I've got a problem similar to Alexis Roda, described here: http://mail.zope.org/pipermail/zope/2003-January/130237.html This is Zope 2.7.0 on a Linux machine. An added bonus is that I am actually using ZEO, and one of the ZEO clients is having this problem, but the other is not. I have tried to "Debug a Spinning Zope", but the process is not actually using any CPU, and I can't identify any "problems" in gdb. Attempts to PyRun_SimpleString in gdb fail with: """ The program being debugged was signaled while in a function called from GDB. Evaluation of the expression containing the function (malloc) will be abandoned. """ Anyone have any ideas on what I can try next? The ZODB is freshly packed. Does ZEO cache stuff anywhere? Maybe that cache is spoiled on zeoclient2? Thanks in advance, John Ziniti