diff -Naur linux-2.6.17.11/drivers/scsi/3w-9xxx.c linux-2.6.17.12/drivers/scsi/3w-9xxx.c
--- linux-2.6.17.11/drivers/scsi/3w-9xxx.c	2006-08-23 14:16:33.000000000 -0700
+++ linux-2.6.17.12/drivers/scsi/3w-9xxx.c	2006-08-28 17:48:29.000000000 -0700
@@ -943,6 +943,7 @@
 		before = jiffies;
 		while ((response_que_value & TW_9550SX_DRAIN_COMPLETED) != TW_9550SX_DRAIN_COMPLETED) {
 			response_que_value = readl(TW_RESPONSE_QUEUE_REG_ADDR_LARGE(tw_dev));
+			msleep(1);
 			if (time_after(jiffies, before + HZ * 30))
 				goto out;
 		}