======================================
| [   21.633746][    C0] 1 lock held by swapper/0/0:
| [ 21.633957][ C0] #0: ffffffff8d7774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   21.634328][    C0]
| [   21.634328][    C0] stack backtrace:
[   21.634588][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.634591][    C0] Call Trace:
[   21.634592][    C0]  <IRQ>
[ 21.634594][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 21.634600][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 21.634605][ C0] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 21.634608][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/bpf/core.c:774) 
[ 21.634614][ C0] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.634618][ C0] ? save_trace (kernel/locking/lockdep.c:595) 
[ 21.634624][ C0] mark_lock (kernel/locking/lockdep.c:4756) 
[ 21.634629][ C0] mark_usage (kernel/locking/lockdep.c:4645) 
[ 21.634631][ C0] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 21.634635][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.634639][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 21.634642][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 21.634646][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.634650][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 21.634653][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 21.634658][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 21.634661][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 21.634664][ C0] simple_pin_fs (fs/libfs.c:1067) 
[ 21.634668][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 21.634671][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 21.634677][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 21.634681][ 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) 
[ 21.634686][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 21.634689][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 21.634692][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 21.634695][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 21.634699][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 21.634703][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 21.634706][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 21.634709][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 21.634711][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 21.634715][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 21.634717][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 21.634719][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 21.634722][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 21.634728][ C0] __put_net (net/core/net_namespace.c:732) 
[ 21.634731][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 21.634735][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 21.634738][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 21.634742][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 21.634745][ C0] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.634749][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.634751][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 21.634756][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 21.634761][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 21.634766][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 21.634769][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 21.634772][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   21.634775][    C0]  </IRQ>
[   21.634776][    C0]  <TASK>
[ 21.634778][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 21.634780][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 21.634785][ 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
[   21.634787][    C0] RSP: 0018:ffffffff8d407df8 EFLAGS: 00000242
[   21.634790][    C0] RAX: 000000000006b3ef RBX: 1ffffffff1a80fc3 RCX: ffffffff8c7905d9
[   21.634792][    C0] RDX: 0000000000000000 RSI: ffffffff8d28f4e4 RDI: ffffffff8ca53be0
[   21.634794][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c066fa
[   21.634796][    C0] R10: ffff8880360337d3 R11: ffffffff8d411288 R12: 0000000000000000
[   21.634797][    C0] R13: ffffffff8d41f240 R14: dffffc0000000000 R15: 0000000000014770
[ 21.634801][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 21.634806][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 21.634808][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 21.634811][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 21.634814][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 21.634818][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 21.634823][ C0] do_idle (kernel/sched/idle.c:325) 
[ 21.634827][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 21.634830][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 21.634833][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 21.634837][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 21.634842][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 21.634846][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   21.653629][    C0] RCU nest depth: 0, expected: 0
| [   21.653821][    C0] INFO: lockdep is turned off.
| [   21.654024][    C0] Preemption disabled at:
| [ 21.654026][ C0] schedule_preempt_disabled (kernel/sched/core.c:6933) 
[   21.654597][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.654599][    C0] Call Trace:
[   21.654600][    C0]  <IRQ>
[ 21.654602][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 21.654608][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 21.654615][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 21.654619][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 21.654622][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 21.654627][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.654632][ 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) 
[ 21.654638][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 21.654640][ 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) 
[ 21.654644][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 21.654649][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 21.654652][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 21.654658][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 21.654661][ 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) 
[ 21.654666][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 21.654669][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 21.654672][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 21.654677][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 21.654682][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 21.654686][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 21.654689][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 21.654692][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 21.654695][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 21.654698][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 21.654700][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 21.654703][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 21.654706][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 21.654713][ C0] __put_net (net/core/net_namespace.c:732) 
[ 21.654717][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 21.654721][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 21.654723][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 21.654728][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 21.654731][ C0] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.654734][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.654737][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 21.654743][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 21.654747][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 21.654753][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 21.654756][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 21.654759][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   21.654762][    C0]  </IRQ>
[   21.654763][    C0]  <TASK>
[ 21.654765][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 21.654767][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 21.654771][ 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
[   21.654774][    C0] RSP: 0018:ffffffff8d407df8 EFLAGS: 00000242
[   21.654777][    C0] RAX: 000000000006b3ef RBX: 1ffffffff1a80fc3 RCX: ffffffff8c7905d9
[   21.654779][    C0] RDX: 0000000000000000 RSI: ffffffff8d28f4e4 RDI: ffffffff8ca53be0
[   21.654781][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c066fa
[   21.654783][    C0] R10: ffff8880360337d3 R11: ffffffff8d411288 R12: 0000000000000000
[   21.654784][    C0] R13: ffffffff8d41f240 R14: dffffc0000000000 R15: 0000000000014770
[ 21.654788][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 21.654793][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 21.654796][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 21.654799][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 21.654802][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 21.654805][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 21.654811][ C0] do_idle (kernel/sched/idle.c:325) 
[ 21.654814][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 21.654817][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 21.654820][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 21.654824][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 21.654829][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 21.654833][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   27.568124][    C2] INFO: lockdep is turned off.
