This happened to me a while back as well (troubles writing mod_soap clients).

The problem is that Apache usually ships with expat-lite, which is incompatible with XML::Parser. (source)

In reply to Re: SOAP::Lite under mod_perl causes segmentation fault - how do I fix this? by jeffa
in thread SOAP::Lite under mod_perl causes segmentation fault - how do I fix this? by cLive ;-)

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