[Bug 92355] New: [SKL Regression] igt/kms_fbc_crc cause DUT crash with DP screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92355

            Bug ID: 92355
           Summary: [SKL Regression] igt/kms_fbc_crc cause DUT crash with
                    DP screen
           Product: DRI
           Version: DRI git
          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: olivierx.berthier at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 118778
  --> https://bugs.freedesktop.org/attachment.cgi?id=118778&action=edit
kern.log file

Regression:
-----------
Yes, with the tag  drm-intel-testing-2015-09-28 the results was :
igt at kms_fbc_crc@blt: skip
igt at kms_fbc_crc@context: pass
igt at kms_fbc_crc@mmap_cpu: skip
igt at kms_fbc_crc@mmap_gtt: pass
igt at kms_fbc_crc@page_flip: pass
igt at kms_fbc_crc@page_flip_and_blt: pass
igt at kms_fbc_crc@page_flip_and_context: skip
igt at kms_fbc_crc@page_flip_and_mmap_cpu: pass
igt at kms_fbc_crc@page_flip_and_mmap_gtt: pass
igt at kms_fbc_crc@page_flip_and_render: skip
igt at kms_fbc_crc@render: skip

With the drm-intel-nightly 4.3.0-rc3 all tests failed and caused a DUT crash.

Setup:
------

Hardware
Platform: SKY LAKE Y A0 
CPU : Intel(R) Core(TM) m5-6Y57 CPU @ 1.10GHz (family: 6, model: 78  stepping:
3)
MCP : SKL-Y  D1 2+2 (ou ULX-D1)
QDF : QJK9 
CPU : SKL D0
Chipset PCH: Sunrise Point LP C1       
CRB : SKY LAKE Y LPDDR3 RVP3 CRB FAB2
Reworks : All Mandatories + FBS02 & FBS03, O-06

Software
BIOS : SKLSE2R1.R00.X097.B02.1509020030
ME FW : 11.0.0.1173
Ksc (EC FW): 1.19

kernel drm-intel-nightly 4.3.0-rc3 eb69e51
cairo: (HEAD, tag: 1.14.2) 93422b3cb5e0ef8104b8194c8873124ce2f5ea2d from
git://git.freedesktop.org/git/cairo
drm: (HEAD, tag: libdrm-2.4.64, tag: 2.4.64)
ab2fadabde3829b1ec56bd4756165dd9bd281488 from
git://git.freedesktop.org/git/mesa/drm
intel-driver: (HEAD, origin/master, origin/HEAD, master)
2a72f99d24714f2a58f400ef63b913d4cf9080b3 from
git://git.freedesktop.org/git/vaapi/intel-driver
libva: (HEAD, tag: libva-1.6.1, origin/v1.6-branch)
613eb962b45fbbd1526d751e88e0d8897af6c0e0 from
git://git.freedesktop.org/git/vaapi/libva
mesa: (HEAD, tag: mesa-10.6.7) 32efdc87cbf89cfe08ad9571cd756e27c803caa8 from
git://git.freedesktop.org/git/mesa/mesa
xf86-video-intel: (HEAD, origin/master, origin/HEAD, master)
f0fd4d500de03c30c7ce19915f85acadd1ca4e5d from
git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
xserver: (HEAD, tag: xorg-server-1.17.2)
2123f7682d522619f101b05fb75efa75dabbe371 from
git://git.freedesktop.org/git/xorg/xserver
intel-gpu-tools: (HEAD, origin/master, origin/HEAD, master)
1b492e311ce13fe4bc42f1edd5479441662d4855 from
git://git.freedesktop.org/git/xorg/app/intel-gpu-tools

Steps:
------
1. Boot without DP screen
2. Run the command : ./kms_fbc_crc
3. Boot with DP screen
4. Run the command : ./kms_fbc_crc

Actual result:
---------------
At the step 2 the results are skip.
At the step 4, for each subtest the DUT crash.

Expected result:
----------------
The tests result is pass or skip.

Output exemple:
---------------
/opt/X11R7/libexec/intel-gpu-tools/kms_fbc_crc --run-subtest context
IGT-Version: 1.12-g1f9e055 (x86_64) (Linux: 4.3.0-rc3-drm-intel-nightly+
x86_64)
Beginning context on pipe A, connector eDP-1
FBC not enabled
context on pipe A, connector eDP-1: SKIPPED
Beginning context on pipe B, connector eDP-1
FBC not enabled
context on pipe B, connector eDP-1: SKIPPED
Beginning context on pipe C, connector eDP-1
FBC not enabled
context on pipe C, connector eDP-1: SKIPPED
Beginning context on pipe A, connector HDMI-A-2
FBC not enabled
context on pipe A, connector HDMI-A-2: SKIPPED
Beginning context on pipe B, connector HDMI-A-2

...Nothing more.

I'll try to have a full dmesg log.

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