======================================
| [ 13.044924][ C0] #2: ffff88800a860220 (&mm->mmap_lock/1){+.+.}-{4:4}, at: dup_mmap (./include/linux/seqlock.h:431 ./include/linux/mmap_lock.h:82 ./include/linux/mmap_lock.h:137 kernel/fork.c:623) 
| [ 13.045303][ C0] #3: ffffffff999749c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2562) 
| [   13.045687][    C0]
| [   13.045687][    C0] stack backtrace:
[   13.045963][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.045966][    C0] Call Trace:
[   13.045968][    C0]  <IRQ>
[ 13.045969][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 13.045977][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 13.045982][ C0] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 13.045986][ C0] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 13.045992][ C0] ? save_trace (kernel/locking/lockdep.c:594) 
[ 13.045998][ C0] mark_lock (kernel/locking/lockdep.c:4754) 
[ 13.046002][ C0] mark_usage (kernel/locking/lockdep.c:4643) 
[ 13.046005][ C0] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 13.046009][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 13.046012][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 13.046016][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.046019][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 13.046022][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 13.046025][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 13.046028][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 13.046031][ C0] simple_pin_fs (fs/libfs.c:1066) 
[ 13.046034][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 13.046037][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 13.046045][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 13.046048][ 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:2366) 
[ 13.046055][ C0] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 13.046058][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 13.046061][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 13.046064][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 13.046068][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.046073][ C0] ? stack_depot_save_flags (./include/linux/jhash.h:129 lib/stackdepot.c:514 lib/stackdepot.c:615) 
[ 13.046076][ C0] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 13.046081][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.046083][ C0] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 13.046086][ C0] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.046092][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 13.046095][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 13.046098][ C0] ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.046104][ C0] __put_net (net/core/net_namespace.c:732) 
[ 13.046108][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 13.046112][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.046115][ C0] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 13.046120][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 13.046124][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 13.046128][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 13.046131][ C0] ? note_gp_changes (kernel/rcu/tree.c:1324 (discriminator 1)) 
[ 13.046133][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 13.046138][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 13.046142][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 13.046147][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 13.046150][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 13.046153][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   13.046156][    C0]  </IRQ>
[   13.046157][    C0]  <TASK>
[ 13.046159][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.046161][ C0] RIP: 0010:stack_depot_save_flags (./include/linux/jhash.h:129 lib/stackdepot.c:514 lib/stackdepot.c:615) 
[ 13.046166][ C0] Code: fc 44 8d 0c 07 c1 c2 08 44 31 e2 89 d7 29 d0 c1 c7 10 31 f8 42 8d 3c 0a 89 c2 41 29 c1 01 f8 c1 ca 0d 44 31 ca 41 89 d4 29 d7 <01> c2 41 c1 c4 04 41 31 fc 83 fe 03 77 98 83 fe 02 0f 84 11 01 00
