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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>high
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [ILK/SNB/IVB Bisected]I-G-T gem_seqno_wrap aborted"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=63533">63533</a>
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>yangweix.shui@intel.com
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>mika.kuoppala@intel.com
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[ILK/SNB/IVB Bisected]I-G-T gem_seqno_wrap aborted
          </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=77969" name="attach_77969" title="dmesg">attachment 77969</a> <a href="attachment.cgi?id=77969&action=edit" title="dmesg">[details]</a></span>
dmesg

System Environment:
--------------------------
Arch:             x86_64
Platform:         ironlake/sandybridge/ivybridge
Kernel: (drm-intel-next-queued)4ab815b56a3886ac01a8e5d031dfa9733650df2d

Bug detailed description:
-------------------------
It aborted on ironlake/sandybridge/ivybridge with drm-intel-next-queued kernel.
It doesn't happen on drm-intel-fixes kernel.

Bisect shows:a7ca33b673ee90b0a93ffdb18449256798f67786 is the first bad commit.
commit a7ca33b673ee90b0a93ffdb18449256798f67786
Author:     Mika Kuoppala <<a href="mailto:mika.kuoppala@linux.intel.com">mika.kuoppala@linux.intel.com</a>>
AuthorDate: Thu Apr 11 16:11:28 2013 +0300
Commit:     Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
CommitDate: Thu Apr 11 17:26:56 2013 +0200

    tests/gem_seqno_wrap: verify debugfs write with readback

    Make sure that debugfs entry works as expected by reading
    back the sequence number that was written.

    Signed-off-by: Mika Kuoppala <<a href="mailto:mika.kuoppala@intel.com">mika.kuoppala@intel.com</a>>
    Signed-off-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>

# echo $?
134

output:
seqno readback differs rb:0x7ffffff vs w:0x7fffffff
gem_seqno_wrap: gem_seqno_wrap.c:504: preset_run_once: Assertion
`write_seqno(0x7fffffff) == 0' failed.
Aborted (core dumped)

Reproduce steps:
----------------
1. ./gem_seqno_wrap</pre>
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