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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - GPU hang (render ring)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102465#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - GPU hang (render ring)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102465">bug 102465</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>Hmm, the video decoder is active at the time of the hang, so the forcewake
errors may well be due to an invalid batch. It then screws up the gpu such that
recovery is then impossible. Since the GPU is dead, the error state is devoid
of register information, definitely an interesting side-effect! The second hang
also points the finger at libva.
It's worth just sticking on drm-tip [<a href="https://cgit.freedesktop.org/drm-tip">https://cgit.freedesktop.org/drm-tip</a>] just
to see if anything changes.</pre>
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