---
 kernel/sched.c |    2 ++
 1 file changed, 2 insertions(+)

Index: linux-2.6.21-rc3-mm2/kernel/sched.c
===================================================================
--- linux-2.6.21-rc3-mm2.orig/kernel/sched.c	2007-03-17 14:50:46.000000000 +1100
+++ linux-2.6.21-rc3-mm2/kernel/sched.c	2007-03-17 14:53:06.000000000 +1100
@@ -944,6 +944,8 @@ static unsigned int rr_quota(struct task
 {
 	int neg_nice = -TASK_NICE(p), rr = rr_interval;
 
+	if (neg_nice == -19)
+		return 1;
 	if (neg_nice > 6 && !rt_task(p)) {
 		rr *= neg_nice * neg_nice;
 		rr /= 40;