Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758920AbXIROu0 (ORCPT ); Tue, 18 Sep 2007 10:50:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759004AbXIROuL (ORCPT ); Tue, 18 Sep 2007 10:50:11 -0400 Received: from caffeine.csclub.uwaterloo.ca ([129.97.134.17]:52600 "EHLO caffeine.uwaterloo.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757270AbXIROuK (ORCPT ); Tue, 18 Sep 2007 10:50:10 -0400 Date: Tue, 18 Sep 2007 10:50:09 -0400 To: Wojciech Kromer Cc: linux-kernel@vger.kernel.org Subject: Re: Intel-Quad on GA-P35-S3 motherboard with 4*2GB Message-ID: <20070918145009.GH5386@csclub.uwaterloo.ca> References: <46EA4B50.7040904@dgt.com.pl> <20070914131859.GC5386@csclub.uwaterloo.ca> <46EF77D8.3090808@dgt.com.pl> <20070918142047.GF5386@csclub.uwaterloo.ca> <46EFE23F.8090100@dgt.com.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <46EFE23F.8090100@dgt.com.pl> User-Agent: Mutt/1.5.13 (2006-08-11) From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1634 Lines: 41 On Tue, Sep 18, 2007 at 04:35:43PM +0200, Wojciech Kromer wrote: > Yes, it's a bit strange, but there should be a way to configure it in linux. > I found only memmap option which does selection of regions, but not > remapping. No it is entirely the BIOS's job to do that. It would be very hard for linux to safely change that. > I have 64 bit compilation of course. So in your case it would have been just fine with a simpler mapping. > It's Intel-quad, so there are 4 CPUs. Weird. The message about the MTRR on all the CPUs not maching sound like a strange bios bug. Are you running the latest bios version? > It's in prevoius mail: > > # dmesg|grep BIOS-e820 > >BIOS-e820: 0000000000000000 - 000000000009f800 (usable) > >BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved) > >BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) > >BIOS-e820: 0000000000100000 - 000000009fee0000 (usable) > >BIOS-e820: 000000009fee0000 - 000000009fee3000 (ACPI NVS) > >BIOS-e820: 000000009fee3000 - 000000009fef0000 (ACPI data) > >BIOS-e820: 000000009fef0000 - 000000009ff00000 (reserved) > >BIOS-e820: 00000000c0000000 - 00000000c4000000 (reserved) > >BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved) > >BIOS-e820: 0000000100000000 - 0000000260000000 (usable) Looks to match the MTRR setup at least. So how much ram does the kernel actually want to use? -- Len Sorensen - 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/