[Bug 81377] [IVB/BDW Bisected]igt/kms_mmio_vs_cs_flip/setcrtc_vs_cs_flip fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81377

--- Comment #5 from Guo Jinxian <jinxianx.guo at intel.com> ---
This bug still able to reproduce on BDW on latest
-nightly(2b6e6b9c29dbdaf596cad99877384af8b406d103) while running tests below

igt/kms_pipe_crc_basic/read-crc-pipe-B
igt/kms_pipe_crc_basic/read-crc-pipe-B-frame-sequence
igt/kms_pipe_crc_basic/read-crc-pipe-C
igt/kms_pipe_crc_basic/read-crc-pipe-C-frame-sequence
igt/kms_plane/plane-panning-bottom-right-pipe-B-plane-1
igt/kms_plane/plane-panning-bottom-right-pipe-B-plane-2
igt/kms_plane/plane-panning-bottom-right-pipe-C-plane-1
igt/kms_plane/plane-panning-bottom-right-pipe-C-plane-2
igt/kms_plane/plane-panning-top-left-pipe-B-plane-1
igt/kms_plane/plane-panning-top-left-pipe-B-plane-2
igt/kms_plane/plane-panning-top-left-pipe-C-plane-1
igt/kms_plane/plane-panning-top-left-pipe-C-plane-2
igt/kms_plane/plane-position-covered-pipe-B-plane-1
igt/kms_plane/plane-position-covered-pipe-B-plane-2
igt/kms_plane/plane-position-covered-pipe-C-plane-1
igt/kms_plane/plane-position-covered-pipe-C-plane-2
igt/kms_plane/plane-position-hole-pipe-B-plane-1
igt/kms_plane/plane-position-hole-pipe-B-plane-2
igt/kms_plane/plane-position-hole-pipe-C-plane-1
igt/kms_plane/plane-position-hole-pipe-C-plane-2
igt/kms_universal_plane/disable-primary-vs-flip-pipe-B
igt/kms_universal_plane/disable-primary-vs-flip-pipe-C
igt/kms_universal_plane/universal-plane-pipe-B-functional
igt/kms_universal_plane/universal-plane-pipe-B-sanity
igt/kms_universal_plane/universal-plane-pipe-C-functional
igt/kms_universal_plane/universal-plane-pipe-C-sanity

Output:
root at x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#
./kms_universal_plane --run-subtest disable-primary-vs-flip-pipe-B
IGT-Version: 1.7-g5c7bcb1 (x86_64) (Linux:
3.16.0_drm-intel-nightly_2b6e6b_20140815+ x86_64)
Test assertion failure function igt_wait_for_vblank, file igt_kms.c:1582:
Failed assertion: drmWaitVBlank(drm_fd, &wait_vbl) == 0
Last errno: 16, Device or resource busy
Subtest disable-primary-vs-flip-pipe-B: FAIL

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