======================================
| [   14.530266][    C3] 1 lock held by swapper/3/0:
| [ 14.530452][ C3] #0: ffffffffa8d774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   14.530786][    C3]
| [   14.530786][    C3] stack backtrace:
[   14.531020][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.531022][    C3] Call Trace:
[   14.531024][    C3]  <IRQ>
[ 14.531026][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 14.531032][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 14.531037][ C3] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 14.531041][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 14.531046][ C3] ? save_trace (kernel/locking/lockdep.c:595) 
[ 14.531052][ C3] mark_lock (kernel/locking/lockdep.c:4756) 
[ 14.531055][ C3] mark_usage (kernel/locking/lockdep.c:4645) 
[ 14.531059][ C3] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 14.531062][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 14.531066][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 14.531069][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 14.531073][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 14.531077][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 14.531080][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 14.531084][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 14.531087][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 14.531090][ C3] simple_pin_fs (fs/libfs.c:1067) 
[ 14.531094][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 14.531098][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 14.531103][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 14.531107][ C3] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 14.531113][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.531116][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 14.531119][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 14.531122][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 14.531127][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.531131][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.531134][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.531137][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.531139][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.531143][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 14.531145][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.531148][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.531151][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 14.531159][ C3] __put_net (net/core/net_namespace.c:732) 
[ 14.531162][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 14.531166][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.531169][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.531172][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 14.531176][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 14.531179][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 14.531183][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 14.531186][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 14.531191][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 14.531195][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 14.531200][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 14.531203][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 14.531206][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   14.531209][    C3]  </IRQ>
[   14.531210][    C3]  <TASK>
[ 14.531212][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.531215][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.531219][ C3] Code: 92 b5 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 37 10 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	92                   	xchg   %eax,%edx
   1:	b5 00                	mov    $0x0,%ch
   3:	c3                   	ret
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 37 10 00 	verw   0x103783(%rip)        # 0x1037ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   14.531221][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000242
[   14.531225][    C3] RAX: 0000000000041d3b RBX: 1ffff9200002afc1 RCX: ffffffffa7d905d9
[   14.531227][    C3] RDX: 0000000000000000 RSI: ffffffffa888f4e4 RDI: ffffffffa8053be0
[   14.531229][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c366fa
[   14.531230][    C3] R10: ffff8880361b37d3 R11: ffffffffa8a11288 R12: 0000000000000000
[   14.531232][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 14.531236][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 14.531240][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.531243][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.531246][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.531249][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 14.531253][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 14.531257][ C3] do_idle (kernel/sched/idle.c:325) 
[ 14.531261][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.531264][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.531267][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 14.531271][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   14.547994][    C3] RCU nest depth: 0, expected: 0
| [   14.548172][    C3] INFO: lockdep is turned off.
| [   14.548350][    C3] Preemption disabled at:
| [ 14.548352][ C3] 0x0 
[   14.548675][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.548676][    C3] Call Trace:
[   14.548678][    C3]  <IRQ>
[ 14.548680][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 14.548685][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 14.548692][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 14.548697][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 14.548700][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 14.548703][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 14.548707][ C3] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 14.548713][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 14.548715][ C3] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 14.548719][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 14.548724][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 14.548727][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 14.548731][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 14.548735][ C3] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 14.548739][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.548742][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 14.548745][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 14.548749][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 14.548753][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.548756][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.548760][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.548762][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.548765][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.548768][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 14.548770][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.548772][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.548775][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 14.548782][ C3] __put_net (net/core/net_namespace.c:732) 
[ 14.548785][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 14.548789][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.548792][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.548795][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 14.548800][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 14.548803][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 14.548807][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 14.548810][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 14.548815][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 14.548819][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 14.548824][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 14.548827][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 14.548830][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   14.548833][    C3]  </IRQ>
[   14.548834][    C3]  <TASK>
[ 14.548836][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.548839][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.548842][ C3] Code: 92 b5 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 37 10 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	92                   	xchg   %eax,%edx
   1:	b5 00                	mov    $0x0,%ch
   3:	c3                   	ret
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 37 10 00 	verw   0x103783(%rip)        # 0x1037ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   14.548845][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000242
[   14.548848][    C3] RAX: 0000000000041d3b RBX: 1ffff9200002afc1 RCX: ffffffffa7d905d9
[   14.548850][    C3] RDX: 0000000000000000 RSI: ffffffffa888f4e4 RDI: ffffffffa8053be0
[   14.548851][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c366fa
[   14.548853][    C3] R10: ffff8880361b37d3 R11: ffffffffa8a11288 R12: 0000000000000000
[   14.548855][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 14.548858][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 14.548863][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.548866][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.548868][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.548871][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 14.548875][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 14.548879][ C3] do_idle (kernel/sched/idle.c:325) 
[ 14.548882][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.548885][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.548888][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 14.548892][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.171043][    C2] INFO: lockdep is turned off.
