======================================
| [   61.417798][    C1]  #1: ffffffffbcd77d20 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame (./include/linux/rcupdate.h:300 (discriminator 2) ./include/linux/rcupdate.h:838 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) arch/x86/kernel/unwind_orc.c:495 (discriminator 2))
| [   61.417979][    C1]  #2: ffffffffbcd77c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:300 (discriminator 2) kernel/rcu/tree.c:2611 (discriminator 2))
| [   61.418160][    C1]
| [   61.418160][    C1] stack backtrace:
[   61.418300][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   61.418302][    C1] Call Trace:
[   61.418303][    C1]  <IRQ>
[   61.418305][    C1]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   61.418310][    C1]  print_usage_bug.part.0.cold (kernel/locking/lockdep.c:4042)
[   61.418313][    C1]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   61.418316][    C1]  mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4056 kernel/locking/lockdep.c:4267)
[   61.418317][    C1]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[   61.418320][    C1]  ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[   61.418322][    C1]  ? save_trace (kernel/locking/lockdep.c:589)
[   61.418323][    C1]  ? kernel_pgtable_work_func (mm/pgtable-generic.c:436)
[   61.418325][    C1]  mark_lock (kernel/locking/lockdep.c:4753)
[   61.418327][    C1]  mark_usage (kernel/locking/lockdep.c:4642)
[   61.418329][    C1]  __lock_acquire (kernel/locking/lockdep.c:5191)
[   61.418330][    C1]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   61.418331][    C1]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[   61.418334][    C1]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   61.418336][    C1]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[   61.418338][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   61.418340][    C1]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   61.418341][    C1]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1))
[   61.418343][    C1]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[   61.418345][    C1] tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[   61.418346][    C1]  tcf_action_rcu_free (net/sched/act_api.c:367 net/sched/act_api.c:378)
[   61.418348][    C1]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[   61.418350][    C1]  rcu_do_batch (kernel/rcu/tree.c:2617)
[   61.418352][    C1]  ? trace_rcu_batch_end (./include/trace/events/rcu.h:714 (discriminator 19))
[   61.418355][    C1]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   61.418356][    C1]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[   61.418358][    C1]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   61.418360][    C1]  rcu_core (kernel/rcu/tree.c:2869)
[   61.418362][    C1]  handle_softirqs (kernel/softirq.c:622)
[   61.418363][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   61.418366][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   61.418368][    C1]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[   61.418370][    C1]  __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735)
[   61.418371][    C1]  irq_exit_rcu (kernel/softirq.c:752)
[   61.418373][    C1]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[   61.418375][    C1]  </IRQ>
[   61.418375][    C1]  <TASK>
[   61.418376][    C1]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[   61.418378][    C1] RIP: 0010:lock_acquire.part.0 (./arch/x86/include/asm/irqflags.h:158 (discriminator 1) kernel/locking/lockdep.c:5871 (discriminator 1))
[   61.418380][    C1] Code: ff 65 0f c1 05 37 d9 33 04 83 f8 01 4c 8b 14 24 0f 85 30 01 00 00 9c 58 f6 c4 02 0f 85 4d 01 00 00 4d 85 d2 0f 85 16 01 00 00 <48> 8b 44 24 30 65 48 2b 05 a9 92 33 04 0f 85 43 01 00 00 48 83 c4
All code
========
   0:	ff 65 0f             	jmp    *0xf(%rbp)
   3:	c1 05 37 d9 33 04 83 	roll   $0x83,0x433d937(%rip)        # 0x433d941
   a:	f8                   	clc
   b:	01 4c 8b 14          	add    %ecx,0x14(%rbx,%rcx,4)
   f:	24 0f                	and    $0xf,%al
  11:	85 30                	test   %esi,(%rax)
  13:	01 00                	add    %eax,(%rax)
  15:	00 9c 58 f6 c4 02 0f 	add    %bl,0xf02c4f6(%rax,%rbx,2)
  1c:	85 4d 01             	test   %ecx,0x1(%rbp)
  1f:	00 00                	add    %al,(%rax)
  21:	4d 85 d2             	test   %r10,%r10
  24:	0f 85 16 01 00 00    	jne    0x140
  2a:*	48 8b 44 24 30       	mov    0x30(%rsp),%rax		<-- trapping instruction
  2f:	65 48 2b 05 a9 92 33 	sub    %gs:0x43392a9(%rip),%rax        # 0x43392e0
  36:	04 
  37:	0f 85 43 01 00 00    	jne    0x180
  3d:	48                   	rex.W
  3e:	83                   	.byte 0x83
  3f:	c4                   	.byte 0xc4

