Kernel crashes with AF_XDP on localhost interface
Vladimír Čunát <[email protected]>
| Newsgroups | org.kernel.vger.xdp-newbies |
|---|---|
| Message-ID | <[email protected]> |
Hello. On some machines we're getting into problems when using AF_XDP on the localhost interface. For example a repeated kernel panic on 5.9.1.arch1-1: https://imgur.com/a/1APC10C The code seems to work even on localhost on another machine (some 5.4 kernel, different distro) and previous testing on more realistic cases also didn't have this problem (i40e and ixgbe, different kernels again)... though that's no _real_ proof that that our code doesn't do something "weird". Any suggestion what to do next? (We certainly don't have resources to understand the kernel-side code.) BTW, AF_XDP seems to work out great for our Knot DNS https://www.knot-dns.cz/benchmark/ (even in .cz TLD production) and we're now finishing the same for Knot Resolver. --Vladimir