--- /opt/kernel/linux-2.5.1-pre10/drivers/scsi/scsi_merge.c	Tue Dec 11 13:30:36 2001
+++ drivers/scsi/scsi_merge.c	Wed Dec 12 03:59:58 2001
@@ -307,7 +307,7 @@
 	}
 
 #ifdef DMA_CHUNK_SIZE
-	if (MERGEABLE_BUFFERS(bio, req->bio))
+	if (MERGEABLE_BUFFERS(req->biotail, bio))
 		return scsi_new_mergeable(q, req, bio);
 #endif