From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 2 Jan 2003 18:36:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 2 Jan 2003 18:36:46 -0500 Received: from vger.timpanogas.org ([216.250.140.154]:42466 "EHLO vger.timpanogas.org") by vger.kernel.org with ESMTP id ; Thu, 2 Jan 2003 18:36:45 -0500 Date: Thu, 2 Jan 2003 17:55:17 -0700 From: "Jeff V. Merkey" To: linux-kernel@vger.kernel.org Cc: jmerkey@timpanogas.org Subject: Questton about Zone Allocation 2.4.X Message-ID: <20030102175517.A21471@vger.timpanogas.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org LKML, I have a system in the lab with 4GB of physical and the system can see all the memory, however, calls to get_free_pages() will only allocate up to 1GB of this memory before returning an out of memory condition. I have reviewed Ingo's changes and enhancements with the zone allocator and it certainly looks like this code has the smarts to balance the contiguous free pages on the zone allocation lists. I need to be able to get more than 1GB to pin for a particular application. Where do I need to adjust the tuning to allow 2.4.X kernels to allocate mote than 1GB from the physical pages list? Any help would be appreciated. Thanks Jeff Merkey Network Associates