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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 - GPU HANG: ecode 9:0:0x85dffffb, in X [1636], reason: Hang on render ring, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=105182">105182</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>GPU HANG: ecode 9:0:0x85dffffb, in X [1636], reason: Hang on render ring, action: reset
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </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>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>robinsbd@aps.anl.gov
          </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=137489" name="attach_137489" title="Intel GPU Crash Dump">attachment 137489</a> <a href="attachment.cgi?id=137489&action=edit" title="Intel GPU Crash Dump">[details]</a></span>
Intel GPU Crash Dump

When this issue happens, the X server and gdm process terminates and you end up
back at the login screen. The system itself is not hung, but you lose your
desktop session.

Kernel:  3.10.0-693.11.1.el7.x86_64
Linux Distro:  RHEL 7.4
Hardware:  Dell XPS 13 9350
Display Connector:  Just the laptop display

I have attached a GPU crash dump.

In addition, here are the relevant log entries from /var/log/messsages for the
last 2 times the GPU hung.

=====================
Feb 20 16:35:12 xecho kernel: [kern.info][250168.455912] [drm] GPU HANG: ecode
9:0:0x85dffffb, in X [1636], reason: Hang on render ring, action: reset
Feb 20 16:35:12 xecho kernel: [kern.info][250168.455916] [drm] GPU hangs can
indicate a bug anywhere in the entire gfx stack, including userspace.
Feb 20 16:35:12 xecho kernel: [kern.info][250168.455917] [drm] Please file a
_new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
Feb 20 16:35:12 xecho kernel: [kern.info][250168.455918] [drm] drm/i915
developers can then reassign to the right component if it's not a kernel issue.
Feb 20 16:35:12 xecho kernel: [kern.info][250168.455918] [drm] The gpu crash
dump is required to analyze gpu hangs, so please always attach it.
Feb 20 16:35:12 xecho kernel: [kern.info][250168.455919] [drm] GPU crash dump
saved to /sys/class/drm/card0/error
Feb 20 16:35:12 xecho kernel: [kern.notice][250168.455963] drm/i915: Resetting
chip after gpu hang
Feb 20 16:35:12 xecho kernel: [kern.info][250168.456024] [drm] RC6 on
Feb 20 16:35:12 xecho kernel: [kern.info][250168.467483] [drm] GuC firmware
load skipped
Feb 20 16:35:24 xecho kernel: [kern.notice][250180.401159] drm/i915: Resetting
chip after gpu hang
Feb 20 16:35:24 xecho kernel: [kern.info][250180.401251] [drm] RC6 on
Feb 20 16:35:24 xecho kernel: [kern.info][250180.417580] [drm] GuC firmware
load skipped
Feb 20 16:35:25 xecho gdm: [user.notice] Child process 1636 was already dead.
=====================
Feb 20 17:04:01 xecho kernel: [kern.notice][251897.385910] drm/i915: Resetting
chip after gpu hang
Feb 20 17:04:01 xecho kernel: [kern.info][251897.386001] [drm] RC6 on
Feb 20 17:04:01 xecho kernel: [kern.info][251897.402075] [drm] GuC firmware
load skipped
Feb 20 17:04:17 xecho kernel: [kern.notice][251913.380806] drm/i915: Resetting
chip after gpu hang
Feb 20 17:04:17 xecho kernel: [kern.info][251913.380882] [drm] RC6 on
Feb 20 17:04:17 xecho kernel: [kern.info][251913.396346] [drm] GuC firmware
load skipped
Feb 20 17:04:29 xecho kernel: [kern.notice][251925.384639] drm/i915: Resetting
chip after gpu hang
Feb 20 17:04:29 xecho kernel: [kern.info][251925.384717] [drm] RC6 on
Feb 20 17:04:29 xecho kernel: [kern.info][251925.400945] [drm] GuC firmware
load skipped
Feb 20 17:04:31 xecho gdm: [user.notice] Child process 16301 was already dead.
=====================</pre>
        </div>
      </p>


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