======================================
| [   14.556858][    C3] 1 lock held by swapper/3/0:
| [ 14.557036][ C3] #0: ffffffff8bf74480 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2562) 
| [   14.557354][    C3]
| [   14.557354][    C3] stack backtrace:
[   14.557581][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.557583][    C3] Call Trace:
[   14.557585][    C3]  <IRQ>
[ 14.557587][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 14.557593][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 14.557598][ C3] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 14.557602][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 14.557608][ C3] ? save_trace (kernel/locking/lockdep.c:594) 
[ 14.557612][ C3] mark_lock (kernel/locking/lockdep.c:4754) 
[ 14.557616][ C3] mark_usage (kernel/locking/lockdep.c:4643) 
[ 14.557620][ C3] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 14.557625][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 14.557629][ C3] ? simple_pin_fs (fs/libfs.c:1066) 
[ 14.557633][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 14.557638][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 14.557641][ C3] ? simple_pin_fs (fs/libfs.c:1066) 
[ 14.557646][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 14.557649][ C3] ? simple_pin_fs (fs/libfs.c:1066) 
[ 14.557652][ C3] simple_pin_fs (fs/libfs.c:1066) 
[ 14.557656][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 14.557659][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 14.557663][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 14.557666][ 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:2333) 
[ 14.557672][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 14.557675][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 14.557678][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 14.557680][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 14.557685][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.557688][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 14.557692][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 14.557694][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.557696][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.557700][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 14.557702][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.557705][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.557710][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 14.557716][ C3] __put_net (net/core/net_namespace.c:732) 
[ 14.557719][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 14.557723][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 14.557725][ C3] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 14.557730][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 14.557734][ C3] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 14.557738][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 14.557741][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 14.557746][ C3] rcu_core (kernel/rcu/tree.c:2826) 
[ 14.557749][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 14.557753][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 14.557756][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 14.557758][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   14.557761][    C3]  </IRQ>
[   14.557762][    C3]  <TASK>
[ 14.557764][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.557766][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 14.557770][ C3] Code: b0 b8 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 a3 d0 13 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	b0 b8                	mov    $0xb8,%al
   2:	00 c3                	add    %al,%bl
   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 a3 d0 13 00 	verw   0x13d0a3(%rip)        # 0x13d0cb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   14.557773][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000242
[   14.557777][    C3] RAX: 000000000004289b RBX: 1ffff9200002afc1 RCX: ffffffff8af55a19
[   14.557779][    C3] RDX: 0000000000000000 RSI: ffffffff8ba85f31 RDI: ffffffff8b250ce0
[   14.557781][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c3667a
[   14.557783][    C3] R10: ffff8880361b33d3 R11: 0000000000000000 R12: 0000000000000000
[   14.557784][    C3] R13: ffff888001bb4640 R14: dffffc0000000000 R15: 0000000000000000
[ 14.557788][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 14.557794][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 14.557796][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.557798][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.557802][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 14.557806][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 14.557811][ C3] do_idle (kernel/sched/idle.c:325) 
[ 14.557815][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.557818][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.557822][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 14.557827][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   14.572472][    C3] RCU nest depth: 0, expected: 0
| [   14.572637][    C3] INFO: lockdep is turned off.
| [   14.572801][    C3] Preemption disabled at:
| [ 14.572803][ C3] 0x0 
[   14.573102][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.573104][    C3] Call Trace:
[   14.573106][    C3]  <IRQ>
[ 14.573107][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 14.573114][ C3] __might_resched (kernel/sched/core.c:8819) 
[ 14.573120][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 14.573124][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 14.573126][ C3] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 14.573130][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 14.573136][ 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) 
[ 14.573140][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 14.573143][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 14.573146][ 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) 
[ 14.573150][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 14.573153][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 14.573158][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 14.573161][ 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:2333) 
[ 14.573165][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 14.573168][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 14.573171][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 14.573174][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 14.573177][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.573180][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 14.573183][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 14.573185][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.573187][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.573192][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 14.573194][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.573197][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.573201][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 14.573207][ C3] __put_net (net/core/net_namespace.c:732) 
[ 14.573210][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 14.573214][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 14.573217][ C3] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 14.573222][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 14.573225][ C3] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 14.573230][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 14.573233][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 14.573238][ C3] rcu_core (kernel/rcu/tree.c:2826) 
[ 14.573242][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 14.573246][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 14.573249][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 14.573251][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   14.573255][    C3]  </IRQ>
[   14.573256][    C3]  <TASK>
[ 14.573257][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.573260][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 14.573263][ C3] Code: b0 b8 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 a3 d0 13 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	b0 b8                	mov    $0xb8,%al
   2:	00 c3                	add    %al,%bl
   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 a3 d0 13 00 	verw   0x13d0a3(%rip)        # 0x13d0cb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   14.573266][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000242
[   14.573269][    C3] RAX: 000000000004289b RBX: 1ffff9200002afc1 RCX: ffffffff8af55a19
[   14.573271][    C3] RDX: 0000000000000000 RSI: ffffffff8ba85f31 RDI: ffffffff8b250ce0
[   14.573272][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c3667a
[   14.573274][    C3] R10: ffff8880361b33d3 R11: 0000000000000000 R12: 0000000000000000
[   14.573276][    C3] R13: ffff888001bb4640 R14: dffffc0000000000 R15: 0000000000000000
[ 14.573280][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 14.573285][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 14.573287][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.573289][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.573293][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 14.573297][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 14.573303][ C3] do_idle (kernel/sched/idle.c:325) 
[ 14.573306][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.573310][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.573313][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 14.573318][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.133397][    C3] INFO: lockdep is turned off.
