[Bug 103516] New: [CI]igt at kms_frontbuffer_tracking@*fbc* - spurous skips - !fbc_not_enough_stolen()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103516

            Bug ID: 103516
           Summary: [CI]igt at kms_frontbuffer_tracking@*fbc* - spurous skips
                    -  !fbc_not_enough_stolen()
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: marta.lofstedt at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

This issue has been going on for a long time on SNB_shards:     

IGT-Version: 1.20-g9ba736ae (x86_64) (Linux: 4.14.0-rc5-CI-CI_DRM_3270+ x86_64)
Primary screen: VGA 1024x768, crtc 0
FBC last action not supported
Can't test PSR: no usable eDP screen.
Sink CRC not supported: primary screen is not eDP
Test requirement not met in function do_status_assertions, file
kms_frontbuffer_tracking.c:1708:
Test requirement: !fbc_not_enough_stolen()
Subtest fbc-1p-primscrn-shrfb-msflip-blt: SKIP (0.639s)

This need to be fixed before we can release SNB to pre-merge.

Some examples:
skipped:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3270/shard-snb3/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-shrfb-msflip-blt.html
passed:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3278/shard-snb4/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-shrfb-msflip-blt.html

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