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      <base href="https://bugs.freedesktop.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - REGRESSION: Intermittent hang on login kernel 4.10-pre-rc1"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=99134">99134</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>REGRESSION: Intermittent hang on login kernel 4.10-pre-rc1
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>DRI git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

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

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

        <tr>
          <th>Severity</th>
          <td>major
          </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>gwhite@kupulau.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>System hard locks intermittently on login.  This is as close as I've been able
to get to a backtrace.

Since it is intermittent, I've had no luck getting this bisected.

IF I get past login, everything is fine for the remainder of the session - or
at least, I've never had any issues, and I've had some very extended sessions.

Linux 4.9.0-GTW2+ #123 SMP Sat Dec 17 19:39:34 EST 2016 x86_64 GNU/Linux


Dec 17 19:40:10 ringle kernel:  worker_thread+0x4b/0x510
Dec 17 19:40:10 ringle kernel:  kthread+0x101/0x140
Dec 17 19:40:10 ringle kernel:  ? process_one_work+0x450/0x450
Dec 17 19:40:10 ringle kernel:  ? kthread_create_on_node+0x40/0x40
Dec 17 19:40:10 ringle kernel:  ret_from_fork+0x2a/0x40
Dec 17 19:40:10 ringle kernel: Code: ff ff ff 74 58 48 8d 7d c0 44 89 ea 4c 89
e6 e8 1d 36 ff ff 48 8b 43 08 48 8d 55 c0 48 89 df 48 8d b0 80 37 00 00 e8 c6
2e fc ff <48> 8b 50 78 48 85 d2 74 04 83 6a 20 01 48 89 c7 e8 41 71 fc ff 
Dec 17 19:40:10 ringle kernel: RIP: intel_unpin_fb_obj+0x5a/0xb0 RSP:
ffffc90003483dd8
Dec 17 19:40:10 ringle kernel: CR2: 0000000000000078
Dec 17 19:40:10 ringle kernel: ---[ end trace 54f93fd89be4561f ]---</pre>
        </div>
      </p>


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