From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750792AbWAaMfd (ORCPT ); Tue, 31 Jan 2006 07:35:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750791AbWAaMfd (ORCPT ); Tue, 31 Jan 2006 07:35:33 -0500 Received: from mx2.suse.de ([195.135.220.15]:922 "EHLO mx2.suse.de") by vger.kernel.org with ESMTP id S1750790AbWAaMfc (ORCPT ); Tue, 31 Jan 2006 07:35:32 -0500 To: "Jan Beulich" Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH] double fault enhancements References: <43DDF050.76F0.0078.0@novell.com.suse.lists.linux.kernel> From: Andi Kleen In-Reply-To: <43DDF050.76F0.0078.0@novell.com.suse.lists.linux.kernel> User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 Date: 31 Jan 2006 13:35:29 +0100 Message-ID: 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 Beulich" writes: > From: Jan Beulich > > 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. Change the pointer validity checks in the double > fault handler to account for the fact that both GDT and TSS aren't in > static kernel space anymore. 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. Looks good to me. Feel free to include a Acked-by: ak@suse.de in future versions. -Andi