| [   16.133583][    C3] Preemption disabled at:
| [ 16.133585][ C3] down_write (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:4456 kernel/locking/rwsem.c:267 kernel/locking/rwsem.c:1303 kernel/locking/rwsem.c:1313 kernel/locking/rwsem.c:1578) 
| [   16.133967][    C3] Tainted: [W]=WARN
[   16.133968][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.133970][    C3] Call Trace:
[   16.133972][    C3]  <IRQ>
[ 16.133974][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.133980][ C3] __might_resched (kernel/sched/core.c:8819) 
[ 16.133986][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.133989][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.133992][ C3] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 16.133996][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.134002][ C3] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 16.134007][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 16.134009][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.134014][ C3] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 16.134019][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.134021][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 16.134026][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 16.134029][ 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:2333) 
[ 16.134035][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.134039][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 16.134042][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.134045][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 16.134051][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.134055][ C3] ? rwsem_spin_on_owner (./include/linux/instrumented.h:68 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/rwsem.c:282 kernel/locking/rwsem.c:765) 
[ 16.134059][ C3] ? rwsem_optimistic_spin (kernel/locking/rwsem.c:837) 
[ 16.134061][ C3] ? rwsem_down_write_slowpath (kernel/locking/rwsem.c:1113 (discriminator 1)) 
[ 16.134064][ C3] ? down_write (./include/linux/err.h:70 kernel/locking/rwsem.c:1304 kernel/locking/rwsem.c:1313 kernel/locking/rwsem.c:1578) 
[ 16.134066][ C3] ? unlink_anon_vmas (mm/rmap.c:409) 
[ 16.134070][ C3] ? free_pgtables (mm/memory.c:392) 
[ 16.134074][ C3] ? exit_mmap (mm/mmap.c:1297) 
[ 16.134077][ C3] ? mmput (kernel/fork.c:1446 kernel/fork.c:1381 kernel/fork.c:1401) 
[ 16.134082][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 16.134086][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.134091][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.134094][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 16.134098][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.134101][ C3] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.134106][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 16.134110][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.134114][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 16.134119][ C3] rcu_core (kernel/rcu/tree.c:2826) 
[ 16.134122][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.134127][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.134130][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.134132][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   16.134136][    C3]  </IRQ>
[   16.134137][    C3]  <TASK>
[ 16.134138][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.134141][ C3] RIP: 0010:rwsem_spin_on_owner (./include/linux/instrumented.h:68 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/rwsem.c:282 kernel/locking/rwsem.c:765) 
[ 16.134145][ C3] Code: 48 8d 7b 14 48 89 f8 48 c1 e8 03 42 0f b6 0c 38 48 89 f8 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 3f 01 00 00 8b 43 14 f3 90 <be> 08 00 00 00 4c 89 e7 e8 c9 8d 73 00 4c 89 e0 48 c1 e8 03 42 80
All code
========
   0:	48 8d 7b 14          	lea    0x14(%rbx),%rdi
   4:	48 89 f8             	mov    %rdi,%rax
   7:	48 c1 e8 03          	shr    $0x3,%rax
   b:	42 0f b6 0c 38       	movzbl (%rax,%r15,1),%ecx
  10:	48 89 f8             	mov    %rdi,%rax
  13:	83 e0 07             	and    $0x7,%eax
  16:	83 c0 03             	add    $0x3,%eax
  19:	38 c8                	cmp    %cl,%al
  1b:	7c 08                	jl     0x25
  1d:	84 c9                	test   %cl,%cl
  1f:	0f 85 3f 01 00 00    	jne    0x164
  25:	8b 43 14             	mov    0x14(%rbx),%eax
  28:	f3 90                	pause
  2a:*	be 08 00 00 00       	mov    $0x8,%esi		<-- trapping instruction
  2f:	4c 89 e7             	mov    %r12,%rdi
  32:	e8 c9 8d 73 00       	call   0x738e00
  37:	4c 89 e0             	mov    %r12,%rax
  3a:	48 c1 e8 03          	shr    $0x3,%rax
  3e:	42                   	rex.X
