For whatever reason XML::LibXSLT copies and pastes code and structure definitions from XML::LibXML and those definitions (and code) changed from 1.63 to 1.66. This means that you can (and I do) get corruption and crashes when using mixed versions. The current versions in fc9 are: perl-XML-LibXML-1.66-1.fc9.x86_64 perl-XML-LibXSLT-1.63-5.fc9.x86_64 perl-XML-LibXSLT should be upgraded to 1.66 and it should explicitly require the appropriate (i.e.the same) version of perl-XML-LibXML as long as this incestuous relationship exists. A sign that you have incompatible versions is this warning from perl. XML::LibXML: unregistering node, while no nodes have been registered? Another sign is random crashes.
perl-XML-LibXSLT-1.66-2.fc9 has been submitted as an update for Fedora 9. http://admin.fedoraproject.org/updates/perl-XML-LibXSLT-1.66-2.fc9
perl-XML-LibXSLT-1.66-2.fc9 has been pushed to the Fedora 9 stable repository. If problems still persist, please make note of it in this bug report.
perl-XML-LibXSLT-1.66-2.fc10 has been submitted as an update for Fedora 10. http://admin.fedoraproject.org/updates/perl-XML-LibXSLT-1.66-2.fc10
perl-XML-LibXSLT-1.66-2.fc10 has been pushed to the Fedora 10 stable repository. If problems still persist, please make note of it in this bug report.