Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932290AbWIZWCy (ORCPT ); Tue, 26 Sep 2006 18:02:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932434AbWIZWCy (ORCPT ); Tue, 26 Sep 2006 18:02:54 -0400 Received: from mailout1-1.pacific.net.au ([61.8.2.208]:35775 "EHLO mailout1.pacific.net.au") by vger.kernel.org with ESMTP id S932290AbWIZWCx (ORCPT ); Tue, 26 Sep 2006 18:02:53 -0400 Date: Wed, 27 Sep 2006 08:02:45 +1000 From: Greg Schafer To: john stultz Cc: linux-kernel@vger.kernel.org, James Puthukattukaran , Michael Obster , =?iso-8859-1?B?Uy7HYT8/bGFy?= Onur Subject: Re: 2.6.18 Nasty Lockup Message-ID: <20060926220245.GA7883@tigers.local> References: <20060926123640.GA7826@tigers.local> <1159301752.17071.0.camel@localhost> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="cWoXeonUoKmBZSoM" Content-Disposition: inline In-Reply-To: <1159301752.17071.0.camel@localhost> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7185 Lines: 131 --cWoXeonUoKmBZSoM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Sep 26, 2006 at 01:15:51PM -0700, john stultz wrote: > On Tue, 2006-09-26 at 22:36 +1000, Greg Schafer wrote: > > This is a _hard_ lockup. No oops, no magic sysrq, no nuthin, just a > > completely dead machine with only option the reset button. Usually happens > > within a couple of minutes of desktop use but is 100% reproducible. Problem > > is still there in a fresh checkout of current Linus git tree (post 2.6.18). > > > > Dual Athlon-MP 2200's on a Tyan S2466 Tiger MPX. Config attached. > > > > I used git-bisect and arrived at the apparent culprit below. Anything else I > > should do to gather more info? > > Quick test: Does enabling CONFIG_ACPI change the behavior? Yes. It doesn't lockup now, at least it hasn't yet. Should I always configure with CONFIG_ACPI? I've usually avoided it. On Tue, Sep 26, 2006 at 11:18:02AM -0700, john stultz wrote: > Thanks for narrowing this down. Could you send me full dmesg output? Sure, attached (non CONFIG_ACPI case). On Tue, Sep 26, 2006 at 01:20:54PM -0400, James Puthukattukaran wrote: > Did you try asserting an NMI via "nmi_watchdog" kernel boot argument? I gave it a try on your advice (added nmi_watchdog=1 to boot args). No dice I'm afraid (no oops data). But I did notice in the dmesg output something possibly strange: Testing NMI watchdog ... CPU#0: NMI appears to be stuck (0->0)! On Tue, Sep 26, 2006 at 03:56:46PM +0200, Michael Obster wrote: > what do you mean with desktop use? X11-System? Then please add also your > used grafic card and the X11 driver. I see this behaviour with lots of > binary only driver like from NVIDIA or ATI (perhaps they have problems > with the new 2.6.18 kernel). No binary-only drivers here. Matrox card. In fact, the lockup sometimes happens before X is even loaded (I suspect ntpdate in my bootscripts). 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