Dario -
I had faced similar problems ... try the following thread for help http://aspn.activestate.com/ASPN/Mail/Message/zope-Dev/940742 on how to trap the error on a running process. For linux, you need the command strace ... here is one url http://www.pugcentral.org/howto/truss.htm Once you have the core file, you should invoke gdb like this ... gdb program core where program is the path to the python executable and core is the core file. Then, type "info threads" to see which thread and where the problem occured in zope/python. - j _______________________________________________ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )