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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (INFRA-6357) xsltproc crash on people.a.o after FreeBSD 9.1 upgrade
Date Thu, 06 Jun 2013 15:03:20 GMT

    [ https://issues.apache.org/jira/browse/INFRA-6357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13677078#comment-13677078
] 

Sebb commented on INFRA-6357:
-----------------------------

It's just occurred to me that it ought to be possible to add a temporary shell wrapper around
xsltproc which takes care of the core dump and the exit code for the apsite builds.

I'll give that a try.
                
> xsltproc crash on people.a.o after FreeBSD 9.1 upgrade
> ------------------------------------------------------
>
>                 Key: INFRA-6357
>                 URL: https://issues.apache.org/jira/browse/INFRA-6357
>             Project: Infrastructure
>          Issue Type: Bug
>      Security Level: public(Regular issues) 
>          Components: Other/Misc
>         Environment: people.apache.org FreeBSD 9.1, libxml2 2.8.0 and libxslt 1.1.28
from ports.
>            Reporter: Rainer Jung
>
> apsite build jobs crash xsltproc after upgrade of FreeBSD to 9.1 on people.apache.org.
> I was able to strip this down to a simple test case which directly runs xsltproc.
> gdb shows we are always crashing in
> #0  0x00000008036ba21b in pthread_mutex_lock () from /lib/libthr.so.3
> #1  0x000000080139c635 in xmlRMutexLock () from /usr/local/lib/libxml2.so.5
> #2  0x0000000801397a6c in xmlCatalogCleanup () from /usr/local/lib/libxml2.so.5
> #3  0x000000080133353a in xmlCleanupParser () from /usr/local/lib/libxml2.so.5
> This happens at the end of the xsltproc run, when all the work is already done, but xmlCleanupParser
is called.
> The same test case shows no problem on eos running FreeBSD 9.0.
> It seems to be a threading and/or build issue. The libxml2 ports contains a patch to
configure, that effectively removed -D_REENTRANT for FreeBSD from CPFLAGS. This patch is reported
to be problematic for other users as well. Beware that the same patch was already part of
FreeBSD 9.0, but there the version of libxml2 was 2.7.8, not 2.8.0.
> I'm currently running out of time, so can't yet proceed to investigate.
> Possible workaround: ignore crash in any script using xsltproc, because the actual processing
has finished at the time of crash (hoping output was not buffered).
> Possible further investigations:
> - check whether ports has a working libxml2 2.9.0
> - build 2.8. without the configure patch for THREAD_CFLAGS

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