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      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [HSW] GPU hang when using full screen OpenGL compositor"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=83677">83677</a>
          </td>
        </tr>

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

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

        <tr>
          <th>Summary</th>
          <td>[HSW] GPU hang when using full screen OpenGL compositor
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>simon@farnz.org.uk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>XOrg CVS
          </td>
        </tr>

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

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr></table>
      <p>
        <div>
        <pre>I'm trying to persuade a Haswell G1820TE to run stable for long periods of
time, but I keep getting GPU hangs.

[  414.334623] [drm] stuck on render ring
[  414.336340] [drm] GPU HANG: ecode 0:0x87d3bffa, in screen_manager [878],
reason: Ring hung, action: reset
[  414.336351] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  414.336356] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  414.336360] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  414.336365] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[  414.336370] [drm] GPU crash dump saved to /sys/class/drm/card0/error

I've tried using i915.use_mmio_flip=1, but still get the hang.

What am I doing wrong?

Device is Intel(R) Celeron(R) CPU G1820TE @ 2.20GHz.

Packages:

 * kernel-3.17.0-0.rc4.git0.1.fc22.x86_64
 * libdrm-2.4.54-1.fc20.x86_64
 * mesa-dri-drivers-10.1.5-1.20140607.fc20.x86_64
 * xorg-x11-drv-intel-2.21.15-7.fc20.x86_64
 * xorg-x11-server-Xorg-1.14.4-5.fc20.x86_64

I can add more information if needed - I'll attach a gzip compressed version of
the error state from when I has use_mmio_flip=1</pre>
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