I seem to be able to kill Zope *very* easily (with about 5 requests/sec) if that request does a lot of SQL activity. Now, this activity is not avoidable, but that load is pretty puny. Also, it doesn't just seem to die either - it seems to hang completely under some circumstances. I'm using Postgresql (makes no different whether it's 7.0 or the 7.1RC1) with ZPoPyDA and/or psycopg - they both suffer from the problem. What happens is that the child threads of ZServer die, leaving me with the top-level process (doing a waitpid on it's child) and the child (doing a select on the PCGI socket) How can I debug this? The machine is plenty fast enough to handle this load, and with static pages it's fine - just the ones that make SQL calls. Surely it should degrade gracefully, rather than just *dying*? Cheers, Phil