[Bug 81728] [BYT-M/BSW Regression]igt/gem_exec_big fails

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Aug 6 22:51:46 PDT 2014


https://bugs.freedesktop.org/show_bug.cgi?id=81728

yaoming <ming.yao at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|bisect_pending              |

--- Comment #2 from yaoming <ming.yao at intel.com> ---
Bisect result shows 67988a04281d81d1ada079792cd01709316f6b8e is the first bad
commit

commit 67988a04281d81d1ada079792cd01709316f6b8e
Author: Jesse Barnes <jbarnes at virtuousgeek.org>
Date:   Thu May 29 14:33:21 2014 -0700

    drm/i915: enable PPGTT on VLV

    Working for real this time.  i915_ppgtt_info has all sorts of good stuff
    in it and X is running nicely on top.

    Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
    Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

:040000 040000 1a2d28e9f572dd4e4d81315e633b2e6d29693f77
0f00785ffb71c03473be4b7d24d5cfd4076c31d4 M      drivers

--------------------------
Revert that bad commit and test, it works well.

commit c4f7e69dab32859b621d09fe09c289e83405c3fd
Author:     YaoMing <ming.yao at intel.com>
AuthorDate: Thu Aug 7 13:08:32 2014 +0800
Commit:     YaoMing <ming.yao at intel.com>
CommitDate: Thu Aug 7 13:08:32 2014 +0800

root at x-bytm02:~# uname -a
Linux x-bytm02 3.15.0-rc3_kcloud_c4f7e6_20140807+ #2 SMP Thu Aug 7 13:14:27 EDT
2014 x86_64 x86_64 x86_64 GNU/Linux
root at x-bytm02:~# cd /GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests;
./gem_exec_big
IGT-Version: 1.7-gac31f19 (x86_64) (Linux: 3.15.0-rc3_kcloud_c4f7e6_20140807+
x86_64)


    Revert "drm/i915: enable PPGTT on VLV"

    This reverts commit 67988a04281d81d1ada079792cd01709316f6b8e.

--------------------------
The parents of first bad commit also works well.

commit 0001dbf1b3af36ca24f8228b53e476a961a2f4fe
Author:     Jani Nikula <jani.nikula at intel.com>
AuthorDate: Mon Jun 2 16:58:30 2014 +0300
Commit:     Daniel Vetter <daniel.vetter at ffwll.ch>
CommitDate: Mon Jun 2 17:42:03 2014 +0200

    drm/i915: tell the user if both KMS and UMS are disabled

    If both KMS is disabled (by i915.modeset=0 or nomodeset parameters) and
    UMS is disabled (by CONFIG_DRM_I915_UMS=n, the default), the user might
    not be aware his setup is not supported. Inform the users (and, by
    extension, the poor i915 developers having to read their dmesgs in bug
    reports) why their graphics experience might be lacking.

    A similar message was added on the UMS path in
    commit e147accbd19f55489dabdcc4dc3551cc3e3f2553
    Author: Jani Nikula <jani.nikula at intel.com>
    Date:   Thu Oct 10 15:25:37 2013 +0300

        drm/i915: tell the user KMS is required for gen6+

    but it won't be reached if CONFIG_DRM_I915_UMS=n since
    commit b30324adaf8d2e5950a602bde63030d15a61826f
    Author: Daniel Vetter <daniel.vetter at ffwll.ch>
    Date:   Wed Nov 13 22:11:25 2013 +0100

        drm/i915: Deprecated UMS support

    v2: Use DRM_DEBUG_DRIVER.

    Signed-off-by: Jani Nikula <jani.nikula at intel.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

Linux x-bytm02 3.15.0-rc3_kcloud_0001db_20140806+ #2 SMP Wed Aug 6 13:59:33 EDT
2014 x86_64 x86_64 x86_64 GNU/Linux
root at x-bytm02:~# cd /GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests;
./gem_exec_big
IGT-Version: 1.7-gac31f19 (x86_64) (Linux: 3.15.0-rc3_kcloud_0001db_20140806+
x86_64)

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