[Bug 84269] New: [BYT/BSW]igt/kms_cursor_crc some subcases fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84269

          Priority: medium
            Bug ID: 84269
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [BYT/BSW]igt/kms_cursor_crc some subcases fail
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: jinxianx.guo at intel.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 106768
  --> https://bugs.freedesktop.org/attachment.cgi?id=106768&action=edit
dmesg

==System Environment==
--------------------------
Regression: No.
They are new cases.

Non-working platforms: BYT BSW

==kernel==
--------------------------
origin/drm-intel-nightly: 1c38dbc94bc61e685c72994cc9e634d4eb8c4da1(fails)
    drm-intel-nightly: 2014y-09m-23d-14h-26m-24s UTC integration manifest
origin/drm-intel-next-queued: 9adccc6063d1cf6ba38a5a26b87001554105be18(fails)
    drm/i915: add SW tracking to FBC enabling
origin/drm-intel-fixes: c84db77010877da6c5da119868ed54c43d59e726(fails)
    drm/i915/hdmi: fix hdmi audio state readout

==Bug detailed description==
-----------------------------
igt/kms_cursor_crc some subcases fail

Case lise:
igt/kms_cursor_crc/cursor-128x128-offscreen
igt/kms_cursor_crc/cursor-128x128-onscreen
igt/kms_cursor_crc/cursor-128x128-random
igt/kms_cursor_crc/cursor-128x128-sliding
igt/kms_cursor_crc/cursor-256x256-offscreen
igt/kms_cursor_crc/cursor-256x256-onscreen
igt/kms_cursor_crc/cursor-256x256-random
igt/kms_cursor_crc/cursor-256x256-sliding
igt/kms_cursor_crc/cursor-64x64-offscreen
igt/kms_cursor_crc/cursor-64x64-onscreen
igt/kms_cursor_crc/cursor-64x64-random
igt/kms_cursor_crc/cursor-64x64-sliding

Output:
root at x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_cursor_crc
--run-subtest cursor-128x128-offscreen
IGT-Version: 1.8-g4b81e9c (x86_64) (Linux:
3.17.0-rc6_drm-intel-nightly_1c38db_20140924+ x86_64)
Beginning cursor-128x128-offscreen on pipe A, connector eDP-1
.Test assertion failure function do_single_test, file kms_cursor_crc.c:132:
Failed assertion: igt_crc_equal(&crc, &ref_crc)
Subtest cursor-128x128-offscreen: FAIL (3.260s)

==Reproduce steps==
---------------------------- 
1. ./kms_cursor_crc --run-subtest cursor-128x128-offscree

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