Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755505AbXJXQTU (ORCPT ); Wed, 24 Oct 2007 12:19:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752929AbXJXQTK (ORCPT ); Wed, 24 Oct 2007 12:19:10 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:4134 "EHLO spitz.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752268AbXJXQTJ (ORCPT ); Wed, 24 Oct 2007 12:19:09 -0400 Date: Thu, 11 Oct 2007 20:54:45 +0000 From: Pavel Machek To: "Rafael J. Wysocki" 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 Subject: Re: [linux-pm] Re: [RFC][PATCH 1/2 -mm] kexec based hibernation -v3: kexec jump Message-ID: <20071011205445.GA3975@ucw.cz> References: <200709220947.58872.nigel@nigel.suspend2.net> <200709221240.25614.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200709221240.25614.rjw@sisk.pl> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 911 Lines: 21 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. -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - 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/