======================================
| [   17.548394][    C3] 1 lock held by swapper/3/0:
| [ 17.548597][ C3] #0: ffffffffa0b774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   17.548954][    C3]
| [   17.548954][    C3] stack backtrace:
[   17.549208][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.549210][    C3] Call Trace:
[   17.549212][    C3]  <IRQ>
[ 17.549214][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.549221][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 17.549226][ C3] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 17.549230][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 17.549235][ C3] ? save_trace (kernel/locking/lockdep.c:595) 
[ 17.549241][ C3] mark_lock (kernel/locking/lockdep.c:4756) 
[ 17.549244][ C3] mark_usage (kernel/locking/lockdep.c:4645) 
[ 17.549247][ C3] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 17.549250][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.549255][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 17.549258][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 17.549263][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.549267][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 17.549270][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 17.549274][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 17.549277][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 17.549281][ C3] simple_pin_fs (fs/libfs.c:1067) 
[ 17.549285][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 17.549288][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 17.549294][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 17.549298][ 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) 
[ 17.549303][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.549306][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 17.549309][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.549312][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.549317][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.549321][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.549324][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.549327][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.549329][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.549333][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 17.549335][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.549338][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.549341][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 17.549349][ C3] __put_net (net/core/net_namespace.c:732) 
[ 17.549353][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.549357][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.549359][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.549363][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.549367][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.549370][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 17.549374][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 17.549376][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.549381][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.549386][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 17.549391][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.549394][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.549396][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.549400][    C3]  </IRQ>
[   17.549402][    C3]  <TASK>
[ 17.549403][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.549406][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.549410][ 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
[   17.549412][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   17.549416][    C3] RAX: 000000000003f117 RBX: 1ffff9200002afc1 RCX: ffffffff9fb905d9
[   17.549418][    C3] RDX: 0000000000000000 RSI: ffffffffa068f4e4 RDI: ffffffff9fe53be0
[   17.549420][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005eb66fa
[   17.549421][    C3] R10: ffff88802f5b37d3 R11: ffffffffa0811288 R12: 0000000000000000
[   17.549423][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 17.549427][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.549432][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.549434][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.549437][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.549440][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.549444][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.549448][ C3] do_idle (kernel/sched/idle.c:325) 
[ 17.549452][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.549455][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.549457][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 17.549462][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   17.567395][    C3] RCU nest depth: 0, expected: 0
| [   17.567684][    C3] INFO: lockdep is turned off.
| [   17.567860][    C3] Preemption disabled at:
| [ 17.567862][ C3] 0x0 
[   17.568311][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.568313][    C3] Call Trace:
[   17.568314][    C3]  <IRQ>
[ 17.568316][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.568325][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 17.568331][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.568336][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.568339][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 17.568343][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.568348][ 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) 
[ 17.568354][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 17.568357][ 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) 
[ 17.568360][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.568366][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.568369][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 17.568376][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 17.568380][ 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) 
[ 17.568388][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.568392][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 17.568395][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.568400][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.568405][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.568409][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.568412][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.568415][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.568418][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.568421][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 17.568424][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.568426][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.568429][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 17.568438][ C3] __put_net (net/core/net_namespace.c:732) 
[ 17.568441][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.568445][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.568448][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.568451][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.568457][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.568460][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 17.568465][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 17.568468][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.568473][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.568477][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 17.568482][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.568485][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.568488][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.568492][    C3]  </IRQ>
[   17.568493][    C3]  <TASK>
[ 17.568494][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.568497][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.568501][ 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
[   17.568504][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   17.568507][    C3] RAX: 000000000003f117 RBX: 1ffff9200002afc1 RCX: ffffffff9fb905d9
[   17.568509][    C3] RDX: 0000000000000000 RSI: ffffffffa068f4e4 RDI: ffffffff9fe53be0
[   17.568510][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005eb66fa
[   17.568512][    C3] R10: ffff88802f5b37d3 R11: ffffffffa0811288 R12: 0000000000000000
[   17.568514][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 17.568517][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.568522][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.568525][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.568527][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.568531][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.568535][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.568539][ C3] do_idle (kernel/sched/idle.c:325) 
[ 17.568542][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.568545][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.568548][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 17.568553][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   20.204367][    C2] INFO: lockdep is turned off.
| [   20.204591][    C2] Preemption disabled at:
| [ 20.204593][ C2] 0x0 
| [   20.204985][    C2] Tainted: [W]=WARN
[   20.204987][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.204989][    C2] Call Trace:
[   20.204991][    C2]  <IRQ>
[ 20.204993][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 20.205003][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 20.205010][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 20.205015][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 20.205018][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 20.205023][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.205030][ 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) 
[ 20.205038][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 20.205043][ 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) 
[ 20.205048][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 20.205055][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 20.205058][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 20.205064][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 20.205068][ 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) 
[ 20.205073][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 20.205077][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 20.205080][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 20.205085][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 20.205090][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 20.205094][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 20.205098][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 20.205100][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 20.205103][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.205107][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 20.205109][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 20.205111][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 20.205115][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 20.205120][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 20.205124][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.205129][ C2] __put_net (net/core/net_namespace.c:732) 
[ 20.205132][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 20.205136][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 20.205139][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 20.205143][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 20.205147][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 20.205153][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.205159][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 20.205164][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 20.205169][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 20.205172][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 20.205175][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   20.205179][    C2]  </IRQ>
[   20.205180][    C2]  <TASK>
[ 20.205182][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 20.205184][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 20.205189][ 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
[   20.205192][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   20.205196][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffff9fb905d9
[   20.205198][    C2] RDX: ffffed1005ea66fb RSI: ffffffff9fe53b60 RDI: ffffffff9d38d18f
[   20.205200][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1005ea66fa
[   20.205202][    C2] R10: ffff88802f5337d3 R11: ffff888001ee4ad8 R12: 0000000000000000
[   20.205203][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 20.205207][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 20.205211][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.205214][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 20.205217][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 20.205220][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.205223][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 20.205226][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 20.205231][ C2] do_idle (kernel/sched/idle.c:325) 
[ 20.205234][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 20.205237][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 20.205240][ 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