Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266547AbUAWNbh (ORCPT ); Fri, 23 Jan 2004 08:31:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266556AbUAWNbg (ORCPT ); Fri, 23 Jan 2004 08:31:36 -0500 Received: from jurand.ds.pg.gda.pl ([153.19.208.2]:35723 "EHLO jurand.ds.pg.gda.pl") by vger.kernel.org with ESMTP id S266547AbUAWNbb (ORCPT ); Fri, 23 Jan 2004 08:31:31 -0500 Date: Fri, 23 Jan 2004 14:31:29 +0100 (CET) From: "Maciej W. Rozycki" To: Mikael Pettersson Cc: torvalds@osdl.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH][2.6] local APIC LVTT init bug In-Reply-To: <16401.6720.115695.872847@alkaid.it.uu.se> Message-ID: References: <16400.9569.745184.16182@alkaid.it.uu.se> <16401.6720.115695.872847@alkaid.it.uu.se> 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: 1402 Lines: 30 On Fri, 23 Jan 2004, Mikael Pettersson wrote: > > Sigh -- why can't designers keep such a trivial backwards > > compatibility??? The integrated APIC was said to be backwards compatible > > when introduced and so far all implementations used to. What you write > > means that has been broken -- could please say which vendor to blame? > > The ASUS L3800C was mentioned. I don't know of any others. It seems to be P4-based -- I'm pretty sure the integrated APIC behaves the same way regardless of where its plugged in, so why wouldn't this problem appear earlier? I've browsed my mailbox and found a patch that was stated to fix problems on the system involved. But the patch disables the timer around certain actions -- that may indeed matter for some broken firmware (especially some SMM crap), but I can't see how these bits could. That doesn't of course mean your patch shouldn't be applied -- it won't hurt to be overly careful. Maciej -- + 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/