======================================
| [   23.818045][    C0]  #0: ff1100000d30bf78 (&mm->mmap_lock){++++}-{4:4}, at: map_vdso (./include/linux/mmap_lock.h:554 arch/x86/entry/vdso/vma.c:136)
| [   23.818272][    C0]  #1: ffffffffaf577c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:300 (discriminator 2) kernel/rcu/tree.c:2611 (discriminator 2))
| [   23.818436][    C0]
| [   23.818436][    C0] stack backtrace:
[   23.818555][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.818557][    C0] Call Trace:
[   23.818559][    C0]  <IRQ>
[   23.818560][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.818564][    C0]  print_usage_bug.part.0.cold (kernel/locking/lockdep.c:4042)
[   23.818566][    C0]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   23.818570][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4056 kernel/locking/lockdep.c:4267)
[   23.818571][    C0]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[   23.818574][    C0]  ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[   23.818576][    C0]  ? save_trace (kernel/locking/lockdep.c:589)
[   23.818577][    C0]  ? xas_store.cold (./include/linux/xarray.h:1235 (discriminator 7) lib/xarray.c:456 (discriminator 7) lib/xarray.c:519 (discriminator 7) lib/xarray.c:767 (discriminator 7) lib/xarray.c:852 (discriminator 7))
[   23.818580][    C0]  mark_lock (kernel/locking/lockdep.c:4753)
[   23.818581][    C0]  mark_usage (kernel/locking/lockdep.c:4642)
[   23.818583][    C0]  __lock_acquire (kernel/locking/lockdep.c:5191)
[   23.818584][    C0]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.818586][    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[   23.818589][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.818590][    C0]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[   23.818592][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.818594][    C0]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.818596][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1))
[   23.818598][    C0]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[   23.818599][    C0] tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[   23.818601][    C0]  tcf_action_rcu_free (net/sched/act_api.c:367 net/sched/act_api.c:378)
[   23.818603][    C0]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[   23.818604][    C0]  rcu_do_batch (kernel/rcu/tree.c:2617)
[   23.818607][    C0]  ? trace_rcu_batch_end (./include/trace/events/rcu.h:714 (discriminator 19))
[   23.818609][    C0]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.818611][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   23.818612][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.818614][    C0]  rcu_core (kernel/rcu/tree.c:2869)
[   23.818616][    C0]  handle_softirqs (kernel/softirq.c:622)
[   23.818618][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.818621][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.818622][    C0]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[   23.818624][    C0]  __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735)
[   23.818626][    C0]  irq_exit_rcu (kernel/softirq.c:752)
[   23.818627][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[   23.818629][    C0]  </IRQ>
[   23.818629][    C0]  <TASK>
[   23.818630][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[   23.818632][    C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 12) kernel/locking/spinlock.c:198 (discriminator 12))
[   23.818634][    C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 21 7e ca fd 48 89 df e8 a9 d4 ca fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 30 62 bd fd 65 8b 05 29 0a fe 01 85 c0 74 12 5b
All code
========
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 21 7e ca fd       	call   0xfffffffffdca7e34
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 a9 d4 ca fd       	call   0xfffffffffdcad4c4
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 1f                	jne    0x42
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 2f                	jne    0x59
  2a:*	bf 01 00 00 00       	mov    $0x1,%edi		<-- trapping instruction
  2f:	e8 30 62 bd fd       	call   0xfffffffffdbd6264
  34:	65 8b 05 29 0a fe 01 	mov    %gs:0x1fe0a29(%rip),%eax        # 0x1fe0a64
  3b:	85 c0                	test   %eax,%eax
  3d:	74 12                	je     0x51
