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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [SNB, IVB libva+rc6] Page flips hang indefinitely, apparently waiting for mmio writes that never happen"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75502#c39">Comment # 39</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [SNB, IVB libva+rc6] Page flips hang indefinitely, apparently waiting for mmio writes that never happen"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75502">bug 75502</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, that error state has some obvious libva badness as well as the mystery
QuickSync hang. Sadly, that could very well explain a system hang.</pre>
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