 89 d1 48 c1 ea 3f 48 c1 f9 02 48 01 ca 48 d1 fa 49 8d 14 90 48 89 d1 48 c1 e9 03 0f b6 3c 01 <48> 89 d1 83 e1 07 83 c1 03 40 38 f9 7c 05 40 84 ff 75 30 48 63 0a
All code
========
   0:	39 c1                	cmp    %eax,%ecx
   2:	72 4d                	jb     0x51
   4:	4c 89 ca             	mov    %r9,%rdx
   7:	4c 29 c2             	sub    %r8,%rdx
   a:	48 89 d1             	mov    %rdx,%rcx
   d:	48 c1 ea 3f          	shr    $0x3f,%rdx
  11:	48 c1 f9 02          	sar    $0x2,%rcx
  15:	48 01 ca             	add    %rcx,%rdx
  18:	48 d1 fa             	sar    $1,%rdx
  1b:	49 8d 14 90          	lea    (%r8,%rdx,4),%rdx
  1f:	48 89 d1             	mov    %rdx,%rcx
  22:	48 c1 e9 03          	shr    $0x3,%rcx
  26:	0f b6 3c 01          	movzbl (%rcx,%rax,1),%edi
  2a:*	48 89 d1             	mov    %rdx,%rcx		<-- trapping instruction
  2d:	83 e1 07             	and    $0x7,%ecx
  30:	83 c1 03             	add    $0x3,%ecx
  33:	40 38 f9             	cmp    %dil,%cl
  36:	7c 05                	jl     0x3d
  38:	40 84 ff             	test   %dil,%dil
  3b:	75 30                	jne    0x6d
  3d:	48 63 0a             	movslq (%rdx),%rcx

Code starting with the faulting instruction
===========================================
   0:	48 89 d1             	mov    %rdx,%rcx
   3:	83 e1 07             	and    $0x7,%ecx
   6:	83 c1 03             	add    $0x3,%ecx
   9:	40 38 f9             	cmp    %dil,%cl
   c:	7c 05                	jl     0x13
   e:	40 84 ff             	test   %dil,%dil
  11:	75 30                	jne    0x43
  13:	48 63 0a             	movslq (%rdx),%rcx
[  649.140488][    C0] RSP: 0018:ffa00000000078b0 EFLAGS: 00000212
[  649.140492][    C0] RAX: dffffc0000000000 RBX: ffffffffa200227a RCX: 1ffffffff43a9475
[  649.140493][    C0] RDX: ffffffffa1d4a3a8 RSI: ffffffffa1d4a380 RDI: 0000000000000000
[  649.140494][    C0] RBP: 0000000000000002 R08: ffffffffa1d4a380 R09: ffffffffa1d4a3d0
[  649.140495][    C0] R10: ffffffff9ea5a82f R11: ffffffffa1d4a380 R12: ffa0000000007a48
[  649.140496][    C0] R13: ffa00000000079f0 R14: 0000000000000000 R15: ff11000001b24540
[  649.140498][    C0] FS:  0000000000000000(0000) GS:ff1100008d0ed000(0000) knlGS:0000000000000000
[  649.140501][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  649.140502][    C0] CR2: 00005560dbd1b480 CR3: 0000000036934003 CR4: 0000000000771ef0
[  649.140503][    C0] PKRU: 55555554
[  649.140504][    C0] Call Trace:
[  649.140505][    C0]  <IRQ>
[  649.140509][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  649.140512][    C0]  unwind_next_frame (arch/x86/kernel/unwind_orc.c:495)
[  649.140514][    C0]  ? kasan_save_stack (mm/kasan/common.c:57)
[  649.140520][    C0]  ? stack_access_ok (arch/x86/kernel/unwind_orc.c:469)
[  649.140524][    C0]  ? __unwind_start (./arch/x86/include/asm/unwind.h:50 arch/x86/kernel/unwind_orc.c:755)
[  649.140526][    C0]  ? write_profile (kernel/stacktrace.c:83)
[  649.140530][    C0]  arch_stack_walk (arch/x86/kernel/stacktrace.c:24 (discriminator 3))
[  649.140535][    C0]  ? kasan_save_stack (mm/kasan/common.c:57)
[  649.140539][    C0]  stack_trace_save (kernel/stacktrace.c:123)
[  649.140541][    C0]  ? stack_trace_snprint (kernel/stacktrace.c:114)
[  649.140543][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[  649.140548][    C0]  kasan_save_stack (mm/kasan/common.c:57)
[  649.140550][    C0]  ? kasan_save_stack (mm/kasan/common.c:57)
[  649.140566][    C0]  kasan_save_track (mm/kasan/common.c:69 (discriminator 1) mm/kasan/common.c:78 (discriminator 1))
[  649.140568][    C0]  __kasan_save_free_info (mm/kasan/generic.c:590 (discriminator 1))
[  649.140570][    C0]  __kasan_slab_free (mm/kasan/common.c:286)
[  649.140572][    C0]  kmem_cache_free (mm/slub.c:6663 (discriminator 3) mm/slub.c:6774 (discriminator 3))
[  649.140575][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  649.140577][    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
[  649.140578][    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:331 (discriminator 1) kernel/rcu/tree.c:2599 (discriminator 1))
[  649.140579][    C0]  ? rcu_do_batch (kernel/rcu/tree.c:2605)
[  649.140582][    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
[  649.140585][    C0]  rcu_do_batch (./include/linux/rcupdate.h:341 (discriminator 1) kernel/rcu/tree.c:2607 (discriminator 1))
[  649.140591][    C0]  ? select_fallback_rq (kernel/sched/core.c:4069)
[  649.140595][    C0]  ? trace_rcu_batch_end (kernel/rcu/tree.c:2529)
[  649.140598][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  649.140600][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  649.140603][    C0]  rcu_core (kernel/rcu/tree.c:2859)
[  649.140606][    C0]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[  649.140611][    C0]  ? tasklet_unlock_wait (kernel/softirq.c:580)
[  649.140613][    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)
[  649.140618][    C0]  irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
[  649.140619][    C0]  common_interrupt (arch/x86/kernel/irq.c:319 (discriminator 49))
[  649.140623][    C0]  </IRQ>
[  649.140624][    C0]  <TASK>
[  649.140626][    C0]  asm_common_interrupt (./arch/x86/include/asm/idtentry.h:688)
[  649.140629][    C0] RIP: 0010:pvclock_clocksource_read_nowd (arch/x86/kernel/pvclock.c:119)
[  649.140631][    C0] Code: 0c 02 e8 1f 00 00 00 48 2b 05 b8 42 9d 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 23 73 22 00 fb f4 c3 0f 1f 40 d6 <48> 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01 f9 66 90 48 c1
All code
========
   0:	0c 02                	or     $0x2,%al
   2:	e8 1f 00 00 00       	call   0x26
   7:	48 2b 05 b8 42 9d 00 	sub    0x9d42b8(%rip),%rax        # 0x9d42c6
   e:	c3                   	ret
   f:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  16:	f3 0f 1e fa          	endbr64
  1a:	eb 07                	jmp    0x23
  1c:	0f 00 2d 23 73 22 00 	verw   0x227323(%rip)        # 0x227346
  23:	fb                   	sti
  24:	f4                   	hlt
  25:	c3                   	ret
  26:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2a:*	48 83 ec 20          	sub    $0x20,%rsp		<-- trapping instruction
  2e:	8b 17                	mov    (%rdi),%edx
  30:	49 89 f8             	mov    %rdi,%r8
  33:	83 e2 fe             	and    $0xfffffffe,%edx
  36:	41 89 d2             	mov    %edx,%r10d
  39:	0f 01 f9             	rdtscp
  3c:	66 90                	xchg   %ax,%ax
  3e:	48                   	rex.W
  3f:	c1                   	.byte 0xc1

