From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030871AbXDMWjo (ORCPT ); Fri, 13 Apr 2007 18:39:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030870AbXDMWjo (ORCPT ); Fri, 13 Apr 2007 18:39:44 -0400 Received: from crown.reflexsecurity.com ([72.54.139.163]:50863 "EHLO crown.reflexsecurity.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030869AbXDMWjn (ORCPT ); Fri, 13 Apr 2007 18:39:43 -0400 X-Reflex-Keepalives: . Date: Fri, 13 Apr 2007 18:39:36 -0400 From: Jason Lunz To: Andrew Morton Cc: Cameron Schaus , linux-kernel@vger.kernel.org Subject: Re: 2.6.20 OOM with 8Gb RAM Message-ID: <20070413223935.GA6783@metaxa.reflex> References: <20070412173830.GA31323@schaus.ca> <20070412121553.c7fd3249.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070412121553.c7fd3249.akpm@linux-foundation.org> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 12, 2007 at 12:15:53PM -0700, Andrew Morton wrote: > All of ZONE_NORMAL got used by ramdisk, and networking wants to > allocate a page from ZONE_NORMAL. An oom-killing is the correct > response, although probably not effective. > > ramdisk is a nasty thing - cannot you use ramfs or tmpfs? What do you mean by "nasty thing"? I've heard that about loopback too. If I want to run a system entirely from ram with a compressed filesystem image mounted on /, is it better to store that image in a ramdisk, or on a tmpfs and mount it via loopback? Jason