From owner-freebsd-net@FreeBSD.ORG Mon Oct 3 15:31:13 2005 Return-Path: X-Original-To: net@freebsd.org Delivered-To: freebsd-net@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id F22D316A41F; Mon, 3 Oct 2005 15:31:12 +0000 (GMT) (envelope-from pertti.kosunen@pp.nic.fi) Received: from fep19.inet.fi (fep19.inet.fi [194.251.242.244]) by mx1.FreeBSD.org (Postfix) with ESMTP id CF4F443D45; Mon, 3 Oct 2005 15:31:11 +0000 (GMT) (envelope-from pertti.kosunen@pp.nic.fi) Received: from [192.168.0.20] ([84.249.3.49]) by fep19.inet.fi with ESMTP id <20051003153110.LIZE20628.fep19.inet.fi@[192.168.0.20]>; Mon, 3 Oct 2005 18:31:10 +0300 Message-ID: <43414EBE.1060500@pp.nic.fi> Date: Mon, 03 Oct 2005 18:31:10 +0300 From: Pertti Kosunen User-Agent: Mozilla Thunderbird 1.0.2 / FreeBSD 6.0-BETA5 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "freebsd-current@freebsd.org" , net@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Subject: send_query: No buffer space available X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Oct 2005 15:31:13 -0000 What should i do to avoid these messages from MRTG and dhclient? This happens with some network load on xl0 interface and pf+altq or ipfw+dummynet+statefull rules enabled, even with simple pass rules. Increasing kern.ipc.nmbclusters, kern.ipc.nsfbufs, kern.ipc.somaxconn and net.inet.tcp.sendspace doesn't seem to help. FreeBSD 5.3-RELEASE to 6.0-BETA5 have this problem. SNMP Error: send_query: No buffer space available dhclient: send_packet: No buffer space available netstat -m 1108/572/1680 mbufs in use (current/cache/total) 975/351/1326/17216 mbuf clusters in use (current/cache/total/max) 0/12/4560 sfbufs in use (current/peak/max) 2227K/845K/3072K bytes allocated to network (current/cache/total) 0 requests for sfbufs denied 0 requests for sfbufs delayed 94 requests for I/O initiated by sendfile 766 calls to protocol drain routines