With less than about a week left till the final release and a day till the Release Candidate, Ubuntu 10.04 Lucid Lynx has been hit by a very serious memory leak problem involving X.Org ^[1].

Last week, the Lucid repository  received  an update for X.Org Server to enable GLX 1.4 ^[2]. This update in X.Org Server resulted is some crashes and as a result another patch was introduced to fix the crash. This update to fix the crash has resulted in a major memory leak which causes the system to get slower and slower until it becomes completely sluggish and unusable.

This problem is currently being considered “Urgent” and the attempts by the Ubuntu developers to fix this issue have been unsuccessful so far. In order to fix the problem in time for the final release, the developers are considering rolling back the patches, including the one which enables GLX 1.4. This will mean going back to GLX 1.2.

[via ubuntu-dev mailing list ^[3]]