======================================
| [ 12.262608][ C3] #1: ffff8880017c6890 (mapping.invalidate_lock){.+.+}-{4:4}, at: page_cache_ra_unbounded (./include/linux/pagemap.h:1518 mm/readahead.c:240) 
| [ 12.263238][ C3] #2: ffffffffaed74480 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2562) 
| [   12.263803][    C3]
| [   12.263803][    C3] stack backtrace:
[   12.264195][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.264197][    C3] Call Trace:
[   12.264200][    C3]  <IRQ>
[ 12.264203][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 12.264210][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 12.264215][ C3] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 12.264220][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 12.264226][ C3] ? save_trace (kernel/locking/lockdep.c:594) 
[ 12.264232][ C3] mark_lock (kernel/locking/lockdep.c:4754) 
[ 12.264236][ C3] mark_usage (kernel/locking/lockdep.c:4643) 
[ 12.264239][ C3] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 12.264245][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 12.264249][ C3] ? simple_pin_fs (fs/libfs.c:1066) 
[ 12.264254][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 12.264257][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 12.264260][ C3] ? simple_pin_fs (fs/libfs.c:1066) 
[ 12.264265][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 12.264269][ C3] ? simple_pin_fs (fs/libfs.c:1066) 
[ 12.264272][ C3] simple_pin_fs (fs/libfs.c:1066) 
[ 12.264276][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 12.264280][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 12.264286][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 12.264290][ 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) 
[ 12.264296][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 12.264300][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 12.264304][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 12.264307][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 12.264311][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 12.264316][ C3] ? __rcu_read_unlock (kernel/rcu/tree_plugin.h:441 (discriminator 2)) 
[ 12.264319][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.264323][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.264328][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 12.264333][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 12.264338][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.264342][ C3] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 12.264345][ C3] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 12.264353][ C3] __put_net (net/core/net_namespace.c:732) 
[ 12.264357][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 12.264362][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 12.264366][ C3] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 12.264371][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 12.264376][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 12.264381][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 12.264385][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 12.264389][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 12.264394][ C3] rcu_core (kernel/rcu/tree.c:2826) 
[ 12.264399][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 12.264405][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 12.264408][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 12.264411][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   12.264415][    C3]  </IRQ>
[   12.264417][    C3]  <TASK>
[ 12.264419][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 12.264422][ C3] RIP: 0010:__rcu_read_unlock (kernel/rcu/tree_plugin.h:441 (discriminator 2)) 
[ 12.264426][ C3] Code: 8b 85 08 04 00 00 85 c0 75 4b 65 48 8b 1d 60 d9 08 05 48 8d bb 04 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 41 8b
All code
========
   0:	8b 85 08 04 00 00    	mov    0x408(%rbp),%eax
   6:	85 c0                	test   %eax,%eax
   8:	75 4b                	jne    0x55
   a:	65 48 8b 1d 60 d9 08 	mov    %gs:0x508d960(%rip),%rbx        # 0x508d972
  11:	05 
  12:	48 8d bb 04 04 00 00 	lea    0x404(%rbx),%rdi
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df 
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
  2a:*	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx		<-- trapping instruction
  2e:	48 89 f8             	mov    %rdi,%rax
  31:	83 e0 07             	and    $0x7,%eax
  34:	83 c0 03             	add    $0x3,%eax
  37:	38 d0                	cmp    %dl,%al
  39:	7c 04                	jl     0x3f
  3b:	84 d2                	test   %dl,%dl
  3d:	75 41                	jne    0x80
  3f:	8b                   	.byte 0x8b

Code starting with the faulting instruction
===========================================
   0:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   4:	48 89 f8             	mov    %rdi,%rax
   7:	83 e0 07             	and    $0x7,%eax
   a:	83 c0 03             	add    $0x3,%eax
