From owner-svn-src-releng@FreeBSD.ORG  Sat Aug 24 15:09:05 2013
Return-Path: <owner-svn-src-releng@FreeBSD.ORG>
Delivered-To: svn-src-releng@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTP id AD180913;
 Sat, 24 Aug 2013 15:09:05 +0000 (UTC) (envelope-from gjb@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org
 [IPv6:2001:1900:2254:2068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id 9AC5322C7;
 Sat, 24 Aug 2013 15:09:05 +0000 (UTC)
Received: from svn.freebsd.org ([127.0.1.70])
 by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id r7OF95qr074593;
 Sat, 24 Aug 2013 15:09:05 GMT (envelope-from gjb@svn.freebsd.org)
Received: (from gjb@localhost)
 by svn.freebsd.org (8.14.7/8.14.5/Submit) id r7OF95dG074592;
 Sat, 24 Aug 2013 15:09:05 GMT (envelope-from gjb@svn.freebsd.org)
Message-Id: <201308241509.r7OF95dG074592@svn.freebsd.org>
From: Glen Barber <gjb@FreeBSD.org>
Date: Sat, 24 Aug 2013 15:09:05 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-releng@freebsd.org
Subject: svn commit: r254789 - releng/9.2/sys/netinet
X-SVN-Group: releng
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-releng@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: SVN commit messages for the release engineering / security commits to
 the src tree <svn-src-releng.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-releng>,
 <mailto:svn-src-releng-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-releng>
List-Post: <mailto:svn-src-releng@freebsd.org>
List-Help: <mailto:svn-src-releng-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-releng>,
 <mailto:svn-src-releng-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 24 Aug 2013 15:09:05 -0000

Author: gjb
Date: Sat Aug 24 15:09:05 2013
New Revision: 254789
URL: http://svnweb.freebsd.org/changeset/base/254789

Log:
  Default net.inet.tcp.experimental.initcwnd10 to 0 in releng/9.2.
  
  Concerns have been raised regarding enabling initcwnd10 by default
  in the stable/ branch, so as a cautionary measure, turn this off
  for the 9.2-RELEASE.  This sysctl is still available for those
  who want to enable this on their own systems.
  
  This is a direct commit to releng/9.2.
  
  Discussed with:	re
  Approved by:	re (marius)

Modified:
  releng/9.2/sys/netinet/tcp_input.c

Modified: releng/9.2/sys/netinet/tcp_input.c
==============================================================================
--- releng/9.2/sys/netinet/tcp_input.c	Sat Aug 24 14:49:51 2013	(r254788)
+++ releng/9.2/sys/netinet/tcp_input.c	Sat Aug 24 15:09:05 2013	(r254789)
@@ -161,7 +161,7 @@ SYSCTL_VNET_INT(_net_inet_tcp, OID_AUTO,
 SYSCTL_NODE(_net_inet_tcp, OID_AUTO, experimental, CTLFLAG_RW, 0,
     "Experimental TCP extensions");
 
-VNET_DEFINE(int, tcp_do_initcwnd10) = 1;
+VNET_DEFINE(int, tcp_do_initcwnd10) = 0;
 SYSCTL_VNET_INT(_net_inet_tcp_experimental, OID_AUTO, initcwnd10, CTLFLAG_RW,
     &VNET_NAME(tcp_do_initcwnd10), 0,
     "Enable draft-ietf-tcpm-initcwnd-05 (Increasing initial CWND to 10)");