Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261189AbVDDJ0m (ORCPT ); Mon, 4 Apr 2005 05:26:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261190AbVDDJ0m (ORCPT ); Mon, 4 Apr 2005 05:26:42 -0400 Received: from fmr18.intel.com ([134.134.136.17]:21127 "EHLO orsfmr003.jf.intel.com") by vger.kernel.org with ESMTP id S261189AbVDDJ0k (ORCPT ); Mon, 4 Apr 2005 05:26:40 -0400 Subject: Re: [ACPI] Re: [RFC 0/6] S3 SMP support with physcial CPU hotplug From: Li Shaohua To: Pavel Machek Cc: ncunningham@cyclades.com, Andrew Morton , lkml , ACPI List , Zwane Mwaikambo , Len Brown In-Reply-To: <20050404091027.GA14765@elf.ucw.cz> References: <1112580342.4194.329.camel@sli10-desk.sh.intel.com> <20050403193750.40cdabb2.akpm@osdl.org> <1112582553.4194.349.camel@sli10-desk.sh.intel.com> <20050403194807.32fd761a.akpm@osdl.org> <1112582947.4194.352.camel@sli10-desk.sh.intel.com> <1112601670.3757.6.camel@desktop.cunningham.myip.net.au> <1112604263.4194.367.camel@sli10-desk.sh.intel.com> <20050404091027.GA14765@elf.ucw.cz> Content-Type: text/plain Message-Id: <1112606651.4194.391.camel@sli10-desk.sh.intel.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 (1.4.6-2) Date: Mon, 04 Apr 2005 17:24:12 +0800 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1162 Lines: 32 On Mon, 2005-04-04 at 17:10, Pavel Machek wrote: > Hi! > > > > I'm switching suspend2 to use hotplug too. Li, I'll try adding your > > > patches as well as Zwane's if you like > > Great! > > > > > (suspend2 can enter S3, S4 or S5 > > > after writing the image). I'd love to try it on my HT desktop, and > > > hotplug will get more testing too :> > > Unfortunately, my patches break Pavel's swsusp SMP, as my patches break > > current 'cpu_up' mechanism. S4 doesn't require to boot AP CPUs from real > > mode. > > Uh, I don't like that one. Is it possible to put secondary CPUs back > to the real mode Possibly doesn't need the trouble. Send a SIPI also can wakeup the a CPU in protected mode. > so that cpu_up mechanism can handle them? If S4 also calls a smp_prepare_cpu, then the patches don't break S4. If people don't complain warm boot a CPU is slow, I'd like S4 also use smp_prepare_cpu. Thanks, Shaohua - 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/