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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 DP] dmesg of machine boot up with "call trace" and "*ERROR* mismatch in clock (expected 28319, found 0""
   href="https://bugs.freedesktop.org/show_bug.cgi?id=66444">66444</a>
          </td>
        </tr>

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

        <tr>
          <th>Summary</th>
          <td>[IVB DP] dmesg of machine boot up with "call trace" and "*ERROR* mismatch in clock (expected 28319, found 0"
          </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>All
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>yangweix.shui@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=81792" name="attach_81792" title="dmesg: boot up with call trace and error">attachment 81792</a> <a href="attachment.cgi?id=81792&action=edit" title="dmesg: boot up with call trace and error">[details]</a></span>
dmesg: boot up with call trace and error

Environment:
--------------------
Kernel: (drm-intel-next-queued)b110d88135c7aa43022c8f083079ba0e15737cc8
Author: Jesse Barnes <<a href="mailto:jbarnes@virtuousgeek.org">jbarnes@virtuousgeek.org</a>>
Date:   Wed Jun 26 01:38:19 2013 +0300

    drm/i915: flip on a no fb -> fb transition if crtc is active v3

Description:
--------------------
Test with latest -next-queued kernel, I find there's "call trace" and some
error message in dmesg during machine booting up. I trace back to some older
-next-queued kernels, and can't find a good commit.I also test it on another
IVB laptop, and this issue also exists.
Bug separated from: <a class="bz_bug_link 
          bz_status_VERIFIED  bz_closed"
   title="VERIFIED FIXED - [IVB regression dp] *ERROR* mismatch in adjusted_mode.flags (expected 1, found 0)"
   href="show_bug.cgi?id=65287">Bug #65287</a> - [IVB regression dp] *ERROR* mismatch in
adjusted_mode.flags (expected 1, found 0)

lspci:
--------------------
00:02.0 VGA compatible controller: Intel Corporation Device 0162 (rev 04)

Reproduce steps:
--------------------
1. boot up machine 
2. check the dmesg</pre>
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