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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [865G] GPU hung"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63221#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [865G] GPU hung"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63221">bug 63221</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>So in the command stream, there is
0x0100040c: HEAD 0x3e800000: UNKNOWN
instead of 0x6b800000. Similar but not close enough to suggest a physical
memory error. A single word is incorrect which does not suggest tiling or GPU
overwrites. So either that dword was incorrectly generated by UXA or it got
left behind in the upload. The placement suggests that it is not a pwrite
error, and again a single dword error suggests that it is not stale data
trapped in the CPU cache.
As impossible as it seems, that leaves UXA. Try SNA, see what happens.</pre>
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