From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: Re: [BUG] long freezes on thinkpad t60 Date: Fri, 25 May 2007 08:58:58 +0200 Message-ID: <20070525065858.GA4257@elte.hu> References: <20070524220816.GC23214@khazad-dum.debian.net> <46560E04.2090500@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mx2.mail.elte.hu ([157.181.151.9]:51754 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752719AbXEYG7I (ORCPT ); Fri, 25 May 2007 02:59:08 -0400 Content-Disposition: inline In-Reply-To: <46560E04.2090500@intel.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: "Kok, Auke" Cc: Henrique de Moraes Holschuh , Miklos Szeredi , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org * Kok, Auke wrote: > Henrique de Moraes Holschuh wrote: > >On Thu, 24 May 2007, Miklos Szeredi wrote: > >>Tried nmi_watchdog=1, but then the machine locks up hard shortly after > >>boot. > > > >NMIs in some thinkpads are bad trouble, they lock up the blasted IBM/Lenovo > >SMBIOS if they happen to hit it while it is servicing a SMI, and thinkpads > >do SMIs like crazy. > > there's also a L1 ASPM issue with the e1000 chipset in the way (for > T60/X60 only). Make sure you are using 2.6.21 or newer. See netdev > archives for more on that. Miklos is using latest -git and he has nmi_watchdog disabled - still the long pauses persist. (i've never seen that on my t60) Ingo