[Bug 79285] [IVB/BDW]igt/kms_flip subcases vblank-vs-hang and vblank-vs-hang-interruptible fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79285

--- Comment #3 from Guo Jinxian <jinxianx.guo at intel.com> ---
Created attachment 100127
  --> https://bugs.freedesktop.org/attachment.cgi?id=100127&action=edit
dmesg

(In reply to comment #2)
> Please test 
> http://patchwork.freedesktop.org/patch/26649/

Test still failed with the patch.
Output:
./kms_flip --run-subtest vblank-vs-hang
IGT-Version: 1.6-g532b7e6 (x86_64) (Linux: 3.15.0-rc3_prts_0258fc_20140530
x86_64)
Using monotonic timestamps
Beginning vblank-vs-hang on crtc 5, connector 14
  1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
.............................................................
vblank-vs-hang on crtc 5, connector 14: PASSED

Beginning vblank-vs-hang on crtc 8, connector 14
  1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
Test assertion failure function wait_for_events, file kms_flip.c:1168:
Last errno: 0, Success
Failed assertion: ret > 0
select timed out or error (ret 0)
Subtest vblank-vs-hang: FAIL

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