From owner-freebsd-stable@FreeBSD.ORG Thu Nov 10 11:49:43 2005 Return-Path: X-Original-To: freebsd-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 6876B16A41F for ; Thu, 10 Nov 2005 11:49:43 +0000 (GMT) (envelope-from darkgray@gmail.com) Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.200]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0A3C443D46 for ; Thu, 10 Nov 2005 11:49:42 +0000 (GMT) (envelope-from darkgray@gmail.com) Received: by zproxy.gmail.com with SMTP id 8so364719nzo for ; Thu, 10 Nov 2005 03:49:42 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=bGPIUpXsg4R61yHGMRkpI+QahOCMLer7Ar8JY6ufvE4TT9L4jlPvWPPghey3//hUIze8r7EmU/GncSSHLrSCNdQ6fXg+VE+nSl9fxWdutfLTeiJ7P4VnF5FPG5aszgWivxW89v9sM1CCCgTOLFDgEDdXrd5HRGhfcy5pMq6Kti0= Received: by 10.36.77.10 with SMTP id z10mr476091nza; Thu, 10 Nov 2005 03:49:42 -0800 (PST) Received: by 10.36.158.9 with HTTP; Thu, 10 Nov 2005 03:49:42 -0800 (PST) Message-ID: <7537818a0511100349y3196c19bg63352d6601c8f438@mail.gmail.com> Date: Thu, 10 Nov 2005 12:49:42 +0100 From: Patrik Roos To: freebsd-stable@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Subject: TCP error messages in 6.0 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: patrik@lolikon.org List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Nov 2005 11:49:43 -0000 After 6.0 hit stable, I decided to upgrade my machine. Uname now reads: FreeBSD pumpkin.lolikon.org 6.0-STABLE FreeBSD 6.0-STABLE #0: Sat Nov=20 5 08:12:50 CET 2005 =20 darkgray@pumpkin.lolikon.org:/usr/obj/usr/src/sys/PUMPKIN i386 After the upgrade, however, I started getting spurts of error messages posted to me in the daily security run output, looking like this: pumpkin.lolikon.org kernel log messages: +++ /tmp/security.rHb8JAYI Thu Nov 10 03:02:41 2005 +tcp_sack_output: Computed sack_bytes_retransmitted (2904) not the same as cached value (5808) +tcp_sack_output: Computed sack_bytes_retransmitted (2864) not the same as cached value (5768) +tcp_sack_output: Computed sack_bytes_retransmitted (2904) not the same as cached value (5808) +tcp_sack_output: Computed sack_bytes_retransmitted (2904) not the same as cached value (5808) +tcp_sack_output: Computed sack_bytes_retransmitted (2896) not the same as cached value (5800) These appear with a timestamp in /var/log/messages, and it seems I get 800 of these in one second, once a day at random timestamps. Never saw them in 5.4, so I'm assuming it's because of the 6.0 kernel. This is my ifconfig report on the NIC: xl0: flags=3D8843 mtu 1500 options=3D9 inet6 fe80::210:4bff:fe07:279d%xl0 prefixlen 64 scopeid 0x1 inet 192.168.0.3 netmask 0xffffff00 broadcast 192.168.0.255 ether 00:10:4b:07:27:9d media: Ethernet autoselect (100baseTX ) status: active Any ideas on cause and solution? I've never posted on this list before, so if you manage to help, it'll make a very good first impression. ;) Regards, Patrik Roos