--- linux-2.5/drivers/md/raid6main.c.orig	2004-01-09 18:29:00.000000000 -0800
+++ linux-2.5/drivers/md/raid6main.c	2004-01-18 23:04:04.000000000 -0800
@@ -1557,7 +1557,14 @@
 
 	first_sector = raid6_compute_sector(stripe*data_disks*sectors_per_chunk
 		+ chunk_offset, raid_disks, data_disks, &dd_idx, &pd_idx, conf);
-	sh = get_active_stripe(conf, sector_nr, pd_idx, 0);
+	sh = get_active_stripe(conf, sector_nr, pd_idx, 1);
+	if (sh == NULL) {
+		sh = get_active_stripe(conf, sector_nr, pd_idx, 0);
+		/* make sure we don't swamp the stripe cache if someone else
+		 * is trying to get access
+		 */
+		yield();
+	}
 	spin_lock(&sh->lock);
 	set_bit(STRIPE_SYNCING, &sh->state);
 	clear_bit(STRIPE_INSYNC, &sh->state);