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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 - [radeonsi] Tonga (Radeon R9 380) hangs on running hello world OpenCL program"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=93374">93374</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[radeonsi] Tonga (Radeon R9 380) hangs on running hello world OpenCL program
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </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>Drivers/Gallium/radeonsi
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>rivanvx@gmail.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>dri-devel@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>I'm running a hello world PyOpenCL program from here:
<a href="http://documen.tician.de/pyopencl/">http://documen.tician.de/pyopencl/</a> I get the same issue with a different OpenCL
program, e.g. one from <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [r600g] OpenCL atomic_cmpxchg() segmentation fault on Caicos"
   href="show_bug.cgi?id=93370">bug 93370</a>.

The message shown in the console is the same as <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Tonga VM Faults since llvm ScheduleDAGInstrs: Rework schedule graph builder."
   href="show_bug.cgi?id=93264">bug 93264</a>, but without the VM
line:

amdgpu 0000:01:00.0: GPU fault detected: 147 0x04588402
amdgpu 0000:01:00.0:   VM_CONTEXT1_PROECTION_FAULT_ADDR   0x0004008B
amdgpu 0000:01:00.0:   VM_CONTEXT1_PROECTION_FAULT_STATUS 0x08084002

The system is unresponsive and one has to do hard reset.

I tried reverting to one commit before c0a189c3792865257c1383f176e5401373ed2270
mentioned in the <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Tonga VM Faults since llvm ScheduleDAGInstrs: Rework schedule graph builder."
   href="show_bug.cgi?id=93264">bug 93264</a>, that is 26ddca196954ccfa697102b46118956ad616073a.
However, this did not fix the problem.</pre>
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