Re: [PATCH v2 2/2] selftests/bpf: Select NUMA_NO_NODE to create map

On 1/30/25 11:05 PM, Saket Kumar Bhaskar wrote:

On powerpc, a CPU does not necessarily originate from NUMA node 0. This contrasts with architectures like x86, where CPU 0 is not hot-pluggable, making NUMA node 0 a consistently valid node. This discrepancy can lead to failures when creating a map on NUMA node 0, which is initialized by default, if no CPUs are allocated from NUMA node 0.

This patch fixes the issue by setting NUMA_NO_NODE (-1) for map creation for this selftest.

Fixes: 96eabe7a40aa ("bpf: Allow selecting numa node during map creation") Signed-off-by: Saket Kumar Bhaskar skb99@linux.ibm.com

Acked-by: Yonghong Song yonghong.song@linux.dev