RE: :Parser Expat cause segfaults
-Original Message- From: Oskari 'Okko' Ojala [mailto:[EMAIL PROTECTED]] Got a problem: About 250 of 1000 requests cause a segfault (11) when using XML::Parser::parse() under mod_perl. In FAQs it is stated that this is because of the bundled Expat in Apache. I've tried disabling Apache's Expat with --disable-rule=EXPAT, but it doesn't help. Have you found any workarounds or patches, or is the reason to my segfaults somewhere else? Platform: Red Hat 7.0 Apache 1.3.19 mod_perl 1.25 perl 5.6.0 expat 1.95.1 HTML::Mason 1.02 XML::Parser 2.30 There's (apparently) a known symbol conflict between XML::Parser 2.30 and Apache (which I only know because it happened to someone here just the other day). Drop down to 2.29 and it should work fine. Stephen.
RE: :Parser Expat cause segfaults
On Thu, 3 May 2001, Stephen Anderson wrote: Got a problem: About 250 of 1000 requests cause a segfault (11) when using XML::Parser::parse() under mod_perl. There's (apparently) a known symbol conflict between XML::Parser 2.30 and Apache (which I only know because it happened to someone here just the other day). Drop down to 2.29 and it should work fine. No success, I tried dropping the version down to 2.25, one by one. I also tried completely removing the expat from the apache source tree. The script still core dumps, but I found out that the same code as a mod_perl .cgi does not - it happens only when done under Mason. Someone reported to me that he has the same behaviour with Solaris 2.8 x86. He gets core dumps with XML::Parser::parse() under Mason, too, but not without it. I'll mail to Mason's developer about this. I'll let you know if the problem gets solved. Oskari Ojala
RE: :Parser Expat cause segfaults
On Thu, 3 May 2001, Oskari 'Okko' Ojala wrote: On Thu, 3 May 2001, Stephen Anderson wrote: Got a problem: About 250 of 1000 requests cause a segfault (11) when using XML::Parser::parse() under mod_perl. There's (apparently) a known symbol conflict between XML::Parser 2.30 and Apache (which I only know because it happened to someone here just the other day). Drop down to 2.29 and it should work fine. No success, I tried dropping the version down to 2.25, one by one. I also tried completely removing the expat from the apache source tree. The script still core dumps, but I found out that the same code as a mod_perl .cgi does not - it happens only when done under Mason. Make sure you comletely remove the old apache installation before your recompile. This has caught me once. -- Matt/ /||** Founder and CTO ** ** http://axkit.com/ ** //||** AxKit.com Ltd ** ** XML Application Serving ** // ||** http://axkit.org ** ** XSLT, XPathScript, XSP ** // \\| // ** mod_perl news and resources: http://take23.org ** \\// //\\ // \\
RE: :Parser Expat cause segfaults
On Thu, 3 May 2001, Oskari 'Okko' Ojala wrote: I'll let you know if the problem gets solved. Upgrading to Perl 5.6.1 seems to do the job. Thanks to all who helped! Oskari Ojala
RE: :Parser Expat cause segfaults
Reg this problem , Paul Kulchenko ( Soap::Lite wizard ) helped me with a solution given below, back last Fall . I used it with immediate success , and I hope it is applicable: ** SOLUTION ** If using SOAP::Lite (or XML::Parser::Expat) in combination with mod_perl causes random segmentation faults in httpd processes try to configure Apache with: RULE_EXPAT=no ** Sri Lakshmanan Market Data Services Koch Petroleum Group Tel (316) 828-3820 Fax (316) 828-4151 [EMAIL PROTECTED] -Original Message- From: Matt Sergeant [SMTP:[EMAIL PROTECTED]] Sent: Thursday,May 03,2001 3:27 AM To: Oskari 'Okko' Ojala Cc: [EMAIL PROTECTED] Subject: RE: :Parser Expat cause segfaults On Thu, 3 May 2001, Oskari 'Okko' Ojala wrote: On Thu, 3 May 2001, Stephen Anderson wrote: Got a problem: About 250 of 1000 requests cause a segfault (11) when using XML::Parser::parse() under mod_perl. There's (apparently) a known symbol conflict between XML::Parser 2.30 and Apache (which I only know because it happened to someone here just the other day). Drop down to 2.29 and it should work fine. No success, I tried dropping the version down to 2.25, one by one. I also tried completely removing the expat from the apache source tree. The script still core dumps, but I found out that the same code as a mod_perl .cgi does not - it happens only when done under Mason. Make sure you comletely remove the old apache installation before your recompile. This has caught me once. -- Matt/ /||** Founder and CTO ** ** http://axkit.com/ ** //||** AxKit.com Ltd ** ** XML Application Serving ** // ||** http://axkit.org ** ** XSLT, XPathScript, XSP ** // \\| // ** mod_perl news and resources: http://take23.org ** \\// //\\ // \\