All code
========
   0:	fc                   	cld
   1:	44 8d 0c 07          	lea    (%rdi,%rax,1),%r9d
   5:	c1 c2 08             	rol    $0x8,%edx
   8:	44 31 e2             	xor    %r12d,%edx
   b:	89 d7                	mov    %edx,%edi
   d:	29 d0                	sub    %edx,%eax
   f:	c1 c7 10             	rol    $0x10,%edi
  12:	31 f8                	xor    %edi,%eax
  14:	42 8d 3c 0a          	lea    (%rdx,%r9,1),%edi
  18:	89 c2                	mov    %eax,%edx
  1a:	41 29 c1             	sub    %eax,%r9d
  1d:	01 f8                	add    %edi,%eax
  1f:	c1 ca 0d             	ror    $0xd,%edx
  22:	44 31 ca             	xor    %r9d,%edx
  25:	41 89 d4             	mov    %edx,%r12d
  28:	29 d7                	sub    %edx,%edi
  2a:*	01 c2                	add    %eax,%edx		<-- trapping instruction
  2c:	41 c1 c4 04          	rol    $0x4,%r12d
  30:	41 31 fc             	xor    %edi,%r12d
  33:	83 fe 03             	cmp    $0x3,%esi
  36:	77 98                	ja     0xffffffffffffffd0
  38:	83 fe 02             	cmp    $0x2,%esi
  3b:	0f                   	.byte 0xf
  3c:	84 11                	test   %dl,(%rcx)
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	01 c2                	add    %eax,%edx
   2:	41 c1 c4 04          	rol    $0x4,%r12d
   6:	41 31 fc             	xor    %edi,%r12d
   9:	83 fe 03             	cmp    $0x3,%esi
   c:	77 98                	ja     0xffffffffffffffa6
   e:	83 fe 02             	cmp    $0x2,%esi
  11:	0f                   	.byte 0xf
  12:	84 11                	test   %dl,(%rcx)
  14:	01 00                	add    %eax,(%rax)
[   13.046169][    C0] RSP: 0018:ffffc900006f7560 EFLAGS: 00000202
[   13.046172][    C0] RAX: 00000000f090d459 RBX: 0000000000092800 RCX: ffffc900006f760c
[   13.046175][    C0] RDX: 00000000a20ea37a RSI: 0000000000000011 RDI: 000000002692a692
[   13.046176][    C0] RBP: ffffc900006f75d0 R08: 0000000000000010 R09: 00000000f0679c06
[   13.046178][    C0] R10: 0000000000000078 R11: ffffffff99974ae0 R12: 00000000a20ea37a
[   13.046180][    C0] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000010
[ 13.046187][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 13.046191][ C0] kasan_save_stack (mm/kasan/common.c:49) 
[ 13.046193][ C0] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 13.046195][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.046197][ C0] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 13.046200][ C0] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.046203][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 13.046205][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 13.046207][ C0] ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.046211][ C0] ? anon_vma_clone (mm/rmap.c:142 mm/rmap.c:288) 
[ 13.046216][ C0] ? anon_vma_fork (mm/rmap.c:351) 
[ 13.046219][ C0] ? dup_mmap (kernel/fork.c:690) 
[ 13.046222][ C0] ? copy_mm (kernel/fork.c:1736 kernel/fork.c:1787) 
[ 13.046225][ C0] ? copy_process (kernel/fork.c:2430) 
[ 13.046227][ C0] ? kernel_clone (./include/linux/random.h:26 kernel/fork.c:2846) 
[ 13.046230][ C0] ? __do_sys_clone (kernel/fork.c:2977) 
[ 13.046233][ C0] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 13.046238][ C0] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 13.046243][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 13.046246][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 13.046249][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 13.046253][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 13.046256][ C0] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 13.046262][ C0] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 13.046266][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 13.046268][ C0] ? __pfx_anon_vma_clone (mm/rmap.c:439) 
[ 13.046272][ C0] ? anon_vma_fork (mm/rmap.c:351) 