Code starting with the faulting instruction
===========================================
   0:	48 83 ec 20          	sub    $0x20,%rsp
   4:	8b 17                	mov    (%rdi),%edx
   6:	49 89 f8             	mov    %rdi,%r8
   9:	83 e2 fe             	and    $0xfffffffe,%edx
   c:	41 89 d2             	mov    %edx,%r10d
   f:	0f 01 f9             	rdtscp
  12:	66 90                	xchg   %ax,%ax
  14:	48                   	rex.W
  15:	c1                   	.byte 0xc1
[  649.140632][    C0] RSP: 0018:ffa0000000127d10 EFLAGS: 00000282
[  649.140633][    C0] RAX: 0000000000000000 RBX: ffffffffa253a0a0 RCX: dffffc0000000000
[  649.140634][    C0] RDX: ffffffff9e485256 RSI: ffffffffa070ba00 RDI: ffffffffa257a000
[  649.140634][    C0] RBP: ffffffff9e493e60 R08: 0000000000000000 R09: 0000000000000001
[  649.140635][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff1100002f627058
[  649.140636][    C0] R13: dffffc0000000000 R14: ffe21c0005ec4e0a R15: 0000000000000000
[  649.140637][    C0]  ? lockup_detector_update_enable (kernel/watchdog.c:744)
[  649.140641][    C0]  ? cpu_stopper_thread (kernel/stop_machine.c:512)
[  649.140646][    C0]  kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91 (discriminator 2))
[  649.140647][    C0]  local_clock_noinstr (kernel/sched/clock.c:304 (discriminator 1))
[  649.140649][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[  649.140652][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
[  649.140653][    C0]  running_clock+0x10/0x20
[  649.140656][    C0]  softlockup_fn (kernel/watchdog.c:640 kernel/watchdog.c:647 kernel/watchdog.c:745)
[  649.140658][    C0]  ? preempt_count_add (./include/linux/ftrace.h:1132 (discriminator 1) kernel/sched/core.c:5705 (discriminator 1) kernel/sched/core.c:5702 (discriminator 1) kernel/sched/core.c:5730 (discriminator 1))
[  649.140659][    C0]  cpu_stopper_thread (kernel/stop_machine.c:513)
[  649.140664][    C0]  smpboot_thread_fn (kernel/smpboot.c:160)
[  649.140669][    C0]  ? sort_range (kernel/smpboot.c:103)
[  649.140671][    C0]  kthread (kernel/kthread.c:463)
[  649.140673][    C0]  ? kthread_is_per_cpu (kernel/kthread.c:412)
[  649.140675][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  649.140677][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  649.140679][    C0]  ? kthread_is_per_cpu (kernel/kthread.c:412)
[  649.140681][    C0]  ret_from_fork (arch/x86/kernel/process.c:164)
[  649.140685][    C0]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  649.140688][    C0]  ? __switch_to (./include/linux/thread_info.h:140 (discriminator 2) arch/x86/kernel/process.h:16 (discriminator 2) arch/x86/kernel/process_64.c:676 (discriminator 2))
[  649.140691][    C0]  ? kthread_is_per_cpu (kernel/kthread.c:412)


Finger prints:
__orc_find:unwind_next_frame:arch_stack_walk:stack_trace_save:kasan_save_stack
irqentry_exit:sysvec_apic_timer_interrupt:handle_softirqs:irq_exit_rcu:_raw_spin_unlock_irqrestore