From: "Daniel P. Berrange" <berrange(a)redhat.com&gt; Not all kernel builds have any entries under the location /sys/devices/system/cpu/cpu0/topology. We already cope with that being missing in some cases, but not all. Update the code which looks for thread_siblings to cope with the missing file Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com&gt; --- src/nodeinfo.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/nodeinfo.c b/src/nodeinfo.c index 415c2e5..72ab394 100644 --- a/src/nodeinfo.c +++ b/src/nodeinfo.c @@ -168,6 +168,12 @@ virNodeCountThreadSiblings(const char *dir, unsigned int cpu) pathfp = fopen(path, "r"); if (pathfp == NULL) { + /* If file doesn't exist, then pretend our only + * sibling is ourself */ + if (errno == ENOENT) { + VIR_FREE(path); + return 1; + } virReportSystemError(errno, _("cannot open %s"), path); VIR_FREE(path); return 0; -- 1.8.1.4