[Bug 110713] A Hat in Time: GPU hang with gallium nine

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110713

            Bug ID: 110713
           Summary: A Hat in Time: GPU hang with gallium nine
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: lolisamurai at tfwno.gf
        QA Contact: dri-devel at lists.freedesktop.org

when using gallium nine, A Hat in Time locks up the entire system (requires a
hard reboot) on certain scenes.

I'm running a r9 270x with the amdgpu driver and mesa-git 110950.fc455797c1b-1
+ llvm-svn 360675-1

this issue was discussed with the gallium nine guys here:
https://github.com/iXit/wine-nine-standalone/issues/35 and they narrowed it
down to radeonsi

using AMD_DEBUG=mono fixes the issue

this is the apitrace for gallium nine
https://mega.nz/#!ZJhRhYaR!cVsMkRYkl6kPl0f43sMKu8NI4pvA4eE85cbLJyoQ-jE

the hang happens on the very last part of the trace, when the green goo in the
middle of the room is on screen. the area is chapter3, act6 and all other
challenges that take place there

playing back the trace also causes the same hang.

playing back the trace with AMD_DEBUG=mono works correctly without any hangs

other users report that turning off dynamic lights also fixes the issue

another user reported a similar hang in chapter 1, act 4 with this apitrace
https://kiwii.casa/downloads/d3d9.trace.xz

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