From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752860AbXCLUWS (ORCPT ); Mon, 12 Mar 2007 16:22:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752865AbXCLUWS (ORCPT ); Mon, 12 Mar 2007 16:22:18 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:3313 "EHLO spitz.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752860AbXCLUWR (ORCPT ); Mon, 12 Mar 2007 16:22:17 -0400 Date: Mon, 12 Mar 2007 10:43:52 +0000 From: Pavel Machek To: Dave Jones , Andrew Morton , alon.barlev@gmail.com, ak@suse.de, linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86_64, i386: Add command line length to boot protocol Message-ID: <20070312104352.GA4313@ucw.cz> References: <20070306181430.GB3151@strauss.suse.de> <20070306182134.GB9491@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070306182134.GB9491@redhat.com> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue 2007-03-06 13:21:34, Dave Jones wrote: > On Tue, Mar 06, 2007 at 07:14:30PM +0100, Bernhard Walle wrote: > > > +cmdline_size: .long COMMAND_LINE_SIZE-1 #length of the command line, > > Why a long? It's unlikely that someone is going to have a command line > bigger than 0xffff. Well, I could imagine overflowing that. Describing your numa setup, excluding few bad bits of ram using memmap=exact, set up your boot over iscsi on cmdline.... these are likely to eat insane ammount of cmdline space. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html