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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 --- - GPU HANG: ecode 0:0xf4e9fffe, in Xorg [1507], reason: Ring hung, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=82301">82301</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>GPU HANG: ecode 0:0xf4e9fffe, in Xorg [1507], reason: Ring hung, action: reset
          </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>alban.crequy@collabora.co.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>Created <span class=""><a href="attachment.cgi?id=104234" name="attach_104234" title="/sys/class/drm/card0/error">attachment 104234</a> <a href="attachment.cgi?id=104234&action=edit" title="/sys/class/drm/card0/error">[details]</a></span>
/sys/class/drm/card0/error

I was scrolling in gvim on Thinkpad x220 and everything became slow. New X
windows are completely black. It happened only 1 time so far but I upgraded to
the kernel to 3.16-rc6-amd64 (from Debian packages) only yesterday. It looks
similar to <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO --- - [BDW] kernel v3.15-rc7: GPU HANG: ecode 0:0x0fdf00ac, in Xorg [1060], reason: Ring hung, action: reset"
   href="show_bug.cgi?id=79248">Bug #79248</a> but it's a different ecode.

dmesg:

[22130.610086] [drm] stuck on render ring
[22130.610095] [drm] stuck on blitter ring
[22130.610624] [drm] GPU HANG: ecode 0:0xf4e9fffe, in Xorg [1507], reason: Ring
hung, action: reset
[22130.610628] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[22130.610630] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[22130.610633] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[22130.610635] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[22130.610636] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[22130.611134] [drm:i915_context_is_banned] *ERROR* gpu hanging too fast,
banning!
[22132.610790] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off

/sys/class/drm/card0/error:

GPU HANG: ecode 0:0xf4e9fffe, in Xorg [1507], reason: Ring hung, action: reset
Time: 1407423560 s 878412 us
Kernel: 3.16-rc6-amd64
Active process (on ring render): Xorg [1507]
Active process (on ring blt): Xorg [1507]
(etc., see attached file)</pre>
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