======================================
| [   16.240296][    C3] 1 lock held by swapper/3/0:
| [ 16.240630][ C3] #0: ffffffff8e1774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   16.241235][    C3]
| [   16.241235][    C3] stack backtrace:
[   16.241654][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.241657][    C3] Call Trace:
[   16.241660][    C3]  <IRQ>
[ 16.241664][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.241673][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 16.241682][ C3] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 16.241690][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 16.241697][ C3] ? save_trace (kernel/locking/lockdep.c:595) 
[ 16.241706][ C3] mark_lock (kernel/locking/lockdep.c:4756) 
[ 16.241713][ C3] mark_usage (kernel/locking/lockdep.c:4645) 
[ 16.241718][ C3] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 16.241724][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.241731][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 16.241737][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.241744][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.241750][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 16.241754][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.241762][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 16.241767][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.241772][ C3] simple_pin_fs (fs/libfs.c:1067) 
[ 16.241777][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 16.241783][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.241791][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.241797][ 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) 
[ 16.241805][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.241810][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.241815][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.241820][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.241827][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.241832][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.241838][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.241842][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.241847][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.241852][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 16.241856][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.241860][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.241866][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.241877][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.241883][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.241890][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.241895][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.241901][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.241909][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.241915][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.241921][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.241926][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.241934][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.241941][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.241950][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.241955][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.241959][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.241966][    C3]  </IRQ>
[   16.241968][    C3]  <TASK>
[ 16.241970][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.241976][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.241982][ 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
[   16.241987][    C3] RSP: 0000:ffffc90000157de8 EFLAGS: 00000242
[   16.241992][    C3] RAX: 000000000004565b RBX: 1ffff9200002afc1 RCX: ffffffff8d1905d9
[   16.241996][    C3] RDX: 0000000000000000 RSI: ffffffff8dc8f4e4 RDI: ffffffff8d453be0
[   16.241999][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c366fa
[   16.242002][    C3] R10: ffff8880361b37d3 R11: ffffffff8de11288 R12: 0000000000000000
[   16.242006][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 16.242013][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.242021][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.242026][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.242031][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.242036][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.242043][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.242051][ C3] do_idle (kernel/sched/idle.c:325) 
[ 16.242057][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.242062][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.242068][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 16.242076][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.273122][    C3] RCU nest depth: 0, expected: 0
| [   16.273445][    C3] INFO: lockdep is turned off.
| [   16.273976][    C3] Preemption disabled at:
| [ 16.273980][ C3] 0x0 
[   16.274533][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.274537][    C3] Call Trace:
[   16.274540][    C3]  <IRQ>
[ 16.274544][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.274553][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 16.274563][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.274569][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.274574][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.274578][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.274586][ 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) 
[ 16.274594][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.274598][ 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) 
[ 16.274604][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.274612][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.274617][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.274626][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.274631][ 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) 
[ 16.274638][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.274644][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.274649][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.274654][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.274661][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.274667][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.274672][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.274676][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.274680][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.274685][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 16.274689][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.274693][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.274699][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.274710][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.274715][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.274722][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.274727][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.274733][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.274742][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.274748][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.274754][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.274759][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.274767][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.274775][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.274785][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.274792][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.274797][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.274803][    C3]  </IRQ>
[   16.274805][    C3]  <TASK>
[ 16.274808][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.274813][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.274819][ 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
[   16.274824][    C3] RSP: 0000:ffffc90000157de8 EFLAGS: 00000242
[   16.274829][    C3] RAX: 000000000004565b RBX: 1ffff9200002afc1 RCX: ffffffff8d1905d9
[   16.274833][    C3] RDX: 0000000000000000 RSI: ffffffff8dc8f4e4 RDI: ffffffff8d453be0
[   16.274836][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c366fa
[   16.274847][    C3] R10: ffff8880361b37d3 R11: ffffffff8de11288 R12: 0000000000000000
[   16.274851][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 16.274858][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.274867][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.274871][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.274876][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.274881][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.274889][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.274896][ C3] do_idle (kernel/sched/idle.c:325) 
[ 16.274902][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.274908][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.274913][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 16.274922][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   18.157300][    C2] INFO: lockdep is turned off.
| [   18.157487][    C2] Preemption disabled at:
| [ 18.157490][ C2] 0x0 
| [   18.157846][    C2] Tainted: [W]=WARN
[   18.157848][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.157850][    C2] Call Trace:
[   18.157852][    C2]  <IRQ>
[ 18.157854][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 18.157866][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 18.157875][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 18.157880][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 18.157883][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 18.157889][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.157895][ 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) 
[ 18.157902][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 18.157905][ 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) 
[ 18.157908][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 18.157915][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 18.157919][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 18.157927][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 18.157931][ 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) 
[ 18.157938][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.157942][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 18.157946][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 18.157952][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 18.157958][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.157963][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 18.157966][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 18.157969][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.157972][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.157976][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 18.157978][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.157981][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.157986][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 18.157993][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 18.157997][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.158002][ C2] __put_net (net/core/net_namespace.c:732) 
[ 18.158006][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 18.158011][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.158013][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.158018][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 18.158022][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.158026][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 18.158031][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 18.158037][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 18.158040][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 18.158042][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   18.158046][    C2]  </IRQ>
[   18.158047][    C2]  <TASK>
[ 18.158049][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.158052][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 18.158057][ 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
[   18.158060][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   18.158065][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffff8d1905d9
[   18.158067][    C2] RDX: ffffed1006c266fb RSI: ffffffff8d453b60 RDI: ffffffff8a98d18f
[   18.158069][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c266fa
[   18.158071][    C2] R10: ffff8880361337d3 R11: ffff888001bdcad8 R12: 0000000000000000
[   18.158073][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 18.158077][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 18.158080][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.158084][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 18.158087][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.158090][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.158093][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 18.158097][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 18.158101][ C2] do_idle (kernel/sched/idle.c:325) 
[ 18.158105][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.158108][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.158110][ 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