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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 - OpenCL applications freeze the desktop"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=98702">98702</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>OpenCL applications freeze the desktop
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>git
          </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>blocker
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Driver/intel
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>chris@chris-wilson.co.uk
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>t.artem@mailcity.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Hardware: laptop with Intel Core i5 6200U CPU
Software: Fedora 24 64 + all updates + kernel 4.8.6

Whenever I run any OpenCL applications my entire desktop almost completely
freezes: the mouse cursor barely moves, I cannot type anything, there's a huge
delay whenever I try to interact with anything. In short the desktop becomes
unusable.

This happens for instance when running:

$ clpeak --all-tests

for most tests CPU usage remains negligible.

I have verified the issue with both Intel proprietary OpenCL drivers (  Intel
intel-opencl-r3.0 (SRB3) Linux driver package ) and Beignet open source
drivers.</pre>
        </div>
      </p>


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