[Bug 96974] [BAT BDW] gem_sync / basic-store-each fails sporadically

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96974

--- Comment #5 from Humberto Israel Perez Rodriguez <humberto.i.perez.rodriguez at intel.com> ---
Hi : 

after apply the patch from : https://patchwork.freedesktop.org/series/10124/
and try for 10 times this test it passed with the following configuration on
BDW-U

 Hardware information
============================================
Platform                        : BDW
Motherboard model               : 80E5
Motherboard type                : Lenovo G50-80 Notebook
Motherboard manufacturer        : LENOVO
CPU family                      : Core i5
CPU information                 : Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz
GPU Card                        : Intel Corporation Broadwell-U Integrated
Graphics (rev 09) (prog-if 00 [VGA controller])
Memory ram                      : 6 GB
Maximum memory ram allowed      : 16 GB



Component         : drm
        tag       : libdrm-2.4.69-25-g1af780c
        commit    : 1af780c 

Component         : cairo
        tag       : 1.15.2-49-g56ad58a
        commit    : 56ad58a 

Component         : intel-gpu-tools
        tag       : intel-gpu-tools-1.15-135-g250f047
        commit    : 250f047 


kernel used
================================================
commit 9953d9959d06f69b36255f398ce6158f1e5bb5a8
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Jul 21 07:57:39 2016 +0100

    drm/i915: Check for a stuck waiter before a missed interrupt

    As the interrupt wakeup counter only increments when we have a waiter,
    before testing to see if that counter is unchanged we have to first
    check that we do expect it to change (i.e. we have a waiter).

    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>


test output
================================================
IGT-Version: 1.15-g250f047 (x86_64) (Linux:
4.7.0-rc7drm-intel-nightly-ww30-commit-9953d99-bug-96974+ x86_64)
(gem_sync:2489) igt-core-DEBUG: Test requirement passed:
!igt_run_in_simulation()
(gem_sync:2489) drmtest-DEBUG: Test requirement passed: !(fd<0)
(gem_sync:2489) igt-core-DEBUG: Starting subtest: basic-store-each
blt completed 33792 cycles: 297.076 us
render completed 21504 cycles: 467.875 us
bsd completed 34816 cycles: 290.976 us
vebox completed 32768 cycles: 309.920 us
Subtest basic-store-each: SUCCESS (10.157s)
(gem_sync:2489) igt-core-DEBUG: Exiting with status code 0

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