#!/bin/perl use XML::LibXML; use XML::LibXSLT; my $parser = XML::LibXML->new(); my $xslt = XML::LibXSLT->new(); my $source = $parser->parse_string(<<'EOT'); <hello> <msg>Hello LibXSLT</msg> </hello> EOT my $styledoc = $parser->parse_string(<<'EOT'); <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="/"> <xsl:value-of select="hello/msg"/> </xsl:template> </xsl:stylesheet> EOT my $stylesheet = $xslt->parse_stylesheet($styledoc); # up to this line, LibXSLT does not cause Perl to core dump my $result = $stylesheet->transform($source); print STDOUT "transformed document " . $result->toString(); # Hello LibXSLT appears in the standard output # however, once transform() has been called, Perl will core dump when # trying to dispose of $parser and $xslt after exiting this scope exit();

gdb /bin/perl core bt #0 0xfef8857c in xmlDictOwns (dict=0x134440, str=0x138610 "Hello LibXSLT") at dict.c:872 #1 0xfeed36fc in xmlFreeNodeList (cur=0x139718) at tree.c:3397 #2 0xfeed0b74 in xmlFreeDoc (cur=0x139400) at tree.c:1224 #3 0xfee0bab8 in PmmFreeNode () from {perl_install_path}/perl-5.8.6/lib/site_perl/5.8.6/sun4-solaris/auto/XML/LibXML/LibXML.so #4 0xfee0bc78 in PmmREFCNT_dec () from {perl_install_path}/perl-5.8.6/lib/site_perl/5.8.6/sun4-solaris/auto/XML/LibXML/LibXML.so #5 0xfeded1b0 in XS_XML__LibXML__Node_DESTROY () from {perl_install_path}/perl-5.8.6/lib/site_perl/5.8.6/sun4-solaris/auto/XML/LibXML/LibXML.so #6 0x00089d20 in Perl_pp_entersub () #7 0x00028f8c in S_call_body () #8 0x00028cac in Perl_call_sv () #9 0x00092eb0 in Perl_sv_clear () #10 0x000936ac in Perl_sv_free () #11 0x00097800 in Perl_sv_unref_flags () #12 0x0009168c in Perl_sv_force_normal_flags () #13 0x000ac5d8 in Perl_leave_scope () #14 0x000aa144 in Perl_pop_scope () #15 0x0002cec4 in S_my_exit_jump () #16 0x0002cc64 in Perl_my_exit () #17 0x000b4af4 in Perl_pp_exit () #18 0x00081928 in Perl_runops_standard () #19 0x000284cc in S_run_body () #20 0x000280e8 in perl_run () #21 0x00024ce0 in main ()