didn't notice memory leakage, but i also wasn't looking for it. The app which i wrote tends to goble up a lot of memory anyhow, and it doesn't run for a long time in a row. So even if there are some circular references it doesn't matter so much, as it won't be left running for a long time.

Still a valid question, even though i didn't have reason to look for an answer yet. (Didn't even know that problem existed).

Sorry i couldn't help you. In case you find an answer for the problem you mentioned, it would be nice if you could post it here.

UPDATE: I once had a problem with cyclic refrences, found the problem and solved it using Devel::Cycle, in case that helps you.