Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932159AbWCLNFR (ORCPT ); Sun, 12 Mar 2006 08:05:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932241AbWCLNFR (ORCPT ); Sun, 12 Mar 2006 08:05:17 -0500 Received: from bizon.gios.gov.pl ([212.244.124.8]:18919 "EHLO bizon.gios.gov.pl") by vger.kernel.org with ESMTP id S932159AbWCLNFP (ORCPT ); Sun, 12 Mar 2006 08:05:15 -0500 Date: Sun, 12 Mar 2006 14:05:00 +0100 (CET) From: Krzysztof Oledzki X-X-Sender: olel@bizon.gios.gov.pl To: Andrew Morton cc: linux-kernel@vger.kernel.org, Ashok Raj , Venkatesh Pallipadi , Suresh B Siddha , Rajesh Shah Subject: Re: More than 8 CPUs detected and CONFIG_X86_PC cannot handle it on 2.6.16-rc6 In-Reply-To: <20060312032523.109361c1.akpm@osdl.org> Message-ID: References: <20060311210353.7eccb6ed.akpm@osdl.org> <20060312032523.109361c1.akpm@osdl.org> MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-187430788-976539671-1142168700=:31039" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1998 Lines: 65 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---187430788-976539671-1142168700=:31039 Content-Type: TEXT/PLAIN; charset=ISO-8859-2; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE On Sun, 12 Mar 2006, Andrew Morton wrote: > Krzysztof Oledzki wrote: >> >> On Sat, 11 Mar 2006, Andrew Morton wrote: >> >> > Krzysztof Oledzki wrote: >> >> >> >> After upgrading to 2.6.16-rc6 I noticed this strange message: >> >> >> >> More than 8 CPUs detected and CONFIG_X86_PC cannot handle it. >> >> Use CONFIG_X86_GENERICARCH or CONFIG_X86_BIGSMP. >> >> >> >> This is a Dell PowerEdge SC1425 with two P4 Xeons with HT enabled (so= with >> >> totoal of 4 logical CPUs). >> > >> > Please send full dmesg output for the failing kernel, thanks. >> Attached. >> >> > Which is the most-recently-tested kernel which behaved correctly? >> 2.6.15.6 > > OK, thanks. I assume the machine's working OK? Yes. So far no problems, only this warning. > From my reading, you have CONFIG_HOTPLUG_CPU enabled and the machine has = an > APIC. That is correct. > I'd expect that lots of people would hit that warning but for some > reason they don't - possibly because most APICs don't have sufficiently > high version numbers? > > Anyway, various people cc'ed. I _think_ it's harmless, although the way = in > which def_to_bigsmp propagates into the DMI and APIC code might be a > problem, depending upon config options. > > Certainly the warning is incorrect, but I'm not sure what is the best thi= ng > to do about it? OK. Thank you. Best regards, =09=09=09=09Krzysztof Ol=EAdzki ---187430788-976539671-1142168700=:31039-- - 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/