From owner-freebsd-stable@FreeBSD.ORG Mon May 22 13:44:37 2006 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 5DD6516AB66 for ; Mon, 22 May 2006 13:44:37 +0000 (UTC) (envelope-from imb@protected-networks.net) Received: from aaron.protected-networks.net (aaron.protected-networks.net [202.12.127.66]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9BBEF43D53 for ; Mon, 22 May 2006 13:44:36 +0000 (GMT) (envelope-from imb@protected-networks.net) Received: from localhost (localhost [127.0.0.1]) by aaron.protected-networks.net (Postfix) with ESMTP id 2C7C0C153 for ; Mon, 22 May 2006 09:44:35 -0400 (EDT) Received: from aaron.protected-networks.net (localhost [127.0.0.1]) by aaron.protected-networks.net (Postfix) with ESMTP id 6D51DC448 for ; Mon, 22 May 2006 09:44:15 -0400 (EDT) Authentication-Results: aaron.protected-networks.net from=imb@protected-networks.net; domainkey=pass Received: from aaron.protected-networks.net (localhost [127.0.0.1]) by aaron.protected-networks.net (Postfix) with ESMTP id 35C5FC3A9 for ; Mon, 22 May 2006 09:44:14 -0400 (EDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=200509; d=protected-networks.net; h=Received:Message-ID:Date:From:User-Agent:MIME-Version:To:Subject:Content-Type:Content-Transfer-Encoding; b=qEn0USOXHmoeax0M1SrA4MEzsw3zGoQErwy+a2fFRMJ4VYSrEPoHXWOT6R5PJib7jE+E6vdz41Ofl0VfkEoj8SkReQRU+Dr9qUYwwo9WwHnTJaLwtd8w/GfxoUxvDy+Q; Received: from [192.168.1.11] (c-24-218-147-31.hsd1.ma.comcast.net [24.218.147.31]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "Iain Michael Butler", Issuer "Protected Networks Certificate Authority" (verified OK)) by aaron.protected-networks.net (Postfix) with ESMTP id 111F0C153 for ; Mon, 22 May 2006 09:44:04 -0400 (EDT) Message-ID: <4471C021.30602@protected-networks.net> Date: Mon, 22 May 2006 09:44:01 -0400 From: Michael Butler User-Agent: Thunderbird 1.5.0.2 (Windows/20060308) MIME-Version: 1.0 To: freebsd-stable@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: requests for mbufs denied? 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: Mon, 22 May 2006 13:44:41 -0000 On a 6-stable machine with sufficient RAM, i.e. no swapping and 215MB free in 'top', I'm seeing .. imb@sarah:/home/imb# netstat -m 386/529/915 mbufs in use (current/cache/total) 384/254/638/17088 mbuf clusters in use (current/cache/total/max) 384/128 mbuf+clusters out of packet secondary zone in use (current/cache) 0/0/0/0 4k (page size) jumbo clusters in use (current/cache/total/max) 0/0/0/0 9k jumbo clusters in use (current/cache/total/max) 0/0/0/0 16k jumbo clusters in use (current/cache/total/max) 864K/640K/1504K bytes allocated to network (current/cache/total) 1405/14/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 0/0/0 requests for jumbo clusters denied (4k/9k/16k) 0/6/4528 sfbufs in use (current/peak/max) 0 requests for sfbufs denied 0 requests for sfbufs delayed 0 requests for I/O initiated by sendfile 28 calls to protocol drain routines What prompts this behaviour? Do I want/need to "play with" any sysctls to preallocate more space? -- Michael Butler, CISSP Security Architect Protected Networks http://www.protected-networks.net