(In reply to Alex Deucher from comment #1)
> Please attach your full dmesg output.  Can you also provide the application
> log from and options used to decode?

For some reason I couldn't reproduce the complete crash with a player this time
but I've managed to consistently and immediately crash the driver with playing
http://thedailyshow.cc.com/videos/vbp8i5/living-in-denali in the Firefox with
chromium-pepper-flash-18.0.0.160 + freshplayerplugin-0.3.1 while its
"enable_hwdec" option is set. All with LIBVA_DRIVER_NAME=gallium

However, I also managed to hang X (picture is stuck but zapping combination
works and brings the new one back) by running 'env LIBVA_DRIVER_NAME=gallium
VDPAU_DRIVER=va_gl mpv -vo opengl --hwdec=vdpau' which needs
https://github.com/i-rinat/libvdpau-va-gl from the creator of
freshplayerplugin.

Here's some logs.