Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261912AbVDOSd1 (ORCPT ); Fri, 15 Apr 2005 14:33:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261920AbVDOSdU (ORCPT ); Fri, 15 Apr 2005 14:33:20 -0400 Received: from s0003.shadowconnect.net ([213.239.201.226]:53721 "EHLO mail.shadowconnect.com") by vger.kernel.org with ESMTP id S261912AbVDOSbk (ORCPT ); Fri, 15 Apr 2005 14:31:40 -0400 Message-ID: <42600948.4040106@shadowconnect.com> Date: Fri, 15 Apr 2005 20:34:48 +0200 From: Markus Lidel User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Arjan van de Ven CC: Alan Cox , Miquel van Smoorenburg , Linux Kernel Mailing List Subject: Re: Adaptec 2010S i2o + x86_64 doesn't work References: <20050413160352.GA12841@xs4all.net> <1113576775.11116.17.camel@localhost.localdomain> <1113581722.14421.15.camel@zahadum.xs4all.nl> <1113587286.11114.30.camel@localhost.localdomain> <426003AB.3060904@shadowconnect.com> <1113588972.6694.78.camel@laptopd505.fenrus.org> In-Reply-To: <1113588972.6694.78.camel@laptopd505.fenrus.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1645 Lines: 46 Hello, Arjan van de Ven wrote: > On Fri, 2005-04-15 at 20:10 +0200, Markus Lidel wrote: >>Alan Cox wrote: >>>On Gwe, 2005-04-15 at 17:15, Miquel van Smoorenburg wrote: >>>>However, I removed 2 GB from the box as Alan sugggested and now the box >>>>comes up just fine with a 64-bit 2.6.11.6 kernel! I've put the 4GB back, >>>>and booted with the kernel "mem=2048" command line option - that also >>>>works, the i2o_block driver sees the adaptec controller just fine. >>>>And I just booted it with "mem=3840M" and that works too. >>>>So the problem appears to be 4 GB memory in 64 bit mode, on this box. >>>Or the driver is incorrectly handling 64/32bit DMA limit masks which >>>would be my first guess here, and would explain why it works on AMD >>>Athlon64 boxes. >>Hmmm, i only set DMA_32BIT_MASK and don't do anything special on 64-bit >>systems... Is there anything else to do for correct DMA mapping? > are you sure the HW isn't 31 bit by accident ? I don't know :-( But if the controller could only handle 31-bit DMA, wouldn't the 32-bit kernel with 4 GB also have the same problems? Best regards, Markus Lidel ------------------------------------------ Markus Lidel (Senior IT Consultant) Shadow Connect GmbH Carl-Reisch-Weg 12 D-86381 Krumbach Germany Phone: +49 82 82/99 51-0 Fax: +49 82 82/99 51-11 E-Mail: Markus.Lidel@shadowconnect.com URL: http://www.shadowconnect.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/