RE: filling addr.dat: that is one of the denial-of-service attacks fixed by the 0.6 release.
I am running both 0.6.0 release and the master from Apr-03 (which is shortly afterwards). Yet I get these addr.dat errors. There must be another bug to fix in addr.dat
Today I got two other crashes, one of them in gdb. I will post it in a separate post, so that my point about addr.dat doesnt get drowned.