Created attachment 113932 [details]
dmesg

==System Environment==
--------------------------
Regression: no, this case always fail.

Non-working platforms: BYT

==kernel==
--------------------------
origin/drm-intel-nightly: 2015-03-03(fails)

==Bug detailed description==
-----------------------------
root@x-byt05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip --run-subtest flip-vs-expired-vblank
IGT-Version: 1.9-g5e4fc0c (x86_64) (Linux: 4.0.0-rc1_drm-intel-nightly_55f9f6_20150303+ x86_64)
Using monotonic timestamps
Beginning flip-vs-expired-vblank on crtc 20, connector 28
  1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Test assertion failure function run_test_step, file kms_flip.c:912:
Failed assertion: gettime_us() - start < 500
Subtest flip-vs-expired-vblank failed.
Log Start
Test requirement passed: (flags & TEST_HANG) == 0 || !is_hung(drm_fd)
Test requirement passed: modes
Beginning flip-vs-expired-vblank on crtc 20, connector 28
igt_create_fb_with_bo_size(width=1920, height=1080, format=0x34325258 [bpp=32], tiling=0, size=0
igt_create_fb_with_bo_size(handle=2, pitch=7680)
igt_create_fb_with_bo_size(width=1920, height=1080, format=0x34325258 [bpp=32], tiling=0, size=0
igt_create_fb_with_bo_size(handle=3, pitch=7680)
igt_create_fb_with_bo_size(width=1920, height=1080, format=0x34325258 [bpp=32], tiling=1, size=0
igt_create_fb_with_bo_size(handle=4, pitch=8192)
  1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
Test assertion failure function run_test_step, file kms_flip.c:912:
Failed assertion: gettime_us() - start < 500
Log End
Subtest flip-vs-expired-vblank: FAIL (14.919s)
Received signal SIGTERM.



==Reproduce steps==
---------------------------- 
1./kms_flip --run-subtest flip-vs-expired-vblank