eAccelerator error message (in PHP error log) is: This build of "eAccelerator" was compiled for PHP version 4.4.0. Rebuild it for your PHP version (4.4.0-pl1-gentoo) or download precompiled binaries. After that, Apache is shut down. It worked for mod_php-4.4.0 so I assume that the pl1-gentoo suffix was added later. Not sure if this should be reported as an eAccelerator bug or a Gentoo bug. Installed packages: net-www/apache-2.0.55-r1 dev-php/php-4.4.0 dev-php/eaccelerator-0.9.3 dev-php/mod_php-4.4.0-r9
dev-php/{php,mod_php} are deprecated ebuilds. Please, migrate to dev-lang/php. http://www.gentoo.org/proj/en/php/php-upgrading.xml P.S. Re-emerging dev-php/eaccelerator should fix the problem, if not - see above.