======================================
| [ 221.163158][ T2183] #0: ffffffffa65b8890 (pernet_ops_rwsem){++++}-{3:3}, at: rtnl_link_unregister (net/core/rtnetlink.c:678 net/core/rtnetlink.c:701) 
| [ 221.163433][ T2183] #1: ffffffffa65d3b88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_link_unregister (./include/linux/instrumented.h:68 ./include/linux/atomic/atomic-instrumented.h:32 net/core/rtnetlink.c:684 net/core/rtnetlink.c:701) 
| [  221.163673][ T2183]
| [  221.163673][ T2183] stack backtrace:
[  221.164041][ T2183] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  221.164362][ T2183] Call Trace:
[  221.164472][ T2183]  <TASK>
[ 221.164543][ T2183] dump_stack_lvl (lib/dump_stack.c:123) 
[ 221.164687][ T2183] print_circular_bug (kernel/locking/lockdep.c:2077) 
[ 221.164823][ T2183] check_noncircular (kernel/locking/lockdep.c:2206) 
[ 221.164956][ T2183] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2182) 
[ 221.165090][ T2183] ? __kernel_text_address (kernel/extable.c:79) 
[ 221.165231][ T2183] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 221.165371][ T2183] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 221.165539][ T2183] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 221.165677][ T2183] ? alloc_chain_hlocks (kernel/locking/lockdep.c:3528) 
[ 221.165815][ T2183] check_prev_add (kernel/locking/lockdep.c:3162) 
[ 221.165950][ T2183] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 221.166085][ T2183] validate_chain (kernel/locking/lockdep.c:3281 kernel/locking/lockdep.c:3904) 
[ 221.166223][ T2183] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 221.166358][ T2183] ? mark_lock (kernel/locking/lockdep.c:186 kernel/locking/lockdep.c:4731) 
[ 221.166496][ T2183] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 221.166631][ T2183] __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 221.166771][ T2183] lock_sync (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5876) 
[ 221.166874][ T2183] ? __synchronize_srcu (kernel/rcu/srcutree.c:1383) 
[ 221.167015][ T2183] __synchronize_srcu (kernel/rcu/srcutree.c:1388) 
[ 221.167149][ T2183] ? __pfx___synchronize_srcu (kernel/rcu/srcutree.c:1383) 
[ 221.167286][ T2183] ? 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) 
[ 221.167423][ T2183] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 221.167527][ T2183] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:94 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) 
[ 221.167664][ T2183] ? ktime_get_mono_fast_ns (kernel/time/timekeeping.c:195 kernel/time/timekeeping.c:395 kernel/time/timekeeping.c:449 kernel/time/timekeeping.c:489) 
[ 221.167802][ T2183] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 221.167972][ T2183] __rtnl_link_unregister (net/core/rtnetlink.c:664) 
[ 221.168108][ T2183] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 221.168224][ T2183] ? __pfx___rtnl_link_unregister (net/core/rtnetlink.c:659) 
[ 221.168413][ T2183] ? mark_held_locks (kernel/locking/lockdep.c:4321) 
[ 221.168552][ T2183] rtnl_link_unregister (net/core/rtnetlink.c:152 net/core/rtnetlink.c:703) 
[ 221.168688][ T2183] ? __pfx_rtnl_link_unregister (net/core/rtnetlink.c:698) 
[ 221.168826][ T2183] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
[ 221.168966][ T2183] nsim_module_exit (drivers/net/netdevsim/netdev.c:99) netdevsim
[ 221.169114][ T2183] __do_sys_delete_module (kernel/module/main.c:757) 
[ 221.169251][ T2183] ? __pfx___do_sys_delete_module (kernel/module/main.c:702) 
[ 221.169422][ T2183] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) 
[ 221.169601][ T2183] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) 
[ 221.169776][ T2183] ? trace_rcu_segcb_stats (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:570 ./include/linux/cpumask.h:1117 ./include/trace/events/rcu.h:537) 
[ 221.169915][ T2183] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) 
[ 221.170086][ T2183] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 221.170261][ T2183] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 221.170389][ T2183] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  221.170545][ T2183] RIP: 0033:0x7fbca82c45ab
[ 221.170678][ T2183] Code: 73 01 c3 48 8b 0d 55 98 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 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 25 98 1b 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 55 98 1b 00 	mov    0x1b9855(%rip),%rcx        # 0x1b985f
   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 b0 00 00 00       	mov    $0xb0,%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 25 98 1b 00 	mov    0x1b9825(%rip),%rcx        # 0x1b985f
  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 25 98 1b 00 	mov    0x1b9825(%rip),%rcx        # 0x1b9835
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[  221.171123][ T2183] RSP: 002b:00007ffc3662e058 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[  221.171312][ T2183] RAX: ffffffffffffffda RBX: 000055912b4a6980 RCX: 00007fbca82c45ab
[  221.171500][ T2183] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 000055912b4a69e8
[  221.171687][ T2183] RBP: 000055912b4a6980 R08: 0000000000000000 R09: 0000000000000000
[  221.171871][ T2183] R10: 00007fbca8423ac0 R11: 0000000000000206 R12: 000055912b4a69e8


Finger prints:
print_circular_bug:check_noncircular:check_prev_add:validate_chain:__lock_acquire