diff -Naur orig/fs/super.c edited/fs/super.c
--- orig/fs/super.c	2004-06-16 07:20:03.000000000 +0200
+++ edited/fs/super.c	2004-06-19 19:58:19.895637880 +0200
@@ -1569,7 +1569,10 @@
 		ext3_count_free_inodes(sb));
 	percpu_counter_mod(&sbi->s_dirs_counter,
 		ext3_count_dirs(sb));
-
+	if (!(sb->s_flags & MS_RDONLY)) {
+		mark_buffer_dirty(sbi->s_sbh);
+		sb->s_dirt = 1;
+	}
 	return 0;
 
 failed_mount3:
@@ -1841,7 +1844,6 @@
 	EXT3_SET_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL);
 
 	es->s_journal_inum = cpu_to_le32(journal_inum);
-	sb->s_dirt = 1;
 
 	/* Make sure we flush the recovery flag to disk. */
 	ext3_commit_super(sb, es, 1);