unregister_netdevice: waiting for vxcan1 to become free. Usage count = 2
ref_tracker: netdev@0000000075310bf0 has 1/1 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4499 [inline]
     netdev_tracker_alloc+0x68/0xb4 include/linux/netdevice.h:4511
     fib_create_info+0x15cc/0x2184 net/ipv4/fib_semantics.c:1493
     fib_table_insert+0xa4/0x12bc net/ipv4/fib_trie.c:1212
     fib_magic+0x26c/0x344 net/ipv4/fib_frontend.c:1128
     fib_add_ifaddr+0x114/0x500 net/ipv4/fib_frontend.c:1150
     fib_inetaddr_event+0x114/0x1c0 net/ipv4/fib_frontend.c:1464
     notifier_call_chain+0x1a4/0x624 kernel/notifier.c:85
     blocking_notifier_call_chain+0x70/0xa0 kernel/notifier.c:380
     __inet_insert_ifa+0x87c/0xa74 net/ipv4/devinet.c:566
     inet_rtm_newaddr+0xb94/0x1130 net/ipv4/devinet.c:1001
     rtnetlink_rcv_msg+0x66c/0x9bc net/core/rtnetlink.c:7076
     netlink_rcv_skb+0x238/0x414 net/netlink/af_netlink.c:2556
     rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:7103
     netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
     netlink_unicast+0x600/0x7f8 net/netlink/af_netlink.c:1345
     netlink_sendmsg+0x648/0x948 net/netlink/af_netlink.c:1900
     sock_sendmsg_nosec net/socket.c:775 [inline]
     __sock_sendmsg+0xc8/0x17c net/socket.c:790

unregister_netdevice: waiting for vxcan0 to become free. Usage count = 2
ref_tracker: netdev@000000007f0e510c has 1/1 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4499 [inline]
     netdev_tracker_alloc+0x68/0xb4 include/linux/netdevice.h:4511
     fib_create_info+0x15cc/0x2184 net/ipv4/fib_semantics.c:1493
     fib_table_insert+0xa4/0x12bc net/ipv4/fib_trie.c:1212
     fib_magic+0x26c/0x344 net/ipv4/fib_frontend.c:1128
     fib_add_ifaddr+0x114/0x500 net/ipv4/fib_frontend.c:1150
     fib_inetaddr_event+0x114/0x1c0 net/ipv4/fib_frontend.c:1464
     notifier_call_chain+0x1a4/0x624 kernel/notifier.c:85
     blocking_notifier_call_chain+0x70/0xa0 kernel/notifier.c:380
     __inet_insert_ifa+0x87c/0xa74 net/ipv4/devinet.c:566
     inet_rtm_newaddr+0xb94/0x1130 net/ipv4/devinet.c:1001
     rtnetlink_rcv_msg+0x66c/0x9bc net/core/rtnetlink.c:7076
     netlink_rcv_skb+0x238/0x414 net/netlink/af_netlink.c:2556
     rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:7103
     netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
     netlink_unicast+0x600/0x7f8 net/netlink/af_netlink.c:1345
     netlink_sendmsg+0x648/0x948 net/netlink/af_netlink.c:1900
     sock_sendmsg_nosec net/socket.c:775 [inline]
     __sock_sendmsg+0xc8/0x17c net/socket.c:790