From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757934Ab1KQQbS (ORCPT ); Thu, 17 Nov 2011 11:31:18 -0500 Received: from mx1.redhat.com ([209.132.183.28]:31203 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753809Ab1KQQbQ (ORCPT ); Thu, 17 Nov 2011 11:31:16 -0500 Date: Thu, 17 Nov 2011 11:31:12 -0500 From: Don Zickus To: Bjorn Helgaas Cc: Dave Jones , Linux Kernel , ying.huang@intel.com, kernel-team@fedoraproject.org, Matt_Domsch@dell.com, linux-acpi@vger.kernel.org Subject: Re: GHES: Failed to read error status Message-ID: <20111117163112.GO8685@redhat.com> References: <20111114183635.GA6316@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Nov 15, 2011 at 08:29:56AM -0700, Bjorn Helgaas wrote: > [+linux-acpi] > > On Mon, Nov 14, 2011 at 11:36 AM, Dave Jones wrote: > > It appears that there's a problem with Dell poweredge servers > > and GHES judging by the bug reports at > > > > https://bugzilla.redhat.com/show_bug.cgi?id=746755 > > https://bugs.launchpad.net/ubuntu/+bug/881164 > > > > Is this likely to be something that Dell need to fix in a firmware update, > > or something that the code needs to accomodate ? I think one problem was that in 2.6.38 the kernel saw HEST/GHES was supported and just tried to communicate with it. Unfortunately the kernel forgot to tell the BIOS that it supports firmware first mode, so in this case the firmware is probably blocking the GHES access and the kernel is confused why. The following commits resolved that issue (which may not entirely fix the problem, but might move it along). 9fb0bfe ACPI, APEI, Add WHEA _OSC support b3b46d7 APEI: Fix WHEA _OSC call The second one in particular was noticed by Dell. Though I recall that we needed to update the firmware to get Dell boxes working, but that was probably for EINJ. Cheers, Don