I was going through the NetBSD's project page(
http://wiki.netbsd.org/projects/). I would like to work on
Convert kernel printf() to aprint_*() or log() project. This project is not listed under completed project hence I'm hoping that this project is still available. If yes, I would like to work on it. Please let me know your thoughts regarding this. Once I get confirmation from your side I can start working on it immediately.