[ 13.046276][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 13.046278][ C0] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.046281][ C0] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 13.046284][ C0] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.046288][ C0] ? anon_vma_clone (mm/rmap.c:142 mm/rmap.c:288) 
[ 13.046292][ C0] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 13.046295][ C0] __create_object (mm/kmemleak.c:770) 
[ 13.046298][ C0] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.046302][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 13.046305][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 13.046309][ C0] anon_vma_clone (mm/rmap.c:142 mm/rmap.c:288) 
[ 13.046315][ C0] anon_vma_fork (mm/rmap.c:351) 
[ 13.046319][ C0] dup_mmap (kernel/fork.c:690) 
[ 13.046324][ C0] ? __pfx_dup_mmap (kernel/fork.c:609) 
[ 13.046330][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.046335][ C0] copy_mm (kernel/fork.c:1736 kernel/fork.c:1787) 
[ 13.046338][ C0] copy_process (kernel/fork.c:2430) 
[ 13.046344][ C0] ? __pfx_copy_process (kernel/fork.c:2179) 
[ 13.046349][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 13.046353][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 13.046355][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 13.046360][ C0] kernel_clone (./include/linux/random.h:26 kernel/fork.c:2846) 
[ 13.046363][ C0] ? __pfx_kernel_clone (kernel/fork.c:2805) 
[ 13.046366][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 13.046373][ C0] __do_sys_clone (kernel/fork.c:2977) 
[ 13.046376][ C0] ? __pfx___do_sys_clone (kernel/fork.c:2977) 
[ 13.046379][ C0] ? __might_fault (mm/memory.c:7151 mm/memory.c:7145) 
[ 13.046389][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.046391][ C0] ? do_syscall_64 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/entry-common.h:198 arch/x86/entry/syscall_64.c:90) 
[ 13.046395][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 13.046398][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 13.046402][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   13.046405][    C0] RIP: 0033:0x7f435497da47
[ 13.046409][ C0] Code: 00 00 00 f3 0f 1e fa 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 39 41 89 c0 85 c0 75 2a 64 48 8b 04 25 10 00
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 f3                	add    %dh,%bl
   4:	0f 1e fa             	nop    %edx
   7:	64 48 8b 04 25 10 00 	mov    %fs:0x10,%rax
   e:	00 00 
  10:	45 31 c0             	xor    %r8d,%r8d
  13:	31 d2                	xor    %edx,%edx
  15:	31 f6                	xor    %esi,%esi
  17:	bf 11 00 20 01       	mov    $0x1200011,%edi
  1c:	4c 8d 90 d0 02 00 00 	lea    0x2d0(%rax),%r10
  23:	b8 38 00 00 00       	mov    $0x38,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 39                	ja     0x6b
  32:	41 89 c0             	mov    %eax,%r8d
  35:	85 c0                	test   %eax,%eax
  37:	75 2a                	jne    0x63
  39:	64                   	fs
  3a:	48                   	rex.W
  3b:	8b                   	.byte 0x8b
  3c:	04 25                	add    $0x25,%al
  3e:	10 00                	adc    %al,(%rax)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 39                	ja     0x41
   8:	41 89 c0             	mov    %eax,%r8d
   b:	85 c0                	test   %eax,%eax
   d:	75 2a                	jne    0x39
   f:	64                   	fs
  10:	48                   	rex.W
  11:	8b                   	.byte 0x8b
  12:	04 25                	add    $0x25,%al
  14:	10 00                	adc    %al,(%rax)
[   13.046411][    C0] RSP: 002b:00007ffee5492f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[   13.046414][    C0] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f435497da47
[   13.046416][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
[   13.046417][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 000055afe6bcc990
[   13.046419][    C0] R10: 00007f4353efde10 R11: 0000000000000246 R12: 0000000000000003
[   13.046421][    C0] R13: 00007ffee5493100 R14: 0000000000000000 R15: 00007ffee5493080
| [   13.077621][    C0] RCU nest depth: 0, expected: 0
| [   13.077959][    C0] INFO: lockdep is turned off.
