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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - ring_gfx hangs/freezes on Navi gpus"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111763#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - ring_gfx hangs/freezes on Navi gpus"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111763">bug 111763</a>
from <span class="vcard"><a class="email" href="mailto:git@dougty.com" title="Doug Ty <git@dougty.com>"> <span class="fn">Doug Ty</span></a>
</span></b>
<pre>(In reply to Marko Popovic from <a href="show_bug.cgi?id=111763#c6">comment #6</a>)
<span class="quote">> (In reply to Doug Ty from <a href="show_bug.cgi?id=111763#c5">comment #5</a>)
> > I've been getting this too with Minecraft:
> > <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED MOVED - Navi GPU hang in Minecraft"
href="show_bug.cgi?id=111669">https://bugs.freedesktop.org/show_bug.cgi?id=111669</a>
> >
> > For my particular case at least, AMD_DEBUG=nodma seems to fix it
>
> You are refering to sdma0 / sdma1 type hang which is tracked
> here:<a class="bz_bug_link
bz_status_NEW "
title="NEW - AMD Navi GPU frequent freezes on both Manjaro/Ubuntu with kernel 5.3 and mesa 19.2 -git/llvm9"
href="show_bug.cgi?id=111481">https://bugs.freedesktop.org/show_bug.cgi?id=111481</a>
>
> For ring_gfx hangs they're quite more reproducible and are not affected by
> AMD_DEBUG=nodma or AMD_DEBUG=nongg which I already mentioned above in the
> bug description.</span >
Sorry, but this is incorrect. My Minecraft hang is most definitely a ring gfx
hang, *not* sdma. I've posted logs and apitraces in the linked thread if you'd
like to check for yourself.
I can't explain why nodma isn't working for you, perhaps it doesn't work for
game? Have you tried putting it in /etc/environment so it's system-wide? I
don't know what to tell you regarding nodma, but my hang is definitely ring gfx
as well.</pre>
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