Last modified: 2010-05-15 15:48:22 UTC
I upgraded to PHP 5.2.1 and MediaWiki login functionality stopped working. Since it was on a production site, I had to revert fast and didn't get to debug much, only turned off php optimizer, with no effect, and scanned apache logfiles, which didn't report any errors. I run PHP in gid safe mode
No problems with 5.2.1 here. Ensure that PHP's sessions are saving properly and that safe mode doesn't interfere. Confirm that PHP's behavior hasn't changed between whatever your previous version was and 5.2.1 and that your session files and session directory are correctly configured and correctly owned.
After setting the session.save_path in php.ini, MediaWiki works also under PHP 5.2.1. I had the same probleme...