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	bf 01 00 00 00       	mov    $0x1,%edi
   5:	e8 30 62 bd fd       	call   0xfffffffffdbd623a
   a:	65 8b 05 29 0a fe 01 	mov    %gs:0x1fe0a29(%rip),%eax        # 0x1fe0a3a
  11:	85 c0                	test   %eax,%eax
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
[   23.818636][    C0] RSP: 0018:ffa0000000517788 EFLAGS: 00000246
[   23.818639][    C0] RAX: 0000000000000092 RBX: ff11000001041bc0 RCX: ffffffffae690613
[   23.818640][    C0] RDX: ff1100000c5c8040 RSI: ffffffffaf001bcb RDI: ffffffffaea6f6c0
[   23.818641][    C0] RBP: 0000000000000206 R08: 0000000000000000 R09: 0000000000000000
[   23.818642][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff11000001041bc0
[   23.818643][    C0] R13: ff110000010427c0 R14: ff110000054f5600 R15: ffd4000000153d00
[   23.818644][    C0]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   23.818647][    C0]  get_from_partial_node (./include/linux/spinlock.h:408 (discriminator 3) mm/slub.c:3835 (discriminator 3))
[   23.818651][    C0]  ___slab_alloc (mm/slub.c:3924 (discriminator 1) mm/slub.c:4441 (discriminator 1))
[   23.818653][    C0]  ? mas_preallocate (lib/maple_tree.c:139 (discriminator 7) lib/maple_tree.c:1089 (discriminator 7) lib/maple_tree.c:4961 (discriminator 7))
[   23.818656][    C0]  ? __pcs_replace_empty_main (mm/slub.c:4615 (discriminator 20))
[   23.818658][    C0]  ? mas_preallocate (lib/maple_tree.c:139 (discriminator 7) lib/maple_tree.c:1089 (discriminator 7) lib/maple_tree.c:4961 (discriminator 7))
[   23.818660][    C0]  kmem_cache_alloc_noprof (mm/slub.c:4511 mm/slub.c:4887 mm/slub.c:4906)
[   23.818662][    C0]  mas_preallocate (lib/maple_tree.c:139 (discriminator 7) lib/maple_tree.c:1089 (discriminator 7) lib/maple_tree.c:4961 (discriminator 7))
[   23.818664][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.818666][    C0]  ? mas_wr_slot_store (lib/maple_tree.c:3228)
[   23.818669][    C0]  ? mt_find (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) lib/maple_tree.c:6290 (discriminator 2))
[   23.818671][    C0]  vma_link (mm/vma.h:577 mm/vma.c:1849)
[   23.818674][    C0]  ? vma_prepare (./include/linux/bitmap.h:449 (discriminator 2))
[   23.818676][    C0]  ? find_vma_intersection (mm/mmap.c:891)
[   23.818679][    C0]  ? find_vma (mm/mmap.c:909)
[   23.818681][    C0]  insert_vm_struct (mm/vma.c:3325)
[   23.818683][    C0]  _install_special_mapping (mm/mmap.c:1473 mm/mmap.c:1509)
[   23.818686][    C0]  map_vdso (arch/x86/entry/vdso/vma.c:151)
[   23.818688][    C0]  load_elf_binary (fs/binfmt_elf.c:1291)
[   23.818692][    C0]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.818694][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.818696][    C0]  ? load_elf_interp.isra.0 (fs/binfmt_elf.c:693 (discriminator 4))
[   23.818697][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.818699][    C0]  ? exec_binprm (fs/exec.c:1662 fs/exec.c:1696)
[   23.818701][    C0]  exec_binprm (fs/exec.c:1664 fs/exec.c:1696)
[   23.818703][    C0]  ? check_unsafe_exec (fs/exec.c:1522)
[   23.818705][    C0]  bprm_execve (fs/exec.c:1748 fs/exec.c:1724)
[   23.818707][    C0]  do_execveat_common.isra.0 (fs/exec.c:1846)
[   23.818709][    C0]  __x64_sys_execve (fs/exec.c:1930 (discriminator 2) fs/exec.c:1924 (discriminator 2) fs/exec.c:1924 (discriminator 2))
[   23.818710][    C0]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.818712][    C0]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.818715][    C0]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.818716][    C0]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.818718][    C0] RIP: 0033:0x7f4a8259015b
[   23.818724][    C0] Code: Unable to access opcode bytes at 0x7f4a82590131.

Code starting with the faulting instruction
===========================================
[   23.818725][    C0] RSP: 002b:00007ffd857ca8d8 EFLAGS: 00000202 ORIG_RAX: 000000000000003b
[   23.818726][    C0] RAX: ffffffffffffffda RBX: 000055e94d0af950 RCX: 00007f4a8259015b
[   23.818727][    C0] RDX: 000055e94cffe220 RSI: 000055e94d05dca0 RDI: 000055e94d0af950
[   23.818728][    C0] RBP: 00007ffd857ca9c0 R08: 000055e94cf8a830 R09: 0000000000000070
[   23.818729][    C0] R10: 0000000000000071 R11: 0000000000000202 R12: 000055e94d0af950


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