[Bug 111763] ring_gfx hangs/freezes on Navi gpus

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Sep 30 21:55:56 UTC 2019


--- Comment #7 from Doug Ty <git at dougty.com> ---
(In reply to Marko Popovic from comment #6)
> (In reply to Doug Ty from comment #5)
> > I've been getting this too with Minecraft:  
> > https://bugs.freedesktop.org/show_bug.cgi?id=111669
> > 
> > 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:https://bugs.freedesktop.org/show_bug.cgi?id=111481
> 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.

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.

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