======================================
| [  692.635594][    C1] 1 lock held by mirror_gre_brid/10986:
| [  692.635698][    C1]  #0: ffffffffb6377c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:300 (discriminator 2) kernel/rcu/tree.c:2611 (discriminator 2))
| [  692.635851][    C1]
| [  692.635851][    C1] stack backtrace:
[  692.635958][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  692.635960][    C1] Call Trace:
[  692.635962][    C1]  <IRQ>
[  692.635963][    C1]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  692.635968][    C1]  print_usage_bug.part.0.cold (kernel/locking/lockdep.c:4042)
[  692.635971][    C1]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  692.635974][    C1]  mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4056 kernel/locking/lockdep.c:4267)
[  692.635976][    C1]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  692.635978][    C1]  ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  692.635981][    C1]  ? save_trace (kernel/locking/lockdep.c:589)
[  692.635983][    C1]  mark_lock (kernel/locking/lockdep.c:4753)
[  692.635985][    C1]  mark_usage (kernel/locking/lockdep.c:4642)
[  692.635986][    C1]  __lock_acquire (kernel/locking/lockdep.c:5191)
[  692.635988][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  692.635990][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  692.635994][    C1]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  692.635996][    C1]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  692.635998][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  692.636000][    C1]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  692.636001][    C1]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1))
[  692.636003][    C1]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  692.636005][    C1] tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  692.636006][    C1]  tcf_action_rcu_free (net/sched/act_api.c:367 net/sched/act_api.c:378)
[  692.636008][    C1]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[  692.636010][    C1]  rcu_do_batch (kernel/rcu/tree.c:2617)
[  692.636013][    C1]  ? trace_rcu_batch_end (./include/trace/events/rcu.h:714 (discriminator 19))
[  692.636015][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  692.636016][    C1]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  692.636018][    C1]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[  692.636019][    C1]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  692.636021][    C1]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[  692.636022][    C1]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[  692.636024][    C1]  rcu_core (kernel/rcu/tree.c:2869)
[  692.636026][    C1]  handle_softirqs (kernel/softirq.c:622)
[  692.636028][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  692.636031][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  692.636032][    C1]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  692.636034][    C1]  __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735)
[  692.636036][    C1]  irq_exit_rcu (kernel/softirq.c:752)
[  692.636037][    C1]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  692.636039][    C1]  </IRQ>
[  692.636039][    C1]  <TASK>
[  692.636040][    C1]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  692.636042][    C1] RIP: 0010:do_user_addr_fault (./arch/x86/include/asm/jump_label.h:37 ./include/linux/jump_label.h:201 ./include/linux/perf_event.h:1603 arch/x86/mm/fault.c:1281)
[  692.636046][    C1] Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c4 0a 00 00 f6 85 91 00 00 00 02 0f 84 9a 03 00 00 e8 75 b9 45 00 fb 0f 1f 44 00 00 <48> 89 d8 48 89 d9 48 8d 95 88 00 00 00 83 e0 40 41 0f 95 c1 48 89
All code
========
   0:	df 48 89             	fisttps -0x77(%rax)
   3:	fa                   	cli
   4:	48 c1 ea 03          	shr    $0x3,%rdx
   8:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   c:	0f 85 c4 0a 00 00    	jne    0xad6
