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      <base href="https://bugs.freedesktop.org/">
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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 - [BAT] [HSW] gem_exec_suspend@basic-s3 hang occasionally"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=97817">97817</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[BAT] [HSW] gem_exec_suspend@basic-s3 hang occasionally
          </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>jari.tahvanainen@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>On fi-hsw-4770k gem_exec_suspend@basic-s3 does not complete.

E.g. for the last incomplete run CI_DRM_1635 (14-Sep-2016) dmesg tail has
...
[  355.860011] gem_exec_suspend: executing
[  355.860109] [drm:i915_gem_open] 
[  355.861772] [drm:i915_gem_open] 
[  355.862351] gem_exec_suspend: starting subtest basic
[  355.958711] gem_exec_suspend: exiting, ret=0
[  356.096236] gem_exec_suspend: executing
[  356.096337] [drm:i915_gem_open] 
[  356.097855] [drm:i915_gem_open] 
[  356.098518] gem_exec_suspend: starting subtest basic-S3
while on the execution CI_DRM_1637 having Success the dmesg looks like
...
[  332.936844] gem_exec_suspend: executing
[  332.936940] [drm:i915_gem_open] 
[  332.938575] [drm:i915_gem_open] 
[  332.939160] gem_exec_suspend: starting subtest basic
[  333.035632] gem_exec_suspend: exiting, ret=0
[  333.170070] gem_exec_suspend: executing
[  333.170166] [drm:i915_gem_open] 
[  333.171718] [drm:i915_gem_open] 
[  333.172307] gem_exec_suspend: starting subtest basic-S3
[  333.686847] PM: Syncing filesystems ... done.
[  333.687901] Freezing user space processes ... (elapsed 0.001 seconds) done.
[  333.689489] Double checking all user space processes after OOM killer
disable... (elapsed 0.000 seconds) 
[  333.689547] Freezing remaining freezable tasks ... (elapsed 0.001 seconds)
done.
[  333.690692] Suspending console(s) (use no_console_suspend to debug)
[  333.692391] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[  333.692985] sd 0:0:0:0: [sda] Stopping disk
[  333.697233] serial 00:05: disabled
[  333.699109] [drm:connected_sink_compute_bpp] [CONNECTOR:44:HDMI-A-2]
checking for sink bpp constrains
...</pre>
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