* Some confusion--do we really get overlapping ro/rw segment in normal
link? Student example seemed to show that we don't.
-* Add qsort(), bsearch() implementations to kernel.
+* Finish writing the tour.
+
+* Come up with a way for us to release some of the tests.
+
+* userprog project should mark read-only pages as actually read-only
+ in the page table