NUMA selftests in guest_memfd_test assumes that node 0 and 1 exist and have memory. However, nodes can be sparse or memoryless which would break this selftest.
xapic_ipi_test pass the nodemask size in bytes as maxnode to migrate_pages() but the syscall expect the number of bits plus one, so the kernel was only looking at node IDs 0-6. Tested on a 7.3-rc1, AMD EPYC 7713. Changes in V2: - Split from unbind race fix. (Sean) - Include <linux/bits.h> that defines BITS_PER_TYPE for self-containment. (Sashiko) - Link to V1: https://lore.kernel.org/kvm/[email protected] Signed-off-by: Shivank Garg <[email protected]> --- Shivank Garg (4): KVM: selftests: fix maxnode arguments in xapic_ipi_test KVM: selftests: use BITS_PER_TYPE() for NUMA masks KVM: selftests: add get_numa_mem_nodes() KVM: selftests: use allowed NUMA nodes in guest_memfd_test tools/testing/selftests/kvm/guest_memfd_test.c | 86 ++++++++++++++++-------- tools/testing/selftests/kvm/include/numaif.h | 53 ++------------- tools/testing/selftests/kvm/x86/xapic_ipi_test.c | 14 ++-- 3 files changed, 71 insertions(+), 82 deletions(-) --- base-commit: cee9395acd8043be0644b25c34bfa86623f2b935 change-id: 20260901-gmem-selftests-fix-2a5e94192f79 Best regards, -- Shivank Garg <[email protected]>
