======================================
| [   19.442794][    C2] 1 lock held by swapper/2/0:
| [ 19.443105][ C2] #0: ffffffffb0f774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   19.443665][    C2]
| [   19.443665][    C2] stack backtrace:
[   19.444088][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.444092][    C2] Call Trace:
[   19.444095][    C2]  <IRQ>
[ 19.444100][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 19.444112][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 19.444123][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 19.444132][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 19.444141][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 19.444151][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 19.444158][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 19.444163][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 19.444169][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.444177][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 19.444182][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 19.444192][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.444198][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 19.444202][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 19.444210][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 19.444218][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 19.444223][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 19.444228][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 19.444236][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 19.444246][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 19.444251][ 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) 
[ 19.444260][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.444266][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 19.444272][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 19.444278][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 19.444286][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 19.444293][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 19.444298][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 19.444303][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 19.444307][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 19.444313][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 19.444318][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 19.444322][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 19.444329][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 19.444342][ C2] __put_net (net/core/net_namespace.c:732) 
[ 19.444348][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 19.444354][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.444359][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.444365][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.444373][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 19.444379][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.444384][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.444388][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.444397][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 19.444406][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 19.444415][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 19.444421][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 19.444426][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   19.444432][    C2]  </IRQ>
[   19.444434][    C2]  <TASK>
[ 19.444438][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 19.444442][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 19.444449][ C2] Code: a2 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 47 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:	a2 b5 00 c3 cc cc cc 	movabs %al,0xfccccccccc300b5
   7:	cc 0f 
   9:	1f                   	(bad)
   a:	00 90 90 90 90 90    	add    %dl,-0x6f6f6f70(%rax)
  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 47 10 00 	verw   0x104783(%rip)        # 0x1047ab
  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
[   19.444454][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   19.444460][    C2] RAX: 0000000000045793 RBX: 1ffff92000028fc1 RCX: ffffffffaff8f5d9
[   19.444464][    C2] RDX: 0000000000000000 RSI: ffffffffb0a8f4e4 RDI: ffffffffb0253be0
[   19.444467][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   19.444471][    C2] R10: ffff8880361337d3 R11: ffffffffb0c11288 R12: 0000000000000000
[   19.444474][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 19.444482][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 19.444492][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 19.444496][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 19.444501][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 19.444507][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 19.444514][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 19.444522][ C2] do_idle (kernel/sched/idle.c:325) 
[ 19.444529][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 19.444533][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 19.444539][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 19.444548][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   19.468747][    C2] RCU nest depth: 0, expected: 0
| [   19.468946][    C2] INFO: lockdep is turned off.
| [   19.469132][    C2] Preemption disabled at:
| [ 19.469134][ C2] 0x0 
[   19.469479][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.469482][    C2] Call Trace:
[   19.469484][    C2]  <IRQ>
[ 19.469488][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 19.469500][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 19.469509][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 19.469515][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 19.469518][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 19.469524][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.469530][ 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) 
[ 19.469537][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 19.469539][ 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) 
[ 19.469543][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 19.469550][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 19.469553][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 19.469561][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 19.469566][ 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) 
[ 19.469575][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.469580][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 19.469585][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 19.469593][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 19.469600][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 19.469605][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 19.469609][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 19.469611][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 19.469614][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 19.469619][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 19.469621][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 19.469624][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 19.469628][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 19.469637][ C2] __put_net (net/core/net_namespace.c:732) 
[ 19.469642][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 19.469646][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.469649][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.469652][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.469659][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 19.469663][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.469668][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.469672][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.469677][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 19.469682][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 19.469687][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 19.469690][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 19.469693][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   19.469697][    C2]  </IRQ>
[   19.469698][    C2]  <TASK>
[ 19.469699][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 19.469702][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 19.469708][ C2] Code: a2 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 47 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:	a2 b5 00 c3 cc cc cc 	movabs %al,0xfccccccccc300b5
   7:	cc 0f 
   9:	1f                   	(bad)
   a:	00 90 90 90 90 90    	add    %dl,-0x6f6f6f70(%rax)
  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 47 10 00 	verw   0x104783(%rip)        # 0x1047ab
  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
[   19.469711][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   19.469715][    C2] RAX: 0000000000045793 RBX: 1ffff92000028fc1 RCX: ffffffffaff8f5d9
[   19.469717][    C2] RDX: 0000000000000000 RSI: ffffffffb0a8f4e4 RDI: ffffffffb0253be0
[   19.469719][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   19.469720][    C2] R10: ffff8880361337d3 R11: ffffffffb0c11288 R12: 0000000000000000
[   19.469722][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 19.469726][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 19.469731][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 19.469733][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 19.469736][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 19.469739][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 19.469743][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 19.469747][ C2] do_idle (kernel/sched/idle.c:325) 
[ 19.469750][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 19.469754][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 19.469756][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 19.469761][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   21.712441][    C2] INFO: lockdep is turned off.
| [   21.712636][    C2] Preemption disabled at:
| [ 21.712638][ C2] 0x0 
| [   21.713066][    C2] Tainted: [W]=WARN
[   21.713067][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.713070][    C2] Call Trace:
[   21.713072][    C2]  <IRQ>
[ 21.713075][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 21.713086][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 21.713096][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 21.713101][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 21.713104][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 21.713110][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.713116][ 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) 
[ 21.713123][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 21.713126][ 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) 
[ 21.713130][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 21.713136][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 21.713140][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 21.713147][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 21.713151][ 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) 
[ 21.713158][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 21.713162][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 21.713166][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 21.713172][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 21.713178][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 21.713184][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 21.713187][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 21.713190][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 21.713193][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 21.713197][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 21.713200][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 21.713202][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 21.713207][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 21.713214][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 21.713220][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.713224][ C2] __put_net (net/core/net_namespace.c:732) 
[ 21.713229][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 21.713233][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 21.713235][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 21.713240][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 21.713243][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 21.713251][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 21.713257][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 21.713263][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 21.713268][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 21.713271][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 21.713274][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   21.713278][    C2]  </IRQ>
[   21.713280][    C2]  <TASK>
[ 21.713281][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 21.713284][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 21.713289][ C2] Code: a2 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 47 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:	a2 b5 00 c3 cc cc cc 	movabs %al,0xfccccccccc300b5
   7:	cc 0f 
   9:	1f                   	(bad)
   a:	00 90 90 90 90 90    	add    %dl,-0x6f6f6f70(%rax)
  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 47 10 00 	verw   0x104783(%rip)        # 0x1047ab
  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
[   21.713291][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   21.713297][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffffaff8f5d9
[   21.713299][    C2] RDX: ffffed1006c266fb RSI: ffffffffb0253b60 RDI: ffffffffad78d18f
[   21.713301][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c266fa
[   21.713303][    C2] R10: ffff8880361337d3 R11: ffffffffb3890298 R12: 0000000000000000
[   21.713305][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 21.713309][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 21.713312][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 21.713316][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 21.713319][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 21.713322][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 21.713325][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 21.713329][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 21.713333][ C2] do_idle (kernel/sched/idle.c:325) 
[ 21.713336][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 21.713339][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 21.713342][ 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