======================================
| [ 1817.355570][T17674] ------------[ cut here ]------------
| [ 1817.355799][T17674] DEBUG_LOCKS_WARN_ON(1)
| [ 1817.355841][T17674] WARNING: CPU: 2 PID: 17674 at kernel/locking/lockdep.c:4976 lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7))
| [ 1817.356416][T17674] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel act_gact cls_flower sch_ingress bridge stp llc vrf veth
[ 1817.357248][T17674] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1817.357508][T17674] RIP: 0010:lockdep_init_map_type (kernel/locking/lockdep.c:4976 (discriminator 7))
[ 1817.359285][T17674] Code: ff 4c 89 e6 48 c7 c7 28 3d 3d 8a e8 ee c9 01 00 e9 3d ff ff ff 90 48 c7 c6 ee ff 36 8a 48 c7 c7 3b fc 36 8a e8 c5 89 e9 ff 90 <0f> 0b 90 90 e9 47 ff ff ff 90 48 c7 c6 2a 01 37 8a 48 c7 c7 3b fc
All code
========
   0:	ff 4c 89 e6          	decl   -0x1a(%rcx,%rcx,4)
   4:	48 c7 c7 28 3d 3d 8a 	mov    $0xffffffff8a3d3d28,%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 36 8a 	mov    $0xffffffff8a36ffee,%rsi
  1d:	48 c7 c7 3b fc 36 8a 	mov    $0xffffffff8a36fc3b,%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 37 8a 	mov    $0xffffffff8a37012a,%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 37 8a 	mov    $0xffffffff8a37012a,%rsi
  11:	48                   	rex.W
  12:	c7                   	.byte 0xc7
  13:	c7                   	(bad)
  14:	3b fc                	cmp    %esp,%edi
[ 1817.360163][T17674] RSP: 0018:ffffc900011d7018 EFLAGS: 00010282
[ 1817.360598][T17674] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 1817.361070][T17674] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 1817.361523][T17674] RBP: ffffe8ffffc04fb0 R08: 0000000000000000 R09: fffffbfff14fe10c
[ 1817.361996][T17674] R10: 0000000000000003 R11: 0000000000000004 R12: ffff888008b3ae60
[ 1817.362444][T17674] R13: 0000000000000000 R14: ffffe8ffffc04d98 R15: ffffe8ffffc04d40
[ 1817.362864][T17674] FS:  00007f541eb36800(0000) GS:ffff8880aa6f2000(0000) knlGS:0000000000000000
[ 1817.363340][T17674] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1817.363758][T17674] CR2: 00007f83b519a000 CR3: 000000000835c004 CR4: 0000000000772ef0
[ 1817.364141][T17674] PKRU: 55555554
[ 1817.364321][T17674] Call Trace:
[ 1817.364494][T17674]  <TASK>
[ 1817.364630][T17674]  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)
[ 1817.364879][T17674] vxlan_init (drivers/net/vxlan/vxlan_core.c:2899) vxlan
[ 1817.365102][T17674]  ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:69 mm/kasan/common.c:78)
[ 1817.365327][T17674]  register_netdevice (net/core/dev.c:11309)
[ 1817.365544][T17674]  ? vxlan_vni_in_use (drivers/net/vxlan/vxlan_core.c:3680) vxlan
[ 1817.365773][T17674]  ? unregister_netdevice_queue (net/core/dev.c:11272)
[ 1817.366033][T17674]  ? vxlan_config_validate (drivers/net/vxlan/vxlan_core.c:3848) vxlan
[ 1817.366302][T17674]  ? vxlan_config_apply (drivers/net/vxlan/vxlan_core.c:3885) vxlan
[ 1817.366569][T17674] __vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:3948) vxlan
[ 1817.366803][T17674]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[ 1817.367162][T17674]  ? vxlan_changelink (drivers/net/vxlan/vxlan_core.c:3934) vxlan
[ 1817.367380][T17674] vxlan_newlink (drivers/net/vxlan/vxlan_core.c:4370) vxlan
[ 1817.367594][T17674]  ? vxlan_dev_create (drivers/net/vxlan/vxlan_core.c:4370) vxlan
[ 1817.367825][T17674]  ? rtnl_create_link (net/core/rtnetlink.c:3657)
[ 1817.368153][T17674]  rtnl_newlink_create (net/core/rtnetlink.c:3843)
[ 1817.368362][T17674]  ? rtnl_create_link (net/core/rtnetlink.c:3806)
[ 1817.368563][T17674]  ? __dev_get_by_name (net/core/dev.c:865)
[ 1817.368783][T17674]  ? rtnl_dev_get (net/core/rtnetlink.c:3419)
