======================================
| [  204.384255][    C3]  #0: ffffffffa2177d20 (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))
| [  204.384464][    C3]  #1: ffffffffa2177c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:300 (discriminator 2) kernel/rcu/tree.c:2611 (discriminator 2))
| [  204.384625][    C3]
| [  204.384625][    C3] stack backtrace:
[  204.384738][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  204.384739][    C3] Call Trace:
[  204.384741][    C3]  <IRQ>
[  204.384742][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  204.384747][    C3]  print_usage_bug.part.0.cold (kernel/locking/lockdep.c:4042)
[  204.384750][    C3]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  204.384753][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4056 kernel/locking/lockdep.c:4267)
[  204.384754][    C3]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  204.384756][    C3]  ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  204.384758][    C3]  ? save_trace (kernel/locking/lockdep.c:589)
[  204.384760][    C3]  ? calculate_order (./include/asm-generic/getorder.h:41 mm/slub.c:7520)
[  204.384764][    C3]  mark_lock (kernel/locking/lockdep.c:4753)
[  204.384765][    C3]  mark_usage (kernel/locking/lockdep.c:4642)
[  204.384767][    C3]  __lock_acquire (kernel/locking/lockdep.c:5191)
[  204.384768][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  204.384770][    C3]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[  204.384773][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  204.384774][    C3]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  204.384776][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  204.384777][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  204.384779][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1))
[  204.384781][    C3]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  204.384782][    C3] tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  204.384784][    C3]  tcf_action_rcu_free (net/sched/act_api.c:367 net/sched/act_api.c:378)
[  204.384785][    C3]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[  204.384787][    C3]  rcu_do_batch (kernel/rcu/tree.c:2617)
[  204.384790][    C3]  ? trace_rcu_batch_end (./include/trace/events/rcu.h:714 (discriminator 19))
[  204.384792][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  204.384793][    C3]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[  204.384795][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  204.384797][    C3]  rcu_core (kernel/rcu/tree.c:2869)
[  204.384798][    C3]  handle_softirqs (kernel/softirq.c:622)
[  204.384800][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  204.384803][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  204.384804][    C3]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  204.384806][    C3]  __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735)
[  204.384808][    C3]  irq_exit_rcu (kernel/softirq.c:752)
[  204.384809][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  204.384811][    C3]  </IRQ>
[  204.384811][    C3]  <TASK>
[  204.384812][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  204.384814][    C3] RIP: 0010:lock_acquire.part.0 (./arch/x86/include/asm/irqflags.h:158 (discriminator 1) kernel/locking/lockdep.c:5871 (discriminator 1))
[  204.384815][    C3] 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
[  204.384817][    C3] RSP: 0018:ffa0000000617918 EFLAGS: 00000206
[  204.384819][    C3] RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0ac0d5affe09d4ff
[  204.384821][    C3] RDX: 0000000000000001 RSI: ffffffffa1bebde8 RDI: ffffffffa166f6c0
[  204.384822][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ff1100001066ae30
[  204.384822][    C3] R10: 0000000000000200 R11: 0000000000000001 R12: ffffffffa2177d20
[  204.384823][    C3] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
[  204.384826][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  204.384827][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  204.384829][    C3]  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))
[  204.384830][    C3]  ? 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))
[  204.384831][    C3]  ? arch_stack_walk (./arch/x86/include/asm/unwind.h:64 arch/x86/kernel/stacktrace.c:24)
[  204.384835][    C3]  ? stack_access_ok (./arch/x86/include/asm/stacktrace.h:55)
[  204.384837][    C3]  ? kasan_save_stack (mm/kasan/common.c:58)
[  204.384840][    C3]  ? kasan_save_stack (mm/kasan/common.c:57)
[  204.384841][    C3]  ? kasan_save_track (mm/kasan/common.c:78)
[  204.384843][    C3]  ? kmem_cache_alloc_noprof (./include/linux/kasan.h:253 mm/slub.c:4570 mm/slub.c:4899 mm/slub.c:4906)
[  204.384845][    C3]  ? __alloc_object (mm/kmemleak.c:483 (discriminator 1) mm/kmemleak.c:665 (discriminator 1))
[  204.384847][    C3]  ? __create_object (mm/kmemleak.c:779)
[  204.384848][    C3]  ? get_stack_info_noinstr (arch/x86/kernel/dumpstack_64.c:173)
[  204.384849][    C3]  ? alloc_empty_file (fs/file_table.c:262 (discriminator 11))
[  204.384852][    C3]  __unwind_start (arch/x86/kernel/unwind_orc.c:787)
[  204.384853][    C3]  ? write_profile (profile.c:?)
[  204.384856][    C3]  arch_stack_walk (./arch/x86/include/asm/unwind.h:64 arch/x86/kernel/stacktrace.c:24)
[  204.384858][    C3]  ? arch_stack_walk (./arch/x86/include/asm/unwind.h:64 arch/x86/kernel/stacktrace.c:24)
[  204.384860][    C3]  stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  204.384862][    C3]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  204.384865][    C3]  set_track_prepare (mm/slub.c:1038)
[  204.384868][    C3]  __alloc_object (mm/kmemleak.c:701)
[  204.384869][    C3]  __create_object (mm/kmemleak.c:779)
[  204.384870][    C3]  ? kasan_save_track (mm/kasan/common.c:78)
[  204.384872][    C3]  kmem_cache_alloc_noprof (./include/linux/kmemleak.h:44 mm/slub.c:4575 mm/slub.c:4899 mm/slub.c:4906)
[  204.384875][    C3]  alloc_empty_file (fs/file_table.c:262 (discriminator 11))
[  204.384876][    C3]  alloc_file_pseudo (fs/file_table.c:396 (discriminator 8) fs/file_table.c:425 (discriminator 8))
[  204.384878][    C3]  ? alloc_empty_file (./include/linux/percpu_counter.h:71)
[  204.384880][    C3]  ? 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)
[  204.384881][    C3]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[  204.384883][    C3]  sock_alloc_file (net/socket.c:543 (discriminator 1))
[  204.384886][    C3]  __sys_socket (net/socket.c:573 net/socket.c:1815)
[  204.384888][    C3]  ? update_socket_protocol+0x10/0x10
[  204.384890][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  204.384892][    C3]  __x64_sys_socket (net/socket.c:1820 net/socket.c:1818 net/socket.c:1818)
[  204.384893][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  204.384895][    C3]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  204.384896][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  204.384897][    C3]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  204.384900][    C3]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  204.384902][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  204.384903][    C3] RIP: 0033:0x7f518ec8c89b
[  204.384905][    C3] Code: 8b 55 f8 64 48 2b 14 25 28 00 00 00 75 02 c9 c3 e8 ea ad 00 00 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2d 75 0f 00 f7 d8 64 89 01 48
All code
========
   0:	8b 55 f8             	mov    -0x8(%rbp),%edx
   3:	64 48 2b 14 25 28 00 	sub    %fs:0x28,%rdx
   a:	00 00 
   c:	75 02                	jne    0x10
   e:	c9                   	leave
   f:	c3                   	ret
  10:	e8 ea ad 00 00       	call   0xadff
  15:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1c:	00 00 00 
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 29 00 00 00       	mov    $0x29,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 2d 75 0f 00 	mov    0xf752d(%rip),%rcx        # 0xf7567
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 2d 75 0f 00 	mov    0xf752d(%rip),%rcx        # 0xf753d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[  204.384906][    C3] RSP: 002b:00007fff0d31c778 EFLAGS: 00000206 ORIG_RAX: 0000000000000029
[  204.384908][    C3] RAX: ffffffffffffffda RBX: 000000000049f620 RCX: 00007f518ec8c89b
[  204.384909][    C3] RDX: 0000000000000000 RSI: 0000000000080003 RDI: 0000000000000010
[  204.384909][    C3] RBP: 0000000000000005 R08: 00007f518ed84680 R09: 00007f518ed85fa0
[  204.384910][    C3] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000


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