======================================
| [  722.079197][ T5541] ------------[ cut here ]------------
| [  722.079505][ T5541] DEBUG_LOCKS_WARN_ON(1)
| [  722.079564][ T5541] WARNING: CPU: 1 PID: 5541 at kernel/locking/lockdep.c:4976 lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7))
| [  722.080245][ T5541] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel netdevsim [last unloaded: netdevsim]
[  722.081017][ T5541] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  722.081278][ T5541] RIP: 0010:lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7))
[  722.081554][ T5541] Code: ff 4c 89 e6 48 c7 c7 70 82 9e a5 e8 ee c9 01 00 e9 3d ff ff ff 90 48 c7 c6 b1 42 98 a5 48 c7 c7 fe 3e 98 a5 e8 c5 89 e9 ff 90 <0f> 0b 90 90 e9 47 ff ff ff 90 48 c7 c6 ed 43 98 a5 48 c7 c7 fe 3e
All code
========
   0:	ff 4c 89 e6          	decl   -0x1a(%rcx,%rcx,4)
   4:	48 c7 c7 70 82 9e a5 	mov    $0xffffffffa59e8270,%rdi
   b:	e8 ee c9 01 00       	call   0x1c9fe
  10:	e9 3d ff ff ff       	jmp    0xffffffffffffff52
  15:	90                   	nop
  16:	48 c7 c6 b1 42 98 a5 	mov    $0xffffffffa59842b1,%rsi
  1d:	48 c7 c7 fe 3e 98 a5 	mov    $0xffffffffa5983efe,%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 ed 43 98 a5 	mov    $0xffffffffa59843ed,%rsi
  3b:	48                   	rex.W
  3c:	c7                   	.byte 0xc7
  3d:	c7                   	(bad)
  3e:	fe                   	(bad)
  3f:	3e                   	ds

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 ed 43 98 a5 	mov    $0xffffffffa59843ed,%rsi
  11:	48                   	rex.W
  12:	c7                   	.byte 0xc7
  13:	c7                   	(bad)
  14:	fe                   	(bad)
  15:	3e                   	ds
[  722.082288][ T5541] RSP: 0018:ffffc900004f7018 EFLAGS: 00010282
[  722.082567][ T5541] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  722.082850][ T5541] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[  722.083129][ T5541] RBP: ffffe8ffffc03230 R08: 0000000000000000 R09: fffffbfff4bbe10c
[  722.083424][ T5541] R10: 0000000000000003 R11: 0000000000000004 R12: ffff88800d14ae60
[  722.083839][ T5541] R13: 0000000000000000 R14: ffffe8ffffc03018 R15: ffffe8ffffc02fc0
[  722.084114][ T5541] FS:  00007f3751531800(0000) GS:ffff88808f07c000(0000) knlGS:0000000000000000
[  722.084579][ T5541] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  722.084838][ T5541] CR2: 00000000004e5fe0 CR3: 0000000008be8005 CR4: 0000000000772ef0
[  722.085134][ T5541] PKRU: 55555554
[  722.085270][ T5541] Call Trace:
[  722.085465][ T5541]  <TASK>
[  722.085589][ T5541]  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)
[  722.085807][ T5541] vxlan_init (drivers/net/vxlan/vxlan_core.c:2899) vxlan
[  722.086004][ T5541]  ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:69 mm/kasan/common.c:78)
[  722.086199][ T5541]  register_netdevice (net/core/dev.c:11309)
[  722.086533][ T5541]  ? vxlan_vni_in_use (drivers/net/vxlan/vxlan_core.c:3680) vxlan
[  722.086735][ T5541]  ? unregister_netdevice_queue (net/core/dev.c:11272)
[  722.087004][ T5541]  ? vxlan_config_apply (drivers/net/vxlan/vxlan_core.c:3890) vxlan
[  722.087378][ T5541] __vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:3948) vxlan
[  722.087580][ T5541]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  722.087763][ T5541]  ? vxlan_changelink (drivers/net/vxlan/vxlan_core.c:3934) vxlan
[  722.088004][ T5541] vxlan_newlink (drivers/net/vxlan/vxlan_core.c:4370) vxlan
[  722.088327][ T5541]  ? vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:4370) vxlan
[  722.088548][ T5541]  ? rtnl_create_link (net/core/rtnetlink.c:3657)
[  722.088734][ T5541]  rtnl_newlink_create (net/core/rtnetlink.c:3843)
[  722.088949][ T5541]  ? rtnl_create_link (net/core/rtnetlink.c:3806)
[  722.089248][ T5541]  ? __dev_get_by_name (net/core/dev.c:865)
[  722.089461][ T5541]  ? rtnl_dev_get (net/core/rtnetlink.c:3419)
[  722.089694][ T5541]  ? rtnl_validate_mdb_entry_del_bulk (net/core/rtnetlink.c:3419)
[  722.089953][ T5541]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[  722.090258][ T5541]  ? reacquire_held_locks (kernel/locking/lockdep.c:5385)
[  722.090470][ T5541]  __rtnl_newlink (net/core/rtnetlink.c:3957)
[  722.090665][ T5541]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[  722.090853][ T5541]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  722.091156][ T5541]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[  722.091339][ T5541]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  722.091544][ T5541]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  722.091737][ T5541]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[  722.092059][ T5541]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  722.092243][ T5541]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  722.092443][ T5541]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[  722.092652][ T5541]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  722.092954][ T5541]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[  722.093140][ T5541]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[  722.093320][ T5541]  ? 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)
[  722.093530][ T5541]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[  722.093833][ T5541]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[  722.094018][ T5541]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  722.094200][ T5541]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[  722.094394][ T5541]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  722.094694][ T5541]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[  722.094930][ T5541]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  722.095131][ T5541]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[  722.095335][ T5541]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[  722.095710][ T5541]  ? __copy_msghdr (net/socket.c:2556)
[  722.095904][ T5541]  ___sys_sendmsg (net/socket.c:2686)
[  722.096119][ T5541]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[  722.096300][ T5541]  ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3125)
[  722.096775][ T5541]  ? copy_msghdr_from_user (net/socket.c:2673)
[  722.096989][ T5541]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  722.097199][ T5541]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  722.097559][ T5541]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  722.097742][ T5541]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[  722.097959][ T5541]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  722.098141][ T5541]  __sys_sendmsg (net/socket.c:2716)
[  722.098322][ T5541]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[  722.098559][ T5541]  ? __sys_sendmsg_sock (net/socket.c:2701)
[  722.098753][ T5541]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  722.098935][ T5541]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  722.099246][ T5541]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  722.099501][ T5541] RIP: 0033:0x7f37516ff1d7
[  722.099711][ T5541] Code: Unable to access opcode bytes at 0x7f37516ff1ad.

Code starting with the faulting instruction
===========================================
[  722.099949][ T5541] RSP: 002b:00007fffcfb42368 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  722.100375][ T5541] RAX: ffffffffffffffda RBX: 00007fffcfb42a90 RCX: 00007f37516ff1d7
[  722.100654][ T5541] RDX: 0000000000000000 RSI: 00007fffcfb423d0 RDI: 0000000000000005
[  722.101078][ T5541] RBP: 0000000000000008 R08: 0000000000000068 R09: 0000000000000000
[  722.101378][ T5541] R10: 00007f375178dac0 R11: 0000000000000246 R12: 00007fffcfb42aa8


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