Index: linux-2.6/kernel/sched.c
===================================================================
--- linux-2.6.orig/kernel/sched.c	2005-06-08 00:01:53.000000000 +1000
+++ linux-2.6/kernel/sched.c	2005-06-08 00:02:47.000000000 +1000
@@ -1113,6 +1113,7 @@ static int sched_balance_self(int cpu, i
 		cpumask_t span;
 		struct sched_group *group;
 		int new_cpu;
+		int weight;
 
 		span = sd->span;
 		group = find_idlest_group(sd, t, cpu);
@@ -1127,8 +1128,9 @@ static int sched_balance_self(int cpu, i
 		cpu = new_cpu;
 nextlevel:
 		sd = NULL;
+		weight = cpus_weight(span);
 		for_each_domain(cpu, tmp) {
-			if (cpus_subset(span, tmp->span))
+			if (weight <= cpus_weight(tmp->span))
 				break;
 			if (tmp->flags & flag)
 				sd = tmp;