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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 and system crash with Dota 2 using Vulkan"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=107941">107941</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>GPU hang and system crash with Dota 2 using Vulkan
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </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>leozinho29_eu@hotmail.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=141570" name="attach_141570" title="Compressed file with relevant files">attachment 141570</a> <a href="attachment.cgi?id=141570&action=edit" title="Compressed file with relevant files">[details]</a></span>
Compressed file with relevant files

When playing Dota 2 with Vulkan, it's noticed that there are many occasions
where a GPU hang happens and, if using 4.18 or newer kernel, causes a system
crash a few seconds later. The GPU hang is observed with 4.17.19, but the
system crash is not.

The workaround is to use INTEL_DEBUG=nohiz as one of the environment variables,
but there is performance degradation. 

The attached file has the following content:

The GPU hang log, it has 2,6 MB;
The dmesg output which unfortunately has nothing about the system crash;
One screenshot (with the two monitors) showing what was the screen when the GPU
hang happened;
One screenshot (single monitor) showing Dota 2's video settings;
One sound file with an approximation of what was the sound when the system
crashed. Please note the sound is unpleasing to hear.

The GPU hang seems similar to
<a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - GPU Hang when Playing DiRT 3 Complete Edition using Steam Play with DXVK"
   href="show_bug.cgi?id=107760">https://bugs.freedesktop.org/show_bug.cgi?id=107760</a>

Dota 2 is being affected by <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - ANV driver doesn't release memory"
   href="show_bug.cgi?id=107899">https://bugs.freedesktop.org/show_bug.cgi?id=107899</a>
too.

Processor: Intel Core i3-6100U;
Video: Intel HD Graphics 520;
Architecture: amd64;
Mesa: 18.3.0-devel (git-914bd3014f);
Kernel version: drm-tip (feeccde66999c5e87be3550f2159e5d7eeb61c67)
Distribution: Xubuntu 18.04.1 amd64.</pre>
        </div>
      </p>


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