[ 1817.369109][T17674]  ? rtnl_validate_mdb_entry_del_bulk (net/core/rtnetlink.c:3419)
[ 1817.369367][T17674]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[ 1817.369568][T17674]  ? reacquire_held_locks (kernel/locking/lockdep.c:5385)
[ 1817.369783][T17674]  __rtnl_newlink (net/core/rtnetlink.c:3957)
[ 1817.370140][T17674]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[ 1817.370351][T17674]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[ 1817.370569][T17674]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[ 1817.370795][T17674]  ? __lock_release (kernel/locking/lockdep.c:5536)
[ 1817.371157][T17674]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[ 1817.371364][T17674]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[ 1817.371569][T17674]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[ 1817.371799][T17674]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[ 1817.372159][T17674]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[ 1817.372378][T17674]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[ 1817.372590][T17674]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[ 1817.372820][T17674]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[ 1817.373148][T17674]  ? 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)
[ 1817.373358][T17674]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[ 1817.373564][T17674]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[ 1817.373785][T17674]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[ 1817.374123][T17674]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[ 1817.374357][T17674]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[ 1817.374573][T17674]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[ 1817.374807][T17674]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[ 1817.375142][T17674]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[ 1817.375371][T17674]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[ 1817.375622][T17674]  ? __copy_msghdr (net/socket.c:2556)
[ 1817.375852][T17674]  ___sys_sendmsg (net/socket.c:2686)
[ 1817.376186][T17674]  ? copy_msghdr_from_user (net/socket.c:2673)
[ 1817.376396][T17674]  ? do_pte_missing (mm/memory.c:6134)
[ 1817.376619][T17674]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[ 1817.376840][T17674]  ? __handle_mm_fault (mm/memory.c:6318)
[ 1817.377162][T17674]  ? __pmd_alloc (mm/memory.c:6229)
[ 1817.377371][T17674]  ? lock_vma_under_rcu (mm/mmap_lock.c:226)
[ 1817.377572][T17674]  ? lock_vma_under_rcu (mm/mmap_lock.c:259)
[ 1817.377783][T17674]  __sys_sendmsg (net/socket.c:2716)
[ 1817.378112][T17674]  ? __sys_sendmsg_sock (net/socket.c:2701)
[ 1817.378324][T17674]  ? 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)
[ 1817.378539][T17674]  ? 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)
[ 1817.378762][T17674]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[ 1817.379098][T17674]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 1817.379310][T17674]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1817.379566][T17674] RIP: 0033:0x7f541ed041d7
[ 1817.379924][T17674] Code: Unable to access opcode bytes at 0x7f541ed041ad.

Code starting with the faulting instruction
===========================================
[ 1817.380190][T17674] RSP: 002b:00007fff0faf34c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 1817.380490][T17674] RAX: ffffffffffffffda RBX: 00007fff0faf3bf0 RCX: 00007f541ed041d7
[ 1817.380933][T17674] RDX: 0000000000000000 RSI: 00007fff0faf3530 RDI: 0000000000000005
[ 1817.381234][T17674] RBP: 000000000000000f R08: 00000000000000a0 R09: 0000000000000000
[ 1817.381528][T17674] R10: 00007f541ebfb770 R11: 0000000000000246 R12: 00007fff0faf3c10


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