diff --git a/en_US.ISO8859-1/books/faq/book.sgml b/en_US.ISO8859-1/books/faq/book.sgml
index 3a3b73b4de..b47734007c 100644
--- a/en_US.ISO8859-1/books/faq/book.sgml
+++ b/en_US.ISO8859-1/books/faq/book.sgml
@@ -7802,6 +7802,20 @@ define(`confDELIVERY_MODE',`deferred')dnl</programlisting>
             provide this functionality.</para>
         </answer>
       </qandaentry>
+
+      <qandaentry>
+        <question id="vnlru">
+          <para>What is <literal>vnlru</literal>?</para>
+        </question>
+
+        <answer>
+          <para><literal>vnlru</literal> flushes and frees vnodes when
+            the system hits the <varname>kern.maxvnodes</varname>
+            limit.  This kernel thread sits mostly idle, and only
+            activates if you have a huge amount of RAM and are
+            accessing tens of thousands of tiny files.</para>
+        </answer>
+      </qandaentry>
     </qandaset>
   </chapter>