   d:	38 d0                	cmp    %dl,%al
   f:	7c 04                	jl     0x15
  11:	84 d2                	test   %dl,%dl
  13:	75 41                	jne    0x56
  15:	8b                   	.byte 0x8b
[   12.264429][    C3] RSP: 0018:ffffc900004c6aa8 EFLAGS: 00000a07
[   12.264433][    C3] RAX: dffffc0000000000 RBX: ffff888008f62340 RCX: ffffc900004c6a74
[   12.264435][    C3] RDX: 1ffff110011ec4e8 RSI: ffffffffae87168b RDI: ffff888008f62744
[   12.264438][    C3] RBP: ffff888008f62340 R08: 0000000000000000 R09: ffffc900004c6c09
[   12.264440][    C3] R10: 0000000000000050 R11: ffffc900004c6c08 R12: ffff888008f62340
[   12.264442][    C3] R13: ffffc900004c6bc8 R14: ffffc900004c0000 R15: ffffc900004c7990
[ 12.264451][ C3] unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.264454][ C3] ? do_iter_readv_writev (fs/read_write.c:823) 
[ 12.264459][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.264463][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 12.264468][ C3] ? do_iter_readv_writev (fs/read_write.c:823) 
[ 12.264471][ C3] ? kernel_text_address (kernel/extable.c:99) 
[ 12.264477][ C3] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 12.264482][ C3] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.264489][ C3] ? vfs_iter_read (fs/read_write.c:914) 
[ 12.264494][ C3] stack_trace_save (kernel/stacktrace.c:123) 
[ 12.264498][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 12.264502][ C3] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 12.264507][ C3] kasan_save_stack (mm/kasan/common.c:48) 
[ 12.264511][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 12.264515][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.264518][ C3] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 12.264521][ C3] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 12.264525][ C3] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 12.264528][ C3] ? __create_object (mm/kmemleak.c:770) 
[ 12.264531][ C3] ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 12.264534][ C3] ? fuse_request_alloc (fs/fuse/dev.c:142) 
[ 12.264539][ C3] ? fuse_get_req (fs/fuse/dev.c:224) 
[ 12.264543][ C3] ? fuse_simple_background (fs/fuse/dev.c:746 (discriminator 3)) 
[ 12.264547][ C3] ? fuse_send_readpages (fs/fuse/file.c:995) 
[ 12.264552][ C3] ? fuse_readahead (fs/fuse/file.c:1033) 
[ 12.264555][ C3] ? read_pages (mm/readahead.c:160) 
[ 12.264559][ C3] ? page_cache_ra_unbounded (./include/linux/fs.h:934 mm/readahead.c:298) 
[ 12.264562][ C3] ? filemap_get_pages (mm/filemap.c:2592) 
[ 12.264566][ C3] ? filemap_read (mm/filemap.c:2702) 
[ 12.264568][ C3] ? do_iter_readv_writev (fs/read_write.c:823) 
[ 12.264573][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 12.264576][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 12.264579][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 12.264583][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 12.264587][ C3] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 12.264594][ C3] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 12.264599][ C3] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 12.264605][ C3] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.264609][ C3] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 12.264613][ C3] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 12.264617][ C3] ? fuse_request_alloc (fs/fuse/dev.c:142) 
[ 12.264622][ C3] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 12.264626][ C3] __create_object (mm/kmemleak.c:770) 
[ 12.264630][ C3] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 12.264637][ C3] fuse_request_alloc (fs/fuse/dev.c:142) 
[ 12.264641][ C3] fuse_get_req (fs/fuse/dev.c:224) 
[ 12.264646][ C3] ? __pfx_fuse_get_req (fs/fuse/dev.c:197) 
[ 12.264650][ C3] ? xa_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/xarray.c:1621) 
[ 12.264654][ C3] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 12.264658][ C3] ? xa_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/xarray.c:1621) 
[ 12.264661][ C3] ? xa_load (lib/xarray.c:1613) 
[ 12.264666][ C3] fuse_simple_background (fs/fuse/dev.c:746 (discriminator 3)) 
[ 12.264670][ C3] fuse_send_readpages (fs/fuse/file.c:995) 
[ 12.264677][ C3] fuse_readahead (fs/fuse/file.c:1033) 
[ 12.264685][ C3] ? __pfx_fuse_readahead (fs/fuse/file.c:1006) 
[ 12.264689][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 12.264695][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 12.264700][ C3] read_pages (mm/readahead.c:160) 
[ 12.264707][ C3] ? __pfx_read_pages (mm/readahead.c:147) 
[ 12.264716][ C3] page_cache_ra_unbounded (./include/linux/fs.h:934 mm/readahead.c:298) 
[ 12.264724][ C3] filemap_get_pages (mm/filemap.c:2592) 
[ 12.264729][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 12.264733][ C3] ? __pfx_filemap_get_pages (mm/filemap.c:2566) 
[ 12.264741][ C3] filemap_read (mm/filemap.c:2702) 
[ 12.264747][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 12.264752][ C3] ? __pfx_filemap_read (mm/filemap.c:2667) 
[ 12.264755][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 12.264759][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.264762][ C3] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 12.264766][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.264770][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.264773][ C3] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 12.264779][ C3] ? fuse_update_get_attr (fs/fuse/dir.c:1340) 
[ 12.264787][ C3] do_iter_readv_writev (fs/read_write.c:823) 
[ 12.264791][ C3] ? __pfx_do_iter_readv_writev (fs/read_write.c:812) 
[ 12.264799][ C3] vfs_iter_read (fs/read_write.c:914) 
[ 12.264805][ C3] backing_file_read_iter (fs/backing-file.c:183) 
[ 12.264809][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 12.264813][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.264816][ C3] ? __kasan_kmalloc (mm/kasan/common.c:398) 
[ 12.264822][ C3] ovl_read_iter (fs/overlayfs/file.c:341) 
[ 12.264826][ C3] ? __pfx_ovl_read_iter (fs/overlayfs/file.c:326) 
[ 12.264830][ C3] ? __pfx_ovl_file_accessed (fs/overlayfs/file.c:298) 
[ 12.264835][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 12.264840][ C3] __kernel_read (fs/read_write.c:528 (discriminator 1)) 
[ 12.264844][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 12.264847][ C3] ? __pfx___kernel_read (fs/read_write.c:505) 
[ 12.264853][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 12.264857][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 12.264862][ C3] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 21)) 
[ 12.264865][ C3] ? __kmalloc_cache_noprof (mm/slub.c:4360) 
[ 12.264871][ C3] load_elf_binary (fs/binfmt_elf.c:477 fs/binfmt_elf.c:917) 
[ 12.264878][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 12.264884][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 12.264887][ C3] ? __pfx_load_elf_binary (fs/binfmt_elf.c:825) 
[ 12.264890][ C3] ? exec_binprm (fs/exec.c:1778 fs/exec.c:1810) 
[ 12.264897][ C3] exec_binprm (fs/exec.c:1778 fs/exec.c:1810) 
[ 12.264902][ C3] ? __pfx_exec_binprm (fs/exec.c:1794) 
[ 12.264905][ C3] ? bprm_execve (fs/exec.c:1852 fs/exec.c:1838) 
[ 12.264911][ C3] bprm_execve (fs/exec.c:1862 fs/exec.c:1838) 
[ 12.264915][ C3] kernel_execve (fs/exec.c:2028) 
[ 12.264920][ C3] call_usermodehelper_exec_async (kernel/umh.c:113) 
[ 12.264924][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 12.264928][ C3] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 
[ 12.264932][ C3] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 
[ 12.264936][ C3] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 12.264940][ C3] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 
[ 12.264944][ C3] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   12.332518][    C3] RCU nest depth: 0, expected: 0
| [   12.332749][    C3] INFO: lockdep is turned off.
| [   12.332977][    C3] Preemption disabled at:
| [ 12.332979][ C3] handle_softirqs (kernel/softirq.c:553) 
[   12.333451][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.333453][    C3] Call Trace:
[   12.333454][    C3]  <IRQ>
[ 12.333457][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 12.333465][ C3] __might_resched (kernel/sched/core.c:8819) 
[ 12.333471][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 12.333475][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 12.333477][ C3] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 12.333482][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 12.333487][ 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) 
[ 12.333492][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 12.333495][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 12.333500][ 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) 
[ 12.333504][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 12.333507][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 12.333513][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 12.333516][ 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) 
[ 12.333521][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 12.333525][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 12.333529][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 12.333531][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 12.333536][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 12.333539][ C3] ? __rcu_read_unlock (kernel/rcu/tree_plugin.h:441 (discriminator 2)) 
[ 12.333541][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.333545][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.333550][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 12.333554][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 12.333559][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.333562][ C3] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 12.333565][ C3] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 12.333571][ C3] __put_net (net/core/net_namespace.c:732) 
