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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 - Navi10 null pointer dereference in kernel 5.4 while running Vulkan CTS"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=111968">111968</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Navi10 null pointer dereference in kernel 5.4 while running Vulkan CTS
          </td>
        </tr>

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

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

        <tr>
          <th>Hardware</th>
          <td>All
          </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>not set
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/AMDgpu
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>venemo@msn.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=145698" name="attach_145698" title="dmesg log with kernel 5.4-rc2 that shows the null pointer dereference">attachment 145698</a> <a href="attachment.cgi?id=145698&action=edit" title="dmesg log with kernel 5.4-rc2 that shows the null pointer dereference">[details]</a></span>
dmesg log with kernel 5.4-rc2 that shows the null pointer dereference

While running the Vulkan CTS, I encountered the following:

Running the cases dEQP-VK.memory.allocation.* will trigger a kernel NULL
pointer dereference in amdgpu on 5.4-rc2, see the attached dmesg log. After
this happens, the GPU can hang too, but doesn't always hang.

Hardware:
AMD Radeon RX 5700XT (reference card, made by Sapphire)
Dell U2718Q (two of them: one through HDMI, other through DisplayPort)
AMD Ryzen 7 3700X
MSI B450i

Software:
Fedora Workstation 31 x86_64
LLVM 9
Mesa master (what will be 19.3)</pre>
        </div>
      </p>


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