| [   27.568307][    C2] Preemption disabled at:
| [ 27.568309][ C2] fpu__clear_user_states (arch/x86/kernel/fpu/core.c:799 (discriminator 3)) 
| [   27.568686][    C2] Tainted: [W]=WARN
[   27.568687][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.568690][    C2] Call Trace:
[   27.568692][    C2]  <IRQ>
[ 27.568693][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 27.568701][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 27.568708][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 27.568712][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 27.568715][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 27.568719][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.568724][ 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) 
[ 27.568730][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 27.568733][ 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) 
[ 27.568736][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 27.568742][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 27.568745][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 27.568751][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 27.568755][ 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) 
[ 27.568760][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 27.568763][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 27.568767][ C2] ? __local_bh_enable_ip (kernel/softirq.c:407) 
[ 27.568772][ C2] ? handle_signal (arch/x86/kernel/signal.c:310) 
[ 27.568777][ C2] ? arch_do_signal_or_restart (arch/x86/kernel/signal.c:340) 
[ 27.568780][ C2] ? exit_to_user_mode_loop (kernel/entry/common.c:113) 
[ 27.568784][ C2] ? do_syscall_64 (./include/linux/entry-common.h:330 ./include/linux/entry-common.h:414 ./include/linux/entry-common.h:449 arch/x86/entry/syscall_64.c:100) 
[ 27.568788][ C2] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 27.568792][ C2] ? __pfx_migrate_enable (kernel/sched/core.c:2402) 
[ 27.568796][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 27.568800][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.568805][ C2] __put_net (net/core/net_namespace.c:732) 
[ 27.568808][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 27.568813][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 27.568815][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 27.568820][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 27.568823][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.568826][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 27.568834][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 27.568839][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 27.568843][ C2] ? fpu__clear_user_states (./include/linux/bottom_half.h:33 ./arch/x86/include/asm/fpu/api.h:77 arch/x86/kernel/fpu/core.c:814) 
[ 27.568846][ C2] do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[   27.568849][    C2]  </IRQ>
[   27.568850][    C2]  <TASK>
[ 27.568851][ C2] __local_bh_enable_ip (kernel/softirq.c:407) 
[ 27.568854][ C2] handle_signal (arch/x86/kernel/signal.c:310) 
[ 27.568859][ C2] arch_do_signal_or_restart (arch/x86/kernel/signal.c:340) 
[ 27.568862][ C2] ? __pfx_arch_do_signal_or_restart (arch/x86/kernel/signal.c:334) 
[ 27.568874][ C2] ? __x64_sys_rt_sigsuspend (kernel/signal.c:4858 kernel/signal.c:4848 kernel/signal.c:4848) 
[ 27.568878][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.568881][ C2] exit_to_user_mode_loop (kernel/entry/common.c:113) 
[ 27.568885][ C2] do_syscall_64 (./include/linux/entry-common.h:330 ./include/linux/entry-common.h:414 ./include/linux/entry-common.h:449 arch/x86/entry/syscall_64.c:100) 
[ 27.568888][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   27.568891][    C2] RIP: 0033:0x55c8be327270
[ 27.568899][ C2] Code: Unable to access opcode bytes at 0x55c8be327246.

Code starting with the faulting instruction
===========================================
[   27.568901][    C2] RSP: 002b:00007ffdab0c8338 EFLAGS: 00000246 ORIG_RAX: 0000000000000082
[   27.568904][    C2] RAX: 0000000000000000 RBX: 00007ffdab0c9068 RCX: 00007fad9608a06c
[   27.568906][    C2] RDX: 00007ffdab0c8340 RSI: 00007ffdab0c8470 RDI: 0000000000000011
[   27.568908][    C2] RBP: 00007ffdab0c9110 R08: 00007ffdab0c9110 R09: 0000000000000000
[   27.568910][    C2] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdab0c9090


Finger prints:
fpu__clear_user_states:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
schedule_preempt_disabled:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal