Hello, I am trying to get AF_XDP working with the i40e driver (Ethernet Controller X710 for 10GbE SFP+). After bind() with XDP_ZEROCOPY the kernel (machine) freezes hard. I have reproduced this on varying kernel versions between 5.1 and 5.3-rc3 with 5.3 kernels freezing also, but at a later stage. I tried replacing my XDP program with a trivial one that simply returns XDP_PASS but it didn't help. On the same system, the xdpsock sample does appear to work with the -z flag, however. Are there any current known issues that could be causing this? I will try to extract a minimal example that exercises the freeze. Thanks, Kal
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