<html>
    <head>
      <base href="https://bugs.freedesktop.org/">
    </head>
    <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 zoom [29759], reason: Hang on render ring, action: reset"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=107968">107968</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>GPU HANG: ecode 9:0:0x85dffffb, in zoom [29759], 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>marcin@owsiany.pl
          </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=141620" name="attach_141620" title="/sys/class/drm/card0/error">attachment 141620</a> <a href="attachment.cgi?id=141620&action=edit" title="/sys/class/drm/card0/error">[details]</a></span>
/sys/class/drm/card0/error

My case sounds similar to <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - GPU HANG: ecode 9:0:0x85dffffb, in zoom [1000], reason: Hang on render ring, action: reset"
   href="show_bug.cgi?id=101203">https://bugs.freedesktop.org/show_bug.cgi?id=101203</a>
but dmesg told me to file a new bug, so here it is.

Using Debian stable with kernel 4.9.0-8-amd64 #1 SMP Debian 4.9.110-3+deb9u4
(2018-08-21) on Lenovo T580 laptop with the following device:

00:02.0 VGA compatible controller: Intel Corporation Device 5917 (rev 07)
(prog-if 00 [VGA controller])
        Subsystem: Lenovo Device 225a
        Flags: bus master, fast devsel, latency 0, IRQ 143
        Memory at e7000000 (64-bit, non-prefetchable) [size=16M]
        Memory at c0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at e000 [size=64]
        [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: <access denied>
        Kernel driver in use: i915
        Kernel modules: i915


I use zoom conference approximately once per day on average, and it crashes due
to this hang in about one out of 3 uses at seemingly random times while the
conference is on. I do not know how to reproduce this at will.

In my case the message was:
[275903.554471] [drm] GPU HANG: ecode 9:0:0x85dffffb, in zoom [29759], reason:
Hang on render ring, action: reset
[275903.554474] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[275903.554475] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[275903.554476] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[275903.554477] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[275903.554478] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[275903.554576] drm/i915: Resetting chip after gpu hang
[275903.554650] [drm] RC6 on
[275903.574354] [drm] GuC firmware load skipped
[275914.529457] drm/i915: Resetting chip after gpu hang
[275914.529542] [drm] RC6 on
[275914.547604] [drm] GuC firmware load skipped

Attaching the crash dump.

I wonder whether someone would be able to figure out a specific fix that could
be backported to Debian stable's kernel?</pre>
        </div>
      </p>


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