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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 - [BDW]igt/kms_cursor_crc/cursor-128x128-onscreen sporadically causes [i915]] *ERROR* The master control interrupt lied (SDE)!"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=90058">90058</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[BDW]igt/kms_cursor_crc/cursor-128x128-onscreen sporadically causes [i915]] *ERROR* The master control interrupt lied (SDE)!
          </td>
        </tr>

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

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

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

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

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </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>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=115138" name="attach_115138" title="dmesg">attachment 115138</a> <a href="attachment.cgi?id=115138&action=edit" title="dmesg">[details]</a></span>
dmesg

==System Environment==
--------------------------
Regression: not sure

Non-working platforms: BDW

==kernel==
--------------------------
drm-intel-nightly/d600654ab94b325f253e267422dcf60302120ea0
commit d600654ab94b325f253e267422dcf60302120ea0
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date:   Thu Apr 16 17:54:10 2015 +0200

    drm-intel-nightly: 2015y-04m-16d-15h-53m-28s UTC integration manifest

==Bug detailed description==
-----------------------------
It sporadically causes <3>[  138.640445] [drm:gen8_irq_handler [i915]] *ERROR*
The master control interrupt lied (SDE)!. Run it 2 cycles, it happens once.

Following cases also have this error:
igt@kms_cursor_crc@cursor-128x128-random
igt@kms_cursor_crc@cursor-128x128-sliding
igt@kms_cursor_crc@cursor-256x256-offscreen
igt@kms_cursor_crc@cursor-256x256-onscreen
igt@kms_cursor_crc@cursor-256x256-random
igt@kms_cursor_crc@cursor-64x64-offscreen
igt@kms_cursor_crc@cursor-64x64-onscreen
igt@kms_cursor_crc@cursor-64x64-random
igt@kms_cursor_crc@cursor-64x64-sliding

output:
IGT-Version: 1.10-gbeddb3b (x86_64) (Linux:
4.0.0_drm-intel-nightly_d60065_20150417+ x86_64)
Beginning cursor-128x128-onscreen on pipe A, connector eDP-1
............................
cursor-128x128-onscreen on pipe A, connector eDP-1: PASSED

Beginning cursor-128x128-onscreen on pipe B, connector eDP-1
............................
cursor-128x128-onscreen on pipe B, connector eDP-1: PASSED

Beginning cursor-128x128-onscreen on pipe C, connector eDP-1
............................
cursor-128x128-onscreen on pipe C, connector eDP-1: PASSED

Subtest cursor-128x128-onscreen: SUCCESS (24.188s)

==Reproduce steps==
---------------------------- 
1. ./kms_cursor_crc --run-subtest cursor-128x128-onscreen</pre>
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