Comment 7 for bug 153986

I notice it's been a long time since this was reported, with no recent confirmations so am guessing people are not still experiencing the issue. The upstream bug also appears DOA so no luck there. I do see that several fixes have gone into the source code file that _mesa_update_state_locked comes from, so perhaps the issue was fixed upstream.

In any case, the Xorg.0.log backtrace doesn't give enough details to analyze the crash any further, so without a more detailed backtrace available I'm going to have to close it at this point. Feel free to reopen with a full backtrace if the issue can still be reproduced against current Karmic.