| [   16.171248][    C2] Preemption disabled at:
| [ 16.171250][ C2] 0x0 
| [   16.171632][    C2] Tainted: [W]=WARN
[   16.171634][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.171636][    C2] Call Trace:
[   16.171637][    C2]  <IRQ>
[ 16.171639][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.171647][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 16.171654][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.171658][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.171661][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.171665][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.171670][ C2] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 16.171677][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.171680][ C2] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 16.171683][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.171689][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.171692][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.171698][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.171701][ C2] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.171707][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.171710][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.171713][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.171718][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.171723][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.171727][ C2] ? zap_present_ptes.constprop.0 (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/mm.h:1364 mm/memory.c:1527 mm/memory.c:1586) 
[ 16.171732][ C2] ? zap_pte_range (mm/memory.c:1733) 
[ 16.171735][ C2] ? zap_p4d_range (mm/memory.c:1823 mm/memory.c:1852 mm/memory.c:1873) 
[ 16.171738][ C2] ? unmap_page_range (mm/memory.c:1894) 
[ 16.171741][ C2] ? unmap_vmas (./include/linux/hugetlb_inline.h:11 ./include/linux/hugetlb.h:261 mm/memory.c:1986) 
[ 16.171743][ C2] ? exit_mmap (./arch/x86/include/asm/jump_label.h:36 ./include/linux/mmap_lock.h:42 ./include/linux/mmap_lock.h:211 mm/mmap.c:1285) 
[ 16.171747][ C2] ? mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 16.171751][ C2] ? exit_mm (kernel/exit.c:596) 
[ 16.171755][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 16.171759][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.171764][ C2] __put_net (net/core/net_namespace.c:732) 
[ 16.171768][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.171772][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.171775][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.171779][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.171782][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.171786][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 16.171793][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.171797][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 16.171803][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.171806][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.171808][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.171813][    C2]  </IRQ>
[   16.171814][    C2]  <TASK>
[ 16.171815][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.171818][ C2] RIP: 0010:zap_present_ptes.constprop.0 (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/mm.h:1364 mm/memory.c:1527 mm/memory.c:1586) 
[ 16.171822][ C2] Code: 80 3c 02 00 0f 85 95 0c 00 00 48 8b 03 a8 40 0f 85 88 03 00 00 48 8b 04 24 be 04 00 00 00 4c 8d 68 30 4c 89 ef e8 c8 e7 12 00 <4c> 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 4c
All code
========
   0:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   4:	0f 85 95 0c 00 00    	jne    0xc9f
   a:	48 8b 03             	mov    (%rbx),%rax
   d:	a8 40                	test   $0x40,%al
   f:	0f 85 88 03 00 00    	jne    0x39d
  15:	48 8b 04 24          	mov    (%rsp),%rax
  19:	be 04 00 00 00       	mov    $0x4,%esi
