Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758272AbXJXUV7 (ORCPT ); Wed, 24 Oct 2007 16:21:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753873AbXJXUVv (ORCPT ); Wed, 24 Oct 2007 16:21:51 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:43316 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753535AbXJXUVv (ORCPT ); Wed, 24 Oct 2007 16:21:51 -0400 From: "Rafael J. Wysocki" To: Pavel Machek Subject: Re: [linux-pm] Re: [RFC][PATCH 1/2 -mm] kexec based hibernation -v3: kexec jump Date: Wed, 24 Oct 2007 22:38:02 +0200 User-Agent: KMail/1.9.5 Cc: Nigel Cunningham , Kyle Moffett , Jeremy Maitin-Shepard , Alan Stern , nigel@suspend2.net, Kexec Mailing List , linux-kernel@vger.kernel.org, "Eric W. Biederman" , "Huang, Ying" , linux-pm@lists.linux-foundation.org, huang ying , Andrew Morton References: <200709221240.25614.rjw@sisk.pl> <20071011205445.GA3975@ucw.cz> In-Reply-To: <20071011205445.GA3975@ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200710242238.02978.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 947 Lines: 25 On Thursday, 11 October 2007 22:54, Pavel Machek wrote: > Hi! > > > > That's certainly possible. We already pass a very small amount of data between > > > the boot and resuming kernels at the moment, and it's done quite simply - by > > > putting the variables we want to 'transfer' in a nosave page/section. > > > > Well, if the boot and image kernels are different, which is now possible on > > x86_64 with some recent patches (currently in -mm), the nosave trick won't > > work. > > I guess we should remove the nosave.... at least from x86-64. If > someone tries to use it, he'll get a nasty surprise. Agreed. I'll try to prepare a patch for that when I have a bit of time. Greetings, Rafael - 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/