2.5. Segmentation fault or other core dump.
If this happens when you run the Interchange test or server, it is always Perl that has a problem. Not sometimes, always. A proper Perl should never have a segmentation violation, period. And it should not dump core (unless you passed it a -u option somehow).
You will need to either update Perl or report the bug to the proper personnel. Depending on your situation and technical ability, this may be your system admin, ISP, or the Perl porters.