======================================
| [  191.332231][    C3] 1 lock held by jq/2394:
| [  191.332292][    C3]  #0: ffffffff9fb77c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:300 (discriminator 2) kernel/rcu/tree.c:2611 (discriminator 2))
| [  191.332440][    C3]
| [  191.332440][    C3] stack backtrace:
[  191.332549][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  191.332551][    C3] Call Trace:
[  191.332552][    C3]  <IRQ>
[  191.332554][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  191.332558][    C3]  print_usage_bug.part.0.cold (kernel/locking/lockdep.c:4042)
[  191.332561][    C3]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  191.332564][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4056 kernel/locking/lockdep.c:4267)
[  191.332566][    C3]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  191.332568][    C3]  ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  191.332570][    C3]  ? save_trace (kernel/locking/lockdep.c:589)
[  191.332572][    C3]  mark_lock (kernel/locking/lockdep.c:4753)
[  191.332574][    C3]  mark_usage (kernel/locking/lockdep.c:4642)
[  191.332575][    C3]  __lock_acquire (kernel/locking/lockdep.c:5191)
[  191.332577][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  191.332579][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  191.332582][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  191.332584][    C3]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  191.332586][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  191.332587][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  191.332589][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1))
[  191.332591][    C3]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  191.332592][    C3] tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  191.332594][    C3]  tcf_action_rcu_free (net/sched/act_api.c:367 net/sched/act_api.c:378)
[  191.332596][    C3]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[  191.332597][    C3]  rcu_do_batch (kernel/rcu/tree.c:2617)
[  191.332600][    C3]  ? trace_rcu_batch_end (./include/trace/events/rcu.h:714 (discriminator 19))
[  191.332602][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  191.332604][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  191.332605][    C3]  ? trace_irq_disable.constprop.0 (./include/trace/events/preemptirq.h:36 (discriminator 22))
[  191.332607][    C3]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[  191.332608][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  191.332610][    C3]  rcu_core (kernel/rcu/tree.c:2869)
[  191.332612][    C3]  handle_softirqs (kernel/softirq.c:622)
[  191.332613][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  191.332616][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  191.332617][    C3]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  191.332619][    C3]  __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735)
[  191.332621][    C3]  irq_exit_rcu (kernel/softirq.c:752)
[  191.332622][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  191.332624][    C3]  </IRQ>
[  191.332624][    C3]  <TASK>
[  191.332625][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  191.332627][    C3] RIP: 0010:do_syscall_64 (./include/linux/entry-common.h:144 (discriminator 4) ./include/linux/entry-common.h:178 (discriminator 4) arch/x86/entry/syscall_64.c:89 (discriminator 4))
[  191.332629][    C3] Code: 05 48 7f 00 00 48 39 c3 0f 85 eb 03 00 00 48 8b 7d 08 e8 7b 83 00 00 90 e8 05 39 f5 fd 90 90 e8 8e 38 f5 fd fb 49 8b 4c 24 08 <f6> c1 bf 74 61 f6 c1 20 0f 85 11 03 00 00 f6 c1 0c 0f 85 3a 03 00
All code
========
   0:	05 48 7f 00 00       	add    $0x7f48,%eax
   5:	48 39 c3             	cmp    %rax,%rbx
   8:	0f 85 eb 03 00 00    	jne    0x3f9
   e:	48 8b 7d 08          	mov    0x8(%rbp),%rdi
  12:	e8 7b 83 00 00       	call   0x8392
  17:	90                   	nop
  18:	e8 05 39 f5 fd       	call   0xfffffffffdf53922
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	e8 8e 38 f5 fd       	call   0xfffffffffdf538b2
  24:	fb                   	sti
  25:	49 8b 4c 24 08       	mov    0x8(%r12),%rcx
  2a:*	f6 c1 bf             	test   $0xbf,%cl		<-- trapping instruction
  2d:	74 61                	je     0x90
  2f:	f6 c1 20             	test   $0x20,%cl
  32:	0f 85 11 03 00 00    	jne    0x349
  38:	f6 c1 0c             	test   $0xc,%cl
  3b:	0f                   	.byte 0xf
  3c:	85 3a                	test   %edi,(%rdx)
  3e:	03 00                	add    (%rax),%eax

Code starting with the faulting instruction
===========================================
   0:	f6 c1 bf             	test   $0xbf,%cl
   3:	74 61                	je     0x66
   5:	f6 c1 20             	test   $0x20,%cl
   8:	0f 85 11 03 00 00    	jne    0x31f
   e:	f6 c1 0c             	test   $0xc,%cl
  11:	0f                   	.byte 0xf
  12:	85 3a                	test   %edi,(%rdx)
  14:	03 00                	add    (%rax),%eax
[  191.332631][    C3] RSP: 0018:ffa0000000977f10 EFLAGS: 00000282
[  191.332633][    C3] RAX: 0000000000002389 RBX: ffa0000000977f48 RCX: 0000000000000000
[  191.332634][    C3] RDX: ff1100000a368040 RSI: ffffffff9f601bcb RDI: ffffffff9f06f6c0
[  191.332635][    C3] RBP: ffa0000000977f38 R08: 0000000000000000 R09: 0000000000000000
[  191.332636][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: ff1100000a368040
[  191.332636][    C3] R13: 0000000000000011 R14: 0000000000000000 R15: 0000000000000000
[  191.332639][    C3]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  191.332640][    C3]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  191.332642][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  191.332643][    C3] RIP: 0033:0x7f3dbdde566e
[  191.332646][    C3] Code: 8d 4d d0 48 89 4d c8 eb c7 0f 1f 00 f7 d8 89 05 48 4c 01 00 b8 ff ff ff ff 5d c3 90 f3 0f 1e fa 49 89 ca b8 11 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 f7 d8 89 05
All code
========
   0:	8d 4d d0             	lea    -0x30(%rbp),%ecx
   3:	48 89 4d c8          	mov    %rcx,-0x38(%rbp)
   7:	eb c7                	jmp    0xffffffffffffffd0
   9:	0f 1f 00             	nopl   (%rax)
   c:	f7 d8                	neg    %eax
   e:	89 05 48 4c 01 00    	mov    %eax,0x14c48(%rip)        # 0x14c5c
  14:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
  19:	5d                   	pop    %rbp
  1a:	c3                   	ret
  1b:	90                   	nop
  1c:	f3 0f 1e fa          	endbr64
  20:	49 89 ca             	mov    %rcx,%r10
  23:	b8 11 00 00 00       	mov    $0x11,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 0a                	ja     0x3c
  32:	c3                   	ret
  33:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  3a:	00 00 
  3c:	f7 d8                	neg    %eax
  3e:	89                   	.byte 0x89
  3f:	05                   	.byte 0x5

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 0a                	ja     0x12
   8:	c3                   	ret
   9:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  10:	00 00 
  12:	f7 d8                	neg    %eax
  14:	89                   	.byte 0x89
  15:	05                   	.byte 0x5
[  191.332647][    C3] RSP: 002b:00007ffde84a3378 EFLAGS: 00000202 ORIG_RAX: 0000000000000011
[  191.332648][    C3] RAX: ffffffffffffffda RBX: 00007f3dbddb8270 RCX: 00007f3dbdde566e
[  191.332649][    C3] RDX: 0000000000000310 RSI: 00007ffde84a3380 RDI: 0000000000000005
[  191.332650][    C3] RBP: 00007ffde84a3800 R08: 000000000000c0ff R09: 0000000000000000
[  191.332650][    C3] R10: 0000000000000040 R11: 0000000000000202 R12: 0000000000000003


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