From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754985Ab0FPI5q (ORCPT ); Wed, 16 Jun 2010 04:57:46 -0400 Received: from science.horizon.com ([71.41.210.146]:60177 "HELO science.horizon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752068Ab0FPI5p (ORCPT ); Wed, 16 Jun 2010 04:57:45 -0400 Date: 16 Jun 2010 04:57:43 -0400 Message-ID: <20100616085743.16572.qmail@science.horizon.com> From: "George Spelvin" To: andi@firstfloor.org Subject: Re: Hardware Error Kernel Mini-Summit Cc: linux@horizon.com, linux-kernel@vger.kernel.org, tony.luck@intel.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > ...and the numbers that come out of this may have no relation > to your motherboard labels at all. What do you do then? > Read schemantics again? Or do binary search on the DIMM again > like Eric suggested? Or make a guess and see if it works, or STFW for someone else who figured it out, or read chipset docs, or see if the SPD addresses correspond in a sensible way, or extrapolate from another board with the same NB and BIOS vendor, or... One of the big advantages of Linux/*BSD over certain other x86 operating systems is they don't try so hard to be user-friendly that they're expert-hostile. "Your computer is fucked up, please consult your system administrator" isn't much help to the poor system administrator. So while it's fine to *try* to translate to a DIMM slot using BIOS info, please also report whatever can be figured out without trusting the BIOS. So if I find it's in error, I can report everything needed to write an override table entry. Without the BIOS, it's a PITA, but the correspondence between /CSx lines and DIMM slot locations can be figured out, and if necessary, I can publish a web page with the mappings. "We do not trust BIOS tables, because BIOS writers are invariably totally incompetent crack-addicted monkeys. If they weren't, they wouldn't be BIOS writers. QED." -- Linus http://marc.info/?l=linux-kernel&m=127498023108564