wWhen some apicAPICs are disabled and only one is left inby tunables, some cpu groups could end up
a caches group,empty. an inconsistent topology may be createdAn empty cpu group causes the system to panic because not all
and smp_topo_find does not find a group.functions handle them correctly. Additionally, This has beenit's wasted time to
fixed by ignoring nodes withhandle and inspect empty cpusets groups. additionally
the tree will flatened to lowest cache level over the
entire topology treeTherefore, just don't create them.