[Bug 89959] [SKL]igt/gem_concurrent_blit subcase sporadically causes system hang and *ERROR* blitter: timed out waiting for forcewake ack to clear.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89959

--- Comment #20 from Rami <ramix.ben.hassine at intel.com> ---
Created attachment 117569
  --> https://bugs.freedesktop.org/attachment.cgi?id=117569&action=edit
log test

Test passed with success.

IGT-Version: 1.11-g6bd42ce (x86_64) (Linux:
4.2.0-rc5-drm-intel-nightly-ww32-patch-bug89739+ x86_64)
using 2x512 buffers, each 1MiB
Subtest prw-blt-overwrite-source-read-rcs-forked: SUCCESS (8.634s)


Hardware
Platform: SKY LAKE Y A0
CPU : Intel(R) Core(TM) m3-6Y30 CPU @ 0.8GHz 4MB (family: 6, model: 78 
stepping: 3)
MCP : SKL-Y  D1  2+2
QDF : QVY3 
CPU : SKL D1
Chipset PCH: Sunrise Point LP C1       
CRB : SKY LAKE Y LPDDR3 RVP3 CRB FAB2
Reworks : All Mandatories + FBS02 & FBS03, O-06
Software 
Kernel : drm-intel-nightly fb4572c00fadc1ac94816061e76c65b65607f66a 4.2.0-rc5
from git://anongit.freedesktop.org/drm-intel
Bios: SKLSE2R1.R00.X093.1507222151
ME FW : 11.0.0.1165
Ksc (EC FW): 1.16
drm: (HEAD, origin/master, origin/HEAD, master)
fc083322b0c8a58b51976adf23a582bce8bb75f1 from
git://git.freedesktop.org/git/mesa/drm
intel-driver: (HEAD, origin/master, origin/HEAD, master)
611d8ea9d75dc026c203e3ebe53b434769d4587c from
git://git.freedesktop.org/git/vaapi/intel-driver
libva: (HEAD, origin/master, origin/HEAD, master)
70b80c0dd2effb4956b208775641f7c68a67a9df from
git://git.freedesktop.org/git/vaapi/libva
mesa: (HEAD, origin/master, origin/HEAD, master)
1b2b0e42ce47bfd1fcb5513ed2c23b9bb7a5a5b8 from
git://git.freedesktop.org/git/mesa/mesa
xf86-video-intel: (HEAD, origin/master, origin/HEAD, master)
4246c63347290390a2104739c719f5ff6a05a0e2 from
git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
xserver: (HEAD, origin/master, origin/HEAD, master)
ea03e314f98e5d8ed7bf7a508006a3d84014bde5 from
git://git.freedesktop.org/git/xorg/xserver


Kernel commit log:
commit fb4572c00fadc1ac94816061e76c65b65607f66a
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Wed Aug 5 17:33:52 2015 +0200
drm-intel-nightly: 2015y-08m-05d-15h-33m-02s UTC integration manifest

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