diff -urNp page/fs/buffer.c 2.4.20pre5aa1-old/fs/buffer.c
--- page/fs/buffer.c	Wed Sep  4 04:24:23 2002
+++ 2.4.20pre5aa1-old/fs/buffer.c	Wed Sep  4 04:24:49 2002
@@ -2109,6 +2109,7 @@ int generic_direct_IO(int rw, struct ino
 		bh.b_state = 0;
 		bh.b_dev = inode->i_dev;
 		bh.b_size = blocksize;
+		bh.b_page = NULL;
 
 		retval = get_block(inode, blocknr, &bh, rw == READ ? 0 : 1);
 		if (retval) {