Thread:Project:Support desk/After upgrade to MediaWiki 1.21.2, search results in "no data received" in browser

I upgraded MediaWiki to version 1.21.2, and I can no longer use the search function. Trying to search for something results in the browser getting back "no data received." If I type in an exact page name, I'm still redirected to that specific page. This happens on multiple machines with the same configuration.

My PHP and MySQL versions are:


 * PHP	5.5.2-pl0-gentoo (apache2handler)
 * MySQL	5.1.67-log