unregister_netdevice: waiting for lo to become free. Usage count = 3330
ref_tracker: netdev@ffff888033700700 has 3329/3329 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4523 [inline]
     netdev_hold include/linux/netdevice.h:4552 [inline]
     dst_init+0xbe/0x470 net/core/dst.c:52
     dst_alloc+0x12a/0x170 net/core/dst.c:94
     rt_dst_alloc net/ipv4/route.c:1681 [inline]
     ip_route_input_slow net/ipv4/route.c:2458 [inline]
     ip_route_input_rcu+0x20ca/0x3190 net/ipv4/route.c:2572
     ip_route_input_noref+0x17c/0x270 net/ipv4/route.c:2583
     ip_rcv_finish_core+0x593/0x1c00 net/ipv4/ip_input.c:407
     ip_list_rcv_finish net/ipv4/ip_input.c:658 [inline]
     ip_sublist_rcv+0x3ab/0xa70 net/ipv4/ip_input.c:683
     ip_list_rcv+0x3ec/0x440 net/ipv4/ip_input.c:717
     __netif_receive_skb_list_ptype net/core/dev.c:6285 [inline]
     __netif_receive_skb_list_core+0x804/0x830 net/core/dev.c:6331
     __netif_receive_skb_list net/core/dev.c:6383 [inline]
     netif_receive_skb_list_internal+0x995/0xcf0 net/core/dev.c:6474
     netif_receive_skb_list+0x67/0x480 net/core/dev.c:6526
     xdp_recv_frames net/bpf/test_run.c:268 [inline]
     xdp_test_run_batch net/bpf/test_run.c:349 [inline]
     bpf_test_run_xdp_live+0x1875/0x1c20 net/bpf/test_run.c:378
     bpf_prog_test_run_xdp+0x7d8/0x11d0 net/bpf/test_run.c:1463
     bpf_prog_test_run+0x2c5/0x340 kernel/bpf/syscall.c:4859
     __sys_bpf+0xa22/0xd90 kernel/bpf/syscall.c:6436
     __do_sys_bpf kernel/bpf/syscall.c:6537 [inline]
     __se_sys_bpf kernel/bpf/syscall.c:6534 [inline]
     __x64_sys_bpf+0xba/0xd0 kernel/bpf/syscall.c:6534
     do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
     do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94