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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 8:2:0xc9835ff6, in Xorg [697], reason: Ring hung, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=99046">99046</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>GPU HANG: ecode 8:2:0xc9835ff6, in Xorg [697], reason: Ring hung, 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>j1102681@mvrht.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=128404" name="attach_128404" title="Dump of the GPU hang">attachment 128404</a> <a href="attachment.cgi?id=128404&action=edit" title="Dump of the GPU hang">[details]</a></span>
Dump of the GPU hang

When I woke up my laptop from suspension rarely I get a gpu hang.
Just to give an approximative idea about the frequency, maybe this happen once
every fifty suspensions.

The dmesg says:
[28377.998735] [drm] stuck on blitter ring
[28377.999292] [drm] GPU HANG: ecode 8:2:0xc9835ff6, in Xorg [697], reason:
Ring hung, action: reset
[28377.999294] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[28377.999295] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[28377.999296] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[28377.999297] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[28377.999298] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[28378.707379] [drm:gen8_do_reset [i915]] *ERROR* blitter ring: reset request
timeout
[28378.707389] drm/i915: Resetting chip after gpu hang
[28378.707405] [drm:i915_reset [i915]] *ERROR* Failed to reset chip: -5
[28383.775909] [drm:intel_lr_context_deferred_alloc [i915]] *ERROR* ring create
req: -5
[28384.275334] [drm:intel_lr_context_deferred_alloc [i915]] *ERROR* ring create
req: -5
[28384.772331] [drm:intel_lr_context_deferred_alloc [i915]] *ERROR* ring create
req: -5
[28385.267864] [drm:intel_lr_context_deferred_alloc [i915]] *ERROR* ring create
req: -5
[28385.785094] [drm:intel_lr_context_deferred_alloc [i915]] *ERROR* ring create
req: -5
[28609.499571] [drm:intel_lr_context_deferred_alloc [i915]] *ERROR* ring create
req: -5
[28610.057585] [drm:intel_lr_context_deferred_alloc [i915]] *ERROR* ring create
req: -5
[28610.608001] [drm:intel_lr_context_deferred_alloc [i915]] *ERROR* ring create
req: -5
[28611.143264] [drm:intel_lr_context_deferred_alloc [i915]] *ERROR* ring create
req: -5
[28611.703511] [drm:intel_lr_context_deferred_alloc [i915]] *ERROR* ring create
req: -5
[28612.242389] [drm:intel_lr_context_deferred_alloc [i915]] *ERROR* ring create
req: -5

I have a laptop with an Intel HD Graphics 5500 and the kernel 4.4.19-1</pre>
        </div>
      </p>


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