Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756510AbXJAT6b (ORCPT ); Mon, 1 Oct 2007 15:58:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755962AbXJAT6U (ORCPT ); Mon, 1 Oct 2007 15:58:20 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:51879 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755688AbXJAT6S (ORCPT ); Mon, 1 Oct 2007 15:58:18 -0400 Date: Mon, 1 Oct 2007 12:56:26 -0700 From: Arjan van de Ven To: Thomas Gleixner Cc: Andi Kleen , David Bahi , linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org, Gregory Haskins Subject: Re: nmi_watchdog fix for x86_64 to be more like i386 Message-ID: <20071001125626.32eb6d0b@laptopd505.fenrus.org> In-Reply-To: References: <46FA4A800200006C000192FE@sinclair.provo.novell.com> <200710011936.01528.ak@suse.de> <200710012116.59356.ak@suse.de> Organization: Intel X-Mailer: Claws Mail 3.0.1 (GTK+ 2.12.0; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 729 Lines: 17 On Mon, 1 Oct 2007 21:27:39 +0200 (CEST) > > I already did this here by checking for cpu != 0. But it also needs > > either tracking or forbidding migrations of irq 0. I can take care > > of the patch. > > I was thinking about the same fix. On i386 we already have the irq > migration / balancing of irq 0 disabled. That's why we setup IRQ0 with > IRQ_NOBALANCING. btw doing this is a problem if the user decides to hot(un)plug cpu 0... he then can't move the irqs away to do that - 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/