[Bug 83640] [BDW bisected]igt/kms_plane some subcases fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83640

--- Comment #2 from Guo Jinxian <jinxianx.guo at intel.com> ---
This failure is able to reproduce while running tests below

igt/kms_cursor_crc/cursor-128-offscreen
igt/kms_cursor_crc/cursor-128-onscreen
igt/kms_cursor_crc/cursor-128-random
igt/kms_cursor_crc/cursor-128-sliding
igt/kms_cursor_crc/cursor-256-offscreen
igt/kms_cursor_crc/cursor-256-onscreen
igt/kms_cursor_crc/cursor-256-random
igt/kms_cursor_crc/cursor-256-sliding
igt/kms_cursor_crc/cursor-64-offscreen
igt/kms_cursor_crc/cursor-64-onscreen
igt/kms_cursor_crc/cursor-64-random
igt/kms_cursor_crc/cursor-64-sliding
igt/kms_cursor_crc/cursor-size-change

root at x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_cursor_crc
--run-subtest cursor-128-offscreenIGT-Version: 1.8-g137877f (x86_64) (Linux:
3.17.0-rc5_drm-intel-nightly_ab7f1a_20140917+ x86_64)
Beginning cursor-128-offscreen on pipe A, connector eDP-1
....................................................
cursor-128-offscreen on pipe A, connector eDP-1: PASSED

Test assertion failure function igt_wait_for_vblank, file igt_kms.c:1707:
Failed assertion: drmWaitVBlank(drm_fd, &wait_vbl) == 0
Last errno: 16, Device or resource busy
Subtest cursor-128-offscreen: FAIL (12.173s)

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