The Mesa bug database is now hosted on freedesktop.org instead of SourceForge.
To file a Mesa bug, go to Bugzilla on freedesktop.org
Please follow these bug reporting guidelines:
Bug reports will automatically be forwarded to the Mesa developer's mailing list.
The easier a bug is to reproduce, the sooner it will be fixed. Please do everything you can to facilitate quickly fixing bugs. If your bug report is vague or your test program doesn't compile easily, the problem may not be fixed very quickly.