======================================
| [   20.625122][  T287] ------------[ cut here ]------------
| [   20.625324][  T287] DEBUG_LOCKS_WARN_ON(1)
| [   20.625340][  T287] WARNING: CPU: 2 PID: 287 at kernel/locking/lockdep.c:4976 lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7))
| [   20.625885][  T287] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel 8021q veth br_netfilter bridge stp llc
[   20.626646][  T287] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.626898][  T287] RIP: 0010:lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7))
[   20.627153][  T287] Code: ff 4c 89 e6 48 c7 c7 70 5c dd 99 e8 ee c9 01 00 e9 3d ff ff ff 90 48 c7 c6 54 1d d7 99 48 c7 c7 a1 19 d7 99 e8 75 87 e9 ff 90 <0f> 0b 90 90 e9 47 ff ff ff 90 48 c7 c6 90 1e d7 99 48 c7 c7 a1 19
All code
========
   0:	ff 4c 89 e6          	decl   -0x1a(%rcx,%rcx,4)
   4:	48 c7 c7 70 5c dd 99 	mov    $0xffffffff99dd5c70,%rdi
   b:	e8 ee c9 01 00       	call   0x1c9fe
  10:	e9 3d ff ff ff       	jmp    0xffffffffffffff52
  15:	90                   	nop
  16:	48 c7 c6 54 1d d7 99 	mov    $0xffffffff99d71d54,%rsi
  1d:	48 c7 c7 a1 19 d7 99 	mov    $0xffffffff99d719a1,%rdi
  24:	e8 75 87 e9 ff       	call   0xffffffffffe9879e
  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 90 1e d7 99 	mov    $0xffffffff99d71e90,%rsi
  3b:	48                   	rex.W
  3c:	c7                   	.byte 0xc7
  3d:	c7                   	(bad)
  3e:	a1                   	.byte 0xa1
  3f:	19                   	.byte 0x19

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 90 1e d7 99 	mov    $0xffffffff99d71e90,%rsi
  11:	48                   	rex.W
  12:	c7                   	.byte 0xc7
  13:	c7                   	(bad)
  14:	a1                   	.byte 0xa1
  15:	19                   	.byte 0x19
[   20.627812][  T287] RSP: 0018:ffffc90000667018 EFLAGS: 00010282
[   20.628065][  T287] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   20.628359][  T287] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[   20.628657][  T287] RBP: ffffe8ffffc07230 R08: 0000000000000000 R09: fffffbfff343e1f8
[   20.628946][  T287] R10: 0000000000000003 R11: 0000000000000004 R12: ffff8880056a2e60
[   20.629232][  T287] R13: 0000000000000000 R14: ffffe8ffffc07018 R15: ffffe8ffffc06fc0
[   20.629532][  T287] FS:  00007f36aeff9800(0000) GS:ffff88809acec000(0000) knlGS:0000000000000000
[   20.629871][  T287] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.630117][  T287] CR2: 0000555ecd199c30 CR3: 0000000009209004 CR4: 0000000000772ef0
[   20.630406][  T287] PKRU: 55555554
[   20.630570][  T287] Call Trace:
[   20.630730][  T287]  <TASK>
[   20.630844][  T287]  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)
[   20.631052][  T287] vxlan_init (drivers/net/vxlan/vxlan_core.c:2899) vxlan
[   20.631265][  T287]  ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:69 mm/kasan/common.c:78)
[   20.631471][  T287]  register_netdevice (net/core/dev.c:11309)
[   20.631682][  T287]  ? vxlan_vni_in_use (drivers/net/vxlan/vxlan_core.c:3680) vxlan
[   20.631899][  T287]  ? unregister_netdevice_queue (net/core/dev.c:11272)
[   20.632142][  T287]  ? vxlan_config_validate (drivers/net/vxlan/vxlan_core.c:3848) vxlan
[   20.632396][  T287]  ? vxlan_config_apply (drivers/net/vxlan/vxlan_core.c:3885) vxlan
[   20.632655][  T287] __vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:3948) vxlan
[   20.632864][  T287]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   20.633065][  T287]  ? vxlan_changelink (drivers/net/vxlan/vxlan_core.c:3934) vxlan
[   20.633276][  T287] vxlan_newlink (drivers/net/vxlan/vxlan_core.c:4370) vxlan
[   20.633485][  T287]  ? vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:4370) vxlan
[   20.633708][  T287]  ? rtnl_create_link (net/core/rtnetlink.c:3657)
[   20.633909][  T287]  rtnl_newlink_create (net/core/rtnetlink.c:3843)
[   20.634111][  T287]  ? rtnl_create_link (net/core/rtnetlink.c:3806)
[   20.634310][  T287]  ? __dev_get_by_name (net/core/dev.c:865)
[   20.634518][  T287]  ? rtnl_dev_get (net/core/rtnetlink.c:3419)
[   20.634718][  T287]  ? rtnl_validate_mdb_entry_del_bulk (net/core/rtnetlink.c:3419)
[   20.634963][  T287]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   20.635163][  T287]  ? reacquire_held_locks (kernel/locking/lockdep.c:5385)
[   20.635370][  T287]  __rtnl_newlink (net/core/rtnetlink.c:3957)
[   20.635579][  T287]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   20.635781][  T287]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   20.635984][  T287]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   20.636185][  T287]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.636386][  T287]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   20.636593][  T287]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   20.636794][  T287]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   20.636996][  T287]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.637198][  T287]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   20.637401][  T287]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   20.637608][  T287]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   20.637812][  T287]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   20.638011][  T287]  ? 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)
[   20.638212][  T287]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   20.638415][  T287]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   20.638623][  T287]  ? __lock_acquire (kernel/locking/lockdep.c:5227)
[   20.638825][  T287]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   20.639026][  T287]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   20.639227][  T287]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   20.639429][  T287]  ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18)
[   20.639643][  T287]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   20.639851][  T287]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   20.640054][  T287]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   20.640297][  T287]  ? __copy_msghdr (net/socket.c:2556)
[   20.640505][  T287]  ___sys_sendmsg (net/socket.c:2686)
[   20.640707][  T287]  ? copy_msghdr_from_user (net/socket.c:2673)
[   20.640906][  T287]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.641108][  T287]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.641307][  T287]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   20.641522][  T287]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.641723][  T287]  __sys_sendmsg (net/socket.c:2716)
[   20.641923][  T287]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   20.642123][  T287]  ? __rseq_handle_notify_resume (kernel/rseq.c:442)
[   20.642369][  T287]  ? do_user_addr_fault (./include/linux/mmap_lock.h:396 arch/x86/mm/fault.c:1415)
[   20.642577][  T287]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.642780][  T287]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.642982][  T287]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   20.643228][  T287] RIP: 0033:0x7f36af1c71d7
[   20.643440][  T287] Code: Unable to access opcode bytes at 0x7f36af1c71ad.

Code starting with the faulting instruction
===========================================
[   20.643700][  T287] RSP: 002b:00007ffcdab62cb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.643990][  T287] RAX: ffffffffffffffda RBX: 00007ffcdab633f0 RCX: 00007f36af1c71d7
[   20.644278][  T287] RDX: 0000000000000000 RSI: 00007ffcdab62d20 RDI: 0000000000000005
[   20.644576][  T287] RBP: 000000000000000a R08: 0000000000000074 R09: 0000000000000000
[   20.644864][  T287] R10: 00007f36af0be770 R11: 0000000000000246 R12: 00007ffcdab63410


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