======================================
| [  475.707764][    C3] 1 lock held by tc/6146:
| [  475.707828][    C3]  #0: ffffffff8f977c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:300 (discriminator 2) kernel/rcu/tree.c:2611 (discriminator 2))
| [  475.708024][    C3]
| [  475.708024][    C3] stack backtrace:
[  475.708129][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  475.708131][    C3] Call Trace:
[  475.708133][    C3]  <IRQ>
[  475.708134][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  475.708138][    C3]  print_usage_bug.part.0.cold (kernel/locking/lockdep.c:4042)
[  475.708141][    C3]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  475.708145][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4056 kernel/locking/lockdep.c:4267)
[  475.708146][    C3]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  475.708149][    C3]  ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  475.708150][    C3]  ? save_trace (kernel/locking/lockdep.c:589)
[  475.708152][    C3]  ? __noinstr_text_start (??:?)
[  475.708154][    C3]  mark_lock (kernel/locking/lockdep.c:4753)
[  475.708156][    C3]  mark_usage (kernel/locking/lockdep.c:4642)
[  475.708157][    C3]  __lock_acquire (kernel/locking/lockdep.c:5191)
[  475.708158][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  475.708160][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  475.708164][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  475.708165][    C3]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  475.708167][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  475.708169][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  475.708171][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1))
[  475.708172][    C3]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  475.708174][    C3] tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  475.708175][    C3]  tcf_action_rcu_free (net/sched/act_api.c:367 net/sched/act_api.c:378)
[  475.708177][    C3]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[  475.708179][    C3]  rcu_do_batch (kernel/rcu/tree.c:2617)
[  475.708181][    C3]  ? trace_rcu_batch_end (./include/trace/events/rcu.h:714 (discriminator 19))
[  475.708183][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  475.708185][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  475.708186][    C3]  ? trace_irq_disable.constprop.0 (./include/trace/events/preemptirq.h:36 (discriminator 22))
[  475.708188][    C3]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[  475.708189][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  475.708191][    C3]  rcu_core (kernel/rcu/tree.c:2869)
[  475.708193][    C3]  handle_softirqs (kernel/softirq.c:622)
[  475.708194][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  475.708197][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  475.708199][    C3]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  475.708201][    C3]  __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735)
[  475.708202][    C3]  irq_exit_rcu (kernel/softirq.c:752)
[  475.708204][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  475.708205][    C3]  </IRQ>
[  475.708206][    C3]  <TASK>
[  475.708207][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  475.708208][    C3] RIP: 0010:stack_depot_save_flags (./include/linux/jhash.h:129 (discriminator 3) lib/stackdepot.c:571 (discriminator 3) lib/stackdepot.c:672 (discriminator 3))
[  475.708212][    C3] Code: f8 29 c7 c1 c2 04 44 01 c0 31 fa 44 89 c7 41 89 d0 29 d7 01 c2 41 c1 c0 06 41 31 f8 44 89 c7 44 29 c0 41 01 d0 c1 c7 08 31 f8 <89> c7 29 c2 44 01 c0 c1 c7 10 31 fa 89 d7 41 29 d0 01 c2 c1 cf 0d
All code
========
   0:	f8                   	clc
   1:	29 c7                	sub    %eax,%edi
   3:	c1 c2 04             	rol    $0x4,%edx
   6:	44 01 c0             	add    %r8d,%eax
   9:	31 fa                	xor    %edi,%edx
   b:	44 89 c7             	mov    %r8d,%edi
   e:	41 89 d0             	mov    %edx,%r8d
  11:	29 d7                	sub    %edx,%edi
  13:	01 c2                	add    %eax,%edx
  15:	41 c1 c0 06          	rol    $0x6,%r8d
  19:	41 31 f8             	xor    %edi,%r8d
  1c:	44 89 c7             	mov    %r8d,%edi
  1f:	44 29 c0             	sub    %r8d,%eax
  22:	41 01 d0             	add    %edx,%r8d
  25:	c1 c7 08             	rol    $0x8,%edi
  28:	31 f8                	xor    %edi,%eax
  2a:*	89 c7                	mov    %eax,%edi		<-- trapping instruction
  2c:	29 c2                	sub    %eax,%edx
  2e:	44 01 c0             	add    %r8d,%eax
  31:	c1 c7 10             	rol    $0x10,%edi
  34:	31 fa                	xor    %edi,%edx
  36:	89 d7                	mov    %edx,%edi
  38:	41 29 d0             	sub    %edx,%r8d
  3b:	01 c2                	add    %eax,%edx
  3d:	c1 cf 0d             	ror    $0xd,%edi

Code starting with the faulting instruction
===========================================
