[Bug 91715] New: [SKL] suspend_stress_tests.shell script hangs after running several S4 iterations

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91715

            Bug ID: 91715
           Summary: [SKL] suspend_stress_tests.shell script hangs after
                    running several S4 iterations
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: jairo.daniel.miramontes.caton at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 117839
  --> https://bugs.freedesktop.org/attachment.cgi?id=117839&action=edit
S4_SKL_Tests.zip

Bug description:
------------------
After running "suspend_stress_test.shell" script the platform hangs after
several S4 iterations 

System environment:
------------------

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 (ou ULX-D1)
QDF : QYV3 
CPU : SKL D0
Chipset PCH: Sunrise Point LP C1       
CRB : SKY LAKE Y LPDDR3 RVP3 CRB FAB2
Reworks : All Mandatories + FBS02 & FBS03, O-06


Graphic stack:
cairo: (HEAD, tag: 1.14.2) 93422b3cb5e0ef8104b8194c8873124ce2f5ea2d from
git://git.freedesktop.org/git/cairo
drm: (HEAD, origin/master, origin/HEAD, master)
2a34176123b1dbf55d129248a431afb185e6a37c from
git://git.freedesktop.org/git/mesa/drm
intel-driver: (HEAD, origin/master, origin/HEAD, master)
7c47a8f74878904e0d2fbb5da966552f783d74ab from
git://git.freedesktop.org/git/vaapi/intel-driver
libva: (HEAD, origin/master, origin/HEAD, master)
fdd6ee00c916f530e4d0aa1b250633643999dcf1 from
git://git.freedesktop.org/git/vaapi/libva
mesa: (HEAD, origin/10.6) 99793e2541510fe208d29e69fedf97a6fff006f8 from
git://git.freedesktop.org/git/mesa/mesa
xf86-video-intel: (HEAD, origin/master, origin/HEAD, master)
9b0ed16385ae076c262a2e09639822d9488ccf57 from
git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
xserver: (HEAD, origin/master, origin/HEAD, master)
533fb627398e20f863234d780f4463e37007515b from
git://git.freedesktop.org/git/xorg/xserver


Software :
Linux distribution: Ubuntu 14.04.02 X64
BIOS : SKLSE2R1.R00.X093.B02.1507222151
ME FW : 11.0.0.1163
Ksc (EC FW): 1.15
Firmware: skl_guc_ver3.2-signed-1.0.0.1137
Kernel : drm-intel-nightly 30263ef782e0548c114fb6f2771b58b27c56ba0d 4.2.0-rc7
from git://anongit.freedesktop.org/drm-intel 


Kernel commit log:
commit 30263ef782e0548c114fb6f2771b58b27c56ba0d 
Author: Jani Nikula 
Date: Mon Aug 17 10:19:43 2015 +0300 
drm-intel-nightly: 2015y-08m-17d-07h-19m-25s UTC integration manifest
rendercheck: (HEAD, tag: rendercheck-1.5, origin/master, origin/HEAD, master)
604e3bbe6d8d96bec284a83c08c5cc5f159a243c from
git://git.freedesktop.org/git/xorg/app/rendercheck


Display Configuration : 
-----------------------
Display connector > eDP


Reproducing steps:
------------------
1-Boot the system only with eDP connected
2-Download the script attached called "suspend_stress_test.shell" and execute
the following command as root: 
#./suspend_stress_test.shell --iterations=2000 --mode=disk --suspend=55-65
--wake=25-35 --abort=none --display=error --file=disk-results

Current results:
-----------------
After several S4 iterations the DUT hangs, around 750 in our case.

Expected results :
-----------------
The DUT should complete hibernate stress tests script after 2000 iterations

Additional info:
------------------
The file "S4_SKL_Tests.zip" contains the following :
-suspend_stress_test.shell ;  which is the script to run the tests
-dmesg.rtf , GPU_crash_dump_file, GPU_hang, Xorg ; logs grabbed from the DUT
-disk-results.rtf ; which contains the S4 results.

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