Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758233AbZDNTD3 (ORCPT ); Tue, 14 Apr 2009 15:03:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756032AbZDNTDU (ORCPT ); Tue, 14 Apr 2009 15:03:20 -0400 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:52791 "EHLO www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755436AbZDNTDT (ORCPT ); Tue, 14 Apr 2009 15:03:19 -0400 Date: Tue, 14 Apr 2009 20:02:47 +0100 From: Alan Cox To: Ingo Molnar Cc: Jaswinder Singh Rajput , x86 maintainers , LKML Subject: Re: [PATCH -tip] x86: cpu_debug.c prepare report if files are inappropriate or CPU is not supported Message-ID: <20090414200247.1d0a8667@lxorguk.ukuu.org.uk> In-Reply-To: <20090414184222.GC11214@elte.hu> References: <1239725240.2966.4.camel@ht.satnam> <20090414165052.GA2089@elte.hu> <1239728481.2966.21.camel@ht.satnam> <20090414184222.GC11214@elte.hu> X-Mailer: Claws Mail 3.7.0 (GTK+ 2.14.7; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 667 Lines: 16 > > Do you still think that boot_cpu_data.x86_vendor is better option in > > case for multiple CPUs. > > yes. Assymetric SMP never really happened on x86. It did but not between vendors. You can get away with a vendor assumption but cpu type (mixed 486SX/DX, PII/PIII/Celeron) mixed steppings and mixed speeds do occur. We've never supported the mixed 486SX cases but the PII/PIII cases work (or at least worked). Alan -- 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/