I am facing Strangest Problem ever in magento. we are using 1.9.0 version.
from last 2 months, our live site is "blank" or "keep on loading" for used browsers. Means in this browser we visited the site lot of times.
in some browsers, its working fine. in some showing blank.
but backend is working fine in all browsers.
we are facing problem in chrome, mozilla , opera and all other browsers.
1)If we clear the browser history[cache and cookies], than its working.
2)If we open the same site in private window , its working.
3)If we open the site in freshly installed browsers, its working for some time. again blank after we used the site.
4)If we clear the var/session folder, than it will start to work for all browsers for some time. again site blank.
5)sometimes, site will be keep on loading and it will never load....
I checked system.log & exception.log . but seems there are no errors related to this. we are using https for secure pages. even we have live Andriod app for this site. sometimes we will get Fatal errors :
**Fatal error**: Allowed memory size of 536870912 bytes exhausted (tried to allocate 85 bytes) in /lib/Zend/Db/Statement/Pdo.php or lib/Varien/Object.php or /lib/Varien/Db/Select.php or app/code/core/Mage/Core/Model/Config.php
we set memory_limit = 1512 Mb in php.ini
in .htaccess we have following files.
php_value memory_limit 1512M php_value max_execution_time 18000
we uncommented this :
but no error displaying in frontend. This is apache error log :
child pid 23845 exit signal Segmentation fault (11), possible coredump in /etc/apache2
Really struggling to solve this problem. Is this problem related to our code or is this problem related to server side ?
is browser cookie is the main problem ? If so what need to do to solve this cookie problem for all browsers. why its started working once we clear session folder?