[Bug 79050] [PNV/BYT/BDW Regression]igt/kms_flip some subcases fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79050

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

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

--- Comment #7 from Guo Jinxian <jinxianx.guo at intel.com> ---
(In reply to Daniel Vetter from comment #6)
> Is this still an issue with latest igt and kernel?

Yes, The failure is able to reproduce on latest igt and
-nightly(8bee1e2b478ba0eda2385a445007aeeba195646b)


root at x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip
--run-subtest dpms-vs-suspend
IGT-Version: 1.8-gdbac905 (x86_64) (Linux:
3.18.0-rc6_drm-intel-nightly_8bee1e_20141128+ x86_64)
Using monotonic timestamps
Unknown subtest: dpms-vs-suspend
root at x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip
--run-subtest 2x-dpms-vs-vblank-race-interruptible
IGT-Version: 1.8-gdbac905 (x86_64) (Linux:
3.18.0-rc6_drm-intel-nightly_8bee1e_20141128+ x86_64)
Using monotonic timestamps
Beginning 2x-dpms-vs-vblank-race-interruptible on crtc 8:13, connector 28:16
  1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
  1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
Test assertion failure function run_test_step, file kms_flip.c:873:
Failed assertion: end - start > 1 * frame_time(o) / 2 && end - start < 3 *
frame_time(o) / 2
Last errno: 4, Interrupted system call
Subtest 2x-dpms-vs-vblank-race-interruptible: FAIL (4.684s)

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