  3f:	80                   	.byte 0x80

Code starting with the faulting instruction
===========================================
   0:	be 08 00 00 00       	mov    $0x8,%esi
   5:	4c 89 e7             	mov    %r12,%rdi
   8:	e8 c9 8d 73 00       	call   0x738dd6
   d:	4c 89 e0             	mov    %r12,%rax
  10:	48 c1 e8 03          	shr    $0x3,%rax
  14:	42                   	rex.X
  15:	80                   	.byte 0x80
[   16.134148][    C3] RSP: 0018:ffffc90000a17828 EFLAGS: 00000246
[   16.134151][    C3] RAX: 0000000000000000 RBX: ffff888008fc2340 RCX: 0000000000000000
[   16.134153][    C3] RDX: ffffed1001776f4c RSI: 0000000000000000 RDI: ffff888008fc2354
[   16.134155][    C3] RBP: ffff88800bbb7a50 R08: 0000000000000000 R09: ffffed1001776f4b
[   16.134157][    C3] R10: ffff88800bbb7a5f R11: ffffc90000a17748 R12: ffff88800bbb7a58
[   16.134159][    C3] R13: ffffed1000a72008 R14: ffff888008fc2340 R15: dffffc0000000000
[ 16.134164][ C3] ? rwsem_spin_on_owner (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/rwsem.c:282 kernel/locking/rwsem.c:765) 
[ 16.134169][ C3] rwsem_optimistic_spin (kernel/locking/rwsem.c:837) 
[ 16.134172][ C3] ? __pfx_rwsem_optimistic_spin (kernel/locking/rwsem.c:818) 
[ 16.134175][ C3] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 16.134179][ C3] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 16.134181][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 16.134184][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.134189][ C3] rwsem_down_write_slowpath (kernel/locking/rwsem.c:1113 (discriminator 1)) 
[ 16.134192][ C3] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) 
[ 16.134198][ C3] ? __pfx_rwsem_down_write_slowpath (kernel/locking/rwsem.c:1106) 
[ 16.134202][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.134206][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.134210][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 16.134214][ C3] ? unlink_anon_vmas (mm/rmap.c:409) 
[ 16.134218][ C3] down_write (./include/linux/err.h:70 kernel/locking/rwsem.c:1304 kernel/locking/rwsem.c:1313 kernel/locking/rwsem.c:1578) 
[ 16.134220][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.134223][ C3] ? __pfx___vma_enter_locked (mm/memory.c:6459) 
[ 16.134227][ C3] unlink_anon_vmas (mm/rmap.c:409) 
[ 16.134230][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.134235][ C3] free_pgtables (mm/memory.c:392) 
[ 16.134240][ C3] ? __pfx_free_pgtables (mm/memory.c:349) 
[ 16.134243][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 16.134246][ C3] ? exit_mmap (./include/linux/seqlock.h:431 ./include/linux/mmap_lock.h:82 ./include/linux/mmap_lock.h:129 mm/mmap.c:1292) 
[ 16.134250][ C3] ? down_write (./arch/x86/include/asm/preempt.h:104 kernel/locking/rwsem.c:1307 kernel/locking/rwsem.c:1313 kernel/locking/rwsem.c:1578) 
[ 16.134252][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.134255][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.134258][ C3] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 16.134262][ C3] exit_mmap (mm/mmap.c:1297) 
[ 16.134266][ C3] ? __pfx_exit_mmap (mm/mmap.c:1259) 
[ 16.134268][ C3] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:727 kernel/locking/mutex.c:746) 
[ 16.134272][ C3] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 16.134276][ C3] ? __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) 
[ 16.134286][ C3] mmput (kernel/fork.c:1446 kernel/fork.c:1381 kernel/fork.c:1401) 
[ 16.134290][ C3] exit_mm (kernel/exit.c:590) 
[ 16.134294][ C3] do_exit (kernel/exit.c:943) 
[ 16.134298][ C3] do_group_exit (kernel/exit.c:1083) 
[ 16.134301][ C3] __x64_sys_exit_group (kernel/exit.c:1111) 
[ 16.134304][ C3] x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 16.134309][ C3] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 16.134313][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.134315][    C3] RIP: 0033:0x7f2bf69fbabd
[ 16.134318][ C3] Code: Unable to access opcode bytes at 0x7f2bf69fba93.

Code starting with the faulting instruction
===========================================
[   16.134320][    C3] RSP: 002b:00007fff39efb218 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   16.134323][    C3] RAX: ffffffffffffffda RBX: 00007f2bf6ad89c0 RCX: 00007f2bf69fbabd
[   16.134325][    C3] RDX: 00000000000000e7 RSI: ffffffffffffff80 RDI: 0000000000000000
[   16.134326][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000030
[   16.134328][    C3] R10: 00007fff39efb0a0 R11: 0000000000000246 R12: 00007f2bf6ad89c0


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
down_write:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal