======================================
| [ 33.951037][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
| [   33.951247][    C3]
| [   33.951334][    C3]
| [   33.951334][    C3] stack backtrace:
[   33.951899][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   33.952279][    C3] Call Trace:
[   33.952413][    C3]  <IRQ>
[ 33.952502][ C3] dump_stack_lvl (lib/dump_stack.c:117) 
[ 33.952677][ C3] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 33.952886][ C3] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 33.953158][ C3] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 33.953368][ C3] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 33.953544][ C3] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 33.953719][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 33.953991][ C3] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 33.954163][ C3] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 33.954335][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.954509][ C3] ? save_trace (kernel/locking/lockdep.c:586) 
[ 33.954781][ C3] mark_lock (kernel/locking/lockdep.c:4678) 
[ 33.954910][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.955082][ C3] mark_usage (kernel/locking/lockdep.c:4567) 
[ 33.955215][ C3] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 33.955387][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 33.955660][ C3] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 33.955829][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 33.955999][ C3] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 33.956171][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 33.956342][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 33.956513][ C3] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 33.956685][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 33.956856][ C3] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 33.957228][ C3] _raw_write_lock (./include/linux/rwlock_api_smp.h:210 kernel/locking/spinlock.c:300) 
[ 33.957401][ C3] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 33.957571][ C3] addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 33.957742][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 33.957913][ C3] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 33.958182][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 33.958351][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 33.958526][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 33.958699][ C3] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 33.958969][ C3] call_timer_fn (kernel/time/timer.c:1793) 
[ 33.959139][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 33.959308][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 33.959497][ C3] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) 
[ 33.959766][ C3] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 33.959935][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 33.960112][ C3] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) 
[ 33.960282][ C3] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 33.960552][ C3] ? __pfx___run_timers (kernel/time/timer.c:2389) 
[ 33.960722][ C3] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:115 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 33.960893][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 33.961067][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 33.961237][ C3] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 33.961407][ C3] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 33.961577][ C3] __do_softirq (kernel/softirq.c:554) 
[ 33.961752][ C3] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 33.961881][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   33.962152][    C3]  </IRQ>
[   33.962245][    C3]  <TASK>
[ 33.962333][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 33.962545][ C3] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 33.962767][ C3] Code: 10 e8 81 21 79 fd 48 89 ef e8 b9 91 79 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d f5 7b 2d 59 <74> 0e 5b 5d c3 cc cc cc cc e8 0f f0 9c fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	81 21 79 fd 48 89    	andl   $0x8948fd79,(%rcx)
   8:	ef                   	out    %eax,(%dx)
   9:	e8 b9 91 79 fd       	call   0xfffffffffd7991c7
   e:	81 e3 00 02 00 00    	and    $0x200,%ebx
  14:	75 1d                	jne    0x33
  16:	9c                   	pushf
  17:	58                   	pop    %rax
  18:	f6 c4 02             	test   $0x2,%ah
  1b:	75 29                	jne    0x46
  1d:	48 85 db             	test   %rbx,%rbx
  20:	74 01                	je     0x23
  22:	fb                   	sti
  23:	65 ff 0d f5 7b 2d 59 	decl   %gs:0x592d7bf5(%rip)        # 0x592d7c1f
  2a:*	74 0e                	je     0x3a		<-- trapping instruction
  2c:	5b                   	pop    %rbx
  2d:	5d                   	pop    %rbp
