able border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../doc/src/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
          The appended <code class="computeroutput"><span class="identifier">guard</span> <span class="identifier">page</span></code>
          is <span class="bold"><strong>not</strong></span> mapped to physical memory, only
          virtual addresses are used.
        </p><