======================================
| [   23.083926][  T341] ------------[ cut here ]------------
| [   23.084127][  T341] DEBUG_LOCKS_WARN_ON(1)
| [   23.084144][  T341] WARNING: CPU: 0 PID: 341 at kernel/locking/lockdep.c:4976 lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7))
| [   23.084729][  T341] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel bridge stp llc 8021q sch_ingress vrf veth
[   23.085495][  T341] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.085759][  T341] RIP: 0010:lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7))
[   23.086014][  T341] Code: ff 4c 89 e6 48 c7 c7 28 3d 5d 9d e8 ee c9 01 00 e9 3d ff ff ff 90 48 c7 c6 ee ff 56 9d 48 c7 c7 3b fc 56 9d e8 c5 89 e9 ff 90 <0f> 0b 90 90 e9 47 ff ff ff 90 48 c7 c6 2a 01 57 9d 48 c7 c7 3b fc
All code
========
   0:	ff 4c 89 e6          	decl   -0x1a(%rcx,%rcx,4)
   4:	48 c7 c7 28 3d 5d 9d 	mov    $0xffffffff9d5d3d28,%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 56 9d 	mov    $0xffffffff9d56ffee,%rsi
  1d:	48 c7 c7 3b fc 56 9d 	mov    $0xffffffff9d56fc3b,%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 57 9d 	mov    $0xffffffff9d57012a,%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 57 9d 	mov    $0xffffffff9d57012a,%rsi
  11:	48                   	rex.W
  12:	c7                   	.byte 0xc7
  13:	c7                   	(bad)
  14:	3b fc                	cmp    %esp,%edi
[   23.086754][  T341] RSP: 0018:ffffc900005a7018 EFLAGS: 00010282
[   23.087008][  T341] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   23.087305][  T341] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[   23.087605][  T341] RBP: ffffe8ffffc05070 R08: 0000000000000000 R09: fffffbfff3b3e10c
[   23.087914][  T341] R10: 0000000000000003 R11: 0000000000000004 R12: ffff88800de1ae60
[   23.088214][  T341] R13: 0000000000000000 R14: ffffe8ffffc04e58 R15: ffffe8ffffc04e00
[   23.088510][  T341] FS:  00007fc4d8314800(0000) GS:ffff8880917f2000(0000) knlGS:0000000000000000
[   23.088863][  T341] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.089115][  T341] CR2: 00007f8137a545c0 CR3: 000000000df23006 CR4: 0000000000772ef0
[   23.089413][  T341] PKRU: 55555554
[   23.089565][  T341] Call Trace:
[   23.089720][  T341]  <TASK>
[   23.089825][  T341]  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)
[   23.090028][  T341] vxlan_init (drivers/net/vxlan/vxlan_core.c:2899) vxlan
[   23.090235][  T341]  ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:69 mm/kasan/common.c:78)
[   23.090435][  T341]  register_netdevice (net/core/dev.c:11309)
[   23.090639][  T341]  ? vxlan_vni_in_use (drivers/net/vxlan/vxlan_core.c:3680) vxlan
[   23.090852][  T341]  ? unregister_netdevice_queue (net/core/dev.c:11272)
[   23.091098][  T341]  ? vxlan_config_validate (drivers/net/vxlan/vxlan_core.c:3848) vxlan
[   23.091352][  T341]  ? vxlan_config_apply (drivers/net/vxlan/vxlan_core.c:3885) vxlan
[   23.091585][  T341] __vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:3948) vxlan
[   23.091791][  T341]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.091982][  T341]  ? vxlan_changelink (drivers/net/vxlan/vxlan_core.c:3934) vxlan
[   23.092172][  T341] vxlan_newlink (drivers/net/vxlan/vxlan_core.c:4370) vxlan
[   23.092363][  T341]  ? vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:4370) vxlan
[   23.092554][  T341]  ? rtnl_create_link (net/core/rtnetlink.c:3657)
[   23.092744][  T341]  rtnl_newlink_create (net/core/rtnetlink.c:3843)
[   23.092928][  T341]  ? rtnl_create_link (net/core/rtnetlink.c:3806)
[   23.093109][  T341]  ? __dev_get_by_name (net/core/dev.c:865)
[   23.093297][  T341]  ? rtnl_dev_get (net/core/rtnetlink.c:3419)
[   23.093480][  T341]  ? rtnl_validate_mdb_entry_del_bulk (net/core/rtnetlink.c:3419)
[   23.093714][  T341]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   23.093896][  T341]  ? reacquire_held_locks (kernel/locking/lockdep.c:5385)
[   23.094079][  T341]  __rtnl_newlink (net/core/rtnetlink.c:3957)
[   23.094263][  T341]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   23.094447][  T341]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   23.094632][  T341]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   23.094824][  T341]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.095007][  T341]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   23.095188][  T341]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   23.095370][  T341]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   23.095551][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.095743][  T341]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   23.095926][  T341]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   23.096105][  T341]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   23.096296][  T341]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   23.096478][  T341]  ? 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)
[   23.096662][  T341]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   23.096867][  T341]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   23.097053][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.097236][  T341]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   23.097422][  T341]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   23.097605][  T341]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   23.097794][  T341]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   23.097975][  T341]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   23.098159][  T341]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   23.098386][  T341]  ? __copy_msghdr (net/socket.c:2556)
[   23.098571][  T341]  ___sys_sendmsg (net/socket.c:2686)
[   23.098759][  T341]  ? copy_msghdr_from_user (net/socket.c:2673)
[   23.098941][  T341]  ? do_pte_missing (mm/memory.c:6134)
[   23.099130][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.099313][  T341]  ? __handle_mm_fault (mm/memory.c:6318)
[   23.099493][  T341]  ? __pmd_alloc (mm/memory.c:6229)
[   23.099675][  T341]  ? lock_vma_under_rcu (mm/mmap_lock.c:226)
[   23.099863][  T341]  ? lock_vma_under_rcu (mm/mmap_lock.c:259)
[   23.100047][  T341]  __sys_sendmsg (net/socket.c:2716)
[   23.100264][  T341]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   23.100449][  T341]  ? 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)
[   23.100635][  T341]  ? 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)
[   23.100828][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.101014][  T341]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.101212][  T341]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   23.101440][  T341] RIP: 0033:0x7fc4d84e21d7
[   23.101635][  T341] Code: Unable to access opcode bytes at 0x7fc4d84e21ad.

Code starting with the faulting instruction
===========================================
[   23.101886][  T341] RSP: 002b:00007ffd96243468 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.102167][  T341] RAX: ffffffffffffffda RBX: 00007ffd96243b90 RCX: 00007fc4d84e21d7
[   23.102440][  T341] RDX: 0000000000000000 RSI: 00007ffd962434d0 RDI: 0000000000000005
[   23.102718][  T341] RBP: 000000000000000d R08: 000000000000008c R09: 0000000000000000
[   23.102999][  T341] R10: 00007fc4d83d9770 R11: 0000000000000246 R12: 00007ffd96243bb0


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