[Bug 79052] [PNV/IVB]igt/kms_flip subcases vblank-vs-suspend and vblank-vs-suspend-interruptible fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79052

--- Comment #4 from liulei <lei.a.liu at intel.com> ---
On pnv, it work well. But failed on IVB

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[root at x-pnv tests]# ./kms_flip --run-subtest vblank-vs-suspend
IGT-Version: 1.6-gff3c122 (i686) (Linux:
3.15.0-rc6_drm-intel-nightly_c37f30_20140525+ i686)
Using monotonic timestamps
Beginning vblank-vs-suspend on crtc 7, connector 8
  1024x600 60 1024 1072 1104 1200 600 603 609 625 0xa 0x48 45000
Subtest vblank-vs-suspend: SUCCESS
--------------------------------------------
[root at x-ivb opt]# ./kms_flip --run-subtest vblank-vs-suspend
IGT-Version: 1.6-gff3c122 (x86_64) (Linux:
3.15.0-rc5_drm-intel-fixes_c1240b_20140525_debug+ x86_64)
Using monotonic timestamps
Beginning vblank-vs-suspend on crtc 5, connector 16
  1920x1200 60 1920 1968 2000 2080 1200 1203 1209 1235 0x9 0x48 154000
.rtcwake: wakeup from "mem" using /dev/rtc0 at Mon May 26 20:56:10 2014
.rtcwake: wakeup from "mem" using /dev/rtc0 at Mon May 26 20:56:42 2014
Test assertion failure function check_state, file kms_flip.c:565:
Last errno: 0, Success
Failed assertion: es->current_seq - (es->last_seq + o->seq_step) <= 1UL << 23
unexpected vblank seq 4294962482, should be >= 43244
Subtest vblank-vs-suspend: FAIL

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