I can't find the issue at the moment, and tpj.com seems to be down, but I think Siman Cozens did an article a while back on this. In fact he had even started some of it. Does anyone happen to know which issue it was?
Simon Cozens wrote about Perlix in TPJ #18. The link seems to be down, however. Sourceforge shows another Perlix, though it looks to be a separate project. Simon's Perlix was to create a Perl user-space (using Perl Power Tools and the Perl Shell on top of the Linux kernel). The Perlix on sourceforge seems to be an actual Perl kernel, though it doesn't have any files available yet.