======================================
| [ 13.067514][ C2] #0: ffff88800bbef5a0 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff (./include/linux/mmap_lock.h:375 mm/util.c:577) 
| [ 13.067904][ C2] #1: ffffffffb5b793c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   13.068282][    C2]
| [   13.068282][    C2] stack backtrace:
[   13.068556][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.068558][    C2] Call Trace:
[   13.068560][    C2]  <IRQ>
[ 13.068562][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 13.068568][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 13.068572][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 13.068579][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 13.068582][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 13.068585][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 13.068587][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 13.068593][ C2] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4148 mm/slub.c:4197 mm/slub.c:4204) 
[ 13.068598][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 13.068601][ C2] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 13.068604][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 13.068607][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 13.068609][ C2] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 13.068613][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 13.068616][ C2] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 13.068618][ C2] xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 13.068621][ C2] ? __pfx_xa_set_mark (lib/xarray.c:2144) 
[ 13.068623][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 13.068628][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 13.068632][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:54 lib/ref_tracker.c:223) 
[ 13.068637][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 13.068640][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 13.068643][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:213) 
[ 13.068647][ C2] ? ref_tracker_free (lib/ref_tracker.c:281) 
[ 13.068651][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 13.068653][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:281) 
[ 13.068657][ 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:2368) 
[ 13.068662][ C2] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2578) 
[ 13.068665][ C2] ? rcu_core (kernel/rcu/tree.c:2834) 
[ 13.068667][ C2] ? handle_softirqs (kernel/softirq.c:580) 
[ 13.068671][ C2] __put_net (./include/linux/llist.h:238 ./include/linux/llist.h:265 net/core/net_namespace.c:732) 
[ 13.068675][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.068680][ C2] ? __pfx___put_net (net/core/net_namespace.c:729) 
[ 13.068684][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 13.068689][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2368) 
[ 13.068693][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 13.068696][ C2] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2578) 
[ 13.068700][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 13.068703][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 13.068707][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 13.068710][ C2] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 13.068713][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 13.068719][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 13.068722][ C2] handle_softirqs (kernel/softirq.c:580) 
[ 13.068726][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 13.068729][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 13.068731][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   13.068735][    C2]  </IRQ>
[   13.068736][    C2]  <TASK>
[ 13.068737][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.068741][ C2] RIP: 0010:unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 13.068745][ C2] Code: ea 03 80 3c 02 00 75 36 48 8b 7b 58 e8 e2 13 0e 00 85 c0 74 cf 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 <75> 1c 48 8b 43 58 5b 5d e9 bc 66 9e 02 e8 07 a7 90 00 eb a0 48 89
All code
========
   0:	ea                   	(bad)
   1:	03 80 3c 02 00 75    	add    0x7500023c(%rax),%eax
   7:	36 48 8b 7b 58       	ss mov 0x58(%rbx),%rdi
   c:	e8 e2 13 0e 00       	call   0xe13f3
  11:	85 c0                	test   %eax,%eax
  13:	74 cf                	je     0xffffffffffffffe4
  15:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1c:	fc ff df 
  1f:	48 89 ea             	mov    %rbp,%rdx
  22:	48 c1 ea 03          	shr    $0x3,%rdx
  26:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
  2a:*	75 1c                	jne    0x48		<-- trapping instruction
  2c:	48 8b 43 58          	mov    0x58(%rbx),%rax
  30:	5b                   	pop    %rbx
  31:	5d                   	pop    %rbp
  32:	e9 bc 66 9e 02       	jmp    0x29e66f3
  37:	e8 07 a7 90 00       	call   0x90a743
  3c:	eb a0                	jmp    0xffffffffffffffde
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	75 1c                	jne    0x1e
   2:	48 8b 43 58          	mov    0x58(%rbx),%rax
   6:	5b                   	pop    %rbx
   7:	5d                   	pop    %rbp
   8:	e9 bc 66 9e 02       	jmp    0x29e66c9
   d:	e8 07 a7 90 00       	call   0x90a719
  12:	eb a0                	jmp    0xffffffffffffffb4
  14:	48                   	rex.W
  15:	89                   	.byte 0x89
