Re: [PATCH net-next v3] selftests: net: reuseport_bpf_numa: consider cpuless numa node
Simon Horman <[email protected]>
| Newsgroups | org.kernel.vger.linux-kselftest,org.kernel.vger.bpf,org.kernel.vger.linux-kernel,org.kernel.vger.netdev |
|---|---|
| Message-ID | <[email protected]> |
On Fri, Aug 07, 2026 at 08:24:36AM +0800, Feng Tang wrote: > reuseport_bpf_numa case failed when testing on a platform with CXL > memory: > > #./reuseport_bpf_numa > ---- IPv4 UDP ---- > send node 0, receive socket 0 > ./reuseport_bpf_numa: failed to pin to node: Invalid argument > > The root cause is that the platform has 2 numa nodes: node 0 has > both cpu and memory, while node 1 is a CXL node which only has > memory, and caused numa_run_on_node() to fail. > > Add sanity check to skip cpuless numa node for the numa binding test. > > Signed-off-by: Feng Tang <[email protected]> > --- > Changelog: > since v2: > * fix spelling issue (Jakub, Sashiko) > * remove unnecessary 'inline' for is_cpuless_node() (Jakub) > > since v1: > * address comments from Sashiko bot > https://lore.kernel.org/all/[email protected]/ > * lift the cpuless node check out of send_from_node() Reviewed-by: Simon Horman <[email protected]>