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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 - radeon - ring 0 stalled - GPU lockup - SI"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=107545">107545</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>radeon - ring 0 stalled - GPU lockup - SI
          </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/Radeon
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dri-devel@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>julien.isorce@gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>* Steps to reproduce:
for i in {0..300}; do (glxgears &); done  (note that 100 might be enough
instead of 300)

* Actual result:
ring 0 stalled, gpu locakup, reset and x11 stops and cannot restart. The only
way is to reboot.

* Expected result:
The fps goes very low the more there are glxgears instances and no gpu lockup,
like with intel gpu.

* Infos:
card W600
mesa 18.2,
kernel 4.15.0-15-generic,
LLVM 7.0.0
xorg 1.20.99.1
xf86-video-ati 18.0.1.
(same result with kernel 4.4.0-130, mesa 12.0.6, llvm 3.8.0, DRM 2.43.0)

I was playing with the apitrace here 
<a class="bz_bug_link 
          bz_status_REOPENED "
   title="REOPENED - Packet0 not allowed and GPU fault detected errors with Serious Engine games"
   href="show_bug.cgi?id=87278#c31">https://bugs.freedesktop.org/show_bug.cgi?id=87278#c31</a> and decided to through
dozens of glxgears instances to see.</pre>
        </div>
      </p>


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