[   13.068747][    C2] RSP: 0018:ffffc90000af7130 EFLAGS: 00000246
[   13.068750][    C2] RAX: dffffc0000000000 RBX: ffffc90000af7148 RCX: ffffc90000af6ff4
[   13.068752][    C2] RDX: 1ffff9200015ee34 RSI: ffffffffb568fd19 RDI: ffffffffb29b9248
[   13.068754][    C2] RBP: ffffc90000af71a0 R08: 0000000000000000 R09: ffffc90000af7189
[   13.068756][    C2] R10: 0000000000000000 R11: ffffc90000af7188 R12: ffffc90000af7210
[   13.068757][    C2] R13: 0000000000000000 R14: ffff88800b7bc5c0 R15: 0000000000092cc0
[ 13.068762][ C2] ? exec_binprm (fs/exec.c:1667 fs/exec.c:1697) 
[ 13.068766][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 13.068770][ C2] arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 13.068777][ C2] ? exec_binprm (fs/exec.c:1667 fs/exec.c:1697) 
[ 13.068780][ C2] stack_trace_save (kernel/stacktrace.c:123) 
[ 13.068784][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 13.068788][ C2] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 13.068792][ C2] kasan_save_stack (mm/kasan/common.c:48) 
[ 13.068795][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 13.068797][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.068800][ C2] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 13.068803][ C2] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4148 mm/slub.c:4197 mm/slub.c:4204) 
[ 13.068805][ C2] ? __alloc_object (mm/kmemleak.c:476 mm/kmemleak.c:656) 
[ 13.068810][ C2] ? __create_object (mm/kmemleak.c:765) 
[ 13.068813][ C2] ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4152 mm/slub.c:4197 mm/slub.c:4204) 
[ 13.068815][ C2] ? vm_area_alloc (mm/vma_init.c:31) 
[ 13.068820][ C2] ? __mmap_region (mm/vma.c:2446 mm/vma.c:2615) 
[ 13.068824][ C2] ? do_mmap (mm/mmap.c:561) 
[ 13.068827][ C2] ? vm_mmap_pgoff (mm/util.c:579) 
[ 13.068829][ C2] ? elf_load (fs/binfmt_elf.c:384 fs/binfmt_elf.c:407) 
[ 13.068834][ C2] ? load_elf_binary (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/thread_info.h:126 fs/binfmt_elf.c:1175) 
[ 13.068837][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 13.068841][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 13.068844][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 13.068847][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 13.068851][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 13.068854][ C2] ? get_partial_node.part.0 (mm/slub.c:2903) 
[ 13.068859][ C2] ? ___slab_alloc (mm/slub.c:2864 mm/slub.c:2981 mm/slub.c:3839) 
[ 13.068862][ C2] ? __alloc_object (mm/kmemleak.c:476 mm/kmemleak.c:656) 
[ 13.068867][ C2] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.068870][ C2] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 13.068873][ C2] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4148 mm/slub.c:4197 mm/slub.c:4204) 
[ 13.068876][ C2] ? vm_area_alloc (mm/vma_init.c:31) 
[ 13.068881][ C2] __alloc_object (mm/kmemleak.c:476 mm/kmemleak.c:656) 
[ 13.068884][ C2] __create_object (mm/kmemleak.c:765) 
[ 13.068888][ C2] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4152 mm/slub.c:4197 mm/slub.c:4204) 
[ 13.068891][ C2] ? vma_merge_new_range (mm/vma.c:1059 (discriminator 1)) 
[ 13.068896][ C2] vm_area_alloc (mm/vma_init.c:31) 
[ 13.068899][ C2] __mmap_region (mm/vma.c:2446 mm/vma.c:2615) 
[ 13.068904][ C2] ? __pfx___mmap_region (mm/vma.c:2592) 
[ 13.068909][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 13.068912][ C2] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 13.068916][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 13.068924][ C2] ? vms_complete_munmap_vmas (mm/vma.c:1293) 
[ 13.068937][ C2] ? mmap_region (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/mman.h:204 mm/vma.c:2669) 
[ 13.068941][ C2] ? __pfx_ovl_mmap (fs/overlayfs/file.c:480) 
[ 13.068946][ C2] do_mmap (mm/mmap.c:561) 
[ 13.068951][ C2] ? __pfx_do_mmap (mm/mmap.c:342) 
[ 13.068953][ C2] ? down_write_killable (./arch/x86/include/asm/preempt.h:104 kernel/locking/rwsem.c:1307 kernel/locking/rwsem.c:1318 kernel/locking/rwsem.c:1590) 
[ 13.068956][ C2] ? __pfx_down_write_killable (kernel/locking/rwsem.c:1586) 
[ 13.068959][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 13.068963][ C2] vm_mmap_pgoff (mm/util.c:579) 
[ 13.068967][ C2] ? __pfx_vm_mmap_pgoff (mm/util.c:567) 
[ 13.068971][ C2] ? __pfx_get_random_u64 (drivers/char/random.c:555) 
[ 13.068976][ C2] elf_load (fs/binfmt_elf.c:384 fs/binfmt_elf.c:407) 
[ 13.068981][ C2] load_elf_binary (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/thread_info.h:126 fs/binfmt_elf.c:1175) 
[ 13.068989][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 13.068992][ C2] ? __pfx_load_elf_binary (fs/binfmt_elf.c:818) 
[ 13.068995][ C2] ? exec_binprm (fs/exec.c:1665 fs/exec.c:1697) 
[ 13.069000][ C2] exec_binprm (fs/exec.c:1667 fs/exec.c:1697) 
[ 13.069004][ C2] ? __pfx_exec_binprm (fs/exec.c:1681) 
[ 13.069006][ C2] ? bprm_execve (fs/exec.c:1739 fs/exec.c:1725) 
[ 13.069011][ C2] bprm_execve (fs/exec.c:1749 fs/exec.c:1725) 
[ 13.069013][ C2] kernel_execve (fs/exec.c:1915) 
[ 13.069017][ C2] call_usermodehelper_exec_async (kernel/umh.c:113) 
[ 13.069022][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 13.069025][ C2] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 
[ 13.069028][ C2] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 
[ 13.069032][ C2] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 13.069034][ C2] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock