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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [gen2] Incoherent batch buffers, kernel w/a is n/a and no pin-ioctl to w/a"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90259#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [gen2] Incoherent batch buffers, kernel w/a is n/a and no pin-ioctl to w/a"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90259">bug 90259</a>
from <span class="vcard"><a class="email" href="mailto:tka@kamph.org" title="tka <tka@kamph.org>"> <span class="fn">tka</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=116186" name="attach_116186" title="/sys/class/drm/card0/error">attachment 116186</a> <a href="attachment.cgi?id=116186&action=edit" title="/sys/class/drm/card0/error">[details]</a></span>
/sys/class/drm/card0/error
(In reply to Chris Wilson from <a href="show_bug.cgi?id=90259#c5">comment #5</a>)
<span class="quote">> Something overwrote at least the first 32MiB of the GTT with ~0.</span >
Now I can say that this overwriting happens, but very rarely. Most of the time,
this does not happen. The GPU hang however is still present every time. Here is
a current /sys/class/drm/card0/error (Linux 4.0.4, xf-86-video-intel
git-fb1643f0f904eb258da71cd0b8deb8d3ec6dafed).</pre>
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