[Bug 100368] New: [BAT][HSW] igt at kms_flip@basic-flip-vs-wf_vblank fails in CI

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100368

            Bug ID: 100368
           Summary: [BAT][HSW] igt at kms_flip@basic-flip-vs-wf_vblank fails
                    in CI
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: critical
          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

The machine fi-hsw-4770 produced a fail when running
igt at kms_flip@basic-flip-vs-wf_vblank on CI_DRM_2392 and has not been seen for
the past 3 runs.

Relevant hunk in the piglit logs:
(kms_flip:9026) DEBUG: flip ts/seq: last 328.003934/17103, current
328.187405/17114: elapsed=183471.0us expected=183473.8us +- 917.4us, error 0.0%
(kms_flip:9026) CRITICAL: Test assertion failure function check_state, file
kms_flip.c:538:
(kms_flip:9026) CRITICAL: Failed assertion: es->current_seq == es->last_seq +
o->seq_step
(kms_flip:9026) CRITICAL: Last errno: 25, Inappropriate ioctl for device
(kms_flip:9026) CRITICAL: unexpected flip seq 17114, expected 17113

Raw results:
https://intel-gfx-ci.01.org/CI/CI_DRM_2392/fi-hsw-4770/igt@kms_flip@basic-flip-vs-wf_vblank.html

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