Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 1 Oct 2002 09:30:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 1 Oct 2002 09:30:09 -0400 Received: from delta.ds2.pg.gda.pl ([213.192.72.1]:13243 "EHLO delta.ds2.pg.gda.pl") by vger.kernel.org with ESMTP id ; Tue, 1 Oct 2002 09:30:08 -0400 Date: Tue, 1 Oct 2002 15:35:54 +0200 (MET DST) From: "Maciej W. Rozycki" Reply-To: "Maciej W. Rozycki" To: Dave Jones cc: "David L. DeGeorge" , linux-kernel@vger.kernel.org Subject: Re: CPU/cache detection wrong In-Reply-To: <20021001111826.GA18583@suse.de> Message-ID: Organization: Technical University of Gdansk MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 986 Lines: 23 On Tue, 1 Oct 2002, Dave Jones wrote: > Some of the tualatins have an errata which makes L2 cache sizing > impossible. They actually report they have 0K L2 cache. By checking > the CPU model, we can guess we have at least 256K (which is where Linux > got that number from in your case). But this however means the 512K > models will report as 256K too. > To work around it, boot with cachesize=512 and all will be good. Strange -- why not to default to 256K and override it with the value obtained from a cache descriptor if != 0, then? -- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available + - 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/