From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 14 Feb 2003 13:01:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 14 Feb 2003 13:01:21 -0500 Received: from almesberger.net ([63.105.73.239]:64525 "EHLO host.almesberger.net") by vger.kernel.org with ESMTP id ; Fri, 14 Feb 2003 13:01:21 -0500 Date: Fri, 14 Feb 2003 15:10:01 -0300 From: Werner Almesberger To: Corey Minyard Cc: "Eric W. Biederman" , suparna@in.ibm.com, Kenneth Sumrall , linux-kernel@vger.kernel.org, lkcd-devel@lists.sourceforge.net Subject: Re: Kexec, DMA, and SMP Message-ID: <20030214151001.F2092@almesberger.net> References: <20030211191027.A2999@in.ibm.com> <3E490374.1060608@mvista.com> <20030211201029.A3148@in.ibm.com> <3E4914CA.6070408@mvista.com> <3E4A578C.7000302@mvista.com> <3E4A70EA.4020504@mvista.com> <20030214001310.B2791@almesberger.net> <3E4CFB11.1080209@mvista.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3E4CFB11.1080209@mvista.com>; from cminyard@mvista.com on Fri, Feb 14, 2003 at 08:20:01AM -0600 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Corey Minyard wrote: > Yes, we were talking about temporary stopgaps. Yes, that's what Suparna and Eric were discussing :-) > But, I had another idea. What about using power management? If you > suspended everything, would that be good enough. I looked at a few > drivers, and it seemed so. As long as you don't need any form of synchronization to power down a device, and if it comes up silent (i.e. no "sleep" mode, in which it still has enough power to remember DMA lists and such), that would work. I'd suspect that power management requiries you to synchronize, so we're back to square one. - Werner -- _________________________________________________________________________ / Werner Almesberger, Buenos Aires, Argentina wa@almesberger.net / /_http://www.almesberger.net/____________________________________________/