======================================
| [   17.496685][    C2] 1 lock held by swapper/2/0:
| [ 17.496948][ C2] #0: ffffffff90f774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   17.497436][    C2]
| [   17.497436][    C2] stack backtrace:
[   17.497826][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.497829][    C2] Call Trace:
[   17.497832][    C2]  <IRQ>
[ 17.497837][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.497847][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 17.497856][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 17.497864][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 17.497870][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 17.497879][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 17.497885][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 17.497890][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 17.497895][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.497902][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 17.497906][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 17.497913][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.497919][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 17.497924][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 17.497931][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 17.497937][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 17.497942][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 17.497948][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 17.497954][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 17.497962][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 17.497968][ C2] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.497975][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.497978][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 17.497984][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.497989][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.497995][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.497999][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.498004][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.498009][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.498013][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.498018][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 17.498022][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.498026][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.498031][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 17.498044][ C2] __put_net (net/core/net_namespace.c:732) 
[ 17.498049][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.498056][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.498061][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.498067][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.498074][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.498079][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 17.498085][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 17.498090][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.498097][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.498104][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 17.498114][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.498119][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.498123][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.498128][    C2]  </IRQ>
[   17.498130][    C2]  <TASK>
[ 17.498133][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.498137][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.498144][ C2] Code: 92 b5 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 37 10 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	92                   	xchg   %eax,%edx
   1:	b5 00                	mov    $0x0,%ch
   3:	c3                   	ret
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 37 10 00 	verw   0x103783(%rip)        # 0x1037ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   17.498149][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000242
[   17.498154][    C2] RAX: 000000000004bea1 RBX: 1ffff92000028fc1 RCX: ffffffff8ff905d9
[   17.498158][    C2] RDX: 0000000000000000 RSI: ffffffff90a8f4e4 RDI: ffffffff90253be0
[   17.498161][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   17.498164][    C2] R10: ffff8880361337d3 R11: ffffffff90c11288 R12: 0000000000000000
[   17.498168][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 17.498176][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.498184][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.498189][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.498193][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.498199][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.498206][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.498214][ C2] do_idle (kernel/sched/idle.c:325) 
[ 17.498221][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.498226][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.498231][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 17.498240][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   17.520506][    C2] RCU nest depth: 0, expected: 0
| [   17.520795][    C2] INFO: lockdep is turned off.
| [   17.521014][    C2] Preemption disabled at:
| [ 17.521016][ C2] 0x0 
[   17.521420][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.521423][    C2] Call Trace:
[   17.521425][    C2]  <IRQ>
[ 17.521428][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.521439][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 17.521448][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.521455][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.521459][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 17.521465][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.521471][ C2] ? 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) 
[ 17.521479][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 17.521483][ C2] ? 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) 
[ 17.521488][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.521496][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.521500][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 17.521508][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 17.521513][ C2] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.521520][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.521525][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 17.521529][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.521535][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.521542][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.521549][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.521554][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.521558][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.521561][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.521565][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 17.521567][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.521569][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.521573][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 17.521581][ C2] __put_net (net/core/net_namespace.c:732) 
[ 17.521585][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.521589][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.521592][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.521595][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.521601][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.521604][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 17.521609][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 17.521613][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.521620][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.521627][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 17.521636][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.521641][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.521645][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.521651][    C2]  </IRQ>
[   17.521652][    C2]  <TASK>
[ 17.521655][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.521661][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.521666][ C2] Code: 92 b5 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 37 10 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	92                   	xchg   %eax,%edx
   1:	b5 00                	mov    $0x0,%ch
   3:	c3                   	ret
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 37 10 00 	verw   0x103783(%rip)        # 0x1037ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   17.521671][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000242
[   17.521676][    C2] RAX: 000000000004bea1 RBX: 1ffff92000028fc1 RCX: ffffffff8ff905d9
[   17.521679][    C2] RDX: 0000000000000000 RSI: ffffffff90a8f4e4 RDI: ffffffff90253be0
[   17.521683][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   17.521685][    C2] R10: ffff8880361337d3 R11: ffffffff90c11288 R12: 0000000000000000
[   17.521689][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 17.521695][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.521702][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.521706][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.521711][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.521716][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.521724][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.521731][ C2] do_idle (kernel/sched/idle.c:325) 
[ 17.521737][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.521741][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.521746][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 17.521753][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   20.452098][    C3] INFO: lockdep is turned off.
| [   20.452285][    C3] Preemption disabled at:
| [ 20.452287][ C3] 0x0 
| [   20.452629][    C3] Tainted: [W]=WARN
[   20.452630][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.452633][    C3] Call Trace:
[   20.452634][    C3]  <IRQ>
[ 20.452636][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 20.452646][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 20.452653][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 20.452657][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 20.452660][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 20.452665][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.452670][ C3] ? 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) 
[ 20.452676][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 20.452679][ C3] ? 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) 
[ 20.452682][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 20.452688][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 20.452691][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 20.452698][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 20.452701][ C3] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 20.452707][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 20.452710][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 20.452713][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 20.452719][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 20.452723][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 20.452727][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 20.452731][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 20.452733][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 20.452736][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.452739][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 20.452742][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 20.452744][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 20.452748][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 20.452753][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 20.452757][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.452762][ C3] __put_net (net/core/net_namespace.c:732) 
[ 20.452765][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 20.452770][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 20.452772][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 20.452777][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 20.452780][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 20.452786][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.452795][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 20.452801][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 20.452808][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 20.452812][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 20.452816][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   20.452821][    C3]  </IRQ>
[   20.452822][    C3]  <TASK>
[ 20.452824][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 20.452826][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 20.452831][ C3] Code: 92 b5 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 37 10 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	92                   	xchg   %eax,%edx
   1:	b5 00                	mov    $0x0,%ch
   3:	c3                   	ret
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 37 10 00 	verw   0x103783(%rip)        # 0x1037ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   20.452834][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   20.452838][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffff8ff905d9
[   20.452840][    C3] RDX: ffffed1006c366fb RSI: ffffffff90253b60 RDI: ffffffff8d78d18f
[   20.452842][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c366fa
[   20.452843][    C3] R10: ffff8880361b37d3 R11: ffff88800b37a818 R12: 0000000000000000
[   20.452845][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 20.452849][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 20.452852][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.452856][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 20.452858][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 20.452861][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.452864][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 20.452868][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 20.452872][ C3] do_idle (kernel/sched/idle.c:325) 
[ 20.452876][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 20.452879][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 20.452881][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__might_resched:down_write:simple_recursive_removal:debugfs_remove:ref_tracker_dir_exit