From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261735AbTJXAec (ORCPT ); Thu, 23 Oct 2003 20:34:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261780AbTJXAec (ORCPT ); Thu, 23 Oct 2003 20:34:32 -0400 Received: from hermes.fachschaften.tu-muenchen.de ([129.187.202.12]:6866 "HELO hermes.fachschaften.tu-muenchen.de") by vger.kernel.org with SMTP id S261735AbTJXAeb (ORCPT ); Thu, 23 Oct 2003 20:34:31 -0400 Date: Fri, 24 Oct 2003 02:34:28 +0200 From: Adrian Bunk To: Andrew Morton Cc: suparna@in.ibm.com, daniel@osdl.org, linux-aio@kvack.org, linux-kernel@vger.kernel.org, pbadari@us.ibm.com Subject: Re: Patch for Retry based AIO-DIO (Was AIO and DIOtestingon2.6.0-test7-mm1) Message-ID: <20031024003427.GK21490@fs.tum.de> References: <1066693673.22983.10.camel@ibm-c.pdx.osdl.net> <20031021121113.GA4282@in.ibm.com> <1066869631.1963.46.camel@ibm-c.pdx.osdl.net> <20031023104923.GA11543@in.ibm.com> <20031023135030.GA11807@in.ibm.com> <20031023155937.41b0eeda.akpm@osdl.org> <20031023232006.GH21490@fs.tum.de> <20031023162539.0051249d.akpm@osdl.org> <20031023233700.GJ21490@fs.tum.de> <20031023164638.5c32b80f.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20031023164638.5c32b80f.akpm@osdl.org> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 23, 2003 at 04:46:38PM -0700, Andrew Morton wrote: >... > > -Os has it's benefits on some systems, so it shouldn't be totally hidden > > under EMBEDDED. OTOH, it's less tested, so only people who know what > > they are doing should use it (EXPERIMENTAL plus help text). > > It causes kernels to crash on a major linux distribution. We need to > either make it very hard to turn on, or just forget it altogether. Looking at the source RPM, it seems e.g. gcc bug #8746 "gcc miscompiles Linux kernel ppa driver on x86" (fixed in gcc 3.2.3) is also unfixed in the gcc in RedHat 9.0 ... cu Adrian -- "Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed