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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 - [SKL] GPU HANG: ecode 9:0:0x85dfbcfb, in siemcy [3440], reason: Hang on render ring, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=99525">99525</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[SKL] GPU HANG: ecode 9:0:0x85dfbcfb, in siemcy [3440], reason: Hang on render ring, action: reset
          </td>
        </tr>

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

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

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

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

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

        <tr>
          <th>Severity</th>
          <td>normal
          </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>bhatcher@oblong.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>Created <span class=""><a href="attachment.cgi?id=129132" name="attach_129132" title="GPU crash dump file">attachment 129132</a> <a href="attachment.cgi?id=129132&action=edit" title="GPU crash dump file">[details]</a></span>
GPU crash dump file

Bug description: Having random reboot issues with the system, but usually not
accompanied by this GPU hang. Dual displays running @ 4k60. After the random
reboots, both displays work during boot but DP1 does not display once X has
loaded.

[68833.361334] [drm] GPU HANG: ecode 9:0:0x85dfbcfb, in siemcy [3440], reason:
Hang on render ring, action: reset
[68833.361335] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[68833.361335] [drm] Please file a new bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[68833.361335] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[68833.361335] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[68833.361336] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[68833.361351] drm/i915: Resetting chip after gpu hang
[68833.361405] [drm] RC6 on
[68833.373251] [drm] GuC firmware load skipped
[68844.433130] drm/i915: Resetting chip after gpu hang
[68844.433165] [drm] RC6 on
[68844.447297] [drm] GuC firmware load skipped

System Environment:
-- Chipset: Intel i7-6770HQ with Iris HD 580 GPU
-- Sys Architecture: 64-bit
-- xf86-video-intel: not installed
-- xserver: 1:7.7+13ubun / 2:1.18.4-0ub
-- mesa: 1:12.1~git16
-- libdrm: 2.4.71+git16
-- kernel: GNU/Linux 4.9.0-040900-generic x86_64
-- Linux Distro: Ubuntu 16.04.1 LTS
-- Machine Model: Intel Skull Canyon NUC (NUC6i7KYK)
-- Display connector: DP1 is mDP->HDMI, DP2 is HDMI

Reproducing steps: Unknown</pre>
        </div>
      </p>


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