   0:	89 c7                	mov    %eax,%edi
   2:	29 c2                	sub    %eax,%edx
   4:	44 01 c0             	add    %r8d,%eax
   7:	c1 c7 10             	rol    $0x10,%edi
   a:	31 fa                	xor    %edi,%edx
   c:	89 d7                	mov    %edx,%edi
   e:	41 29 d0             	sub    %edx,%r8d
  11:	01 c2                	add    %eax,%edx
  13:	c1 cf 0d             	ror    $0xd,%edi
[  475.708214][    C3] RSP: 0018:ffa0000000787bd8 EFLAGS: 00000206
[  475.708216][    C3] RAX: 000000002d313d1b RBX: 0000000000000001 RCX: ffa0000000787c44
[  475.708217][    C3] RDX: 0000000049d31fda RSI: 0000000000000009 RDI: 00000000f5c0539f
[  475.708218][    C3] RBP: 0000000000000006 R08: 00000000e9c8e02d R09: 0000000000000000
[  475.708219][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: ffa0000000787c38
[  475.708220][    C3] R13: 0000000000000006 R14: 0000000000000000 R15: 0000000000000001
[  475.708222][    C3]  ? stack_depot_save_flags (lib/stackdepot.c:667)
[  475.708224][    C3]  set_track_prepare (mm/slub.c:1041)
[  475.708228][    C3]  ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:44 mm/slub.c:4575 mm/slub.c:4899 mm/slub.c:4906)
[  475.708231][    C3]  ? do_getname.isra.0 (fs/namei.c:142 (discriminator 11) fs/namei.c:182 (discriminator 11))
[  475.708233][    C3]  ? do_sys_openat2 (./include/linux/fs.h:2526 ./include/linux/fs.h:2553 fs/open.c:1363)
[  475.708235][    C3]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[  475.708237][    C3]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  475.708238][    C3]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  475.708240][    C3]  __alloc_object (mm/kmemleak.c:701)
[  475.708241][    C3]  __create_object (mm/kmemleak.c:779)
[  475.708243][    C3]  ? kasan_save_track (mm/kasan/common.c:78)
[  475.708246][    C3]  kmem_cache_alloc_noprof (./include/linux/kmemleak.h:44 mm/slub.c:4575 mm/slub.c:4899 mm/slub.c:4906)
[  475.708248][    C3]  do_getname.isra.0 (fs/namei.c:142 (discriminator 11) fs/namei.c:182 (discriminator 11))
[  475.708250][    C3]  do_sys_openat2 (./include/linux/fs.h:2526 ./include/linux/fs.h:2553 fs/open.c:1363)
[  475.708252][    C3]  ? build_open_flags (fs/open.c:1212)
[  475.708254][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  475.708257][    C3]  __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[  475.708258][    C3]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[  475.708260][    C3]  ? __ia32_sys_open (fs/open.c:1374)
[  475.708262][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  475.708264][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  475.708265][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  475.708267][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  475.708268][    C3]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  475.708270][    C3]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  475.708271][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  475.708272][    C3] RIP: 0033:0x7f3665cdd625
[  475.708275][    C3] Code: 48 89 e5 48 89 55 e0 41 83 e2 40 75 28 89 f2 f7 d2 81 e2 00 00 41 00 74 1c 89 f2 bf 9c ff ff ff 48 89 c6 b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 23 5d c3 90 48 8d 4d 10 c7 45 b8 10 00 00 00
All code
========
   0:	48 89 e5             	mov    %rsp,%rbp
   3:	48 89 55 e0          	mov    %rdx,-0x20(%rbp)
   7:	41 83 e2 40          	and    $0x40,%r10d
   b:	75 28                	jne    0x35
   d:	89 f2                	mov    %esi,%edx
   f:	f7 d2                	not    %edx
  11:	81 e2 00 00 41 00    	and    $0x410000,%edx
  17:	74 1c                	je     0x35
  19:	89 f2                	mov    %esi,%edx
  1b:	bf 9c ff ff ff       	mov    $0xffffff9c,%edi
  20:	48 89 c6             	mov    %rax,%rsi
  23:	b8 01 01 00 00       	mov    $0x101,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 23                	ja     0x55
  32:	5d                   	pop    %rbp
  33:	c3                   	ret
  34:	90                   	nop
  35:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
  39:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 23                	ja     0x2b
   8:	5d                   	pop    %rbp
   9:	c3                   	ret
   a:	90                   	nop
   b:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
   f:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)
[  475.708276][    C3] RSP: 002b:00007fff02c619f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[  475.708277][    C3] RAX: ffffffffffffffda RBX: 00007fff02c61c80 RCX: 00007f3665cdd625
[  475.708278][    C3] RDX: 0000000000080000 RSI: 00007fff02c61a70 RDI: 00000000ffffff9c
[  475.708279][    C3] RBP: 00007fff02c619f0 R08: 00007fff02c61c67 R09: 0000000000000000
[  475.708280][    C3] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff02c61a70


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