Index: src/topology-linux.c
===================================================================
--- src/topology-linux.c	(révision 3204)
+++ src/topology-linux.c	(révision 3205)
@@ -2237,7 +2237,8 @@
         unsigned int i;
         cpuset = hwloc_bitmap_alloc();
         for (i = 0; i < nthreads; ++i) {
-          hwloc_bitmap_set(cpuset, ntohl(threads[i]));
+          if (hwloc_bitmap_isset(topology->levels[0][0]->complete_cpuset, ntohl(threads[i])))
+            hwloc_bitmap_set(cpuset, ntohl(threads[i]));
         }
         free(threads);
       } else if ((unsigned int)-1 != reg) {