From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 9 May 2001 10:29:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 9 May 2001 10:29:50 -0400 Received: from penguin.e-mind.com ([195.223.140.120]:11867 "EHLO penguin.e-mind.com") by vger.kernel.org with ESMTP id ; Wed, 9 May 2001 10:29:39 -0400 Date: Wed, 9 May 2001 16:29:28 +0200 From: Andrea Arcangeli To: "Cabaniols, Sebastien" Cc: "'linux-kernel@vger.kernel.org'" Subject: Re: [BUG] memory mngt > 2 Gbytes and DMA for the Alpha? pci_iommu.c Message-ID: <20010509162928.M2506@athlon.random> In-Reply-To: <1FF17ADDAC64D0119A6E0000F830C9EA04B3CDE0@aeoexc1.aeo.cpqcorp.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1FF17ADDAC64D0119A6E0000F830C9EA04B3CDE0@aeoexc1.aeo.cpqcorp.net>; from Sebastien.Cabaniols@Compaq.com on Wed, May 09, 2001 at 04:12:41PM +0200 X-GnuPG-Key-URL: http://e-mind.com/~andrea/aa.gnupg.asc X-PGP-Key-URL: http://e-mind.com/~andrea/aa.asc Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 09, 2001 at 04:12:41PM +0200, Cabaniols, Sebastien wrote: > Hi lkml, > > There is likely a bug in the management of memory above two Gigabytes and > DMA in kernel 2.4.4 > (up to ac-6) with the alpha. :-( remeber why last yaer I was advocating a CONFIG_HIGHMEM option also in 2.4 and not only in 2.2? If we had that now I would tell you "set HIGHMEM to y until we fix it" and you could use more up to terabyte of ram in the meantime. > When I boot the system with mem=2048M, everything is back... network, > storage... can you try to set DEBUG_NODIRECT to 1 in pci_iommu.c and then to boot with mem=2048M, if you can reproduce I should be able to reproduce too. Andrea