Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753370AbYGIU1q (ORCPT ); Wed, 9 Jul 2008 16:27:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753690AbYGIU1g (ORCPT ); Wed, 9 Jul 2008 16:27:36 -0400 Received: from smtp6.pp.htv.fi ([213.243.153.40]:46563 "EHLO smtp6.pp.htv.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751526AbYGIU1f (ORCPT ); Wed, 9 Jul 2008 16:27:35 -0400 Date: Wed, 9 Jul 2008 23:26:33 +0300 From: Adrian Bunk To: "H. Peter Anvin" Cc: Ingo Molnar , Mike Travis , Jeremy Fitzhardinge , Andrew Morton , "Eric W. Biederman" , Christoph Lameter , Jack Steiner , linux-kernel@vger.kernel.org Subject: Re: [RFC 00/15] x86_64: Optimize percpu accesses Message-ID: <20080709202633.GC14386@cs181140183.pp.htv.fi> References: <20080709165129.292635000@polaris-admin.engr.sgi.com> <4874F30C.8020800@zytor.com> <4874F909.7060503@goop.org> <4874FEDF.90404@sgi.com> <20080709193404.GC4804@elte.hu> <48751533.7030602@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <48751533.7030602@zytor.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1237 Lines: 35 On Wed, Jul 09, 2008 at 03:44:51PM -0400, H. Peter Anvin wrote: > Ingo Molnar wrote: >> >> the problem is, we cannot just put it even into tip/master if there's >> no short-term hope of fixing a problem it triggers. gcc-4.2.3 is solid >> for me otherwise, for series of thousands of randomly built kernels. >> > > 4.2.3 is fine; he was using 4.2.0 before, and as far as I know, 4.2.0 > and 4.2.1 are known broken for the kernel. Not sure where your knowledge comes from, but the ones I try to get blacklisted due to known gcc bugs are 4.1.0 and 4.1.1. On a larger picture, we officially support gcc >= 3.2, and if any kernel change triggers a bug with e.g. gcc 3.2.3 that's technically a regression in the kernel... > -hpa 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 -- 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/