  2e:	c3                   	ret
  2f:	cc                   	int3
  30:	cc                   	int3
  31:	cc                   	int3
  32:	cc                   	int3
  33:	e8 0f f0 9c fd       	call   0xfffffffffd9cf047
  38:	eb dc                	jmp    0x16
  3a:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	74 0e                	je     0x10
   2:	5b                   	pop    %rbx
   3:	5d                   	pop    %rbp
   4:	c3                   	ret
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	cc                   	int3
   9:	e8 0f f0 9c fd       	call   0xfffffffffd9cf01d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[   33.963477][    C3] RSP: 0018:ffffc90000fbf750 EFLAGS: 00000282
[   33.963801][    C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff5403e3d
[   33.964058][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa6d64de1
[   33.964312][    C3] RBP: ffff88800104f440 R08: 0000000000000001 R09: fffffbfff54032a5
[   33.964673][    C3] R10: ffffffffaa01952f R11: 0000000000000008 R12: ffff88800104f440
[   33.964929][    C3] R13: ffffea00000d2e00 R14: ffff88800104de40 R15: ffff8880034b9cc8
[ 33.965186][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 33.965499][ C3] get_partial_node.part.0 (mm/slub.c:2623) 
[ 33.965675][ C3] ___slab_alloc (mm/slub.c:2583 mm/slub.c:2701 mm/slub.c:3505) 
[ 33.965845][ C3] ? kmem_cache_alloc (./include/linux/sched/mm.h:315 mm/slub.c:3746 mm/slub.c:3827 mm/slub.c:3852) 
[ 33.966015][ C3] ? __alloc_object (mm/kmemleak.c:466 mm/kmemleak.c:645) 
[ 33.966194][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 33.966366][ C3] ? __alloc_object (mm/kmemleak.c:466 mm/kmemleak.c:645) 
[ 33.966539][ C3] ? kmem_cache_alloc (mm/slub.c:3610 mm/slub.c:3663 mm/slub.c:3835 mm/slub.c:3852) 
[ 33.966710][ C3] kmem_cache_alloc (mm/slub.c:3610 mm/slub.c:3663 mm/slub.c:3835 mm/slub.c:3852) 
[ 33.966896][ C3] __alloc_object (mm/kmemleak.c:466 mm/kmemleak.c:645) 
[ 33.967165][ C3] __create_object (mm/kmemleak.c:750) 
[ 33.967337][ C3] __kmalloc_node_track_caller (./include/linux/kmemleak.h:42 mm/slub.c:3802 mm/slub.c:3845 mm/slub.c:3965 mm/slub.c:3986) 
[ 33.967550][ C3] ? kobject_set_name_vargs (lib/kobject.c:274) 
[ 33.967723][ C3] kstrdup (mm/util.c:62) 
[ 33.967953][ C3] kobject_set_name_vargs (lib/kobject.c:274) 
[ 33.968124][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 33.968252][ C3] dev_set_name (drivers/base/core.c:3503) 
[ 33.968382][ C3] ? __pfx_dev_set_name (drivers/base/core.c:3503) 
[ 33.968553][ C3] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 33.968825][ C3] netdev_register_kobject (net/core/net-sysfs.c:2127) 
[ 33.968996][ C3] register_netdevice (net/core/dev.c:10347) 
[ 33.969172][ C3] ? __pfx_register_netdevice (net/core/dev.c:10241) 
[ 33.969344][ C3] register_netdev (net/core/dev.c:10477) 
[ 33.969618][ C3] sit_init_net (net/ipv6/sit.c:1873) 
[ 33.969790][ C3] ops_init (net/core/net_namespace.c:136) 
[ 33.969922][ C3] setup_net (net/core/net_namespace.c:340) 
[ 33.970051][ C3] ? __pfx_setup_net (net/core/net_namespace.c:318) 
[ 33.970224][ C3] ? __pfx_down_read_killable (kernel/locking/rwsem.c:1547) 
[ 33.970494][ C3] copy_net_ns (net/core/net_namespace.c:507) 
[ 33.970666][ C3] create_new_namespaces (kernel/nsproxy.c:110) 
[ 33.970851][ C3] unshare_nsproxy_namespaces (kernel/nsproxy.c:228 (discriminator 4)) 
[ 33.971021][ C3] ksys_unshare (kernel/fork.c:3322) 
[ 33.971290][ C3] ? __pfx_ksys_unshare (kernel/fork.c:3273) 
[ 33.971460][ C3] ? __x64_sys_openat (fs/open.c:1432) 
[ 33.971629][ C3] ? __pfx___x64_sys_openat (fs/open.c:1432) 
[ 33.971798][ C3] __x64_sys_unshare (kernel/fork.c:3391) 
[ 33.972069][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.972246][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[   33.972459][    C3] RIP: 0033:0x7f9272b3890b
[ 33.972633][ C3] Code: 73 01 c3 48 8b 0d f5 94 1b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c5 94 1b 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d f5 94 1b 00 	mov    0x1b94f5(%rip),%rcx        # 0x1b94ff
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%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 c5 94 1b 00 	mov    0x1b94c5(%rip),%rcx        # 0x1b94ff
  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 c5 94 1b 00 	mov    0x1b94c5(%rip),%rcx        # 0x1b94d5
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   33.973347][    C3] RSP: 002b:00007fff277d36c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   33.973715][    C3] RAX: ffffffffffffffda RBX: 000000000046d7b0 RCX: 00007f9272b3890b
[   33.973972][    C3] RDX: 0000000000000000 RSI: 00000000004711d5 RDI: 0000000040000000
[   33.974224][    C3] RBP: 0000000000000007 R08: 0000000000000000 R09: 00007fff277d3560
[   33.974477][    C3] R10: 00007f9272b0df18 R11: 0000000000000202 R12: 0000000000000000


Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage