Message 31294 - Python tracker
I've been bitten by this too: close_fds turns my a trivial little monitoring daemon (that reads the output of another status-reporting command once a second or so) into a monster that hogs the entire server. As H. von Bargen says, this kind of degradation should at least come with a warning (or, better, be fixed by C/Pyrex-ifying close_fds).