======================================
| [   16.165915][    C3] 1 lock held by swapper/3/0:
| [ 16.166112][ C3] #0: ffffffff8e9774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   16.166464][    C3]
| [   16.166464][    C3] stack backtrace:
[   16.166714][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.166716][    C3] Call Trace:
[   16.166718][    C3]  <IRQ>
[ 16.166720][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.166727][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 16.166731][ C3] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 16.166735][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 16.166740][ C3] ? save_trace (kernel/locking/lockdep.c:595) 
[ 16.166746][ C3] mark_lock (kernel/locking/lockdep.c:4756) 
[ 16.166750][ C3] mark_usage (kernel/locking/lockdep.c:4645) 
[ 16.166753][ C3] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 16.166756][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.166760][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 16.166763][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.166767][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.166771][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 16.166774][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.166778][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 16.166782][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.166785][ C3] simple_pin_fs (fs/libfs.c:1067) 
[ 16.166789][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 16.166792][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.166798][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.166801][ C3] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.166807][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.166810][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.166813][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.166816][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.166821][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.166824][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.166828][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.166830][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.166833][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.166836][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 16.166838][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.166841][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.166844][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.166852][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.166856][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.166860][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.166863][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.166866][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.166870][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.166873][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.166877][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.166880][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.166885][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.166889][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.166894][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.166897][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.166900][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.166904][    C3]  </IRQ>
[   16.166905][    C3]  <TASK>
[ 16.166906][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.166909][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.166913][ C3] Code: 92 b5 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 37 10 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	92                   	xchg   %eax,%edx
   1:	b5 00                	mov    $0x0,%ch
   3:	c3                   	ret
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 37 10 00 	verw   0x103783(%rip)        # 0x1037ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   16.166916][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   16.166919][    C3] RAX: 000000000004e94b RBX: 1ffff9200002afc1 RCX: ffffffff8d9905d9
[   16.166921][    C3] RDX: 0000000000000000 RSI: ffffffff8e48f4e4 RDI: ffffffff8dc53be0
[   16.166923][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c366fa
[   16.166925][    C3] R10: ffff8880361b37d3 R11: ffffffff8e611288 R12: 0000000000000000
[   16.166926][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 16.166930][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.166935][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.166938][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.166940][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.166943][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.166947][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.166951][ C3] do_idle (kernel/sched/idle.c:325) 
[ 16.166955][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.166958][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.166961][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 16.166965][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.184402][    C3] RCU nest depth: 0, expected: 0
| [   16.184696][    C3] INFO: lockdep is turned off.
| [   16.184866][    C3] Preemption disabled at:
| [ 16.184868][ C3] 0x0 
[   16.185175][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.185176][    C3] Call Trace:
[   16.185178][    C3]  <IRQ>
[ 16.185180][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.185187][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 16.185194][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.185198][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.185201][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.185204][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.185209][ C3] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 16.185215][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.185217][ C3] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 16.185220][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.185226][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.185229][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.185234][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.185237][ C3] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.185242][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.185245][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.185248][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.185251][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.185256][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.185259][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.185262][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.185265][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.185268][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.185270][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 16.185273][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.185275][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.185278][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.185285][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.185289][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.185293][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.185295][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.185299][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.185304][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.185307][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.185311][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.185314][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.185319][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.185323][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.185329][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.185331][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.185334][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.185338][    C3]  </IRQ>
[   16.185339][    C3]  <TASK>
[ 16.185340][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.185343][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.185347][ C3] Code: 92 b5 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 37 10 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	92                   	xchg   %eax,%edx
   1:	b5 00                	mov    $0x0,%ch
   3:	c3                   	ret
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 37 10 00 	verw   0x103783(%rip)        # 0x1037ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   16.185350][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   16.185353][    C3] RAX: 000000000004e94b RBX: 1ffff9200002afc1 RCX: ffffffff8d9905d9
[   16.185355][    C3] RDX: 0000000000000000 RSI: ffffffff8e48f4e4 RDI: ffffffff8dc53be0
[   16.185356][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c366fa
[   16.185358][    C3] R10: ffff8880361b37d3 R11: ffffffff8e611288 R12: 0000000000000000
[   16.185359][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 16.185363][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.185368][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.185370][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.185373][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.185376][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.185380][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.185384][ C3] do_idle (kernel/sched/idle.c:325) 
[ 16.185387][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.185390][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.185393][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 16.185397][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   18.566637][    C2] INFO: lockdep is turned off.
| [   18.566838][    C2] Preemption disabled at:
| [ 18.566840][ C2] 0x0 
| [   18.567208][    C2] Tainted: [W]=WARN
[   18.567210][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.567212][    C2] Call Trace:
[   18.567214][    C2]  <IRQ>
[ 18.567216][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 18.567224][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 18.567231][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 18.567236][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 18.567239][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 18.567243][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.567248][ C2] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 18.567254][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 18.567257][ C2] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 18.567260][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 18.567266][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 18.567269][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 18.567281][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 18.567285][ C2] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 18.567290][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.567293][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 18.567297][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 18.567301][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 18.567306][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.567310][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 18.567313][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 18.567316][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.567319][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.567322][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 18.567325][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.567327][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.567331][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 18.567336][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 18.567340][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.567345][ C2] __put_net (net/core/net_namespace.c:732) 
[ 18.567348][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 18.567352][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.567355][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.567359][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 18.567363][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 18.567368][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.567374][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 18.567379][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 18.567384][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 18.567387][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 18.567390][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   18.567393][    C2]  </IRQ>
[   18.567395][    C2]  <TASK>
[ 18.567396][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.567399][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 18.567404][ C2] Code: 92 b5 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 37 10 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	92                   	xchg   %eax,%edx
   1:	b5 00                	mov    $0x0,%ch
   3:	c3                   	ret
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 37 10 00 	verw   0x103783(%rip)        # 0x1037ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   18.567406][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   18.567410][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffff8d9905d9
[   18.567412][    C2] RDX: ffffed1006c266fb RSI: ffffffff8dc53b60 RDI: ffffffff8b18d18f
[   18.567414][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c266fa
[   18.567416][    C2] R10: ffff8880361337d3 R11: ffffffff912d1410 R12: 0000000000000000
[   18.567417][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 18.567421][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 18.567424][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.567430][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 18.567432][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.567435][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.567438][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 18.567442][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 18.567446][ C2] do_idle (kernel/sched/idle.c:325) 
[ 18.567449][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.567452][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.567455][ 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