From owner-freebsd-stable@FreeBSD.ORG Wed Jul 5 20:22:52 2006 Return-Path: X-Original-To: stable@FreeBSD.org Delivered-To: freebsd-stable@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D175016A4DE for ; Wed, 5 Jul 2006 20:22:52 +0000 (UTC) (envelope-from gibbs@scsiguy.com) Received: from ns1.scsiguy.com (ns1.scsiguy.com [70.89.174.89]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6FA9543D5E for ; Wed, 5 Jul 2006 20:22:50 +0000 (GMT) (envelope-from gibbs@scsiguy.com) Received: from [10.0.0.90] (63-138-13-146.customer.static.ip.paetec.net [63.138.13.146] (may be forged)) (authenticated bits=0) by ns1.scsiguy.com (8.13.6/8.13.6) with ESMTP id k65KMm7Z010545 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 5 Jul 2006 14:22:49 -0600 (MDT) (envelope-from gibbs@scsiguy.com) Date: Wed, 05 Jul 2006 14:22:42 -0600 From: "Justin T. Gibbs" To: Charles Swiger Message-ID: In-Reply-To: References: <86C10E7655AA8C2D8C433AAC@[10.0.0.90]> X-Mailer: Mulberry/3.1.6 (Win32) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Cc: stable@FreeBSD.org Subject: Re: fetch hangs on AMD64 RELENG_6 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Jul 2006 20:22:52 -0000 Hmm. Seems we close the window unexpectedly and the remote side doesn't retransmit when we open it. FreeBSD's acks stop once the window is fully open... aren't the acks supposed to retried longer? If not, shouldn't fetch eventually see a socket close event instead of hanging forever? A similar failure occurs with SACK disabled. -- Justin 13:31:44.695211 IP manna.mozilla.org.http > databus.avidyne.com.64531: . 9018128:9019496(1368) ack 179 win 1716 13:31:44.695229 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 8957936 win 32832 13:31:44.702704 IP manna.mozilla.org.http > databus.avidyne.com.64531: . 9019496:9020864(1368) ack 179 win 1716 13:31:44.702719 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 8957936 win 32832 13:31:44.710200 IP manna.mozilla.org.http > databus.avidyne.com.64531: . 9020864:9022232(1368) ack 179 win 1716 13:31:44.710215 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 8957936 win 32832 13:31:44.719444 IP manna.mozilla.org.http > databus.avidyne.com.64531: . 9022232:9023600(1368) ack 179 win 1716 13:31:44.719462 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 8957936 win 32832 13:31:44.727065 IP manna.mozilla.org.http > databus.avidyne.com.64531: . 8957936:8959304(1368) ack 179 win 1716 13:31:44.727089 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 0 13:31:44.727146 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 1680 13:31:44.727181 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 3216 13:31:44.727275 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 4752 13:31:44.727295 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 6288 13:31:44.727342 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 7824 13:31:44.727375 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 9360 13:31:44.727492 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 10896 13:31:44.727513 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 12432 13:31:44.727565 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 15504 13:31:44.727632 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 17040 13:31:44.727653 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 18576 13:31:44.727701 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 20112 13:31:44.727780 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 21648 13:31:44.727870 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 23184 13:31:44.727889 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 24720 13:31:44.727920 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 26256 13:31:44.727982 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 27792 13:31:44.728034 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 29328 13:31:44.728053 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 30864 13:31:44.728217 IP databus.avidyne.com.64531 > manna.mozilla.org.http: . ack 9023600 win 32400