--- linux-2.6.0-test1-mm1/kernel/sched.c	2003-07-17 11:24:54.000000000 +1000
+++ linux-2.6.0-testck1/kernel/sched.c	2003-07-17 11:59:01.000000000 +1000
@@ -78,7 +78,7 @@
 #define STARVATION_LIMIT	(10*HZ)
 #define SLEEP_BUFFER		(HZ/100)
 #define NODE_THRESHOLD		125
-#define MAX_BONUS		(40 * PRIO_BONUS_RATIO / 100)
+#define MAX_BONUS		(MAX_USER_PRIO * PRIO_BONUS_RATIO / 100)
 
 /*
  * If a task is 'interactive' then we reinsert it in the active
@@ -390,8 +390,6 @@ static inline void activate_task(task_t 
 	long sleep_time = jiffies - p->last_run - 1;
 
 	if (sleep_time > 0) {
-		unsigned long runtime = jiffies - p->avg_start;
-
 		/*
 		 * Tasks that sleep a long time are categorised as idle and
 		 * will get just under interactive status with a small runtime
@@ -402,6 +400,11 @@ static inline void activate_task(task_t 
 			p->sleep_avg = MIN_SLEEP_AVG * (MAX_BONUS - INTERACTIVE_DELTA - 2) /
 				MAX_BONUS;
 		} else {
+			unsigned long runtime = jiffies - p->avg_start;
+
+			if (runtime > MAX_SLEEP_AVG)
+				runtime = MAX_SLEEP_AVG;
+
 			/*
 			 * This code gives a bonus to interactive tasks.
 			 *