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From Gerald Richter - ECOS Technology <gerald.rich...@ecos.de>
Subject AW: embperl and SSI
Date Fri, 18 Jul 2014 13:09:16 GMT
Hi,

could you please compile Embperl with Debuginformation (run perl Makefile.PL debug &&
make install) and then sent me the backtrace again.

Thanks

Gerald


-----Ursprüngliche Nachricht-----
Von: Edward Guldemond [mailto:edward@microdecisions.com] 
Gesendet: Freitag, 11. Juli 2014 17:28
An: richter@ecos.de
Betreff: RE: embperl and SSI

Installing Embperl 2.5.0 does not fix the problem.

-- 
Edward Guldemond
Programmer / Analyst
MicroDecisions, Inc. 
Tel:  407-843-1550 x7533
Fax: 407-843-1660
E-mail: edward@microdecisions.com
Website: www.microbase.com


> -----Original Message-----
> From: Gerald Richter [mailto:gerald@weis-richter.de] On Behalf Of
> richter@ecos.de
> Sent: Friday, July 11, 2014 5:34 AM
> To: Edward Guldemond; embperl@perl.apache.org
> Subject: AW: embperl and SSI
> 
> Hi,
> 
> can you first try to update to Embperl 2.5.0. There are some fixes in,
> that might solve your problem.
> 
> Gerald
> 
> 
> > -----Ursprüngliche Nachricht-----
> > Von: Edward Guldemond [mailto:edward@microdecisions.com]
> > Gesendet: Donnerstag, 10. Juli 2014 17:45
> > An: embperl@perl.apache.org
> > Betreff: embperl and SSI
> >
> > Hello,
> >
> > I get a segfault on some page loads when using Embperl 2.4.0 on Apache
> > 2.2.15 on a CentOS 6.4 server.  The page causing the problem is using
> > both
> SSI
> > and Embperl.  When the page is requested, either no data is returned
> > or partial data is returned.  When no data is returned the following
> > message appears in the Apache logs:
> >     [Wed Jul 09 14:05:48 2014] [notice] child pid 29812 exit signal
> Segmentation
> > fault (11) When partial data is returned no such message appears in
> > the
> logs.
> >
> > Apache is configured to serve the affected file as follows:
> >         <Files *.html>
> >                 SetHandler  perl-script
> >                 PerlHandler Embperl
> >                 Options     +ExecCGI +Includes
> >                 XBitHack Full
> >         </files>
> >
> > There are other files that are served with no problem.  They all use
> > SSI
> and
> > Embperl, and are all significantly smaller than this page - less than
> 8K.
> The
> > affected page was trimmed down to 8100 bytes and served without error.
> > Disabling SSI for the file by unsetting the execute bit allows the
> > page to
> be
> > served without errors (but then the includes do not function).  When
> > trimmed to 8101 the above errors started.
> >
> > The following backtrace was observed from Apache when the segfault
> > occurs:
> >
> > Program received signal SIGSEGV, Segmentation fault.
> > 0x00007fffefb07a98 in EMBPERL2_Node_toString2 (r=0x7ffff8532888,
> > pDomTree=0x7ffff84ca998, xNode=<value optimized out>,
> > pRepeatLevel=0x7fffffffdc2e) at epdom.c:3683
> > 3683        tNodeData * pNode = Node_self (pDomTree, xNode) ;
> > (gdb) bt
> > #0  0x00007fffefb07a98 in EMBPERL2_Node_toString2 (r=0x7ffff8532888,
> > pDomTree=0x7ffff84ca998, xNode=<value optimized out>,
> > pRepeatLevel=0x7fffffffdc2e) at epdom.c:3683
> > #1  0x00007fffefb07be4 in EMBPERL2_Node_toString2 (r=0x7ffff8532888,
> > pDomTree=<value optimized out>, xNode=<value optimized out>,
> > pRepeatLevel=0x7fffffffdc7c) at epdom.c:3894
> > #2  0x00007fffefb08413 in EMBPERL2_Node_toString (r=<value optimized
> > out>, pDomTree=<value optimized out>, xNode=<value optimized out>,
> > nRepeatLevel=0) at epdom.c:3994
> > #3  0x00007fffefaeb65b in OutputToFile (r=0x7ffff8532888) at
> > epmain.c:1123
> > #4  0x00007fffefaee478 in EndOutput (r=0x7ffff8532888) at
> > epmain.c:1190
> > #5  embperl_RunRequest (r=0x7ffff8532888) at epmain.c:1401
> > #6  0x00007fffefaee9aa in embperl_ExecuteRequest
> > (my_perl=0x7ffff8260bf0, pApacheReqSV=<value optimized out>,
> > pPerlParam=0x0) at epmain.c:1486
> > #7  0x00007fffefaeaae7 in XS_Embperl__Req_ExecuteRequest
> > (my_perl=0x7ffff8260bf0, cv=<value optimized out>) at Embperl.xs:136
> > #8  0x00007ffff1891815 in Perl_pp_entersub () from
> > /usr/lib64/perl5/CORE/libperl.so
> > #9  0x00007ffff188fb06 in Perl_runops_standard () from
> > /usr/lib64/perl5/CORE/libperl.so
> > #10 0x00007ffff18375df in Perl_call_sv () from
> > /usr/lib64/perl5/CORE/libperl.so
> > #11 0x00007ffff1b6e0be in modperl_callback () from
> > /etc/httpd/modules/mod_perl.so
> > #12 0x00007ffff1b6e80b in modperl_callback_run_handlers () from
> > /etc/httpd/modules/mod_perl.so
> > #13 0x00007ffff1b6ee0f in modperl_callback_per_dir () from
> > /etc/httpd/modules/mod_perl.so
> > #14 0x00007ffff1b6875f in ?? () from /etc/httpd/modules/mod_perl.so
> > #15 0x00007ffff1b68913 in modperl_response_handler_cgi () from
> > /etc/httpd/modules/mod_perl.so
> > #16 0x00007ffff7fd6bb0 in ap_run_handler (r=0x7ffff85298c8) at
> > /usr/src/debug/httpd-2.2.15/server/config.c:158
> > #17 0x00007ffff7fda46e in ap_invoke_handler (r=0x7ffff85298c8) at
> > /usr/src/debug/httpd-2.2.15/server/config.c:376
> > #18 0x00007ffff7fe5b30 in ap_process_request (r=0x7ffff85298c8) at
> > /usr/src/debug/httpd-2.2.15/modules/http/http_request.c:282
> > #19 0x00007ffff7fe29a8 in ap_process_http_connection
> > (c=0x7ffff851da58) at
> > /usr/src/debug/httpd-2.2.15/modules/http/http_core.c:190
> > #20 0x00007ffff7fde6b8 in ap_run_process_connection (c=0x7ffff851da58)
> > at
> > /usr/src/debug/httpd-2.2.15/server/connection.c:43
> > #21 0x00007ffff7fea977 in child_main (child_num_arg=<value optimized
> > out>) at /usr/src/debug/httpd-2.2.15/server/mpm/prefork/prefork.c:667
> > #22 0x00007ffff7feac46 in make_child (s=0x7ffff8212860, slot=0) at
> > /usr/src/debug/httpd-2.2.15/server/mpm/prefork/prefork.c:707
> > #23 0x00007ffff7feb293 in ap_mpm_run (_pconf=<value optimized out>,
> > plog=<value optimized out>, s=<value optimized out>) at
> > /usr/src/debug/httpd-2.2.15/server/mpm/prefork/prefork.c:983
> > #24 0x00007ffff7fc2900 in main (argc=2, argv=0x7fffffffe6d8) at
> > /usr/src/debug/httpd-2.2.15/server/main.c:760
> >
> > What's the next step to take to figure out the root cause of this issue?
> Can
> > SSI and Embperl be combined, and if so, is this done correctly with
> > the
> above
> > configuration?
> >
> > --
> > Edward Guldemond
> > Programmer / Analyst
> > MicroDecisions, Inc.
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: embperl-unsubscribe@perl.apache.org
> > For additional commands, e-mail: embperl-help@perl.apache.org
> 



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