Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755632Ab1DTTXi (ORCPT ); Wed, 20 Apr 2011 15:23:38 -0400 Received: from mail-qy0-f174.google.com ([209.85.216.174]:52685 "EHLO mail-qy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752789Ab1DTTXh convert rfc822-to-8bit (ORCPT ); Wed, 20 Apr 2011 15:23:37 -0400 MIME-Version: 1.0 In-Reply-To: <4DAEF98D.2090802@ladisch.de> References: <16117.1303310442@jupiter.eclipse.co.uk> <4DAEF98D.2090802@ladisch.de> Date: Wed, 20 Apr 2011 14:23:36 -0500 Message-ID: Subject: Re: Background memory scrubbing From: Bill Gatliff To: Clemens Ladisch Cc: rwhitton@iee.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 949 Lines: 26 Ladisch: On Wed, Apr 20, 2011 at 10:19 AM, Clemens Ladisch wrote: > Which hardware platform is this? ?AFAICT all architectures with ECC > (old AMD64, Family 0Fh, Family 10h) also have scrubbing support. > If your BIOS is too dumb, just try enabling it directly (bits 0-4 of > PCI configuration register 0x58 in function 3 of the CPU's northbridge > device, see the BIOS and Kernel's Developer's Guide for details). That won't help non-AMD64 platforms that want to scrub. Is there a way to make Robert's approach work? I'm aware of a few non-AMD64, somewhat-exotic platforms that require scrubbing the way that Robert is proposing... b.g. -- Bill Gatliff bgat@billgatliff.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/