unregister_netdevice: waiting for batadv_slave_0 to become free. Usage count = 2
ref_tracker: netdev@ffff88803267a610 has 1/1 users at
     batadv_hard_if_event+0xf0f/0x1730
     notifier_call_chain+0x1b6/0x3e0
     register_netdevice+0x1608/0x1ae0
     veth_newlink+0x5d4/0xa60
     rtnl_newlink_create+0x310/0xb00
     rtnl_newlink+0x16e4/0x1c80
     rtnetlink_rcv_msg+0x7cf/0xb70
     netlink_rcv_skb+0x208/0x470
     netlink_unicast+0x82f/0x9e0
     netlink_sendmsg+0x805/0xb30
     __sock_sendmsg+0x21c/0x270
     __sys_sendto+0x3bd/0x520
     __x64_sys_sendto+0xde/0x100
     do_syscall_64+0xfa/0x3b0
     entry_SYSCALL_64_after_hwframe+0x77/0x7f

unregister_netdevice: waiting for lo to become free. Usage count = 3330
ref_tracker: netdev@ffff888108ef4610 has 3329/3329 users at
     dst_init+0xd9/0x450
     dst_alloc+0x12a/0x170
     ip_route_input_rcu+0x1ec2/0x30d0
     ip_route_input_noref+0x167/0x250
     ip_rcv_finish_core+0x5af/0x1c00
     ip_sublist_rcv+0x398/0xa10
     ip_list_rcv+0x3e2/0x430
     __netif_receive_skb_list_core+0x7d2/0x800
     netif_receive_skb_list_internal+0x96f/0xcb0
     netif_receive_skb_list+0x54/0x450
     bpf_test_run_xdp_live+0x1786/0x1b10
     bpf_prog_test_run_xdp+0x713/0x1000
     bpf_prog_test_run+0x2c7/0x340
     __sys_bpf+0x581/0x870
     __x64_sys_bpf+0x7c/0x90
     do_syscall_64+0xfa/0x3b0

