killall-ing a few things in order to make it stop. And alas, it does seem
to eventually cause kernel hangs with 2.6.32-16. (Committing now before ext4
eats my changes and brain.)
Needs love in the form of enhancements to support regexs, all the added
features in upcoming 2.3 release, etc.
Could also stand a bit of refactoring to make the ruby program not suck
up so much ram by writing out profiles as things go along rather than
generating a bunch of large objects and keeping them around.