-* malloc() needs to block until memory is available?
+* Add stats.
-* Should we use a task gate for hardware interrupts? Then we could
- dedicate a stack to interrupt handling and not worry about interrupt
- usage of kernel stacks.
+* Write, test VM.
+
+* Handling of read-only pages?
+
+* Test list, hash ADTs.
+ - Finish comments for hash.[ch].
+
+* References/bibliography.
+ - Userprog refers to [SysV-i386].
+
+* Write "tour".
+
+----------------------------------------------------------------------
+
+* Cygwin support:
+ - PE linker scripts? Doesn't seem to support ELF ones.
+ - .S files need _ prefixes on symbols.
* Filesystem dumps should include filehdrs?