diff --git a/sys/pdp/machdep.c b/sys/pdp/machdep.c
index 3cff738..7c81698 100644
--- a/sys/pdp/machdep.c
+++ b/sys/pdp/machdep.c
@@ -271,7 +271,7 @@ mapfree(bp)
 	}
 }
 
-#define	SOFUB_DEBUG
+#undef	SOFUB_DEBUG
 
 #ifdef	SOFUB_MAP
 /*
@@ -330,8 +330,8 @@ register struct buf *bp;
 		return(1);	/* okay, < 256kb	*/
 	else if	(bp->b_bcount > sofub_size)
 		{
-		log(LOG_ERR, "I/O >10kb on %d,%d\n",
-			major(bp->b_dev),minor(bp->b_dev));
+		log(LOG_ERR, "I/O >10kb on %d,%d count=%d\n",
+			major(bp->b_dev),minor(bp->b_dev), bp->b_bcount);
 		bp->b_flags |= B_ERROR;
 		bp->b_error = EFAULT;
 		iodone(bp);
diff --git a/sys/pdp/machdep2.c b/sys/pdp/machdep2.c
index 2c24829..176828f 100644
--- a/sys/pdp/machdep2.c
+++ b/sys/pdp/machdep2.c
@@ -161,7 +161,7 @@ startup()
 */
 
 #ifdef	SOFUB_MAP
-#define	B	(10240+64)
+#define	B	(1024*60+64)
 
 	sofub_size = (unsigned) B;