======================================
| [   16.478879][    C2] 1 lock held by swapper/2/0:
| [ 16.479086][ C2] #0: ffffffffadf774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   16.479446][    C2]
| [   16.479446][    C2] stack backtrace:
[   16.479701][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.479703][    C2] Call Trace:
[   16.479705][    C2]  <IRQ>
[ 16.479708][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.479716][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 16.479720][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 16.479725][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 16.479731][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 16.479739][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 16.479743][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 16.479746][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 16.479749][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.479753][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 16.479756][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.479761][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.479765][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 16.479768][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.479773][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 16.479776][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.479780][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 16.479784][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 16.479787][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.479795][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.479798][ 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) 
[ 16.479805][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.479808][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.479811][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.479814][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.479819][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.479823][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.479827][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.479829][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.479832][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.479835][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 16.479837][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.479840][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.479843][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.479852][ C2] __put_net (net/core/net_namespace.c:732) 
[ 16.479857][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.479861][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.479863][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.479867][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.479871][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.479874][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.479878][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.479881][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.479886][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.479891][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 16.479896][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.479899][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.479902][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.479906][    C2]  </IRQ>
[   16.479907][    C2]  <TASK>
[ 16.479908][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.479911][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.479916][ 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
[   16.479919][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   16.479923][    C2] RAX: 0000000000046ccf RBX: 1ffff92000028fc1 RCX: ffffffffacf905d9
[   16.479925][    C2] RDX: 0000000000000000 RSI: ffffffffada8f4e4 RDI: ffffffffad253be0
[   16.479926][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   16.479928][    C2] R10: ffff8880361337d3 R11: ffffffffadc11288 R12: 0000000000000000
[   16.479930][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 16.479934][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.479938][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.479941][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.479944][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.479947][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.479951][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.479955][ C2] do_idle (kernel/sched/idle.c:325) 
[ 16.479958][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.479961][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.479964][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 16.479969][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.497417][    C2] RCU nest depth: 0, expected: 0
| [   16.497624][    C2] INFO: lockdep is turned off.
| [   16.497828][    C2] Preemption disabled at:
| [ 16.497830][ C2] 0x0 
[   16.498211][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.498213][    C2] Call Trace:
[   16.498215][    C2]  <IRQ>
[ 16.498218][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.498227][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 16.498235][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.498240][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.498243][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.498247][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.498253][ 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) 
[ 16.498260][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.498263][ 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) 
[ 16.498267][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.498273][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.498276][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.498283][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.498286][ 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) 
[ 16.498293][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.498296][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.498299][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.498305][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.498311][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.498315][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.498319][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.498322][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.498325][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.498328][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 16.498331][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.498333][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.498337][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.498345][ C2] __put_net (net/core/net_namespace.c:732) 
[ 16.498349][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.498353][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.498356][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.498359][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.498366][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.498369][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.498374][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.498377][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.498382][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.498387][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 16.498392][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.498395][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.498398][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.498402][    C2]  </IRQ>
[   16.498403][    C2]  <TASK>
[ 16.498404][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.498407][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.498412][ 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
[   16.498414][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   16.498418][    C2] RAX: 0000000000046ccf RBX: 1ffff92000028fc1 RCX: ffffffffacf905d9
[   16.498420][    C2] RDX: 0000000000000000 RSI: ffffffffada8f4e4 RDI: ffffffffad253be0
[   16.498422][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   16.498424][    C2] R10: ffff8880361337d3 R11: ffffffffadc11288 R12: 0000000000000000
[   16.498426][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 16.498430][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.498434][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.498437][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.498440][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.498443][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.498446][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.498451][ C2] do_idle (kernel/sched/idle.c:325) 
[ 16.498454][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.498457][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.498461][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 16.498465][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   18.720193][    C3] INFO: lockdep is turned off.
| [   18.720383][    C3] Preemption disabled at:
| [ 18.720385][ C3] 0x0 
| [   18.720723][    C3] Tainted: [W]=WARN
[   18.720725][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.720727][    C3] Call Trace:
[   18.720730][    C3]  <IRQ>
[ 18.720732][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 18.720743][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 18.720752][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 18.720758][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 18.720761][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 18.720766][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.720773][ 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) 
[ 18.720781][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 18.720784][ 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) 
[ 18.720787][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 18.720794][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 18.720797][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 18.720805][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 18.720809][ 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) 
[ 18.720816][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.720820][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 18.720823][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 18.720829][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 18.720835][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.720841][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 18.720844][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 18.720847][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.720850][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.720854][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 18.720856][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.720859][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.720864][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 18.720870][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 18.720875][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.720880][ C3] __put_net (net/core/net_namespace.c:732) 
[ 18.720884][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 18.720890][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.720893][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.720898][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 18.720901][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 18.720908][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.720915][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 18.720920][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 18.720925][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 18.720928][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 18.720931][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   18.720935][    C3]  </IRQ>
[   18.720937][    C3]  <TASK>
[ 18.720939][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.720942][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 18.720947][ 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
[   18.720949][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   18.720954][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffffacf905d9
[   18.720956][    C3] RDX: ffffed1006c366fb RSI: ffffffffad253b60 RDI: ffffffffaa78d18f
[   18.720958][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c366fa
[   18.720960][    C3] R10: ffff8880361b37d3 R11: ffffffffb0930a68 R12: 0000000000000000
[   18.720962][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 18.720966][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 18.720969][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.720973][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 18.720976][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.720978][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.720981][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 18.720985][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 18.720990][ C3] do_idle (kernel/sched/idle.c:325) 
[ 18.720993][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.720996][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.720999][ 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