From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262546AbTJOXM4 (ORCPT ); Wed, 15 Oct 2003 19:12:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262551AbTJOXM4 (ORCPT ); Wed, 15 Oct 2003 19:12:56 -0400 Received: from fw.osdl.org ([65.172.181.6]:29351 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S262546AbTJOXMz (ORCPT ); Wed, 15 Oct 2003 19:12:55 -0400 Date: Wed, 15 Oct 2003 16:12:51 -0700 From: Andrew Morton To: Adrian Bunk Cc: linux-kernel@vger.kernel.org Subject: Re: [2.6 patch] add a config option for -Os compilation Message-Id: <20031015161251.7de440ab.akpm@osdl.org> In-Reply-To: <20031015225055.GS17986@fs.tum.de> References: <20031015225055.GS17986@fs.tum.de> X-Mailer: Sylpheed version 0.9.6 (GTK+ 1.2.10; i586-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Adrian Bunk wrote: > > the patch below adds a configuration option for -Os Two problems: a) It adds yet another reason why person A discovers problems which person B cannot reproduce. b) It adds yet another reason why person A cannot work out the exact file-n-line where person B's kernel oopsed. They are small concerns really, but it does make one wonder why we should not make this change unconditional: just switch the kernel to -Os? Does anyone have any (non-micro-)benchmark results which say this is a bad idea?