[Bug 82446] [SNB/IVB/HSW/BSW Regression]igt/kms_flip subcases flip-vs-expired-vblank and flip-vs-expired-vblank-interruptible fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=82446

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[SNB/IVB/HSW                |[SNB/IVB/HSW/BSW
                   |Regression]igt/kms_flip     |Regression]igt/kms_flip
                   |subcases                    |subcases
                   |flip-vs-expired-vblank and  |flip-vs-expired-vblank and
                   |flip-vs-expired-vblank-inte |flip-vs-expired-vblank-inte
                   |rruptible fail              |rruptible fail

--- Comment #5 from Guo Jinxian <jinxianx.guo at intel.com> ---
The failure is able to reproduce on latest -nightly() on BSW while running test
igt/kms_flip/flip-vs-expired-vblank-interruptible and flip-vs-expired-vblank

[root at x-bsw01 tests]# ./kms_flip --run-subtest
flip-vs-expired-vblank-interruptible
IGT-Version: 1.8-gd9d3f4b (x86_64) (Linux:
3.17.0-rc4_drm-intel-nightly_72faa6_20140911+ x86_64)
Using monotonic timestamps
Beginning flip-vs-expired-vblank-interruptible on crtc 8, connector 31
  1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
..Test assertion failure function run_test_step, file kms_flip.c:838:
Failed assertion: timercmp(&reply.ts, &o->flip_state.last_ts, ==)
Last errno: 4, Interrupted system call
Subtest flip-vs-expired-vblank-interruptible: FAIL (2.439s)

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