Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751470AbWH3UGm (ORCPT ); Wed, 30 Aug 2006 16:06:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751474AbWH3UGm (ORCPT ); Wed, 30 Aug 2006 16:06:42 -0400 Received: from ns2.suse.de ([195.135.220.15]:53153 "EHLO mx2.suse.de") by vger.kernel.org with ESMTP id S1751470AbWH3UGl (ORCPT ); Wed, 30 Aug 2006 16:06:41 -0400 From: Andi Kleen To: Willy Tarreau Subject: Re: [PATCH][RFC] exception processing in early boot Date: Wed, 30 Aug 2006 22:06:46 +0200 User-Agent: KMail/1.9.3 Cc: pageexec@freemail.hu, davej@redhat.com, linux-kernel@vger.kernel.org References: <20060830063932.GB289@1wt.eu> <200608302136.54624.ak@suse.de> <20060830200354.GA496@1wt.eu> In-Reply-To: <20060830200354.GA496@1wt.eu> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200608302206.46898.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 947 Lines: 23 On Wednesday 30 August 2006 22:03, Willy Tarreau wrote: > On Wed, Aug 30, 2006 at 09:36:54PM +0200, Andi Kleen wrote: > > > > > Andi, if you remove the HLT here, some CPUs will spin at full speed. This > > > is nasty during boot because some of them might not have enabled their > > > fans yet for instance > > > > That would be a severe bug in the platform. Basically always the fans are managed > > by SMM code. > > It was just an example. Other examples include virtual machines never > stopping because they will see the guest is working and not halted. They have to deal with that anyways because the machine can just crash with a busy loop. And BTW -- take a look at the normal panic. -Andi - 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/