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From: Hiroki Sato <hrs@FreeBSD.org>
Date: Wed, 20 May 2009 00:55:26 +0000 (UTC)
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Subject: svn commit: r192411 - stable/7/release/doc/en_US.ISO8859-1/errata
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Author: hrs
Date: Wed May 20 00:55:26 2009
New Revision: 192411
URL: http://svn.freebsd.org/changeset/base/192411

Log:
  Document fxp(4) TSO issue on 7.2R.
  
  Submitted by:	delphij

Modified:
  stable/7/release/doc/en_US.ISO8859-1/errata/article.sgml

Modified: stable/7/release/doc/en_US.ISO8859-1/errata/article.sgml
==============================================================================
--- stable/7/release/doc/en_US.ISO8859-1/errata/article.sgml	Tue May 19 22:28:33 2009	(r192410)
+++ stable/7/release/doc/en_US.ISO8859-1/errata/article.sgml	Wed May 20 00:55:26 2009	(r192411)
@@ -183,6 +183,15 @@
       Errata Notice to fix this problem is planned after the
       release.</para>
 
+    <para>[20090507] A bug was found in the &man.fxp.4; driver.  This
+      would cause poor TCP performance when TSO is enabled, and the
+      receiver has a smaller MSS than the interface MTU setting.  To
+      workaround this issue, one can disable TSO by using
+      &man.ifconfig.8; <option>-tso</option> parameter (per interface
+      basis) or setting <varname>net.inet.tcp.tso</varname> to
+      <literal>0</literal> (globally on the system).  An Errata Notice
+      to fix this problem is planned after the release.</para>
+
   <sect1 id="late-news">
     <title>Late-Breaking News and Corrections</title>
 
@@ -190,5 +199,10 @@
       &man.malloc.3; implementation and threading library has been
       committed to the <literal>RELENG_7</literal> branch for public
       testing.</para>
+
+    <para>[20090507] A patch to solve the bug in the &man.fxp.4;
+      driver that caused poor TCP performance has been committed to
+      the <literal>RELENG_7</literal> branch for public
+      testing.</para>
   </sect1>
 </article>