From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750966AbWDXQcM (ORCPT ); Mon, 24 Apr 2006 12:32:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750964AbWDXQcM (ORCPT ); Mon, 24 Apr 2006 12:32:12 -0400 Received: from courier.cs.helsinki.fi ([128.214.9.1]:53707 "EHLO mail.cs.helsinki.fi") by vger.kernel.org with ESMTP id S1750966AbWDXQcM (ORCPT ); Mon, 24 Apr 2006 12:32:12 -0400 Subject: Re: [PATCH 1/1] threads_max: Simple lockout prevention patch From: Pekka Enberg To: Al Boldi Cc: Andrew Morton , linux-kernel@vger.kernel.org In-Reply-To: <200604241746.43005.a1426z@gawab.com> References: <200511142327.18510.a1426z@gawab.com> <200604241653.49647.a1426z@gawab.com> <1145887895.32427.5.camel@localhost> <200604241746.43005.a1426z@gawab.com> Date: Mon, 24 Apr 2006 19:32:09 +0300 Message-Id: <1145896330.11267.13.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 7bit X-Mailer: Evolution 2.4.2.1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2006-04-24 at 17:46 +0300, Al Boldi wrote: > But -O3 creates faster code w/ some strange flaws like failing nfs-boot. > Maybe that's fixed in the latest gcc, but gcc-3.2.2 was exhibiting this bug. > So this doesn't really help a developer to be confident about compiler > optimization, thus taking the safe route for performance sensitive > code-paths. Are you talking about a real GCC bug which you must work around? If not, please don't obfuscate the code for no good reason. Pekka