======================================
| [   16.319575][    C3] 1 lock held by swapper/3/0:
| [ 16.319790][ C3] #0: ffffffff97f774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   16.320163][    C3]
| [   16.320163][    C3] stack backtrace:
[   16.320424][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.320426][    C3] Call Trace:
[   16.320428][    C3]  <IRQ>
[ 16.320431][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.320437][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 16.320442][ C3] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 16.320446][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 16.320451][ C3] ? save_trace (kernel/locking/lockdep.c:595) 
[ 16.320457][ C3] mark_lock (kernel/locking/lockdep.c:4756) 
[ 16.320461][ C3] mark_usage (kernel/locking/lockdep.c:4645) 
[ 16.320464][ C3] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 16.320467][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.320471][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 16.320474][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.320479][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.320483][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 16.320485][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.320490][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 16.320494][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.320497][ C3] simple_pin_fs (fs/libfs.c:1067) 
[ 16.320501][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 16.320505][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.320511][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.320514][ 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) 
[ 16.320520][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.320522][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.320526][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.320529][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.320534][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.320538][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.320541][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.320544][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.320546][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.320550][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 16.320552][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.320555][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.320558][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.320566][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.320570][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.320574][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.320576][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.320580][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.320584][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.320587][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.320591][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.320594][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.320598][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.320603][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.320608][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.320611][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.320614][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.320618][    C3]  </IRQ>
[   16.320619][    C3]  <TASK>
[ 16.320620][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.320623][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.320627][ 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
[   16.320630][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000242
[   16.320633][    C3] RAX: 000000000004113d RBX: 1ffff9200002afc1 RCX: ffffffff96f905d9
[   16.320635][    C3] RDX: 0000000000000000 RSI: ffffffff97a8f4e4 RDI: ffffffff97253be0
[   16.320637][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c366fa
[   16.320638][    C3] R10: ffff8880361b37d3 R11: ffffffff97c11288 R12: 0000000000000000
[   16.320640][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 16.320644][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.320649][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.320651][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.320654][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.320657][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.320661][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.320665][ C3] do_idle (kernel/sched/idle.c:325) 
[ 16.320669][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.320672][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.320674][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 16.320679][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.337828][    C3] RCU nest depth: 0, expected: 0
| [   16.338016][    C3] INFO: lockdep is turned off.
| [   16.338200][    C3] Preemption disabled at:
| [ 16.338201][ C3] 0x0 
[   16.338559][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.338561][    C3] Call Trace:
[   16.338562][    C3]  <IRQ>
[ 16.338564][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.338571][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 16.338578][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.338581][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.338584][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.338588][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.338593][ 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) 
[ 16.338599][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.338601][ 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) 
[ 16.338604][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.338609][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.338612][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.338617][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.338621][ 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) 
[ 16.338626][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.338630][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.338633][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.338638][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.338643][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.338646][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.338650][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.338652][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.338655][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.338657][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 16.338660][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.338662][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.338665][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.338672][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.338676][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.338681][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.338683][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.338686][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.338692][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.338695][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.338699][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.338702][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.338707][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.338711][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.338717][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.338719][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.338722][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.338726][    C3]  </IRQ>
[   16.338727][    C3]  <TASK>
[ 16.338728][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.338731][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.338735][ 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
[   16.338738][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000242
[   16.338741][    C3] RAX: 000000000004113d RBX: 1ffff9200002afc1 RCX: ffffffff96f905d9
[   16.338743][    C3] RDX: 0000000000000000 RSI: ffffffff97a8f4e4 RDI: ffffffff97253be0
[   16.338744][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c366fa
[   16.338746][    C3] R10: ffff8880361b37d3 R11: ffffffff97c11288 R12: 0000000000000000
[   16.338747][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 16.338751][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.338756][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.338758][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.338761][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.338764][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.338768][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.338772][ C3] do_idle (kernel/sched/idle.c:325) 
[ 16.338775][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.338778][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.338781][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 16.338785][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   18.803505][    C2] INFO: lockdep is turned off.
| [   18.803690][    C2] Preemption disabled at:
| [ 18.803692][ C2] 0x0 
| [   18.804033][    C2] Tainted: [W]=WARN
[   18.804034][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.804037][    C2] Call Trace:
[   18.804039][    C2]  <IRQ>
[ 18.804041][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 18.804052][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 18.804061][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 18.804067][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 18.804070][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 18.804076][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.804082][ 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) 
[ 18.804089][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 18.804092][ 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) 
[ 18.804095][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 18.804102][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 18.804106][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 18.804113][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 18.804117][ 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) 
[ 18.804124][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.804128][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 18.804131][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 18.804138][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 18.804144][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.804149][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 18.804152][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 18.804155][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.804158][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.804162][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 18.804165][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.804167][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.804172][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 18.804179][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 18.804184][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.804189][ C2] __put_net (net/core/net_namespace.c:732) 
[ 18.804193][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 18.804197][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.804200][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.804205][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 18.804209][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 18.804216][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.804223][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 18.804228][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 18.804233][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 18.804236][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 18.804239][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   18.804246][    C2]  </IRQ>
[   18.804247][    C2]  <TASK>
[ 18.804249][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.804252][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 18.804256][ 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
[   18.804259][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   18.804264][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffff96f905d9
[   18.804266][    C2] RDX: ffffed1006c266fb RSI: ffffffff97253b60 RDI: ffffffff9478d18f
[   18.804268][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c266fa
[   18.804270][    C2] R10: ffff8880361337d3 R11: ffff888005240558 R12: 0000000000000000
[   18.804272][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 18.804276][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 18.804280][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.804284][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 18.804286][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.804289][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.804292][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 18.804296][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 18.804301][ C2] do_idle (kernel/sched/idle.c:325) 
[ 18.804304][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.804307][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.804310][ C2] ? __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