On Thu, Sep 26, 2019 at 12:05 AM Július Milan <Julius.Milan@xxxxxxxxxxxxx> wrote: > > Hi folks > > I am stuck with proper cleanup of AF_XDP socket. Not sure if I am doing something wrong or is it a bug. > I create xdp socket, then I remove it and then I am trying to create it again in the same process but getting -EBUSY from bind syscall > of xsk_socket__create. > > My cleanup looks like this: > xsk_socket__delete(); > xsk_umem__delete(); > bpf_set_link_xdp_fd(ifindex, -1, opt_xdp_flags); Hi Julius, I think that's all you need. > > Attaching simple test case. It’s just reduced and slightly modified xdpsock_user.c form kernel samples. > Tested on kernel v5.3 4d856f72c10ecb060868ed10ff1b1453943fc6c8 and related libbpf. I comment in another email, let me know if you do not see it. William > > Thanks a lot > Julius >
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