======================================
| [  538.050519][ T2686] ------------[ cut here ]------------
| [  538.050818][ T2686] DEBUG_LOCKS_WARN_ON(1)
| [  538.050861][ T2686] WARNING: CPU: 2 PID: 2686 at kernel/locking/lockdep.c:4976 lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7))
| [  538.051652][ T2686] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel sch_ingress 8021q bridge stp llc vrf macvlan veth
[  538.052614][ T2686] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  538.052921][ T2686] RIP: 0010:lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7))
[  538.053209][ T2686] Code: ff 4c 89 e6 48 c7 c7 28 3d 7d 97 e8 ee c9 01 00 e9 3d ff ff ff 90 48 c7 c6 ee ff 76 97 48 c7 c7 3b fc 76 97 e8 c5 89 e9 ff 90 <0f> 0b 90 90 e9 47 ff ff ff 90 48 c7 c6 2a 01 77 97 48 c7 c7 3b fc
All code
========
   0:	ff 4c 89 e6          	decl   -0x1a(%rcx,%rcx,4)
   4:	48 c7 c7 28 3d 7d 97 	mov    $0xffffffff977d3d28,%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 76 97 	mov    $0xffffffff9776ffee,%rsi
  1d:	48 c7 c7 3b fc 76 97 	mov    $0xffffffff9776fc3b,%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 77 97 	mov    $0xffffffff9777012a,%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 77 97 	mov    $0xffffffff9777012a,%rsi
  11:	48                   	rex.W
  12:	c7                   	.byte 0xc7
  13:	c7                   	(bad)
  14:	3b fc                	cmp    %esp,%edi
[  538.053961][ T2686] RSP: 0018:ffffc900006d7018 EFLAGS: 00010282
[  538.054252][ T2686] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  538.054624][ T2686] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[  538.054965][ T2686] RBP: ffffe8ffffc056b0 R08: 0000000000000000 R09: fffffbfff2f7e10c
[  538.055364][ T2686] R10: 0000000000000003 R11: 0000000000000004 R12: ffff88800e382e60
[  538.055722][ T2686] R13: 0000000000000000 R14: ffffe8ffffc05498 R15: ffffe8ffffc05440
[  538.056092][ T2686] FS:  00007fae87c48800(0000) GS:ffff8880976f2000(0000) knlGS:0000000000000000
[  538.056551][ T2686] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  538.056852][ T2686] CR2: 00007fc16ea465c0 CR3: 000000000ec91004 CR4: 0000000000772ef0
[  538.057210][ T2686] PKRU: 55555554
[  538.057401][ T2686] Call Trace:
[  538.057597][ T2686]  <TASK>
[  538.057745][ T2686]  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)
[  538.058046][ T2686] vxlan_init (drivers/net/vxlan/vxlan_core.c:2899) vxlan
[  538.058335][ T2686]  ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:69 mm/kasan/common.c:78)
[  538.058620][ T2686]  register_netdevice (net/core/dev.c:11309)
[  538.058874][ T2686]  ? vxlan_vni_in_use (drivers/net/vxlan/vxlan_core.c:3680) vxlan
[  538.059161][ T2686]  ? unregister_netdevice_queue (net/core/dev.c:11272)
[  538.059480][ T2686]  ? vxlan_config_validate (drivers/net/vxlan/vxlan_core.c:3848) vxlan
[  538.059803][ T2686]  ? vxlan_config_apply (drivers/net/vxlan/vxlan_core.c:3885) vxlan
[  538.060115][ T2686] __vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:3948) vxlan
[  538.060389][ T2686]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  538.060662][ T2686]  ? vxlan_changelink (drivers/net/vxlan/vxlan_core.c:3934) vxlan
[  538.060921][ T2686] vxlan_newlink (drivers/net/vxlan/vxlan_core.c:4370) vxlan
[  538.061170][ T2686]  ? vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:4370) vxlan
[  538.061446][ T2686]  ? rtnl_create_link (net/core/rtnetlink.c:3657)
[  538.061716][ T2686]  rtnl_newlink_create (net/core/rtnetlink.c:3843)
[  538.061960][ T2686]  ? rtnl_create_link (net/core/rtnetlink.c:3806)
[  538.062215][ T2686]  ? __dev_get_by_name (net/core/dev.c:865)
[  538.062464][ T2686]  ? rtnl_dev_get (net/core/rtnetlink.c:3419)
[  538.062720][ T2686]  ? rtnl_validate_mdb_entry_del_bulk (net/core/rtnetlink.c:3419)
[  538.063016][ T2686]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[  538.063283][ T2686]  ? reacquire_held_locks (kernel/locking/lockdep.c:5385)
[  538.063528][ T2686]  __rtnl_newlink (net/core/rtnetlink.c:3957)
[  538.063776][ T2686]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[  538.064007][ T2686]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  538.064263][ T2686]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[  538.064510][ T2686]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  538.064766][ T2686]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  538.065004][ T2686]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[  538.065263][ T2686]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  538.065512][ T2686]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  538.065771][ T2686]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[  538.066019][ T2686]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  538.066275][ T2686]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[  538.066544][ T2686]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[  538.066795][ T2686]  ? 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)
[  538.067031][ T2686]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[  538.067300][ T2686]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[  538.067545][ T2686]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  538.067805][ T2686]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[  538.068119][ T2686]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  538.068400][ T2686]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[  538.068728][ T2686]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  538.068958][ T2686]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[  538.069227][ T2686]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[  538.069669][ T2686]  ? __copy_msghdr (net/socket.c:2556)
[  538.069924][ T2686]  ___sys_sendmsg (net/socket.c:2686)
[  538.070168][ T2686]  ? copy_msghdr_from_user (net/socket.c:2673)
[  538.070433][ T2686]  ? do_pte_missing (mm/memory.c:6134)
[  538.070731][ T2686]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  538.070970][ T2686]  ? __handle_mm_fault (mm/memory.c:6318)
[  538.071294][ T2686]  ? __pmd_alloc (mm/memory.c:6229)
[  538.071542][ T2686]  ? lock_vma_under_rcu (mm/mmap_lock.c:226)
[  538.071763][ T2686]  ? lock_vma_under_rcu (mm/mmap_lock.c:259)
[  538.071995][ T2686]  __sys_sendmsg (net/socket.c:2716)
[  538.072279][ T2686]  ? __sys_sendmsg_sock (net/socket.c:2701)
[  538.072542][ T2686]  ? 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)
[  538.072774][ T2686]  ? 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)
[  538.073084][ T2686]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  538.073430][ T2686]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  538.073698][ T2686]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  538.074015][ T2686] RIP: 0033:0x7fae87e161d7
[  538.074309][ T2686] Code: Unable to access opcode bytes at 0x7fae87e161ad.

Code starting with the faulting instruction
===========================================
[  538.074661][ T2686] RSP: 002b:00007ffd59ed9e98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  538.074995][ T2686] RAX: ffffffffffffffda RBX: 00007ffd59eda5c0 RCX: 00007fae87e161d7
[  538.075402][ T2686] RDX: 0000000000000000 RSI: 00007ffd59ed9f00 RDI: 0000000000000005
[  538.075729][ T2686] RBP: 000000000000000d R08: 0000000000000088 R09: 0000000000000000
[  538.076038][ T2686] R10: 00007fae87d0d770 R11: 0000000000000246 R12: 00007ffd59eda5e0


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