- - userprog project should mark read-only pages as actually read-only
- in the page table. Or, since this was consistently rated as the
- easiest project by the students, require them to do it.
+ - The semantics of the join system call should change so that it
+ only returns the exit code once.
+
+ - Mark read-only pages as actually read-only in the page table. Or,
+ since this was consistently rated as the easiest project by the
+ students, require them to do it.