unregister_netdevice: waiting for lo to become free. Usage count = 3330
ref_tracker: netdev@ffff88802a15e610 has 3329/3329 users at
     dst_init+0xd9/0x450
     dst_alloc+0x12a/0x170
     ip_route_input_rcu+0x1ed5/0x2ff0
     ip_route_input_noref+0x167/0x250
     ip_rcv_finish_core+0x5af/0x1c00
     ip_sublist_rcv+0x397/0x9b0
     ip_list_rcv+0x3e2/0x430
     __netif_receive_skb_list_core+0x7d2/0x800
     netif_receive_skb_list_internal+0x975/0xcc0
     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

