[Bug 98109] New: [BYT] [Basic] clflush broken (gem_exec_flush basic-uc-prw-default)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98109

            Bug ID: 98109
           Summary: [BYT] [Basic] clflush broken (gem_exec_flush
                    basic-uc-prw-default)
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: blocker
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: christophe.prigent at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 127062
  --> https://bugs.freedesktop.org/attachment.cgi?id=127062&action=edit
BYT__gem_exec_flush__basic-uc-prw-default__output

Platform BYT: Acer Aspire XC-603
CPU: Intel(R) Pentium(R) CPU  J2900  @ 2.41GHz (family 6, model 55, stepping 8)
Motherboard: Aspire XC-603
GPU: Intel® HD Graphics - Intel Corporation Atom Processor Z36xxx/Z37xxx Series
Graphics & Display (rev 0e)

Software
Bios: P11-B2
Linux distribution: Ubuntu 16.04 64 bits
Kernel: 4.8.0-rc8 aab15c2 from http://cgit.freedesktop.org/drm-intel/
  commit 71d126590e2fa6d65d93fe3586d55ddf9f6c39a6
  Author: Daniel Vetter <daniel.vetter at ffwll.ch>
  Date:   Mon Oct 3 15:23:29 2016 +0200
  drm-intel-nightly: 2016y-10m-03d-13h-22m-56s UTC integration manifest
libdrm-2.4.70-16 207efb1 from git://anongit.freedesktop.org/mesa/drm
mesa: mesa-12.0.0 8b06176 from git://anongit.freedesktop.org/mesa/mesa
cairo 1.15.2 db8a7f1 from git://anongit.freedesktop.org/cairo
xorg-server-1.18.99.901-51 c9b8ce7 from
git://git.freedesktop.org/git/xorg/xserver
xf86-video-intel 2.99.917-708 8f33f80 from
git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
libva-1.7.2-38 3b7e499 from git://git.freedesktop.org/git/vaapi/libva 
vaapi-intel-driver: 1.7.2-127 0287ca6 from
git://git.freedesktop.org/git/vaapi/intel-driver
IGT: intel-gpu-tools-1.16-41 1a76d88 from
http://anongit.freedesktop.org/git/xorg/app/intel-gpu-tools.git

External screen: DELL U2311Hb (VGA)

Steps:
------
1. Execute IGT test:
# ./gem_exec_flush --r basic-uc-pr

Actual result:
--------------
1. Test is Pass

Expected result:
----------------
1. Test is fail

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