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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [IVB/BYT Bisected]igt/gem_exec_big causes more than 10 minutes"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=88308">88308</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[IVB/BYT Bisected]igt/gem_exec_big causes more than 10 minutes
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86 (IA32)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>high
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>chris@chris-wilson.co.uk
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>huax.lu@intel.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
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        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=112106" name="attach_112106" title="dmesg">attachment 112106</a> <a href="attachment.cgi?id=112106&action=edit" title="dmesg">[details]</a></span>
dmesg

==System Environment==
--------------------------
Regression: yes

Non-working platforms: IVB/BYT

==kernel==
--------------------------
drm-intel-nightly/1113d085dfdba11c64772bfb4da26d1d3a163512
commit 1113d085dfdba11c64772bfb4da26d1d3a163512
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date:   Fri Jan 9 11:07:32 2015 +0100

    drm-intel-nightly: 2015y-01m-09d-10h-07m-04s UTC integration manifest

==Bug detailed description==
-----------------------------
It takes more than 10 minutes. It's igt regression.
Bisect shows: 1dddf32df97f1f1c5269d1bc3ece1d6183277603 is the first bad commit.
commit 1dddf32df97f1f1c5269d1bc3ece1d6183277603
Author:     Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
AuthorDate: Tue Nov 18 09:45:56 2014 +0000
Commit:     Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
CommitDate: Fri Jan 9 12:24:40 2015 +0000

    igt/gem_exec_big: Increase stress

    We should be able to execute batches up to the full GTT size (give or
    take fragmentation), so let's try!

    Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>

output:
IGT-Version: 1.9-g1dddf32 (x86_64) (Linux:
3.19.0-rc3_drm-intel-nightly_1113d0_20150111_debug+ x86_64)
^C
real    16m23.628s
user    0m0.317s
sys     16m17.387s

==Reproduce steps==
---------------------------- 
1. ./gem_exec_big</pre>
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