| [   13.078156][    C0] Preemption disabled at:
| [ 13.078157][ C0] handle_softirqs (kernel/softirq.c:553) 
[   13.078562][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.078564][    C0] Call Trace:
[   13.078566][    C0]  <IRQ>
[ 13.078568][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 13.078576][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 13.078584][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 13.078589][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 13.078592][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 13.078598][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.078602][ 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) 
[ 13.078608][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 13.078612][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 13.078617][ 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) 
[ 13.078622][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 13.078625][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 13.078631][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 13.078635][ 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:2366) 
[ 13.078640][ C0] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 13.078644][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 13.078648][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 13.078650][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 13.078655][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.078658][ C0] ? stack_depot_save_flags (./include/linux/jhash.h:129 lib/stackdepot.c:514 lib/stackdepot.c:615) 
[ 13.078662][ C0] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 13.078665][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.078668][ C0] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 13.078670][ C0] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.078675][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 13.078679][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 13.078681][ C0] ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.078693][ C0] __put_net (net/core/net_namespace.c:732) 
[ 13.078697][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 13.078701][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.078705][ C0] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 13.078709][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 13.078715][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 13.078719][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 13.078723][ C0] ? note_gp_changes (kernel/rcu/tree.c:1324 (discriminator 1)) 
[ 13.078725][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 13.078730][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 13.078734][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 13.078740][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 13.078743][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 13.078746][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   13.078749][    C0]  </IRQ>
[   13.078750][    C0]  <TASK>
[ 13.078752][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.078754][ C0] RIP: 0010:stack_depot_save_flags (./include/linux/jhash.h:129 lib/stackdepot.c:514 lib/stackdepot.c:615) 
[ 13.078759][ C0] Code: fc 44 8d 0c 07 c1 c2 08 44 31 e2 89 d7 29 d0 c1 c7 10 31 f8 42 8d 3c 0a 89 c2 41 29 c1 01 f8 c1 ca 0d 44 31 ca 41 89 d4 29 d7 <01> c2 41 c1 c4 04 41 31 fc 83 fe 03 77 98 83 fe 02 0f 84 11 01 00
All code
========
   0:	fc                   	cld
   1:	44 8d 0c 07          	lea    (%rdi,%rax,1),%r9d
   5:	c1 c2 08             	rol    $0x8,%edx
   8:	44 31 e2             	xor    %r12d,%edx
   b:	89 d7                	mov    %edx,%edi
   d:	29 d0                	sub    %edx,%eax
   f:	c1 c7 10             	rol    $0x10,%edi
  12:	31 f8                	xor    %edi,%eax
  14:	42 8d 3c 0a          	lea    (%rdx,%r9,1),%edi
  18:	89 c2                	mov    %eax,%edx
  1a:	41 29 c1             	sub    %eax,%r9d
  1d:	01 f8                	add    %edi,%eax
  1f:	c1 ca 0d             	ror    $0xd,%edx
  22:	44 31 ca             	xor    %r9d,%edx
  25:	41 89 d4             	mov    %edx,%r12d
  28:	29 d7                	sub    %edx,%edi
  2a:*	01 c2                	add    %eax,%edx		<-- trapping instruction
  2c:	41 c1 c4 04          	rol    $0x4,%r12d
  30:	41 31 fc             	xor    %edi,%r12d
  33:	83 fe 03             	cmp    $0x3,%esi
  36:	77 98                	ja     0xffffffffffffffd0
  38:	83 fe 02             	cmp    $0x2,%esi
  3b:	0f                   	.byte 0xf
  3c:	84 11                	test   %dl,(%rcx)
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	01 c2                	add    %eax,%edx
   2:	41 c1 c4 04          	rol    $0x4,%r12d
   6:	41 31 fc             	xor    %edi,%r12d
   9:	83 fe 03             	cmp    $0x3,%esi
   c:	77 98                	ja     0xffffffffffffffa6
   e:	83 fe 02             	cmp    $0x2,%esi
  11:	0f                   	.byte 0xf
  12:	84 11                	test   %dl,(%rcx)
  14:	01 00                	add    %eax,(%rax)