Code starting with the faulting instruction
===========================================
   0:	48 8b 44 24 30       	mov    0x30(%rsp),%rax
   5:	65 48 2b 05 a9 92 33 	sub    %gs:0x43392a9(%rip),%rax        # 0x43392b6
   c:	04 
   d:	0f 85 43 01 00 00    	jne    0x156
  13:	48                   	rex.W
  14:	83                   	.byte 0x83
  15:	c4                   	.byte 0xc4
[   61.418382][    C1] RSP: 0018:ffa00000008e7498 EFLAGS: 00000206
[   61.418384][    C1] RAX: 0000000000000046 RBX: 0000000000000000 RCX: b3920c865c501c38
[   61.418385][    C1] RDX: 0000000000000001 RSI: ffffffffbc7ebde8 RDI: ffffffffbc26f6c0
[   61.418386][    C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ff1100000afe8b58
[   61.418387][    C1] R10: 0000000000000200 R11: 0000000000000001 R12: ffffffffbcd77d20
[   61.418388][    C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[   61.418391][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   61.418392][    C1]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   61.418394][    C1]  unwind_next_frame (./include/linux/rcupdate.h:300 (discriminator 2) ./include/linux/rcupdate.h:838 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) arch/x86/kernel/unwind_orc.c:495 (discriminator 2))
[   61.418396][    C1]  ? unwind_next_frame (./include/linux/rcupdate.h:300 (discriminator 2) ./include/linux/rcupdate.h:838 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) arch/x86/kernel/unwind_orc.c:495 (discriminator 2))
[   61.418397][    C1]  ? x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   61.418399][    C1]  ? stack_access_ok (./arch/x86/include/asm/stacktrace.h:55)
[   61.418401][    C1]  ? __unwind_start (arch/x86/kernel/unwind_orc.c:787)
[   61.418403][    C1]  ? write_profile (profile.c:?)
[   61.418405][    C1]  arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   61.418408][    C1]  ? x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   61.418410][    C1]  stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   61.418412][    C1]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   61.418414][    C1]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   61.418416][    C1]  ? __put_anon_vma (mm/rmap.c:137 mm/rmap.c:2917)
[   61.418418][    C1]  kasan_save_stack (mm/kasan/common.c:57)
[   61.418421][    C1]  ? kasan_save_stack (mm/kasan/common.c:57)
[   61.418423][    C1]  ? kasan_record_aux_stack (mm/kasan/generic.c:556)
[   61.418424][    C1]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   61.418426][    C1]  ? __put_anon_vma (mm/rmap.c:137 mm/rmap.c:2917)
[   61.418427][    C1]  ? unlink_anon_vmas (mm/internal.h:216 mm/rmap.c:536)
[   61.418429][    C1]  ? free_pgtables (mm/memory.c:414)
[   61.418431][    C1]  ? exit_mmap (mm/mmap.c:1312)
[   61.418432][    C1]  ? mmput (kernel/fork.c:1178 kernel/fork.c:1201)
[   61.418434][    C1]  ? exit_mm (kernel/exit.c:582)
[   61.418436][    C1]  ? do_exit (kernel/exit.c:964)
[   61.418438][    C1]  ? do_group_exit (kernel/exit.c:1119)
[   61.418439][    C1]  ? __x64_sys_exit_group (kernel/exit.c:1130 kernel/exit.c:1128 kernel/exit.c:1128)
[   61.418440][    C1]  ? x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   61.418445][    C1]  kasan_record_aux_stack (mm/kasan/generic.c:556)
[   61.418447][    C1]  ? flush_cpu_sheaves (mm/slub.c:3958)
[   61.418450][    C1]  __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   61.418451][    C1]  __put_anon_vma (mm/rmap.c:137 mm/rmap.c:2917)
[   61.418453][    C1]  unlink_anon_vmas (mm/internal.h:216 mm/rmap.c:536)
[   61.418456][    C1]  free_pgtables (mm/memory.c:414)
[   61.418458][    C1]  ? free_pgd_range (mm/memory.c:351)
[   61.418460][    C1]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   61.418462][    C1]  ? rwsem_down_write_slowpath (./include/linux/list.h:159)
[   61.418464][    C1]  exit_mmap (mm/mmap.c:1312)
[   61.418466][    C1]  ? vm_brk_flags (./include/linux/seqlock.h:453)
[   61.418468][    C1]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   61.418469][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   61.418471][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   61.418474][    C1]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1007)
[   61.418478][    C1]  mmput (kernel/fork.c:1178 kernel/fork.c:1201)
[   61.418479][    C1]  exit_mm (kernel/exit.c:582)
[   61.418481][    C1]  ? unwind_deferred_task_exit (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/unwind/deferred.c:56 kernel/unwind/deferred.c:196)
[   61.418483][    C1]  do_exit (kernel/exit.c:964)
[   61.418485][    C1]  ? exit_notify (kernel/exit.c:748)
[   61.418487][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   61.418488][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   61.418490][    C1]  do_group_exit (kernel/exit.c:1119)
[   61.418492][    C1]  __x64_sys_exit_group (kernel/exit.c:1130 kernel/exit.c:1128 kernel/exit.c:1128)
[   61.418493][    C1]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   61.418495][    C1]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   61.418496][    C1]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   61.418499][    C1]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   61.418501][    C1]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   61.418502][    C1] RIP: 0033:0x7f267454e2b8
[   61.418505][    C1] Code: Unable to access opcode bytes at 0x7f267454e28e.

Code starting with the faulting instruction
===========================================
[   61.418505][    C1] RSP: 002b:00007ffd47a39818 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   61.418507][    C1] RAX: ffffffffffffffda RBX: 00007f267467ff88 RCX: 00007f267454e2b8
[   61.418509][    C1] RDX: 00007f267448be88 RSI: ffffffffffffffb0 RDI: 0000000000000000
[   61.418510][    C1] RBP: 00007ffd47a39870 R08: 0000000000000000 R09: 0000000000000030
[   61.418511][    C1] R10: 00007ffd47a396b0 R11: 0000000000000246 R12: 0000000000000001


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