--- //depot/vendor/freebsd/src/sys/fs/ntfs/ntfs_subr.c	2008/01/24 12:35:50
+++ //depot/user/attilio/attilio_schedlock/fs/ntfs/ntfs_subr.c	2008/02/09 23:05:37
@@ -462,7 +462,7 @@
 		LIST_REMOVE(vap,va_list);
 		ntfs_freentvattr(vap);
 	}
-	mtx_unlock(&ip->i_interlock);
+	lockmgr(&ip->i_lock, LK_RELEASE | LK_INTERLOCK, &ip->i_interlock);
 	mtx_destroy(&ip->i_interlock);
 	lockdestroy(&ip->i_lock);
 	vrele(ip->i_devvp);