From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 13 Sep 2001 13:50:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 13 Sep 2001 13:50:45 -0400 Received: from ebiederm.dsl.xmission.com ([166.70.28.69]:3395 "EHLO flinx.biederman.org") by vger.kernel.org with ESMTP id ; Thu, 13 Sep 2001 13:50:35 -0400 To: Jan Niehusmann Cc: Arjan van de Ven , VDA , linux-kernel@vger.kernel.org Subject: Re: Stomping on Athlon bug In-Reply-To: <17613305632.20010913121304@port.imtp.ilyichevsk.odessa.ua> <3BA087CA.3BD1D557@redhat.com> <20010913141937.A1873@gondor.com> <20010913082149.B20967@devserv.devel.redhat.com> <20010913160225.A2316@gondor.com> From: ebiederm@xmission.com (Eric W. Biederman) Date: 13 Sep 2001 10:33:36 -0600 In-Reply-To: <20010913160225.A2316@gondor.com> Message-ID: User-Agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/20.5 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 Jan Niehusmann writes: > On Thu, Sep 13, 2001 at 08:21:49AM -0400, Arjan van de Ven wrote: > > On Thu, Sep 13, 2001 at 02:19:38PM +0200, Jan Niehusmann wrote: > > > But, as far as I understand, STPGNT will not be enabled unless ACPI > > > power saving is in use, so setting the disconnect on STPGNT bit should > > > not matter. > > > > That is incorrect; it works perferctly well without ACPI. > > Exactly what is incorrect? > AFAICS, STPGNT is not triggered by hlt, so the linux idle function > doesn't set STPGNT. Hmm. At least on the AMD76[12] you can trigger a processor disconnect on hlt. However the buggy BIOS had disconnects disabled so it doesn't/shouldn't matter. Eric