======================================
| [   15.094282][    C2] 1 lock held by swapper/2/0:
| [ 15.094480][ C2] #0: ffffffffb81774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   15.094834][    C2]
| [   15.094834][    C2] stack backtrace:
[   15.095083][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.095086][    C2] Call Trace:
[   15.095088][    C2]  <IRQ>
[ 15.095091][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.095098][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 15.095103][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 15.095107][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 15.095113][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 15.095121][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 15.095125][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 15.095128][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 15.095131][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.095135][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 15.095138][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.095143][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.095148][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.095150][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.095155][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 15.095158][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.095162][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 15.095166][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 15.095169][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.095177][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.095180][ 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) 
[ 15.095188][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.095191][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.095194][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.095197][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.095201][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.095205][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.095208][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.095210][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.095213][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.095218][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 15.095220][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.095222][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.095226][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 15.095235][ C2] __put_net (net/core/net_namespace.c:732) 
[ 15.095240][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.095244][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.095246][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.095250][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.095254][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.095257][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.095261][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.095264][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.095269][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.095274][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 15.095279][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.095282][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.095285][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.095289][    C2]  </IRQ>
[   15.095290][    C2]  <TASK>
[ 15.095291][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.095294][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.095298][ 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
[   15.095302][    C2] RSP: 0000:ffffc90000147de8 EFLAGS: 00000242
[   15.095305][    C2] RAX: 0000000000048a89 RBX: 1ffff92000028fc1 RCX: ffffffffb71905d9
[   15.095307][    C2] RDX: 0000000000000000 RSI: ffffffffb7c8f4e4 RDI: ffffffffb7453be0
[   15.095309][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   15.095310][    C2] R10: ffff8880361337d3 R11: ffffffffb7e11288 R12: 0000000000000000
[   15.095312][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 15.095316][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.095321][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.095323][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.095326][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.095329][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.095333][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.095338][ C2] do_idle (kernel/sched/idle.c:325) 
[ 15.095341][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.095344][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.095347][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 15.095352][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   15.111971][    C2] RCU nest depth: 0, expected: 0
| [   15.112172][    C2] INFO: lockdep is turned off.
| [   15.112369][    C2] Preemption disabled at:
| [ 15.112371][ C2] 0x0 
[   15.112736][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.112738][    C2] Call Trace:
[   15.112739][    C2]  <IRQ>
[ 15.112741][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.112750][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 15.112757][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.112762][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.112765][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 15.112770][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.112775][ 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) 
[ 15.112782][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 15.112785][ 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) 
[ 15.112788][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.112794][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.112797][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.112804][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.112808][ 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) 
[ 15.112814][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.112817][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.112821][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.112826][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.112831][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.112835][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.112838][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.112841][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.112843][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.112847][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 15.112849][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.112852][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.112855][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 15.112864][ C2] __put_net (net/core/net_namespace.c:732) 
[ 15.112869][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.112873][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.112876][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.112879][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.112885][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.112888][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.112894][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.112897][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.112902][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.112907][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 15.112912][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.112915][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.112918][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.112921][    C2]  </IRQ>
[   15.112922][    C2]  <TASK>
[ 15.112924][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.112927][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.112931][ 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
[   15.112933][    C2] RSP: 0000:ffffc90000147de8 EFLAGS: 00000242
[   15.112936][    C2] RAX: 0000000000048a89 RBX: 1ffff92000028fc1 RCX: ffffffffb71905d9
[   15.112938][    C2] RDX: 0000000000000000 RSI: ffffffffb7c8f4e4 RDI: ffffffffb7453be0
[   15.112940][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   15.112942][    C2] R10: ffff8880361337d3 R11: ffffffffb7e11288 R12: 0000000000000000
[   15.112943][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 15.112947][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.112952][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.112954][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.112957][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.112960][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.112970][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.112974][ C2] do_idle (kernel/sched/idle.c:325) 
[ 15.112977][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.112980][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.112983][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 15.112988][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.778714][    C0] INFO: lockdep is turned off.
| [   16.778913][    C0] Preemption disabled at:
| [ 16.778915][ C0] schedule_preempt_disabled (kernel/sched/core.c:6933) 
| [   16.779369][    C0] Tainted: [W]=WARN
[   16.779371][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.779372][    C0] Call Trace:
[   16.779375][    C0]  <IRQ>
[ 16.779377][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.779385][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 16.779398][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.779403][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.779406][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.779413][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.779419][ C0] ? 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) 
[ 16.779428][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.779430][ C0] ? 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) 
[ 16.779434][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.779441][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.779444][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.779453][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.779456][ C0] ? __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) 
[ 16.779464][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.779468][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.779471][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.779477][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.779484][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.779489][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.779492][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.779495][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.779498][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.779502][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 16.779505][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.779507][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.779510][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.779518][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 16.779523][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.779528][ C0] __put_net (net/core/net_namespace.c:732) 
[ 16.779533][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.779537][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.779539][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.779544][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.779547][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 16.779553][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.779561][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.779567][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 16.779572][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.779575][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.779578][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.779582][    C0]  </IRQ>
[   16.779583][    C0]  <TASK>
[ 16.779585][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.779587][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.779591][ C0] 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
[   16.779594][    C0] RSP: 0018:ffffffffb7e07df8 EFLAGS: 00000246
[   16.779598][    C0] RAX: 0000000000000000 RBX: 1ffffffff6fc0fc3 RCX: ffffffffb71905d9
[   16.779600][    C0] RDX: ffffed1006c066fb RSI: ffffffffb7453b60 RDI: ffffffffb498d18f
[   16.779602][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c066fa
[   16.779604][    C0] R10: ffff8880360337d3 R11: ffff888001becad8 R12: 0000000000000000
[   16.779606][    C0] R13: ffffffffb7e1f240 R14: dffffc0000000000 R15: 0000000000014770
[ 16.779610][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.779613][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.779617][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.779619][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.779622][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.779625][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.779629][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.779636][ C0] do_idle (kernel/sched/idle.c:325) 
[ 16.779639][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.779642][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.779645][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.779649][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 16.779655][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 


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
schedule_preempt_disabled:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal