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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - OpenCL/Clover: AMD Turks: corrupt output buffer (depending on dimension order?)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103586#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - OpenCL/Clover: AMD Turks: corrupt output buffer (depending on dimension order?)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103586">bug 103586</a>
from <span class="vcard"><a class="email" href="mailto:freedesktop@treblig.org" title="Dave Gilbert <freedesktop@treblig.org>"> <span class="fn">Dave Gilbert</span></a>
</span></b>
<pre>(In reply to Jan Vesely from <a href="show_bug.cgi?id=103586#c5">comment #5</a>)
<span class="quote">> (In reply to Dave Gilbert from <a href="show_bug.cgi?id=103586#c4">comment #4</a>)
> > Created <span class=""><a href="attachment.cgi?id=135313" name="attach_135313" title="foo.link-0.ll">attachment 135313</a> <a href="attachment.cgi?id=135313&action=edit" title="foo.link-0.ll">[details]</a></span>
> > foo.link-0.ll
> >
> > That's all 3 of the debug files it produced.
> > (I wasn't sure which were the llvm and which the isa dumps; I guess the asm
> > is the isa? and the ll's are both llvm dumps?)
>
> yes. the first .ll is from compilation step, the other one is from linking
> step.
>
> .ll dump looks correct.
> .asm also looks correct.
>
> you can try producing multiple asm dumps for working and non-working runs.
> But I don't think that the llvm is the culprit here.
>
> Can you try waiting for the kernel execution to complete explicitly before
> mapping the buffer?
> Ideally call clFinish() on line 63.</span >
Since I'm on the C++ binding (probably a mistake) I used:
queue.finish();
and it seems to be working.
(This also corresponds possibly to what I'm seeing on a more complex kernel;
with a more complex kernel I'm seeing on a whole pile of data on the last few Z
slices as being bogus suggesting it's not finished).
Dave</pre>
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