https://bugs.freedesktop.org/show_bug.cgi?id=35942
--- Comment #4 from Chris Rankin rankincj@googlemail.com 2011-04-04 14:00:28 PDT --- (In reply to comment #1)
If you just revert 437c748bf5072d2bded77a00c74c51cdb8b510e5, does it fix the bug?
No, the first bad commit seems to be c35572352e3e92683988ee8d151b47f4190d62f9.