Error message reports that the guest has '0' NUMA nodes configured when trying to attach a memory device to a guest with no NUMA nodes. This may be a little misleading because '0' can also be node's id. A more friendly way is to directly report that the guest has no NUMA nodes. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2142519 Signed-off-by: Kristina Hanicova <khanicov(a)redhat.com&gt; --- src/conf/domain_validate.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/conf/domain_validate.c b/src/conf/domain_validate.c index 5bc7ea10aa..95b8d9b419 100644 --- a/src/conf/domain_validate.c +++ b/src/conf/domain_validate.c @@ -2257,6 +2257,12 @@ virDomainMemoryDefValidate(const virDomainMemoryDef *mem, if (mem->targetNode != -1) { const size_t nodeCount = virDomainNumaGetNodeCount(def->numa); + if (nodeCount == 0) { + virReportError(VIR_ERR_XML_DETAIL, "%s", + _("can't add memory backend as guest has no NUMA nodes configured")); + return -1; + } + if (mem->targetNode >= nodeCount) { virReportError(VIR_ERR_XML_DETAIL, _("can't add memory backend for guest node '%d' as the guest has only '%zu' NUMA nodes configured"), -- 2.38.1