======================================
| [   14.958187][    C2] 1 lock held by swapper/2/0:
| [ 14.958390][ C2] #0: ffffffffaad774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   14.958738][    C2]
| [   14.958738][    C2] stack backtrace:
[   14.958989][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.958991][    C2] Call Trace:
[   14.958993][    C2]  <IRQ>
[ 14.958995][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 14.959001][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 14.959006][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 14.959010][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 14.959015][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 14.959020][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 14.959024][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 14.959027][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 14.959030][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 14.959034][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 14.959037][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 14.959042][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 14.959046][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 14.959048][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 14.959053][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 14.959056][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 14.959059][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 14.959063][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 14.959066][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 14.959072][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 14.959076][ 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) 
[ 14.959082][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.959084][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 14.959088][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 14.959091][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 14.959096][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.959100][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.959103][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.959106][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.959108][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.959112][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 14.959114][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.959116][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.959120][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 14.959127][ C2] __put_net (net/core/net_namespace.c:732) 
[ 14.959131][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 14.959135][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.959138][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.959141][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 14.959145][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 14.959149][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 14.959152][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 14.959155][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 14.959160][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 14.959164][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 14.959169][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 14.959172][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 14.959175][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   14.959179][    C2]  </IRQ>
[   14.959180][    C2]  <TASK>
[ 14.959181][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.959184][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.959188][ 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
[   14.959191][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   14.959194][    C2] RAX: 000000000004067d RBX: 1ffff92000028fc1 RCX: ffffffffa9d905d9
[   14.959196][    C2] RDX: 0000000000000000 RSI: ffffffffaa88f4e4 RDI: ffffffffaa053be0
[   14.959198][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   14.959199][    C2] R10: ffff8880361337d3 R11: ffffffffaaa11288 R12: 0000000000000000
[   14.959201][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 14.959205][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 14.959210][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.959212][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.959215][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.959218][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 14.959222][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 14.959226][ C2] do_idle (kernel/sched/idle.c:325) 
[ 14.959230][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.959233][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.959235][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 14.959240][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   14.975890][    C2] RCU nest depth: 0, expected: 0
| [   14.976094][    C2] INFO: lockdep is turned off.
| [   14.976304][    C2] Preemption disabled at:
| [ 14.976306][ C2] 0x0 
[   14.976769][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.976771][    C2] Call Trace:
[   14.976772][    C2]  <IRQ>
[ 14.976774][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 14.976781][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 14.976788][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 14.976792][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 14.976795][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 14.976799][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 14.976803][ 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) 
[ 14.976809][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 14.976812][ 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) 
[ 14.976815][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 14.976820][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 14.976823][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 14.976828][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 14.976831][ 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) 
[ 14.976836][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.976839][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 14.976842][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 14.976846][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 14.976850][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.976854][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.976857][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.976860][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.976862][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.976866][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 14.976868][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.976870][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.976874][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 14.976880][ C2] __put_net (net/core/net_namespace.c:732) 
[ 14.976884][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 14.976888][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.976890][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.976894][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 14.976899][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 14.976902][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 14.976906][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 14.976909][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 14.976914][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 14.976918][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 14.976924][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 14.976927][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 14.976929][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   14.976933][    C2]  </IRQ>
[   14.976934][    C2]  <TASK>
[ 14.976936][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.976938][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.976942][ 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
[   14.976944][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   14.976947][    C2] RAX: 000000000004067d RBX: 1ffff92000028fc1 RCX: ffffffffa9d905d9
[   14.976949][    C2] RDX: 0000000000000000 RSI: ffffffffaa88f4e4 RDI: ffffffffaa053be0
[   14.976951][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   14.976953][    C2] R10: ffff8880361337d3 R11: ffffffffaaa11288 R12: 0000000000000000
[   14.976954][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 14.976958][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 14.976963][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.976965][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.976968][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.976971][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 14.976975][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 14.976979][ C2] do_idle (kernel/sched/idle.c:325) 
[ 14.976982][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.976985][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.976988][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 14.976992][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.582862][    C0] INFO: lockdep is turned off.
