From owner-freebsd-stable@FreeBSD.ORG Sun Aug 29 14:09:39 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 33BF01065670; Sun, 29 Aug 2010 14:09:39 +0000 (UTC) (envelope-from mike@sentex.net) Received: from smarthost2.sentex.ca (smarthost2-6.sentex.ca [IPv6:2607:f3e0:80:80::2]) by mx1.freebsd.org (Postfix) with ESMTP id E853E8FC17; Sun, 29 Aug 2010 14:09:38 +0000 (UTC) Received: from lava.sentex.ca (pyroxene.sentex.ca [199.212.134.18]) by smarthost2.sentex.ca (8.14.4/8.14.4) with ESMTP id o7TE9Q9W021201 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sun, 29 Aug 2010 10:09:26 -0400 (EDT) (envelope-from mike@sentex.net) Received: from mdt-xp.sentex.net (simeon.sentex.ca [192.168.43.27]) by lava.sentex.ca (8.14.4/8.14.3) with ESMTP id o7TE9QCJ082862; Sun, 29 Aug 2010 10:09:26 -0400 (EDT) (envelope-from mike@sentex.net) Message-Id: <201008291409.o7TE9QCJ082862@lava.sentex.ca> X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Sun, 29 Aug 2010 10:09:20 -0400 To: freebsd-stable@freebsd.org From: Mike Tancsa Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Scanned-By: MIMEDefang 2.67 on 205.211.164.50 Cc: andre@freebsd.org Subject: syncache errors 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: Sun, 29 Aug 2010 14:09:39 -0000 After upgrading to a recent STABLE, I have been seeing the following sporadic errors Aug 28 04:15:15 smarthost2 kernel: TCP: [xx.yy.165.120]:53617 to [xx.yy.164.50]:25; syncache_socket: Socket create failed due to limits or memory shortage this is with FreeBSD 8.1-STABLE #7: Wed Aug 25 15:32:05 EDT 2010 and the previous kernel was from July 20th. The odd thing is that the error is triggered from a RELENG_6 host only it would seem. I noticed there are a number of syncache and tcp updates to RELENG_8, is it possible this is related ? I dont have any specific tweaks in /etc/sysctl.conf other than net.inet.tcp.log_in_vain: 1 net.inet.udp.log_in_vain: 1 net.inet.tcp.syncache.rst_on_sock_fail: 1 net.inet.tcp.syncache.rexmtlimit: 3 net.inet.tcp.syncache.hashsize: 512 net.inet.tcp.syncache.count: 0 net.inet.tcp.syncache.cachelimit: 15360 net.inet.tcp.syncache.bucketlimit: 30 ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet since 1994 www.sentex.net Cambridge, Ontario Canada www.sentex.net/mike