unregister_netdevice: waiting for macvlan1 to become free. Usage count = 2
unregister_netdevice: waiting for veth1_vlan to become free. Usage count = 2
ref_tracker: netdev@ffff88811170c700 has 1/1 users at
     macvlan_init+0x7d1/0x9a0
     register_netdevice+0x6a1/0x1eb0
     macvlan_common_newlink+0x126b/0x19f0
     rtnl_newlink_create+0x310/0xb00
     rtnl_newlink+0x167f/0x1bd0
     rtnetlink_rcv_msg+0x802/0xc00
     netlink_rcv_skb+0x226/0x4a0
     netlink_unicast+0x7bb/0x940
     netlink_sendmsg+0x813/0xb40
     sock_sendmsg_nosec+0x13a/0x180
     __sys_sendto+0x408/0x5a0
     __x64_sys_sendto+0xde/0x100
     do_syscall_64+0x174/0x580
     entry_SYSCALL_64_after_hwframe+0x77/0x7f

