Created attachment 113081 [details]
crash from sys log.
this typically happens when chrome requests to play a video of some sort while another video is playing in another application.
Created attachment 113082 [details]
drm filter from syslog
This is likely fixed in Mesa 10.4 or master. Can you try one of those?
You may also be able to work around the issue by setting the
"always_flush_cache=true" environment variable.
*** This bug has been marked as a duplicate of bug 88809 ***
Yep installing mesa 10.4 following this guide, http://www.phoronix.com/scan.php?page=news_item&px=MTc4NTk, worked.