diff -Naurp linux-2.6.0-test3-bk8-numasched/kernel/sched.c linux-2.6.0-test3-bk8-numasched2/kernel/sched.c
--- linux-2.6.0-test3-bk8-numasched/kernel/sched.c	2003-08-22 12:03:30.000000000 -0500
+++ linux-2.6.0-test3-bk8-numasched2/kernel/sched.c	2003-08-22 12:14:09.000000000 -0500
@@ -1261,7 +1261,7 @@ static void rebalance_tick(runqueue_t *t
 
 	if (idle) {
 		while (node) {
-			if (!(j % node->idle_rebalance_tick))
+			if (!(j % node->idle_rebalance_tick) && (node->nr_cpus > 1))
 				balance_node(this_rq, idle, last_node, node);
 			last_node = node;
 			node = node->parent_node;
@@ -1269,7 +1269,7 @@ static void rebalance_tick(runqueue_t *t
 		return;
 	}
 	while (node) {
-		if (!(j % node->busy_rebalance_tick))
+		if (!(j % node->busy_rebalance_tick) && (node->nr_cpus > 1))
 			balance_node(this_rq, idle, last_node, node);
 		last_node = node;
 		node = node->parent_node;
@@ -1405,6 +1405,7 @@ asmlinkage void schedule(void)
 	runqueue_t *rq;
 	prio_array_t *array;
 	struct list_head *queue;
+	struct node_t *node;
 	int idx;
 
 	/*
@@ -1449,8 +1450,10 @@ need_resched:
 pick_next_task:
 	if (unlikely(!rq->nr_running)) {
 #ifdef CONFIG_SMP
-		if (rq->node)
-			load_balance(rq, 1, rq->node);
+		node = rq->node;
+		while (node->nr_cpus < 2 && node != top_node)
+			node = node->parent_node;
+		load_balance(rq, 1, node);
 		if (rq->nr_running)
 			goto pick_next_task;
 #endif