[   13.078761][    C0] RSP: 0018:ffffc900006f7560 EFLAGS: 00000202
[   13.078764][    C0] RAX: 00000000f090d459 RBX: 0000000000092800 RCX: ffffc900006f760c
[   13.078766][    C0] RDX: 00000000a20ea37a RSI: 0000000000000011 RDI: 000000002692a692
[   13.078768][    C0] RBP: ffffc900006f75d0 R08: 0000000000000010 R09: 00000000f0679c06
[   13.078770][    C0] R10: 0000000000000078 R11: ffffffff99974ae0 R12: 00000000a20ea37a
[   13.078772][    C0] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000010
[ 13.078778][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 13.078782][ C0] kasan_save_stack (mm/kasan/common.c:49) 
[ 13.078784][ C0] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 13.078786][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.078788][ C0] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 13.078791][ C0] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.078794][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 13.078796][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 13.078798][ C0] ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.078801][ C0] ? anon_vma_clone (mm/rmap.c:142 mm/rmap.c:288) 
[ 13.078806][ C0] ? anon_vma_fork (mm/rmap.c:351) 
[ 13.078809][ C0] ? dup_mmap (kernel/fork.c:690) 
[ 13.078813][ C0] ? copy_mm (kernel/fork.c:1736 kernel/fork.c:1787) 
[ 13.078815][ C0] ? copy_process (kernel/fork.c:2430) 
[ 13.078818][ C0] ? kernel_clone (./include/linux/random.h:26 kernel/fork.c:2846) 
[ 13.078820][ C0] ? __do_sys_clone (kernel/fork.c:2977) 
[ 13.078823][ C0] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 13.078828][ C0] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 13.078832][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 13.078835][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 13.078839][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 13.078843][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 13.078846][ C0] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 13.078852][ C0] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 13.078856][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 13.078858][ C0] ? __pfx_anon_vma_clone (mm/rmap.c:439) 
[ 13.078861][ C0] ? anon_vma_fork (mm/rmap.c:351) 
[ 13.078865][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 13.078868][ C0] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.078871][ C0] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 13.078874][ C0] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.078878][ C0] ? anon_vma_clone (mm/rmap.c:142 mm/rmap.c:288) 
[ 13.078882][ C0] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 13.078885][ C0] __create_object (mm/kmemleak.c:770) 
[ 13.078889][ C0] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.078894][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 13.078897][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 13.078901][ C0] anon_vma_clone (mm/rmap.c:142 mm/rmap.c:288) 
[ 13.078906][ C0] anon_vma_fork (mm/rmap.c:351) 
[ 13.078911][ C0] dup_mmap (kernel/fork.c:690) 
[ 13.078916][ C0] ? __pfx_dup_mmap (kernel/fork.c:609) 
[ 13.078921][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.078926][ C0] copy_mm (kernel/fork.c:1736 kernel/fork.c:1787) 
[ 13.078930][ C0] copy_process (kernel/fork.c:2430) 
[ 13.078936][ C0] ? __pfx_copy_process (kernel/fork.c:2179) 
[ 13.078940][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 13.078944][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 13.078947][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 13.078951][ C0] kernel_clone (./include/linux/random.h:26 kernel/fork.c:2846) 
[ 13.078955][ C0] ? __pfx_kernel_clone (kernel/fork.c:2805) 
[ 13.078958][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 13.078965][ C0] __do_sys_clone (kernel/fork.c:2977) 
[ 13.078968][ C0] ? __pfx___do_sys_clone (kernel/fork.c:2977) 
[ 13.078971][ C0] ? __might_fault (mm/memory.c:7151 mm/memory.c:7145) 
[ 13.078980][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.078983][ C0] ? do_syscall_64 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/entry-common.h:198 arch/x86/entry/syscall_64.c:90) 
[ 13.078986][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 13.078990][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 13.078994][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   13.078996][    C0] RIP: 0033:0x7f435497da47
[ 13.079004][ C0] Code: Unable to access opcode bytes at 0x7f435497da1d.

Code starting with the faulting instruction
===========================================
[   13.079006][    C0] RSP: 002b:00007ffee5492f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[   13.079008][    C0] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f435497da47
[   13.079010][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
[   13.079012][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 000055afe6bcc990
[   13.079013][    C0] R10: 00007f4353efde10 R11: 0000000000000246 R12: 0000000000000003


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