[clug] Segfault error flooding my logs

[David Tulloh]

PCRE has numerous well known and documented segfault problems, PHP makes 
no attempt to catch or filter these out.

Apache forks off a new worker thread* for each request that comes in, 
when PCRE segfaults this thread dies. Apache however carries on, so your 
server will not go down if a few threads do. I'm not sure if these 
segfaulted threads are cleaned up or hang around, if it's the latter 
your server may eventually stop responding as it runs out of threads.


David

* Assuming default Apache 2 configuration with mpm-worker model, other 
models will vary slightly in effects.

Ian McLeod wrote:
> Thanks for this..
>
> My Cacti server is still working though..
>
> Andrew Janke wrote:
>   
>> On Mon, Aug 31, 2009 at 18:36, Andrew Janke<a.janke at gmail.com> wrote:
>>   
>>     
>>> Not that this helps but you are not alone.
>>>
>>> https://bugs.launchpad.net/ubuntu/+source/pcre3/+bug/296997
>>>     
>>>       
>> And more pertinently.
>>
>> https://bugs.launchpad.net/ubuntu/+source/php5/+bug/407248
>>
>> a
>>   
>>