  1e:	4c 8d 68 30          	lea    0x30(%rax),%r13
  22:	4c 89 ef             	mov    %r13,%rdi
  25:	e8 c8 e7 12 00       	call   0x12e7f2
  2a:*	4c 89 ea             	mov    %r13,%rdx		<-- trapping instruction
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 c1 ea 03          	shr    $0x3,%rdx
  3b:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
  3f:	4c                   	rex.WR

Code starting with the faulting instruction
===========================================
   0:	4c 89 ea             	mov    %r13,%rdx
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 c1 ea 03          	shr    $0x3,%rdx
  11:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
  15:	4c                   	rex.WR
[   16.171825][    C2] RSP: 0018:ffffc900009c7800 EFLAGS: 00000246
[   16.171828][    C2] RAX: 0000000000000001 RBX: ffffea0000c63e80 RCX: ffffffffa5be9a28
[   16.171831][    C2] RDX: fffff9400018c7d7 RSI: 0000000000000004 RDI: ffffea0000c63eb0
[   16.171832][    C2] RBP: ffffc900009c7d60 R08: 0000000000000000 R09: fffff9400018c7d6
[   16.171834][    C2] R10: ffffea0000c63eb3 R11: dffffc0000000000 R12: 00007f63d0b8a000
[   16.171836][    C2] R13: ffffea0000c63eb0 R14: ffffc900009c7d80 R15: ffff888009cacac0
[ 16.171839][ C2] ? zap_present_ptes.constprop.0 (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/mm.h:1364 mm/memory.c:1527 mm/memory.c:1586) 
[ 16.171847][ C2] zap_pte_range (mm/memory.c:1733) 
[ 16.171854][ C2] ? __mod_node_page_state (mm/vmstat.c:406) 
[ 16.171858][ C2] ? __pfx_zap_pte_range (mm/memory.c:1701) 
[ 16.171864][ C2] ? mas_next_node (lib/maple_tree.c:800 lib/maple_tree.c:833 lib/maple_tree.c:4599) 
[ 16.171869][ C2] zap_p4d_range (mm/memory.c:1823 mm/memory.c:1852 mm/memory.c:1873) 
[ 16.171875][ C2] unmap_page_range (mm/memory.c:1894) 
[ 16.171880][ C2] unmap_vmas (./include/linux/hugetlb_inline.h:11 ./include/linux/hugetlb.h:261 mm/memory.c:1986) 
[ 16.171884][ C2] ? __pfx_unmap_vmas (mm/memory.c:1969) 
[ 16.171888][ C2] ? __pfx_free_ldt_pgtables (arch/x86/kernel/ldt.c:394) 
[ 16.171892][ C2] ? mtree_range_walk (lib/maple_tree.c:800 lib/maple_tree.c:2787) 
[ 16.171896][ C2] ? mas_next_slot (lib/maple_tree.c:800 lib/maple_tree.c:4712) 
[ 16.171903][ C2] exit_mmap (./arch/x86/include/asm/jump_label.h:36 ./include/linux/mmap_lock.h:42 ./include/linux/mmap_lock.h:211 mm/mmap.c:1285) 
[ 16.171907][ C2] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 16.171911][ C2] ? __pfx_exit_mmap (mm/mmap.c:1259) 
[ 16.171915][ C2] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:727 kernel/locking/mutex.c:746) 
[ 16.171919][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 16.171922][ C2] ? __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) 
[ 16.171930][ C2] mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 16.171934][ C2] exit_mm (kernel/exit.c:596) 
[ 16.171937][ C2] do_exit (kernel/exit.c:950) 
[ 16.171942][ C2] do_group_exit (kernel/exit.c:1089) 
[ 16.171946][ C2] __x64_sys_exit_group (kernel/exit.c:1117) 
[ 16.171949][ C2] x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 16.171954][ C2] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 16.171958][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.171961][    C2] RIP: 0033:0x7f63d0a8aabd
[ 16.171963][ C2] Code: Unable to access opcode bytes at 0x7f63d0a8aa93.

Code starting with the faulting instruction
===========================================
[   16.171964][    C2] RSP: 002b:00007ffc2a3ad6b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   16.171967][    C2] RAX: ffffffffffffffda RBX: 00007f63d0b679c0 RCX: 00007f63d0a8aabd
[   16.171969][    C2] RDX: 00000000000000e7 RSI: ffffffffffffff80 RDI: 0000000000000000
[   16.171971][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000030
[   16.171973][    C2] R10: 00007ffc2a3ad540 R11: 0000000000000246 R12: 00007f63d0b679c0


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