======================================
| [   15.368588][    C2] 1 lock held by swapper/2/0:
| [ 15.368774][ C2] #0: ffffffff8cb774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   15.369112][    C2]
| [   15.369112][    C2] stack backtrace:
[   15.369347][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.369349][    C2] Call Trace:
[   15.369351][    C2]  <IRQ>
[ 15.369354][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.369360][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 15.369366][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 15.369370][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 15.369374][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 15.369380][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 15.369383][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 15.369386][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 15.369390][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.369394][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 15.369397][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.369401][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.369406][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.369408][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.369413][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 15.369416][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.369419][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 15.369423][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 15.369427][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.369433][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.369437][ 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) 
[ 15.369442][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.369445][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.369448][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.369451][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.369456][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.369459][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.369463][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.369465][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.369468][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.369471][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 15.369473][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.369476][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.369479][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 15.369487][ C2] __put_net (net/core/net_namespace.c:732) 
[ 15.369491][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.369495][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.369497][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.369501][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.369505][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.369508][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.369512][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.369515][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.369520][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.369524][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 15.369529][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.369532][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.369535][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.369539][    C2]  </IRQ>
[   15.369540][    C2]  <TASK>
[ 15.369541][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.369544][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.369548][ 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
[   15.369551][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   15.369554][    C2] RAX: 0000000000045287 RBX: 1ffff92000028fc1 RCX: ffffffff8bb905d9
[   15.369556][    C2] RDX: 0000000000000000 RSI: ffffffff8c68f4e4 RDI: ffffffff8be53be0
[   15.369558][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   15.369559][    C2] R10: ffff8880361337d3 R11: ffffffff8c811288 R12: 0000000000000000
[   15.369561][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 15.369565][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.369570][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.369572][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.369575][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.369578][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.369582][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.369587][ C2] do_idle (kernel/sched/idle.c:325) 
[ 15.369590][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.369593][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.369596][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 15.369601][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   15.386126][    C2] RCU nest depth: 0, expected: 0
| [   15.386328][    C2] INFO: lockdep is turned off.
| [   15.386516][    C2] Preemption disabled at:
| [ 15.386518][ C2] 0x0 
[   15.386995][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.386997][    C2] Call Trace:
[   15.386998][    C2]  <IRQ>
[ 15.387000][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.387008][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 15.387015][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.387019][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.387022][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 15.387026][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.387031][ 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) 
[ 15.387036][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 15.387039][ 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) 
[ 15.387042][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.387047][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.387050][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.387056][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.387059][ 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) 
[ 15.387064][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.387068][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.387071][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.387075][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.387080][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.387084][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.387087][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.387090][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.387092][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.387096][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 15.387098][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.387100][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.387104][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 15.387111][ C2] __put_net (net/core/net_namespace.c:732) 
[ 15.387114][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.387119][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.387121][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.387124][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.387130][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.387133][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.387138][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.387140][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.387145][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.387150][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 15.387155][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.387158][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.387161][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.387164][    C2]  </IRQ>
[   15.387165][    C2]  <TASK>
[ 15.387167][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.387170][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.387174][ 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
[   15.387176][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   15.387179][    C2] RAX: 0000000000045287 RBX: 1ffff92000028fc1 RCX: ffffffff8bb905d9
[   15.387181][    C2] RDX: 0000000000000000 RSI: ffffffff8c68f4e4 RDI: ffffffff8be53be0
[   15.387183][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   15.387185][    C2] R10: ffff8880361337d3 R11: ffffffff8c811288 R12: 0000000000000000
[   15.387186][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 15.387190][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.387195][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.387198][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.387200][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.387203][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.387207][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.387211][ C2] do_idle (kernel/sched/idle.c:325) 
[ 15.387215][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.387217][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.387220][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 15.387225][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   17.265701][    C2] INFO: lockdep is turned off.
| [   17.265906][    C2] Preemption disabled at:
| [ 17.265908][ C2] 0x0 
| [   17.266285][    C2] Tainted: [W]=WARN
[   17.266287][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.266289][    C2] Call Trace:
[   17.266291][    C2]  <IRQ>
[ 17.266293][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.266301][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 17.266309][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.266314][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.266317][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 17.266321][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.266326][ 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) 
[ 17.266332][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 17.266335][ 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) 
[ 17.266338][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.266344][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.266347][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 17.266353][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 17.266356][ 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) 
[ 17.266362][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.266367][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 17.266372][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.266378][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.266386][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.266390][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.266394][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.266396][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.266399][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.266403][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 17.266405][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.266407][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.266411][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 17.266416][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 17.266420][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.266425][ C2] __put_net (net/core/net_namespace.c:732) 
[ 17.266428][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.266432][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.266435][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.266440][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.266443][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 17.266449][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.266455][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.266459][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 17.266465][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.266468][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.266470][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.266474][    C2]  </IRQ>
[   17.266476][    C2]  <TASK>
[ 17.266477][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.266481][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.266485][ 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
[   17.266488][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   17.266492][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffff8bb905d9
[   17.266494][    C2] RDX: ffffed1006c266fb RSI: ffffffff8be53b60 RDI: ffffffff8938d18f
[   17.266496][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c266fa
[   17.266498][    C2] R10: ffff8880361337d3 R11: ffff88800aa5a818 R12: 0000000000000000
[   17.266500][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 17.266504][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.266507][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.266511][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.266513][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.266516][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.266519][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.266523][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.266527][ C2] do_idle (kernel/sched/idle.c:325) 
[ 17.266540][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.266543][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.266546][ 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