Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753159Ab0ALVJF (ORCPT ); Tue, 12 Jan 2010 16:09:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752326Ab0ALVJE (ORCPT ); Tue, 12 Jan 2010 16:09:04 -0500 Received: from mga01.intel.com ([192.55.52.88]:32983 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752256Ab0ALVJE (ORCPT ); Tue, 12 Jan 2010 16:09:04 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.49,264,1262592000"; d="scan'208";a="530677441" Subject: Re: [PATCH] Make Intel 8-way Xeons boot again From: Suresh Siddha Reply-To: Suresh Siddha To: "H. Peter Anvin" Cc: Yinghai Lu , Ananth N Mavinakayanahalli , Ingo Molnar , Linus Torvalds , lkml , "stable@kernel.org" , Thomas Gleixner , "Pallipadi, Venkatesh" In-Reply-To: <4B4CE35D.4040801@zytor.com> References: <20100109101038.GA17555@in.ibm.com> <86802c441001091313y1f64f011t616f08cd282a7123@mail.gmail.com> <20100110023015.GA2253@in.ibm.com> <86802c441001092235j79092e6fse18b61e3d7b0ac6@mail.gmail.com> <20100110102638.GA7838@elte.hu> <86802c441001111343p2afaafb7o702884e632260bf7@mail.gmail.com> <1263246829.2859.537.camel@sbs-t61.sc.intel.com> <86802c441001121110u2f3dcfbpafb0d9c4bb6a4e4d@mail.gmail.com> <1263327630.2854.448.camel@sbs-t61.sc.intel.com> <4B4CE35D.4040801@zytor.com> Content-Type: text/plain Organization: Intel Corp Date: Tue, 12 Jan 2010 13:07:54 -0800 Message-Id: <1263330474.2854.548.camel@sbs-t61.sc.intel.com> Mime-Version: 1.0 X-Mailer: Evolution 2.26.3 (2.26.3-1.fc11) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1060 Lines: 27 On Tue, 2010-01-12 at 13:02 -0800, H. Peter Anvin wrote: > On 01/12/2010 12:20 PM, Suresh Siddha wrote: > > On Tue, 2010-01-12 at 11:10 -0800, Yinghai Lu wrote: > >> if the system can not use logical flat. > >> > >> should have some bit set in FADT... > > > > Yinghai, Sorry. I am not sure what you are referring to here. I have > > mentioned about FADT in another thread, so not sure what you mean by > > this here. > > > > Are you referring that bios for the IBM system can use this to fix their > > problem? Once we understand what the problem is with IBM platform, then > > we can propose a solution (using FADT perhaps) that is acceptable to > > everyone. > > > > Does the IBM platform set this bit in FADT? No. If they had set it, kernel would have used physical mode and wouldn't have seen this issue. -- 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/