Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752801AbXJBE5A (ORCPT ); Tue, 2 Oct 2007 00:57:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750929AbXJBE4v (ORCPT ); Tue, 2 Oct 2007 00:56:51 -0400 Received: from pne-smtpout4-sn1.fre.skanova.net ([81.228.11.168]:51752 "EHLO pne-smtpout4-sn1.fre.skanova.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750798AbXJBE4u (ORCPT ); Tue, 2 Oct 2007 00:56:50 -0400 Message-ID: <4701CF78.5020802@kolumbus.fi> Date: Tue, 02 Oct 2007 07:56:24 +0300 From: =?ISO-8859-1?Q?Mika_Penttil=E4?= User-Agent: Thunderbird 2.0.0.5 (X11/20070727) MIME-Version: 1.0 To: Thomas Gleixner CC: Andi Kleen , Arjan van de Ven , David Bahi , LKML , linux-rt-users@vger.kernel.org, Andrew Morton , Ingo Molnar , Gregory Haskins Subject: Re: nmi_watchdog fix for x86_64 to be more like i386 References: <46FA4A800200006C000192FE@sinclair.provo.novell.com> <200710012341.53169.ak@suse.de> <200710020007.09864.ak@suse.de> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1388 Lines: 49 Thomas Gleixner wrote: > On Tue, 2 Oct 2007, Andi Kleen wrote: > >>> OTOH, the accounting hook would allow us to remove the IRQ#0 -> CPU#0 >>> restriction. Not sure whether it's worth the trouble. >>> >> Some SIS chipsets hang the machine when you migrate irq 0 to another >> CPU. It's better to keep that Also I wouldn't be surprised if there are some >> other assumptions about this elsewhere. >> >> Ok in theory it could be done only on SIS, but that probably would really >> not be worth the trouble >> > > Agreed. > > I just got a x8664-hrt report, where I found the following oddity: > > 0: 1197 172881 IO-APIC-edge timer > > That's one of those infamous AMD C1E boxen. Strange, all my systems have > IRQ#0 on CPU#0 and nowhere else. Any idea ? > > tglx > > Here I have with stock FC7 (2.6.22.9-91) kernel : 0: 107835 133459760 IO-APIC-edge timer Processor: vendor_id : AuthenticAMD cpu family : 15 model : 107 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4000+ stepping : 1 cpu MHz : 2109.721 cache size : 512 KB MB: Asus M2N-E (NF570) --Mika - 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/