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

[bugzilla-daemon at freedesktop.org]

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

Guo Jinxian <jinxianx.guo at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |ASSIGNED

--- Comment #5 from Guo Jinxian <jinxianx.guo at intel.com> ---
(In reply to comment #4)
> Hi Guo,
> 
> Could you please revert this patch to validate the bisect?
> 
> I don't believe this bisect result is valid and tested here and still face
> the issue with the revert.
> 
> So if you face the same could you please bisect a little further to find the
> proper ofending commit?

Yes, The bisect result is invalid. I tried on both kernel and igt, and doesn't
find good commit.

I tried rollback igt to commit(c12f292b1d8bbc61b65f1dfc3fd4a9e1e286dbee), and
found the failure is same as bug 81377. This bug should be duplicated with bug
81377.

root at x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_plane
--run-subtest plane-position-covered-pipe-C-plane-1
IGT-Version: 1.7-gc12f292 (x86_64) (Linux:
3.17.0-rc6_drm-intel-nightly_7101d8_20140928+ x86_64)
Testing connector eDP-1 using pipe C plane 1
Test assertion failure function igt_wait_for_vblank, file igt_kms.c:1589:
Failed assertion: drmWaitVBlank(drm_fd, &wait_vbl) == 0
Last errno: 16, Device or resource busy
Subtest plane-position-covered-pipe-C-plane-1: FAIL

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