You can use xcache instead of eaccelerator. After you uninstalled eaccelaretor with:
yum remove php-eaccelerator
install xcache with:
yum install php-xcache
xcache is a php binary cache like eaccelerator but it does not cause these problems with joomla and phpmyadmin.
Last edited by till; 6th February 2012 at 15:16.
Reason: Fixed install command as pointed out by Lionheart