From owner-freebsd-current@FreeBSD.ORG Sun Mar 25 19:50:28 2007 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 6EC5716A403 for ; Sun, 25 Mar 2007 19:50:28 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from igloo.linux.gr (igloo.linux.gr [62.1.205.36]) by mx1.freebsd.org (Postfix) with ESMTP id DC03713C44B for ; Sun, 25 Mar 2007 19:50:27 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from kobe.laptop (dialup96.ach.sch.gr [81.186.70.96]) (authenticated bits=128) by igloo.linux.gr (8.13.8/8.13.8/Debian-3) with ESMTP id l2PJnslV019092 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Sun, 25 Mar 2007 22:50:05 +0300 Received: from kobe.laptop (kobe.laptop [127.0.0.1]) by kobe.laptop (8.13.8/8.13.8) with ESMTP id l2PJnljx087409; Sun, 25 Mar 2007 22:49:48 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) Received: (from keramida@localhost) by kobe.laptop (8.13.8/8.13.8/Submit) id l2PJnldN087408; Sun, 25 Mar 2007 22:49:47 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) Date: Sun, 25 Mar 2007 22:49:46 +0300 From: Giorgos Keramidas To: Nicolas Blais Message-ID: <20070325194946.GC79938@kobe.laptop> References: <20070324124732.GA767@nagual.pp.ru> <20070325165843.GA1558@kobe.laptop> <200703251348.58972.nb_root@videotron.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200703251348.58972.nb_root@videotron.ca> X-Hellug-MailScanner: Found to be clean X-Hellug-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-3.673, required 5, autolearn=not spam, ALL_TRUSTED -1.80, AWL 0.53, BAYES_00 -2.60, DNS_FROM_RFC_ABUSE 0.20) X-Hellug-MailScanner-From: keramida@ceid.upatras.gr X-Spam-Status: No Cc: freebsd-current@freebsd.org Subject: Re: Latest -current complete lockup (tcp changes?) 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: Sun, 25 Mar 2007 19:50:28 -0000 On 2007-03-25 13:48, Nicolas Blais wrote: > > The panic happens after a small amount of network activity, inside > > the TCP SACK code: > > > > --------------------------------------------------------------------------- > > Disabling SACK lets me use my laptop again: > > > > net.inet.tcp.sack.enable=0 > > > > without any panics. > > Same here. If you want to quickly crash your system, > net.inet.tcp.sack.enable=1 and start a torrent :) > > I couldn't find what was causing my desktop to crash until I STOPPED > trying to restart my torrent after boot :) . Though > net.inet.tcp.sack.enable=0 fixed it. Rebuilding a kernel will take a while here. If you can try reverting the following commit before I do, let me know if it fixes the panic. % andre 2007-03-23 18:33:21 UTC % % FreeBSD src repository % % Modified files: % sys/netinet tcp_input.c tcp_sack.c % Log: % Bring SACK option handling in tcp_dooptions() in line with all other % options and ajust users accordingly. % % Revision Changes Path % 1.326 +7 -4 src/sys/netinet/tcp_input.c % 1.35 +1 -0 src/sys/netinet/tcp_sack.c