======================================
| [   22.464262][  T342] ------------[ cut here ]------------
| [   22.464470][  T342] DEBUG_LOCKS_WARN_ON(1)
| [   22.464495][  T342] WARNING: CPU: 3 PID: 342 at kernel/locking/lockdep.c:4976 lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7))
| [   22.465060][  T342] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel bridge stp llc 8021q sch_ingress vrf veth
[   22.465838][  T342] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.466098][  T342] RIP: 0010:lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7))
[   22.466375][  T342] Code: ff 4c 89 e6 48 c7 c7 28 3d fd b6 e8 ee c9 01 00 e9 3d ff ff ff 90 48 c7 c6 ee ff f6 b6 48 c7 c7 3b fc f6 b6 e8 c5 89 e9 ff 90 <0f> 0b 90 90 e9 47 ff ff ff 90 48 c7 c6 2a 01 f7 b6 48 c7 c7 3b fc
All code
========
   0:	ff 4c 89 e6          	decl   -0x1a(%rcx,%rcx,4)
   4:	48 c7 c7 28 3d fd b6 	mov    $0xffffffffb6fd3d28,%rdi
   b:	e8 ee c9 01 00       	call   0x1c9fe
  10:	e9 3d ff ff ff       	jmp    0xffffffffffffff52
  15:	90                   	nop
  16:	48 c7 c6 ee ff f6 b6 	mov    $0xffffffffb6f6ffee,%rsi
  1d:	48 c7 c7 3b fc f6 b6 	mov    $0xffffffffb6f6fc3b,%rdi
  24:	e8 c5 89 e9 ff       	call   0xffffffffffe989ee
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	e9 47 ff ff ff       	jmp    0xffffffffffffff7a
  33:	90                   	nop
  34:	48 c7 c6 2a 01 f7 b6 	mov    $0xffffffffb6f7012a,%rsi
  3b:	48                   	rex.W
  3c:	c7                   	.byte 0xc7
  3d:	c7                   	(bad)
  3e:	3b fc                	cmp    %esp,%edi

