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we have problem with many JOOMLA sites on our servers.

Error is only Segm. fault 11. In browser is "no data". After debug trace I have this.

¨Core was generated by `/usr/sbin/httpd'.
Program terminated with signal 11, Segmentation fault.
#0  0x00007f6985296721 in tsrm_realpath_r (path=0x7ffff2bab270 "/www/", start=1, len=53, ll=0x7ffff2bab26c, t=0x7ffff2bab260,
    use_realpath=1, is_dir=1, link_is_dir=0x0) at /usr/src/debug/php-5.3.3/TSRM/tsrm_virtual_cwd.c:609
609     {


(gdb)  print (char *)executor_globals.active_op_array->function_name
$2 = 0x7f699711e3d0 "getMetadata"
(gdb) print (char *)executor_globals.active_op_array->filename
$3 = 0x7f6997088da8 "/www/"

Can you help me please, where can be problem?

Thank you Pavel

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Is debug mode enabled in Joomla? – Nathan C Jan 23 '14 at 14:21
Yes, but without effect. Browser show "no data response". Error log with E_ALL contain Segm. fault only. – Pavel Jan 24 '14 at 12:01
One new - I found this [Fri Jan 24 13:00:43 2014] [error] [client ] PHP Warning: is_file(): open_basedir restriction in effect. File(/tmp/minify_2be10eb8b772bfd4bd1468d906a5c3fa.gz) is not within the allowed path(s): (/www/autoprep:/usr/share/pear:/usr/share/php:/www/‌​5/‌​r/www/web2/ in /www/‌​b/Minify/Cache/‌​p on line 33, referer: ........but clients have acces only to private tmp in document root dir. – Pavel Jan 24 '14 at 12:19
Fix tmp path of minify is not solution for this problem :( – Pavel Jan 24 '14 at 12:37
What happens if you disable debug mode? – Nathan C Jan 24 '14 at 15:08
up vote 0 down vote accepted

Ok, I have it!

So, problem is with Piwik. As is described here:

In one version was used libxml_disable_entity_loader() - this fce. is not thread safe. So this do faults of JOOMLA sites.

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