[Bug 109682] [BDWgt3e] intermittent deqp-vk.subgroups failures

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109682

            Bug ID: 109682
           Summary: [BDWgt3e] intermittent deqp-vk.subgroups failures
           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: mark.a.janes at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

In mesa CI, about 10% of test runs generate a single failure in the subgroups
category.  A quick look at the history shows the following failures:

dEQP-VK.subgroups.shuffle.subgroupshuffleup_uvec2_graphic
dEQP-VK.subgroups.shuffle.subgroupshuffleup_vec3_graphic
dEQP-VK.subgroups.quad.subgroupquadswapdiagonal_dvec3_graphic
dEQP-VK.subgroups.arithmetic.subgroupinclusivemin_uint_graphic
dEQP-VK.subgroups.quad.subgroupquadbroadcast_0_bool_graphic
dEQP-VK.subgroups.basic.subgroupelect_graphic
dEQP-VK.subgroups.quad.subgroupquadswaphorizontal_dvec3_graphic


Typical output for a failure:

  1022 / 1023 values passed

All tests in the recent CI history occure on GT3e systems, even though nearly
half of the BDW in CI are GT2.

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