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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [SKL bisected] texsubimage pbo intermittent failures"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91926#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [SKL bisected] texsubimage pbo intermittent failures"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91926">bug 91926</a>
from <span class="vcard"><a class="email" href="mailto:ben@bwidawsk.net" title="Ben Widawsky <ben@bwidawsk.net>"> <span class="fn">Ben Widawsky</span></a>
</span></b>
<pre>(In reply to Topi Pohjolainen from <a href="show_bug.cgi?id=91926#c4">comment #4</a>)
<span class="quote">> Among other things I had simplified the test and altered it report every
> faulty pixel (instead of bailing out on first error). That way I had noticed
> that the failing area is always a 4x4 block (16 pixels). And with the RGBA8
> format I've been concentrating on thus corresponding to one cache line of 64
> bytes. Moreover, the erroneous values are not just random garbage but
> exactly the values expected to see for the 4x4 block in position 0,0 - 3,3.
> Hence I've been suspecting the cache simply containing "old data".</span >
Are you seeing any pattern to the location of the erroneous data?</pre>
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