[Bug 110635] briefly flashing corruption when playing various OGL games

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110635

            Bug ID: 110635
           Summary: briefly flashing corruption when playing various OGL
                    games
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: tempel.julian at gmail.com
        QA Contact: dri-devel at lists.freedesktop.org

I'm seeing briefly flashing corruption in various OGL games, mostly Dying Light
and Counter-Strike Global Offensive Danger Zone. But I once also saw it in
X-Plane 11.
Happens with Mesa 18 and git and llvm 8 and git, but likely also even older
versions in both cases.

I was able to capture it by recording a video and then extracting an affected
frame:
https://abload.de/img/mpv-shot0001hkjyr.png

Across the aforementioned games, the artifacts look akin or the same. Can also
be brighter squares though.

Hardware issue is unlikely, as radv / amdvlk never show this issue (and Windows
driver neither).

I fail to see a pattern when this corruption occurs, it seems like total chance
to me while gaming.

This is with an RX 580 on Arch.

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