From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750714AbWFEH7l (ORCPT ); Mon, 5 Jun 2006 03:59:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750723AbWFEH7l (ORCPT ); Mon, 5 Jun 2006 03:59:41 -0400 Received: from gw.goop.org ([64.81.55.164]:51675 "EHLO mail.goop.org") by vger.kernel.org with ESMTP id S1750714AbWFEH7l (ORCPT ); Mon, 5 Jun 2006 03:59:41 -0400 Message-ID: <4483E467.8000504@goop.org> Date: Mon, 05 Jun 2006 00:59:35 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 1.5.0.2 (X11/20060501) MIME-Version: 1.0 To: Andrew Morton CC: linux-kernel@vger.kernel.org, dzickus@redhat.com, ak@suse.de, Miles Lane Subject: Re: [2.6.17-rc5-mm2] crash when doing second suspend: BUG in arch/i386/kernel/nmi.c:174 References: <4480C102.3060400@goop.org> <4483DF32.4090608@goop.org> <20060605004823.566b266c.akpm@osdl.org> In-Reply-To: <20060605004823.566b266c.akpm@osdl.org> 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 Andrew Morton wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=6647 has details. > > Do you think the suspend breakage is related to that patch? > Yes. I haven't really worked out what's going on in there, but it looks like it's losing track of what it has allocated and running out of timer MSRs. Possibly because the CPUs are reinitialized on resume: it "thaws the CPUs", which prints the same CPU information as at boot time - caps, bogomips, etc - so I presume it actually redoes those things. I wonder if this makes the performance counter reservation loose track of things? J