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

[bugzilla-daemon at freedesktop.org]

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

--- Comment #1 from lu hua <huax.lu at intel.com> ---
Test on BYT with latest -nightly kernel, it sporadically fails.
output:
root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_cursor_crc
--run-subtest cursor-256x256-onscreen
IGT-Version: 1.8-ge622850 (x86_64) (Linux:
3.18.0-rc3_drm-intel-nightly_f56717_20141105+ x86_64)
Beginning cursor-256x256-onscreen on pipe A, connector eDP-1
............................
cursor-256x256-onscreen on pipe A, connector eDP-1: PASSED

Beginning cursor-256x256-onscreen on pipe B, connector eDP-1
............................
cursor-256x256-onscreen on pipe B, connector eDP-1: PASSED

Subtest cursor-256x256-onscreen: SUCCESS (115.736s)
root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_cursor_crc
--run-subtest cursor-256x256-onscreen
IGT-Version: 1.8-ge622850 (x86_64) (Linux:
3.18.0-rc3_drm-intel-nightly_f56717_20141105+ x86_64)
Beginning cursor-256x256-onscreen on pipe A, connector eDP-1
..Test assertion failure function do_single_test, file kms_cursor_crc.c:131:
Failed assertion: igt_crc_equal(&crc, &ref_crc)
Subtest cursor-256x256-onscreen: FAIL (5.051s)
root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_cursor_crc
--run-subtest cursor-256x256-onscreen
IGT-Version: 1.8-ge622850 (x86_64) (Linux:
3.18.0-rc3_drm-intel-nightly_f56717_20141105+ x86_64)
Beginning cursor-256x256-onscreen on pipe A, connector eDP-1
..Test assertion failure function do_single_test, file kms_cursor_crc.c:131:
Failed assertion: igt_crc_equal(&crc, &ref_crc)
Subtest cursor-256x256-onscreen: FAIL (5.058s)

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