Comment 2 for bug 1323434

For reference I've posted a related question to see if I can do some more investigation myself here: http://askubuntu.com/questions/533052/how-to-find-and-report-memory-leak

Meanwhile it seems to be shared memory that is leaking so I'm wondering if it is actually a problem in the X Server or graphics driver? (Although it's only drawing applications that seem to suffer from the problem).