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	90                   	nop
   4:	e9 47 ff ff ff       	jmp    0xffffffffffffff50
   9:	90                   	nop
   a:	48 c7 c6 2a 01 f7 b6 	mov    $0xffffffffb6f7012a,%rsi
  11:	48                   	rex.W
  12:	c7                   	.byte 0xc7
  13:	c7                   	(bad)
  14:	3b fc                	cmp    %esp,%edi
[   22.467077][  T342] RSP: 0018:ffffc900006c7018 EFLAGS: 00010282
[   22.467341][  T342] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   22.467644][  T342] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[   22.467945][  T342] RBP: ffffe8ffffc04eb0 R08: 0000000000000000 R09: fffffbfff6e7e10c
[   22.468255][  T342] R10: 0000000000000003 R11: 0000000000000004 R12: ffff888009422e60
[   22.468552][  T342] R13: 0000000000000000 R14: ffffe8ffffc04c98 R15: ffffe8ffffc04c40
[   22.468851][  T342] FS:  00007f44c31a2800(0000) GS:ffff88807db72000(0000) knlGS:0000000000000000
[   22.469206][  T342] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.469458][  T342] CR2: 00007f903d4c15c0 CR3: 000000000eccb006 CR4: 0000000000772ef0
[   22.469754][  T342] PKRU: 55555554
[   22.469929][  T342] Call Trace:
[   22.470085][  T342]  <TASK>
[   22.470208][  T342]  gro_cells_init (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-atomic.h:28 net/core/gro_cells.c:93 net/core/gro_cells.c:78)
[   22.470416][  T342] vxlan_init (drivers/net/vxlan/vxlan_core.c:2899) vxlan
[   22.470622][  T342]  ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:69 mm/kasan/common.c:78)
[   22.470838][  T342]  register_netdevice (net/core/dev.c:11309)
[   22.471037][  T342]  ? vxlan_vni_in_use (drivers/net/vxlan/vxlan_core.c:3680) vxlan
[   22.471263][  T342]  ? unregister_netdevice_queue (net/core/dev.c:11272)
[   22.471526][  T342]  ? vxlan_config_validate (drivers/net/vxlan/vxlan_core.c:3848) vxlan
[   22.471787][  T342]  ? vxlan_config_apply (drivers/net/vxlan/vxlan_core.c:3885) vxlan
[   22.472042][  T342] __vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:3948) vxlan
[   22.472263][  T342]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.472471][  T342]  ? vxlan_changelink (drivers/net/vxlan/vxlan_core.c:3934) vxlan
[   22.472681][  T342] vxlan_newlink (drivers/net/vxlan/vxlan_core.c:4370) vxlan
[   22.472891][  T342]  ? vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:4370) vxlan
[   22.473104][  T342]  ? rtnl_create_link (net/core/rtnetlink.c:3657)
[   22.473319][  T342]  rtnl_newlink_create (net/core/rtnetlink.c:3843)
[   22.473521][  T342]  ? rtnl_create_link (net/core/rtnetlink.c:3806)
[   22.473715][  T342]  ? __dev_get_by_name (net/core/dev.c:865)
[   22.473916][  T342]  ? rtnl_dev_get (net/core/rtnetlink.c:3419)
[   22.474123][  T342]  ? rtnl_validate_mdb_entry_del_bulk (net/core/rtnetlink.c:3419)
[   22.474378][  T342]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   22.474579][  T342]  ? reacquire_held_locks (kernel/locking/lockdep.c:5385)
[   22.474786][  T342]  __rtnl_newlink (net/core/rtnetlink.c:3957)
[   22.474988][  T342]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   22.475198][  T342]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   22.475400][  T342]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   22.475595][  T342]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   22.475794][  T342]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   22.475989][  T342]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   22.476198][  T342]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   22.476404][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.476602][  T342]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   22.476805][  T342]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   22.477002][  T342]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   22.477221][  T342]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   22.477421][  T342]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333)
[   22.477621][  T342]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   22.477828][  T342]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   22.478027][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.478240][  T342]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   22.478438][  T342]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   22.478637][  T342]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   22.478837][  T342]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   22.479033][  T342]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   22.479244][  T342]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   22.479495][  T342]  ? __copy_msghdr (net/socket.c:2556)
[   22.479700][  T342]  ___sys_sendmsg (net/socket.c:2686)
[   22.479897][  T342]  ? copy_msghdr_from_user (net/socket.c:2673)
[   22.480095][  T342]  ? do_pte_missing (mm/memory.c:6134)
[   22.480319][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.480524][  T342]  ? __handle_mm_fault (mm/memory.c:6318)
[   22.480728][  T342]  ? __pmd_alloc (mm/memory.c:6229)
[   22.480943][  T342]  ? lock_vma_under_rcu (mm/mmap_lock.c:226)
[   22.481174][  T342]  ? lock_vma_under_rcu (mm/mmap_lock.c:259)
[   22.481389][  T342]  __sys_sendmsg (net/socket.c:2716)
[   22.481616][  T342]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   22.481825][  T342]  ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532)
[   22.482030][  T342]  ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:143 ./include/linux/mmap_lock.h:182 arch/x86/mm/fault.c:1338)
[   22.482246][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   22.482452][  T342]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.482661][  T342]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   22.482908][  T342] RIP: 0033:0x7f44c33701d7
[   22.483132][  T342] Code: Unable to access opcode bytes at 0x7f44c33701ad.

Code starting with the faulting instruction
===========================================
[   22.483394][  T342] RSP: 002b:00007ffd42768348 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   22.483705][  T342] RAX: ffffffffffffffda RBX: 00007ffd42768a70 RCX: 00007f44c33701d7
[   22.484006][  T342] RDX: 0000000000000000 RSI: 00007ffd427683b0 RDI: 0000000000000005
[   22.484328][  T342] RBP: 000000000000000c R08: 0000000000000078 R09: 0000000000000000
[   22.484626][  T342] R10: 00007f44c3267770 R11: 0000000000000246 R12: 00007ffd42768a90


Finger prints:
lockdep_init_map_type:gro_cells_init:vxlan_init:register_netdevice:__vxlan_dev_create