-* userprog should mention that keyboard over serial doesn't work
-
* Get rid of names for synch primitives? They increase the size of
each one by 16 bytes and are probably not that useful.
Alternatively make the names pointers?
-* Write, test user programs.
- - addrspace_load() should return thread's esp.
- - thread_execute() shouldn't panic on failure (!).
-
-* Figure out PD/PT management API.
- - We should document what's in mmu.h.
- - pagedir.[ch] is undocumented.
+* pagedir.[ch] needs comments.
* Write, test VM.