Well,
Dokuwiki is a simple (at least I think it is) wiki that relies on flat files (so no db dependencies).
I have no clue what it is doing - am not a php programmer. I load the url in my browser (on another machine) and point it to the dokuwiki installation (brand new fresh install) and the front page loads, very slowly and then freezes before it is complete.
It did work correctly in NetBSD v3.0 and v3.1. I can't recall off the top of my head what the exact version numbers for apache2 and php5 were, but they would have been the latest from pkgsrc.
Any ideas on tracing the problems from the server itself?