--- linux-2.6.3-ck2/kernel/sched.c	2004-02-24 00:14:28.000000000 +1100
+++ linux-2.6.3-ck3pre/kernel/sched.c	2004-02-26 00:42:51.587726208 +1100
@@ -1770,6 +1770,7 @@ need_resched:
 
 	array = rq->active;
 	if (unlikely(!array->nr_active)) {
+array_swap:
 		/*
 		 * Switch the active and expired arrays.
 		 */
@@ -1815,6 +1816,14 @@ need_resched:
 			((next->static_prio > smt_curr->static_prio && 
 			(smt_curr->time_slice * SMT_SIBLING_IMPACT / 100) > 
 			task_timeslice(next)) || rt_task(smt_curr))) {
+				if (unlikely(rq->best_expired_prio < 
+					next->static_prio ))
+						/* 
+						 * Check we're not going to peg
+						 * higher priority tasks on the
+						 * expired array
+						 */
+						goto array_swap;
 				next = rq->idle;
 				goto switch_tasks;
 		}