[ 12.333575][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 12.333579][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 12.333582][ C3] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 12.333586][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 12.333591][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 12.333595][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 12.333599][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 12.333602][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 12.333607][ C3] rcu_core (kernel/rcu/tree.c:2826) 
[ 12.333610][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 12.333615][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 12.333618][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 12.333620][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   12.333623][    C3]  </IRQ>
[   12.333624][    C3]  <TASK>
[ 12.333626][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 12.333628][ C3] RIP: 0010:__rcu_read_unlock (kernel/rcu/tree_plugin.h:441 (discriminator 2)) 
[ 12.333632][ C3] Code: 8b 85 08 04 00 00 85 c0 75 4b 65 48 8b 1d 60 d9 08 05 48 8d bb 04 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 41 8b
All code
========
   0:	8b 85 08 04 00 00    	mov    0x408(%rbp),%eax
   6:	85 c0                	test   %eax,%eax
   8:	75 4b                	jne    0x55
   a:	65 48 8b 1d 60 d9 08 	mov    %gs:0x508d960(%rip),%rbx        # 0x508d972
  11:	05 
  12:	48 8d bb 04 04 00 00 	lea    0x404(%rbx),%rdi
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df 
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
  2a:*	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx		<-- trapping instruction
  2e:	48 89 f8             	mov    %rdi,%rax
  31:	83 e0 07             	and    $0x7,%eax
  34:	83 c0 03             	add    $0x3,%eax
  37:	38 d0                	cmp    %dl,%al
  39:	7c 04                	jl     0x3f
  3b:	84 d2                	test   %dl,%dl
  3d:	75 41                	jne    0x80
  3f:	8b                   	.byte 0x8b

Code starting with the faulting instruction
===========================================
   0:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   4:	48 89 f8             	mov    %rdi,%rax
   7:	83 e0 07             	and    $0x7,%eax
   a:	83 c0 03             	add    $0x3,%eax
   d:	38 d0                	cmp    %dl,%al
   f:	7c 04                	jl     0x15
  11:	84 d2                	test   %dl,%dl
  13:	75 41                	jne    0x56
  15:	8b                   	.byte 0x8b
[   12.333634][    C3] RSP: 0018:ffffc900004c6aa8 EFLAGS: 00000a07
[   12.333638][    C3] RAX: dffffc0000000000 RBX: ffff888008f62340 RCX: ffffc900004c6a74
[   12.333640][    C3] RDX: 1ffff110011ec4e8 RSI: ffffffffae87168b RDI: ffff888008f62744
[   12.333642][    C3] RBP: ffff888008f62340 R08: 0000000000000000 R09: ffffc900004c6c09
[   12.333644][    C3] R10: 0000000000000050 R11: ffffc900004c6c08 R12: ffff888008f62340
[   12.333646][    C3] R13: ffffc900004c6bc8 R14: ffffc900004c0000 R15: ffffc900004c7990
[ 12.333652][ C3] unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.333655][ C3] ? do_iter_readv_writev (fs/read_write.c:823) 
[ 12.333659][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.333662][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 12.333666][ C3] ? do_iter_readv_writev (fs/read_write.c:823) 
[ 12.333668][ C3] ? kernel_text_address (kernel/extable.c:99) 
[ 12.333673][ C3] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 12.333678][ C3] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.333683][ C3] ? vfs_iter_read (fs/read_write.c:914) 
[ 12.333687][ C3] stack_trace_save (kernel/stacktrace.c:123) 
[ 12.333690][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 12.333694][ C3] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 12.333698][ C3] kasan_save_stack (mm/kasan/common.c:48) 
[ 12.333702][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 12.333705][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.333708][ C3] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 12.333710][ C3] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 12.333713][ C3] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 12.333716][ C3] ? __create_object (mm/kmemleak.c:770) 
[ 12.333719][ C3] ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 12.333722][ C3] ? fuse_request_alloc (fs/fuse/dev.c:142) 
[ 12.333726][ C3] ? fuse_get_req (fs/fuse/dev.c:224) 
[ 12.333729][ C3] ? fuse_simple_background (fs/fuse/dev.c:746 (discriminator 3)) 
[ 12.333732][ C3] ? fuse_send_readpages (fs/fuse/file.c:995) 
[ 12.333736][ C3] ? fuse_readahead (fs/fuse/file.c:1033) 
[ 12.333739][ C3] ? read_pages (mm/readahead.c:160) 
[ 12.333743][ C3] ? page_cache_ra_unbounded (./include/linux/fs.h:934 mm/readahead.c:298) 
[ 12.333746][ C3] ? filemap_get_pages (mm/filemap.c:2592) 
[ 12.333749][ C3] ? filemap_read (mm/filemap.c:2702) 
[ 12.333751][ C3] ? do_iter_readv_writev (fs/read_write.c:823) 
