--- fs/buffer.c.~1~	Sat Mar 24 17:30:13 2001
+++ fs/buffer.c	Sat Mar 24 18:16:55 2001
@@ -1629,12 +1629,14 @@
 	return 0;
 out:
 	bh = head;
+	block_start = 0;
 	do {
 		if (buffer_new(bh) && !buffer_uptodate(bh)) {
-			memset(bh->b_data, 0, bh->b_size);
+			memset(kaddr+block_start, 0, bh->b_size);
 			set_bit(BH_Uptodate, &bh->b_state);
 			mark_buffer_dirty(bh);
 		}
+		block_start += bh->b_size;
 		bh = bh->b_this_page;
 	} while (bh != head);
 	return err;