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        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [IVB]igt/kms_mmio_vs_cs_flip/setplane_vs_cs_flip fails"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=79291">79291</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>[IVB]igt/kms_mmio_vs_cs_flip/setplane_vs_cs_flip fails
          </td>
        </tr>

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

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

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

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>jinxianx.guo@intel.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </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>
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        <pre>Created <span class=""><a href="attachment.cgi?id=99923" name="attach_99923" title="dmesg">attachment 99923</a> <a href="attachment.cgi?id=99923&action=edit" title="dmesg">[details]</a></span>
dmesg

==System Environment==
--------------------------
Regression: No. 
It's new case

Non-working platforms: IVB

==kernel==
--------------------------
origin/drm-intel-nightly: 3dabfd0ec37a5079f40491f864f706a9aeb9d87b(works)
    drm-intel-nightly: 2014y-05m-26d-15h-56m-36s integration manifest
origin/drm-intel-next-queued: dbf0001f5cf7b72526ae62ac9a57c00176be0411(works)
    drm/i915: Keep vblank interrupts enabled while enabling/disabling planes   
origin/drm-intel-fixes: c1240bd2842f6ec26d7dc1d9c845a197a41d33fe(fails)
    drm/i915: Prevent negative relocation deltas from wrapping

==Bug detailed description==
-----------------------------
igt/kms_mmio_vs_cs_flip/setplane_vs_cs_flip fails.

Output:
./kms_mmio_vs_cs_flip --run-subtest setplane_vs_cs_flip
IGT-Version: 1.6-gff3c122 (x86_64) (Linux:
3.15.0-rc5_drm-intel-fixes_c1240b_20140527_debug+ x86_64)
Test assertion failure function test_plane, file kms_mmio_vs_cs_flip.c:339:
Last errno: 0, Success
Failed assertion: igt_crc_equal(&ref_crc, &crc)
Subtest setplane_vs_cs_flip: FAIL

==Reproduce steps==
---------------------------- 
1. ./kms_mmio_vs_cs_flip --run-subtest setplane_vs_cs_flip</pre>
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