[ 12.333755][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 12.333757][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 12.333760][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 12.333764][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 12.333767][ C3] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 12.333772][ C3] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 12.333776][ C3] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 12.333780][ C3] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.333783][ C3] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 12.333786][ C3] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 12.333790][ C3] ? fuse_request_alloc (fs/fuse/dev.c:142) 
[ 12.333794][ C3] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 12.333797][ C3] __create_object (mm/kmemleak.c:770) 
[ 12.333800][ C3] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 12.333805][ C3] fuse_request_alloc (fs/fuse/dev.c:142) 
[ 12.333809][ C3] fuse_get_req (fs/fuse/dev.c:224) 
[ 12.333813][ C3] ? __pfx_fuse_get_req (fs/fuse/dev.c:197) 
[ 12.333817][ C3] ? xa_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/xarray.c:1621) 
[ 12.333819][ C3] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 12.333823][ C3] ? xa_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/xarray.c:1621) 
[ 12.333826][ C3] ? xa_load (lib/xarray.c:1613) 
[ 12.333829][ C3] fuse_simple_background (fs/fuse/dev.c:746 (discriminator 3)) 
[ 12.333833][ C3] fuse_send_readpages (fs/fuse/file.c:995) 
[ 12.333838][ C3] fuse_readahead (fs/fuse/file.c:1033) 
[ 12.333845][ C3] ? __pfx_fuse_readahead (fs/fuse/file.c:1006) 
[ 12.333848][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 12.333853][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 12.333857][ C3] read_pages (mm/readahead.c:160) 
[ 12.333862][ C3] ? __pfx_read_pages (mm/readahead.c:147) 
[ 12.333869][ C3] page_cache_ra_unbounded (./include/linux/fs.h:934 mm/readahead.c:298) 
[ 12.333875][ C3] filemap_get_pages (mm/filemap.c:2592) 
[ 12.333879][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 12.333882][ C3] ? __pfx_filemap_get_pages (mm/filemap.c:2566) 
[ 12.333888][ C3] filemap_read (mm/filemap.c:2702) 
[ 12.333892][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 12.333896][ C3] ? __pfx_filemap_read (mm/filemap.c:2667) 
[ 12.333898][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 12.333902][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.333904][ C3] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 12.333907][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.333910][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.333912][ C3] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 12.333918][ C3] ? fuse_update_get_attr (fs/fuse/dir.c:1340) 
[ 12.333924][ C3] do_iter_readv_writev (fs/read_write.c:823) 
[ 12.333927][ C3] ? __pfx_do_iter_readv_writev (fs/read_write.c:812) 
[ 12.333933][ C3] vfs_iter_read (fs/read_write.c:914) 
[ 12.333937][ C3] backing_file_read_iter (fs/backing-file.c:183) 
[ 12.333941][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 12.333944][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.333947][ C3] ? __kasan_kmalloc (mm/kasan/common.c:398) 
[ 12.333951][ C3] ovl_read_iter (fs/overlayfs/file.c:341) 
[ 12.333956][ C3] ? __pfx_ovl_read_iter (fs/overlayfs/file.c:326) 
[ 12.333959][ C3] ? __pfx_ovl_file_accessed (fs/overlayfs/file.c:298) 
[ 12.333963][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 12.333967][ C3] __kernel_read (fs/read_write.c:528 (discriminator 1)) 
[ 12.333970][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 12.333973][ C3] ? __pfx___kernel_read (fs/read_write.c:505) 
[ 12.333977][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 12.333980][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 12.333984][ C3] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 21)) 
[ 12.333987][ C3] ? __kmalloc_cache_noprof (mm/slub.c:4360) 
[ 12.333992][ C3] load_elf_binary (fs/binfmt_elf.c:477 fs/binfmt_elf.c:917) 
[ 12.333996][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 12.334001][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 12.334004][ C3] ? __pfx_load_elf_binary (fs/binfmt_elf.c:825) 
[ 12.334006][ C3] ? exec_binprm (fs/exec.c:1778 fs/exec.c:1810) 
[ 12.334012][ C3] exec_binprm (fs/exec.c:1778 fs/exec.c:1810) 
[ 12.334017][ C3] ? __pfx_exec_binprm (fs/exec.c:1794) 
[ 12.334019][ C3] ? bprm_execve (fs/exec.c:1852 fs/exec.c:1838) 
[ 12.334024][ C3] bprm_execve (fs/exec.c:1862 fs/exec.c:1838) 
[ 12.334027][ C3] kernel_execve (fs/exec.c:2028) 
[ 12.334031][ C3] call_usermodehelper_exec_async (kernel/umh.c:113) 
[ 12.334036][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 12.334039][ C3] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 
[ 12.334042][ C3] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 
[ 12.334046][ C3] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 12.334049][ C3] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
handle_softirqs:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal