PHP crashes on F21 with roundcube

Reindl Harald h.reindl at thelounge.net
Mon Apr 27 14:02:02 UTC 2015


Am 27.04.2015 um 15:51 schrieb drago01:
> On Mon, Apr 27, 2015 at 1:01 PM, Reindl Harald <h.reindl at thelounge.net> wrote:
>>
>> Am 27.04.2015 um 12:49 schrieb drago01:
>>>
>>> On Mon, Apr 27, 2015 at 11:12 AM, Reindl Harald <h.reindl at thelounge.net>
>>> wrote:
>>>>
>>>> am i the only one facing reproduceable crashes of apache worker process
>>>> each
>>>> time a roundcube 1.0.5 page is loaded? all relevant packages (apache,
>>>> php..)
>>>> here are built from identical srpms andthe only difference is the Fedora
>>>> 21
>>>> userland and a newer GCC
>>>>
>>>> that affects the same way PHP 5.5 as PHP 5.6
>>>
>>> You need a backtrace (better with debug symbols) to track it down ..
>>> strace output doesn't really tell much here
>>
>> not that easy with non-debug builds and in context of a preforking apache
>> with mod_php hecne the question if anybody can see that issue too
>
> Sure but "someone else has the same problem" by itself doesn't mean much.
> There are two ways to get a backtrace here either attach gdb and set
> follow -fork or let it coredump.
> Even without full debug info it might give you a clue where the problem is

it turned out to be

* mod_security
* built with --enable-pcre-jit
* /plugins/jqueryui/js/i18n/jquery.ui.datepicker-de.js

that smells to be a bug in pcre since the identical build on Fedora 20 
had no problem hence: https://bugzilla.redhat.com/show_bug.cgi?id=1215701

pcre-8.33-9.fc20.x86_64
pcre-8.35-10.fc21.x86_64

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