From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750897AbWFAMTo (ORCPT ); Thu, 1 Jun 2006 08:19:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750902AbWFAMTo (ORCPT ); Thu, 1 Jun 2006 08:19:44 -0400 Received: from vanessarodrigues.com ([192.139.46.150]:45200 "EHLO jaguar.mkp.net") by vger.kernel.org with ESMTP id S1750880AbWFAMTo convert rfc822-to-8bit (ORCPT ); Thu, 1 Jun 2006 08:19:44 -0400 To: =?iso-8859-1?q?Oliver_K=F6nig?= Cc: linux-kernel@vger.kernel.org Subject: Re: __alloc_pages: 0-order allocation failed References: <200605311409.40560.k.oliver@t-online.de> From: Jes Sorensen Date: 01 Jun 2006 08:19:32 -0400 In-Reply-To: <200605311409.40560.k.oliver@t-online.de> Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.4 MIME-Version: 1.0 Content-Type: text/plain; charset=latin-iso8859-15 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >>>>> "Oliver" == Oliver König writes: Oliver> I run Debian 3.1 (Sarge) with Debian-Kernel 2.4.27-3-686-smp Oliver> on Dell Poweredge 2850 with the following setup/config: Oliver> Model: Dell Poweredge 2850 CPU: 2x3.0 GHz RAM: 2 GB SWAP: 1 GB Oliver> Raid 1 with Dell PowerEdge Expandable RAID controller 4 (SCSI) Oliver> Kernel: 2.4.27-3-686-smp (CONFIG_HIGHMEM4G=y) Web server: Oliver> apache2 SQL server: mysql4.1 MTA: exim4 [snip] Oliver> The server is then so slow tom react that the only way to get Oliver> rid of the problem is to reset the server. Oliver> What can we do to fix the problem? 0-order allocations means it cannot get even a single page of free memory. You also see in the log the the OOM is kicking in. In other words, totally out of memory. You have two options, add more swap or add more memory. At the same time it might be a good idea to try and monitor it to find out which tasks are chewing away that much memory. Cheers, Jes