[Bug 89141] New: [BDW] texelFetch fs sampler2DMSArray 4 98x1x9-98x129x9 fails intermittently

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89141

            Bug ID: 89141
           Summary: [BDW] texelFetch fs sampler2DMSArray 4 98x1x9-98x129x9
                    fails intermittently
           Product: Mesa
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: idr at freedesktop.org
          Reporter: mark.a.janes at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

This piglit test fails intermittently.  It passes about 99 times out of 100.

Relevant output sample from a failed test:

> bin/texelFetch fs sampler2DMSArray 4 98x1x9-98x129x9 -auto -fbo
....
98x100x9
98x101x9
Probe at (14,122)
  Expected: 0.092784 0.150000 0.000000 0.100000
  Observed: 0.082353 0.149020 0.000000 0.098039
98x102x9
98x103x9
...

Test fails on a BDWGT2.  We have no other broadwell platform that runs this
test often enough to see the failure.  No other platforms report similar
failures.

This occurs on mesa master.  It is difficult to bisect, because it is so
infrequent.  

Because BDW was recently enabled in the percheckin test pool, I don't know how
long it has been failing for.

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