https://bugs.freedesktop.org/show_bug.cgi?id=111481

--- Comment #235 from Marko Popovic <popovic.marko@protonmail.com> ---
(In reply to Alex Deucher from comment #233)
> Does attachment 145971 [details] [review] help?

No, this is for flip hangs that only happen in some games, random SDMA hangs
are still present, but SDMA is disabled in MESA20 so for the timebeing it
should be more stable.

(In reply to Timur Kristóf from comment #234)
> (In reply to John H from comment #227)
> > However, I have hard freezes when playing games. A
> > specific one I can reproduce EVERY. SINGLE. TIME. was when playing Unreal
> > Tournament 3 via Steam proton.
> 
> Sounds like the same, or similar issue as this one:
> https://gitlab.freedesktop.org/mesa/mesa/issues/868
> 
> In that case it was caused by an LLVM bug that has been fixed in LLVM 10 for
> a while but haven't made it into LLVM 9 yet.
> If you use mesa 19.3 can you try if the same issue occours with ACO?
> 

Radv hangs are not related to SDMA hangs, but luckily at least those are fixed
in LLVM10, so we can at least have decently stable experience with
AMD_DEBUG=nodma, which is basically enabled by default in MESA 20.

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