======================================
| [   14.620425][    C3] 1 lock held by swapper/3/0:
| [ 14.620609][ C3] #0: ffffffff9af774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   14.620940][    C3]
| [   14.620940][    C3] stack backtrace:
[   14.621174][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.621175][    C3] Call Trace:
[   14.621177][    C3]  <IRQ>
[ 14.621179][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 14.621185][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 14.621190][ C3] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 14.621194][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 14.621199][ C3] ? save_trace (kernel/locking/lockdep.c:595) 
[ 14.621205][ C3] mark_lock (kernel/locking/lockdep.c:4756) 
[ 14.621208][ C3] mark_usage (kernel/locking/lockdep.c:4645) 
[ 14.621211][ C3] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 14.621214][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 14.621218][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 14.621221][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 14.621225][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 14.621230][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 14.621232][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 14.621237][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 14.621240][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 14.621244][ C3] simple_pin_fs (fs/libfs.c:1067) 
[ 14.621247][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 14.621251][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 14.621256][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 14.621260][ 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) 
[ 14.621265][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.621268][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 14.621271][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 14.621274][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 14.621279][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.621283][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.621286][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.621288][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.621291][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.621295][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 14.621297][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.621299][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.621303][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 14.621310][ C3] __put_net (net/core/net_namespace.c:732) 
[ 14.621314][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 14.621318][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.621320][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.621324][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 14.621328][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 14.621331][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 14.621335][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 14.621338][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 14.621342][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 14.621347][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 14.621352][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 14.621355][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 14.621358][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   14.621362][    C3]  </IRQ>
[   14.621363][    C3]  <TASK>
[ 14.621364][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.621367][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.621371][ 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
[   14.621374][    C3] RSP: 0000:ffffc90000157de8 EFLAGS: 00000242
[   14.621377][    C3] RAX: 000000000003cae5 RBX: 1ffff9200002afc1 RCX: ffffffff99f905d9
[   14.621379][    C3] RDX: 0000000000000000 RSI: ffffffff9aa8f4e4 RDI: ffffffff9a253be0
[   14.621381][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c366fa
[   14.621382][    C3] R10: ffff8880361b37d3 R11: ffffffff9ac11288 R12: 0000000000000000
[   14.621384][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 14.621388][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 14.621393][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.621395][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.621398][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.621401][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 14.621405][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 14.621409][ C3] do_idle (kernel/sched/idle.c:325) 
[ 14.621413][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.621416][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.621418][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 14.621423][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   14.636975][    C3] RCU nest depth: 0, expected: 0
| [   14.637162][    C3] INFO: lockdep is turned off.
| [   14.637335][    C3] Preemption disabled at:
| [ 14.637337][ C3] 0x0 
[   14.637648][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.637650][    C3] Call Trace:
[   14.637651][    C3]  <IRQ>
[ 14.637653][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 14.637659][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 14.637666][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 14.637670][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 14.637673][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 14.637676][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 14.637681][ 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) 
[ 14.637686][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 14.637689][ 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) 
[ 14.637692][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 14.637698][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 14.637700][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 14.637705][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 14.637709][ 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) 
[ 14.637712][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.637715][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 14.637719][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 14.637723][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 14.637727][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.637730][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.637734][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.637736][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.637739][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.637742][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 14.637744][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.637747][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.637750][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 14.637756][ C3] __put_net (net/core/net_namespace.c:732) 
[ 14.637759][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 14.637763][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.637766][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.637769][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 14.637774][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 14.637778][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 14.637782][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 14.637785][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 14.637790][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 14.637794][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 14.637799][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 14.637802][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 14.637805][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   14.637808][    C3]  </IRQ>
[   14.637809][    C3]  <TASK>
[ 14.637811][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.637814][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.637818][ 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
[   14.637820][    C3] RSP: 0000:ffffc90000157de8 EFLAGS: 00000242
[   14.637823][    C3] RAX: 000000000003cae5 RBX: 1ffff9200002afc1 RCX: ffffffff99f905d9
[   14.637825][    C3] RDX: 0000000000000000 RSI: ffffffff9aa8f4e4 RDI: ffffffff9a253be0
[   14.637826][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c366fa
[   14.637828][    C3] R10: ffff8880361b37d3 R11: ffffffff9ac11288 R12: 0000000000000000
[   14.637830][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 14.637833][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 14.637838][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.637840][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.637843][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.637846][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 14.637850][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 14.637854][ C3] do_idle (kernel/sched/idle.c:325) 
[ 14.637858][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.637861][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.637863][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 14.637868][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.580580][    C2] INFO: lockdep is turned off.
| [   16.580775][    C2] Preemption disabled at:
| [ 16.580779][ C2] 0x0 
| [   16.581166][    C2] Tainted: [W]=WARN
[   16.581168][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.581173][    C2] Call Trace:
[   16.581178][    C2]  <IRQ>
[ 16.581180][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.581218][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 16.581237][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.581243][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.581246][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.581261][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.581270][ 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) 
[ 16.581281][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.581284][ 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) 
[ 16.581287][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.581298][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.581301][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.581316][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.581320][ 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) 
[ 16.581335][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.581340][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.581343][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.581357][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.581364][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.581375][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.581379][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.581381][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.581384][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.581389][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 16.581391][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.581394][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.581402][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.581414][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 16.581421][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.581426][ C2] __put_net (net/core/net_namespace.c:732) 
[ 16.581431][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.581435][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.581438][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.581442][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.581446][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 16.581458][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.581465][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.581469][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 16.581474][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.581477][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.581480][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.581484][    C2]  </IRQ>
[   16.581485][    C2]  <TASK>
[ 16.581487][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.581490][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.581496][ 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
[   16.581500][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   16.581508][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffff99f905d9
[   16.581511][    C2] RDX: ffffed1006c266fb RSI: ffffffff9a253b60 RDI: ffffffff9778d18f
[   16.581513][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c266fa
[   16.581514][    C2] R10: ffff8880361337d3 R11: ffffffff9d871d70 R12: 0000000000000000
[   16.581517][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 16.581521][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.581524][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.581528][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.581530][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.581533][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.581536][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.581539][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.581544][ C2] do_idle (kernel/sched/idle.c:325) 
[ 16.581547][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.581550][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.581553][ 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