From owner-freebsd-stable@FreeBSD.ORG Thu Oct 4 14:08:24 2007 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 9F1B416A420 for ; Thu, 4 Oct 2007 14:08:24 +0000 (UTC) (envelope-from matrix@itlegion.ru) Received: from corpmail.itlegion.ru (corpmail.itlegion.ru [84.21.226.211]) by mx1.freebsd.org (Postfix) with SMTP id CB2E013C457 for ; Thu, 4 Oct 2007 14:08:23 +0000 (UTC) (envelope-from matrix@itlegion.ru) Received: (qmail 12173 invoked from network); 4 Oct 2007 18:08:22 +0400 Received: from unknown (HELO Artem) (192.168.0.12) by 84.21.226.211 with SMTP; 4 Oct 2007 18:08:22 +0400 X-AntiVirus: Checked by Dr.Web [version: 4.44, engine: 4.44.0.09170, virus records: 246598, updated: 4.10.2007] Message-ID: <001701c80690$029c15a0$0c00a8c0@Artem> From: "Artem Kuchin" To: "Claus Guttesen" , References: <47039CB4.5040306@seclark.us> <4703C245.9000104@mac.com><4703C4FB.4030809@seclark.us> <4703C687.2010201@mac.com><4703D5B6.4070003@seclark.us> <4704E87D.4020608@seclark.us> Date: Thu, 4 Oct 2007 18:08:15 +0400 Organization: IT Legion MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="ISO-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 Cc: freebsd-stable@freebsd.org, Ivan Voras Subject: Re: Panic with RELENG_6_2 on DELL PE 4600 with PAE 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: Thu, 04 Oct 2007 14:08:24 -0000 Claus Guttesen wrote: >>>> Why would there be no space when I have 24GB of memory? >>> >>> 1. Any process, including the kernel can only allocate up to 4 GB of >>> memory on a 32-bit system (since a 32-bit integer can only hold that >>> many values) >>> 2. The kernel is further constrained so the user programs can get >>> enough memory >>> 3. Kernel structures for tracking and using memory are also stored >>> in kernel memory. 24 GB of memory with PAE probably "eats up" a lot >>> of those. I think you'll need to increase kmem_size (see >>> http://wiki.freebsd.org/ZFSTuningGuide for an example - ignore >>> ZFS-specific things). >> It made no difference. Still the same error. >> >> Is anyone actually using PAE with FreeBSD 6.2? I have found >> practically no information using >> google. We are using it on very heavy loaded production web server. 8GB of ram, dual xeon with HT. FreebSD 6-STABLE. about 900 process running constantly in about 20 jails. No problems detected :) Planning to migrate to 7-CURRENT AMD64 within a month. -- Regards, Artem