From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758592AbYGULFg (ORCPT ); Mon, 21 Jul 2008 07:05:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751668AbYGULF2 (ORCPT ); Mon, 21 Jul 2008 07:05:28 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:55568 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751481AbYGULF2 (ORCPT ); Mon, 21 Jul 2008 07:05:28 -0400 Date: Mon, 21 Jul 2008 13:05:10 +0200 From: Ingo Molnar To: Jan Beulich Cc: "H. Peter Anvin" , Andi Kleen , tglx@linutronix.de, linux-kernel@vger.kernel.org Subject: Re: [PATCH] i386: improve double fault handling Message-ID: <20080721110510.GC10782@elte.hu> References: <4880A912.76E4.0078.0@novell.com> <4881263B.7060700@zytor.com> <48846B02.76E4.0078.0@novell.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <48846B02.76E4.0078.0@novell.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Jan Beulich wrote: > > This patch doesn't apply for me to the extent that I'm hesitant to > > fix it up manually. Could you please refresh it against current > > -linus? > > Make the double fault handler use CPU-specific stacks. Add some > abstraction to simplify future change of other exception handlers to > go through task gates. Add a new notification of the event through the > die notifier chain, also providing some environmental adjustments so > that various infrastructural things work independent of the fact that > the fault and the callbacks are running on other then the normal > kernel stack. this still doesnt apply to latest -git. (or tip/master) Ingo