From owner-freebsd-current@FreeBSD.ORG Fri Jan 9 00:55:48 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6E98E16A4D5; Fri, 9 Jan 2004 00:55:48 -0800 (PST) Received: from gate1.psi.de (gate1.psi.de [194.115.214.187]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1C63D43D41; Fri, 9 Jan 2004 00:55:45 -0800 (PST) (envelope-from thorsten@tgreiner.net) Received: from INFRA-BLN-EX2K.psi.de (host-138.194.115.213.psi.de [194.115.213.138]) by gate1.psi.de (8.11.3/8.11.3) with ESMTP id i098thE19434; Fri, 9 Jan 2004 09:55:43 +0100 Received: from infra-nev-exf.psi.de ([194.115.215.7]) by INFRA-BLN-EX2K.psi.de with Microsoft SMTPSVC(5.0.2195.6713); Fri, 9 Jan 2004 09:55:56 +0100 Received: from comm-nev1.nev.psi.de ([194.115.215.40]) by infra-nev-exf.psi.de with Microsoft SMTPSVC(5.0.2195.6713); Fri, 9 Jan 2004 09:55:56 +0100 Received: from localhost. (dhcp132.nev.psi.de [192.168.142.132]) by comm-nev1.nev.psi.de (8.8.8+Sun/8.8.8) with ESMTP id JAA21879; Fri, 9 Jan 2004 09:55:23 +0100 (MET) Received: from localhost. (localhost [127.0.0.1]) by localhost. (8.12.10/8.12.10) with ESMTP id i098tNsw004437; Fri, 9 Jan 2004 09:55:23 +0100 (CET) (envelope-from thorsten@tgreiner.net) Received: (from thorsten@localhost) by localhost. (8.12.10/8.12.10/Submit) id i098tM8Q004436; Fri, 9 Jan 2004 09:55:22 +0100 (CET) (envelope-from thorsten@tgreiner.net) X-Authentication-Warning: localhost.: thorsten set sender to thorsten@tgreiner.net using -f Date: Fri, 9 Jan 2004 09:55:22 +0100 From: Thorsten Greiner To: andre@FreeBSD.org Message-ID: <20040109085522.GB4246@tybalt.nev.psi.de> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="uAKRQypu60I7Lcqm" Content-Disposition: inline X-GPG-Fingerprint: ED45 DF41 BE30 6FF5 DC4F 15C3 4538 6598 E865 F66A User-Agent: Mutt/1.5.5.1i X-OriginalArrivalTime: 09 Jan 2004 08:55:56.0077 (UTC) FILETIME=[64C3F5D0:01C3D68E] cc: current@FreeBSD.org Subject: the TCP MSS resource exhaustion commit X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Fri, 09 Jan 2004 08:55:48 -0000 --uAKRQypu60I7Lcqm Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, I have some problems after this commit. The scenario is the following: I have a JBoss Application Server running on the FreeBSD 5.2-CURRENT machine which connects to an Oracle database (on a Sun). On several occasions the connection to the database is forcefully closed and I see the following messages in /var/log/messages: Jan 9 09:39:29 tybalt kernel: too many small tcp packets from XX.XX.XX.XX:61701, av. 108byte/packet, dropping connection Jan 9 09:39:35 tybalt kernel: too many small tcp packets from XX.XX.XX.XX:61701, av. 108byte/packet, dropping connection Jan 9 09:45:44 tybalt kernel: too many small tcp packets from XX.XX.XX.XX:61701, av. 109byte/packet, dropping connection Is there any w/around? What are the proper settings for net.inet.tcp.minmss and net.inet.tcp.minmssoverload in my scenario? Regards -Thorsten --=20 Williams and Holland's Law: If enough data is collected, anything may be proven by statistical methods. --uAKRQypu60I7Lcqm Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQE//mx6RThlmOhl9moRAtfLAJ4lOSRFyy2ZsZEayHygWK2VVC35MACgxIB2 56mPjWH8JrWyOJahLhWuQm4= =VfGV -----END PGP SIGNATURE----- --uAKRQypu60I7Lcqm--