https://bugs.freedesktop.org/show_bug.cgi?id=75900
--- Comment #8 from Marek Olšák maraeo@gmail.com --- (In reply to comment #6)
I'm experiencing the same problems on my HD6850, currently upgrading to master to see if it helps, however unlike Benjamin case my card hanged when I watched some movie (vpdu backend), the other time I was viewing some web page - there was a (old, via wine) game running in the backround though.
The crashes seemed completely random, no indication what might have caused it. I'll attach log file containing first hang (I had to do a hard reset, sysrq didn't work, on the second occasion sysrq did work but there was no info in the log file but I think I've waited long enough, strange).
Please let me know after you test Mesa master. Thanks.