[Bug 95488] [APL/BXT/BYT] igt / gem_exec_flush / uc before fails (speculative fetching)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95488

Elio <elio.martinez.monroy at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      i915 platform|                            |BYT
            Summary|[APL/BXT] igt /             |[APL/BXT/BYT] igt /
                   |gem_exec_flush / uc before  |gem_exec_flush / uc before
                   |fails (speculative          |fails (speculative
                   |fetching)                   |fetching)

--- Comment #14 from Elio <elio.martinez.monroy at intel.com> ---
The problem persist with the following configuration:

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: 4.9.0-rc4 91e164f branch drm-intel-nightly from
http://cgit.freedesktop.org/drm-intel/ 
commit 91e164fea17d3e5366048b6eae3c6eea4e14e9fe
Author: Ville Syrjälä <ville.syrjala at linux.intel.com>
Date: Mon Nov 14 16:31:06 2016 +0200
drm-intel-nightly: 2016y-11m-14d-14h-30m-30s UTC integration manifest

libdrm-2.4.71-13 670f1e4 from git://anongit.freedesktop.org/mesa/drm
mesa: mesa-13.0.0 df1b0a5 from git://anongit.freedesktop.org/mesa/mesa
cairo 1.15.2 db8a7f1 from git://anongit.freedesktop.org/cairo
xorg-server-1.18.99.902-2 7513da4 from
git://git.freedesktop.org/git/xorg/xserver
xf86-video-intel 2.99.917-731 d1d14f2 from
git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
libva-1.7.2-40 3a7547b from git://git.freedesktop.org/git/vaapi/libva 
vaapi-intel-driver: 1.7.2-157 55a538c from
git://git.freedesktop.org/git/vaapi/intel-driver
intel-gpu-tools-1.16-132 773ac7c from
http://anongit.freedesktop.org/git/xorg/app/intel-gpu-tools.git

External screen: DELL U2312HM (VGA)

Same test cases:

Error:

 ./gem_exec_flush --run-subtest uc-ro-before-blt
IGT-Version: 1.16-g40a3ada (x86_64) (Linux: 4.9.0-rc6-nightly+ x86_64)
Has LLC? no
CPU features: x86-64, sse2, sse3, ssse3, sse4.1, sse4.2
Test requirement not met in function gem_require_ring, file
ioctl_wrappers.c:1484:
Test requirement: gem_has_ring(fd, ring)
Test requirement not met in function gem_require_ring, file
ioctl_wrappers.c:1484:
Test requirement: gem_has_ring(fd, ring)
(gem_exec_flush:27357) CRITICAL: Test assertion failure function run, file
gem_exec_flush.c:321:
(gem_exec_flush:27357) CRITICAL: Failed assertion: map[i] == i ^ 0xffffffff
(gem_exec_flush:27357) CRITICAL: error: 0x24e != 0xfffffdb1
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [run+0xa14]
  #2 [__real_main544+0xb11]
  #3 [main+0x35]
  #4 [__libc_start_main+0xf0]
  #5 [_start+0x29]
  #6 [<unknown>+0x29]
child 0 failed with exit status 99
Subtest uc-ro-before-blt failed.
No log.
Subtest uc-ro-before-blt: FAIL (68.889s)
Test requirement not met in function gem_require_ring, file
ioctl_wrappers.c:1484:

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