As per this patch perhaps? :
Signed-off-by: Jesper Juhl <juhl-lkml@xxxxxx>
--- linux-2.6.12-rc2-mm3-orig/kernel/sched.c 2005-04-11 21:20:56.000000000 +0200
+++ linux-2.6.12-rc2-mm3/kernel/sched.c 2005-04-15 02:21:34.000000000 +0200
@@ -2697,9 +2697,10 @@ need_resched_nonpreemptible:
schedstat_inc(rq, sched_cnt);
now = sched_clock();
if (likely((long long)now - prev->timestamp < NS_MAX_SLEEP_AVG)) {
- run_time = now - prev->timestamp;
- if (unlikely((long long)now - prev->timestamp < 0))
+ if (unlikely(((long long)now - (long long)prev->timestamp) < 0))
run_time = 0;
+ else
+ run_time = now - prev->timestamp;
} else
run_time = NS_MAX_SLEEP_AVG;
@@ -2776,7 +2777,7 @@ go_idle:
if (!rt_task(next) && next->activated > 0) {
unsigned long long delta = now - next->timestamp;
- if (unlikely((long long)now - next->timestamp < 0))
+ if (unlikely(((long long)now - (long long)next->timestamp) < 0))
delta = 0;
if (next->activated == 1)