[Bug 106678] New: [CI] igt@* - dmesg-warn/fail - *ERROR* Potential atomic update failure on pipe [ABC]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106678

            Bug ID: 106678
           Summary: [CI] igt@* - dmesg-warn/fail - *ERROR* Potential
                    atomic update failure on pipe [ABC]
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: martin.peres at free.fr
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Starting from drmtip_50, we got over a thousand "*ERROR* Potential atomic
update failure on pipe *" in dmesg. This is a pretty serious regression :s

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_50/fi-cfl-s3/igt@kms_cursor_crc@cursor-128x42-offscreen.html

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_50/fi-cfl-u/igt@kms_cursor_crc@cursor-256x256-suspend.html

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_50/fi-kbl-7560u/igt@perf_pmu@idle-no-semaphores-bcs0.html

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_50/fi-kbl-r/igt@perf_pmu@idle-no-semaphores-bcs0.html

[  158.366252] [drm:intel_pipe_update_start [i915]] *ERROR* Potential atomic
update failure on pipe A

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