From owner-freebsd-current@FreeBSD.ORG Wed Jun 10 18:43:58 2009 Return-Path: Delivered-To: current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BDA441065673 for ; Wed, 10 Jun 2009 18:43:58 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id 8FE2E8FC0C for ; Wed, 10 Jun 2009 18:43:58 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net [66.111.2.69]) by cyrus.watson.org (Postfix) with ESMTPSA id 40D0F46B2D for ; Wed, 10 Jun 2009 14:43:58 -0400 (EDT) Received: from jhbbsd.hudson-trading.com (unknown [209.249.190.8]) by bigwig.baldwin.cx (Postfix) with ESMTPA id 2DB6C8A06C for ; Wed, 10 Jun 2009 14:43:57 -0400 (EDT) From: John Baldwin To: current@FreeBSD.org Date: Wed, 10 Jun 2009 14:43:51 -0400 User-Agent: KMail/1.9.7 References: <200906101827.n5AIRFoR022115@svn.freebsd.org> In-Reply-To: <200906101827.n5AIRFoR022115@svn.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200906101443.51798.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Wed, 10 Jun 2009 14:43:57 -0400 (EDT) X-Virus-Scanned: clamav-milter 0.95.1 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.5 required=4.2 tests=AWL,BAYES_00,RDNS_NONE autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: Subject: HEADSUP: ABI change for some network utilities X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Jun 2009 18:43:59 -0000 On Wednesday 10 June 2009 2:27:15 pm John Baldwin wrote: > Author: jhb > Date: Wed Jun 10 18:27:15 2009 > New Revision: 193941 > URL: http://svn.freebsd.org/changeset/base/193941 > > Log: > Change a few members of tcpcb that store cached copies of ticks to be ints > instead of unsigned longs. This fixes a few overflow edge cases on 64-bit > platforms. Specifically, if an idle connection receives a packet shortly > before 2^31 clock ticks of uptime (about 25 days with hz=1000) and the keep > alive timer fires after 2^31 clock ticks, the keep alive timer will think > that the connection has been idle for a very long time and will immediately > drop the connection instead of sending a keep alive probe. Note that this changes the layout of 'struct tcpcb' which is used by at least netstat, so you will need to update world + kernel. -- John Baldwin