[Bug 102522] [radeonsi, bisected] commit 147d7fb772 causes full-window map to flash green in Crea

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=102522

            Bug ID: 102522
           Summary: [radeonsi, bisected] commit 147d7fb772 causes
                    full-window map to flash green in Crea
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: Kaelyn.Alexi+fdo@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 133944
  --> https://bugs.freedesktop.org/attachment.cgi?id=133944&action=edit
Output of "glxinfo -s -l"

In the game Crea (http://store.steampowered.com/app/280520 and
https://www.humblebundle.com/store/crea), when opening the map to the
full-window, non-overlay view on recent Mesa, the screen constantly flashes
with a green hatching that makes the map impossible to make out. The flashing
seems to occur between frames, since the snapshots taken by glretrace don't
reflect the issue even though replaying a trace does. The problem first shows
up with commit 147d7fb772 "st/mesa: add a winsys buffers list in st_context".

The apitrace
https://drive.google.com/file/d/0B-61xmxFzL-fTklGMzRiSERlTUE/view?usp=sharing
shows the game loading and me bringing up the map; once the non-overlay map
mode is reached is when the green flashing starts for me (when Mesa is at or
past the aforementioned commit, including 17.2.0-rc5).

I'm running Gentoo Linux on a Ryzen 1800X with a Radeon RX480, and Mesa was
compiled against LLVM 4.0.1 (though I usually use Mesa and LLVM git), using gcc
6.4.0 for building everything. And I'm running Xorg 1.19.3 and kernel 4.12.7.

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