| [   16.583072][    C0] Preemption disabled at:
| [ 16.583074][ C0] handle_softirqs (kernel/softirq.c:553) 
| [   16.583526][    C0] Tainted: [W]=WARN
[   16.583527][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.583529][    C0] Call Trace:
[   16.583531][    C0]  <IRQ>
[ 16.583533][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.583540][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 16.583546][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.583551][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.583554][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.583558][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.583563][ 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) 
[ 16.583569][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.583572][ 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) 
[ 16.583575][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.583581][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.583584][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.583589][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.583593][ 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) 
[ 16.583599][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.583602][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.583605][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.583608][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.583613][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.583617][ C0] ? stack_access_ok (arch/x86/kernel/unwind_orc.c:389) 
[ 16.583621][ C0] ? unwind_next_frame (arch/x86/kernel/unwind_orc.c:403 arch/x86/kernel/unwind_orc.c:585) 
[ 16.583623][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 16.583628][ C0] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 16.583631][ C0] ? set_track_prepare (mm/slub.c:936) 
[ 16.583636][ C0] ? __alloc_object (mm/kmemleak.c:697) 
[ 16.583639][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 16.583642][ C0] ? __kmalloc_cache_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4353) 
[ 16.583647][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 16.583651][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.583656][ C0] __put_net (net/core/net_namespace.c:732) 
[ 16.583659][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.583663][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.583666][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.583670][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.583674][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.583677][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 16.583684][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.583689][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 16.583694][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.583697][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.583699][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.583703][    C0]  </IRQ>
[   16.583704][    C0]  <TASK>
[ 16.583706][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.583708][ C0] RIP: 0010:stack_access_ok (arch/x86/kernel/unwind_orc.c:389) 
[ 16.583712][ C0] Code: 15 57 90 00 e9 bc fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 41 57 <41> 56 41 55 4c 8d 6f 08 41 54 49 89 d4 4c 89 ea 55 48 c1 ea 03 48
All code
========
   0:	15 57 90 00 e9       	adc    $0xe9009057,%eax
   5:	bc fe ff ff 90       	mov    $0x90fffffe,%esp
   a:	90                   	nop
   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:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  1e:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  25:	fc ff df 
  28:	41 57                	push   %r15
  2a:*	41 56                	push   %r14		<-- trapping instruction
  2c:	41 55                	push   %r13
  2e:	4c 8d 6f 08          	lea    0x8(%rdi),%r13
  32:	41 54                	push   %r12
  34:	49 89 d4             	mov    %rdx,%r12
  37:	4c 89 ea             	mov    %r13,%rdx
  3a:	55                   	push   %rbp
  3b:	48 c1 ea 03          	shr    $0x3,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	41 56                	push   %r14
   2:	41 55                	push   %r13
   4:	4c 8d 6f 08          	lea    0x8(%rdi),%r13
   8:	41 54                	push   %r12
   a:	49 89 d4             	mov    %rdx,%r12
   d:	4c 89 ea             	mov    %r13,%rdx
  10:	55                   	push   %rbp
  11:	48 c1 ea 03          	shr    $0x3,%rdx
  15:	48                   	rex.W
[   16.583715][    C0] RSP: 0018:ffffc900007e78b0 EFLAGS: 00000246
[   16.583718][    C0] RAX: dffffc0000000000 RBX: 1ffff920000fcf21 RCX: 0000000000000001
[   16.583721][    C0] RDX: 0000000000000008 RSI: ffffc900007e7f20 RDI: ffffc900007e79c0
[   16.583723][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffc900007e7a01
[   16.583724][    C0] R10: ffffffffa7412687 R11: ffffc900007e7a00 R12: ffffc900007e7a18
[   16.583726][    C0] R13: ffffc900007e79c0 R14: ffffffffabbb22bc R15: ffffc900007e7f20
[ 16.583729][ C0] ? unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 16.583735][ C0] unwind_next_frame (arch/x86/kernel/unwind_orc.c:403 arch/x86/kernel/unwind_orc.c:585) 
[ 16.583738][ C0] ? __x64_sys_exit_group (kernel/exit.c:1117) 
[ 16.583743][ C0] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 16.583746][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 16.583750][ C0] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 16.583754][ C0] ? __x64_sys_exit_group (kernel/exit.c:1117) 
[ 16.583757][ C0] ? kernel_text_address (kernel/extable.c:99) 
[ 16.583761][ C0] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 16.583764][ C0] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 16.583770][ C0] ? __x64_sys_exit_group (kernel/exit.c:1117) 
[ 16.583774][ C0] stack_trace_save (kernel/stacktrace.c:123) 
[ 16.583777][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 16.583781][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 16.583784][ C0] set_track_prepare (mm/slub.c:936) 
[ 16.583787][ C0] ? __kmalloc_cache_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4353) 
[ 16.583790][ C0] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.583793][ C0] ? exit_mmap (mm/mmap.c:1311) 
[ 16.583798][ C0] ? mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 16.583800][ C0] ? exit_mm (kernel/exit.c:596) 
[ 16.583803][ C0] ? do_exit (kernel/exit.c:950) 
[ 16.583806][ C0] ? do_group_exit (kernel/exit.c:1089) 
[ 16.583809][ C0] ? __x64_sys_exit_group (kernel/exit.c:1117) 
[ 16.583814][ C0] __alloc_object (mm/kmemleak.c:697) 
[ 16.583818][ C0] __create_object (mm/kmemleak.c:770) 
[ 16.583822][ C0] __kmalloc_cache_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4353) 
[ 16.583827][ C0] kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 16.583830][ C0] ? exit_mmap (mm/mmap.c:1311) 
[ 16.583835][ C0] exit_mmap (mm/mmap.c:1311) 
[ 16.583839][ C0] ? __pfx_exit_mmap (mm/mmap.c:1259) 
[ 16.583843][ C0] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:727 kernel/locking/mutex.c:746) 
[ 16.583847][ C0] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 16.583850][ C0] ? __mutex_unlock_slowpath (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4329 ./include/linux/atomic/atomic-long.h:1506 ./include/linux/atomic/atomic-instrumented.h:4481 kernel/locking/mutex.c:924) 
[ 16.583858][ C0] mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 16.583862][ C0] exit_mm (kernel/exit.c:596) 
[ 16.583866][ C0] do_exit (kernel/exit.c:950) 
[ 16.583870][ C0] do_group_exit (kernel/exit.c:1089) 
[ 16.583874][ C0] __x64_sys_exit_group (kernel/exit.c:1117) 
[ 16.583878][ C0] x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 16.583883][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 16.583887][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.583889][    C0] RIP: 0033:0x7fdf228a8abd
[ 16.583892][ C0] Code: Unable to access opcode bytes at 0x7fdf228a8a93.

Code starting with the faulting instruction
===========================================
[   16.583894][    C0] RSP: 002b:00007ffcbb8bc128 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   16.583896][    C0] RAX: ffffffffffffffda RBX: 00007fdf229859c0 RCX: 00007fdf228a8abd
[   16.583898][    C0] RDX: 00000000000000e7 RSI: ffffffffffffff80 RDI: 0000000000000000
[   16.583900][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000030
[   16.583901][    C0] R10: 00007ffcbb8bbfb0 R11: 0000000000000246 R12: 00007fdf229859c0


Finger prints:
handle_softirqs:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal
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