Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750746AbVISW4D (ORCPT ); Mon, 19 Sep 2005 18:56:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750716AbVISW4D (ORCPT ); Mon, 19 Sep 2005 18:56:03 -0400 Received: from b3162.static.pacific.net.au ([203.143.238.98]:51943 "EHLO cunningham.myip.net.au") by vger.kernel.org with ESMTP id S932680AbVISW4C (ORCPT ); Mon, 19 Sep 2005 18:56:02 -0400 Subject: Re: PATCH: Fix race in cpu_down (hotplug cpu) From: Nigel Cunningham Reply-To: ncunningham@cyclades.com To: Nick Piggin Cc: Ingo Molnar , Li Shaohua , vatsa@in.ibm.com, Andrew Morton , Linus Torvalds , Zwane Mwaikambo , lkml , Rusty Russell In-Reply-To: <1127115425.5272.21.camel@npiggin-nld.site> References: <59D45D057E9702469E5775CBB56411F171F7E0@pdsmsx406> <20050919051024.GA8653@in.ibm.com> <1127107887.3958.9.camel@linux-hp.sh.intel.com> <20050919055715.GE8653@in.ibm.com> <1127110271.9696.97.camel@localhost> <20050919062336.GA9466@in.ibm.com> <1127111830.4087.3.camel@linux-hp.sh.intel.com> <1127111784.5272.10.camel@npiggin-nld.site> <1127113930.4087.6.camel@linux-hp.sh.intel.com> <1127114538.5272.16.camel@npiggin-nld.site> <20050919072842.GA11293@elte.hu> <1127115425.5272.21.camel@npiggin-nld.site> Content-Type: text/plain Organization: Cyclades Message-Id: <1127170547.18737.3.camel@localhost> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6-1mdk Date: Tue, 20 Sep 2005 08:55:47 +1000 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 885 Lines: 25 Hi. On Mon, 2005-09-19 at 17:37, Nick Piggin wrote: > Thanks for the confirmation Ingo. This is part of my "cleanup resched > and cpu_idle" patch FYI. It should already be in -mm, but has some > trivial EM64T bug in it that Andrew hits but I can't reproduce. > > I'll dust it off and send it out, hopefully someone will be able to > reproduce the problem! I got on the same page eventually :). When you have it ready, I'll be happy to try it. Apart from trying another 75 suspends (which I'm happy to do), I'm not really sure how we can be totally sure that the patch fixes it. Do you have any thoughts in this regard? Regards, Nigel - 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/