[Bug 111763] ring_gfx hangs/freezes on Navi gpus - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 111763] ring_gfx hangs/freezes on Navi gpus
Date: Mon, 30 Sep 2019 22:02:23 +0000	[thread overview]
Message-ID: <bug-111763-502-56ArTrxQSf@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-111763-502@http.bugs.freedesktop.org/>

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https://bugs.freedesktop.org/show_bug.cgi?id=111763

--- Comment #8 from Marko Popovic <popovic.marko@protonmail.com> ---
(In reply to Doug Ty from comment #7)
> (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.

I guess we just have many different types of hangs then... ring_gfx hangs are
more mysterious than sdma0/1 hangs it seems, since there is no "universal"
workaround for them. nodma works for stopping global sdma-type hangs for me,
nongg works for stopping the citra-related hang of ring_gfx type, but none of
those 2 variables work for stopping Starcraft II and RoTR ring_gfx-type hangs
for me, so it's really really confusing.

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