  12:	f6 85 91 00 00 00 02 	testb  $0x2,0x91(%rbp)
  19:	0f 84 9a 03 00 00    	je     0x3b9
  1f:	e8 75 b9 45 00       	call   0x45b999
  24:	fb                   	sti
  25:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  2a:*	48 89 d8             	mov    %rbx,%rax		<-- trapping instruction
  2d:	48 89 d9             	mov    %rbx,%rcx
  30:	48 8d 95 88 00 00 00 	lea    0x88(%rbp),%rdx
  37:	83 e0 40             	and    $0x40,%eax
  3a:	41 0f 95 c1          	setne  %r9b
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 89 d8             	mov    %rbx,%rax
   3:	48 89 d9             	mov    %rbx,%rcx
   6:	48 8d 95 88 00 00 00 	lea    0x88(%rbp),%rdx
   d:	83 e0 40             	and    $0x40,%eax
  10:	41 0f 95 c1          	setne  %r9b
  14:	48                   	rex.W
  15:	89                   	.byte 0x89
[  692.636048][    C1] RSP: 0000:ffa0000000b6feb0 EFLAGS: 00000282
[  692.636050][    C1] RAX: 00000000000353f3 RBX: 0000000000000007 RCX: ffffffffb2f57ffb
[  692.636052][    C1] RDX: ff11000013e3a340 RSI: ffffffffb5e01bcb RDI: ffffffffb586f6c0
[  692.636053][    C1] RBP: ffa0000000b6ff48 R08: 0000000000000000 R09: 0000000000000000
[  692.636053][    C1] R10: 0000000000000001 R11: 0000000000000001 R12: ff11000013e3a340
[  692.636054][    C1] R13: 000055db56561c88 R14: ff11000010424840 R15: 0000000000000000
[  692.636056][    C1]  ? do_user_addr_fault (arch/x86/mm/fault.c:1279)
[  692.636058][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  692.636060][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  692.636062][    C1]  ? irqentry_enter (./include/linux/irq-entry-common.h:108 ./include/linux/irq-entry-common.h:293 kernel/entry/common.c:113)
[  692.636063][    C1]  exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[  692.636065][    C1]  asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:618)
[  692.636067][    C1] RIP: 0033:0x7fe3d7e9f45f
[  692.636069][    C1] Code: 16 00 49 8d 49 e0 48 89 c8 64 4c 8b 02 48 c1 e8 04 48 81 f9 ff 03 00 00 77 31 41 0f b7 14 40 66 85 d2 74 2d 48 89 f9 83 ea 01 <48> 89 77 08 48 c1 e9 0c 49 33 8c c0 98 00 00 00 48 89 0f 49 89 bc
All code
========
   0:	16                   	(bad)
   1:	00 49 8d             	add    %cl,-0x73(%rcx)
   4:	49 e0 48             	rex.WB loopne 0x4f
   7:	89 c8                	mov    %ecx,%eax
   9:	64 4c 8b 02          	mov    %fs:(%rdx),%r8
   d:	48 c1 e8 04          	shr    $0x4,%rax
  11:	48 81 f9 ff 03 00 00 	cmp    $0x3ff,%rcx
  18:	77 31                	ja     0x4b
  1a:	41 0f b7 14 40       	movzwl (%r8,%rax,2),%edx
  1f:	66 85 d2             	test   %dx,%dx
  22:	74 2d                	je     0x51
  24:	48 89 f9             	mov    %rdi,%rcx
  27:	83 ea 01             	sub    $0x1,%edx
  2a:*	48 89 77 08          	mov    %rsi,0x8(%rdi)		<-- trapping instruction
  2e:	48 c1 e9 0c          	shr    $0xc,%rcx
  32:	49 33 8c c0 98 00 00 	xor    0x98(%r8,%rax,8),%rcx
  39:	00 
  3a:	48 89 0f             	mov    %rcx,(%rdi)
  3d:	49                   	rex.WB
  3e:	89                   	.byte 0x89
  3f:	bc                   	.byte 0xbc

Code starting with the faulting instruction
===========================================
   0:	48 89 77 08          	mov    %rsi,0x8(%rdi)
   4:	48 c1 e9 0c          	shr    $0xc,%rcx
   8:	49 33 8c c0 98 00 00 	xor    0x98(%r8,%rax,8),%rcx
   f:	00 
  10:	48 89 0f             	mov    %rcx,(%rdi)
  13:	49                   	rex.WB
  14:	89                   	.byte 0x89
  15:	bc                   	.byte 0xbc
[  692.636070][    C1] RSP: 002b:00007fff8a5c33c8 EFLAGS: 00010206
[  692.636071][    C1] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 000055db56561c80
[  692.636072][    C1] RDX: 000000000000000a RSI: c535eaf81080c816 RDI: 000055db56561c80
[  692.636073][    C1] RBP: 00007fff8a5c3430 R08: 000055db56445840 R09: 0000000000000030
[  692.636073][    C1] R10: 0000000000000031 R11: 0000000000000246 R12: 000055db56561c80


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