[Bug 105290] [BSW] SynMark OglCSDof GPU hangs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105290

            Bug ID: 105290
           Summary: [BSW] SynMark OglCSDof GPU hangs
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: eero.t.tamminen at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Setup:
- Ubuntu 16.04
- Latest drm-tip kernel or 4.15, and X server from same time frame
- Mesa git
- SynMark v7.0

Test-case:
- ./synmark2 OglCSDof

Between following commits:
2018-02-20 18:43:42 UTC 4c4e6232ee: freedreno/ir3: fix use_count refcnt'ing
issue
2018-02-21 18:53:38 UTC 81dd4a7637: radeonsi: enable uvd encode for HEVC main

CSDof has started to GPU hang.  Hanging happens only with BSW.

Of the changes during this period, shader cache enabling looks most likely
candidate.  I'm not going to bisect this, but I should have free BSW available
tomorrow and can check whether disabling shader cache helps anything.

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