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

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [SNB/IVB/HSW/BYT ppgtt Regression]igt/gem_reset_stats/ban fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=73653">73653</a>
          </td>
        </tr>

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

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

        <tr>
          <th>Summary</th>
          <td>[SNB/IVB/HSW/BYT ppgtt Regression]igt/gem_reset_stats/ban fails
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>major
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

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

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

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

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

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

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

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=92118" name="attach_92118" title="dmesg">attachment 92118</a> <a href="attachment.cgi?id=92118&action=edit" title="dmesg">[details]</a></span>
dmesg

ystem Environment:
--------------------------
Platform: SNB/IVB/HSW/BYT
kernel:   (drm-intel-nightly)07db3e0b8568d81226e2e17dbb1b340668cb2287

Bug detailed description:
-------------------------
It fails on SNB/IVB/HSW/BYT with -nightly and -ppgtt kernel.It works well on
-fixes and -queued kernel.

The latest known good commit:f7698ba75fa283435f5077b9dfb4319d28b9de9a
The latest known bad commit: e91030380282240477864bf9d721b8c966acb6d9

output:
IGT-Version: 1.5-g1552aa2 (x86_64) (Linux:
3.13.0-rc7_drm-intel-nightly_07db3e_20140115+ x86_64)
4:1 reset status 1 differs from assumed 2
Test assertion failure function test_ban, file gem_reset_stats.c:528:
Last errno: 5, Input/output error
Failed assertion: _assert_reset_status(fd, ctx_good, (1 << 1)) == 0
Subtest ban: FAIL

Reproduce steps:
----------------------------
1. ./gem_reset_stats --run-subtest ban</pre>
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