Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754513AbYGISFY (ORCPT ); Wed, 9 Jul 2008 14:05:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752116AbYGISFN (ORCPT ); Wed, 9 Jul 2008 14:05:13 -0400 Received: from netops-testserver-3-out.sgi.com ([192.48.171.28]:60310 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751851AbYGISFM (ORCPT ); Wed, 9 Jul 2008 14:05:12 -0400 Message-ID: <4874FDD6.8060402@sgi.com> Date: Wed, 09 Jul 2008 11:05:10 -0700 From: Mike Travis User-Agent: Thunderbird 2.0.0.6 (X11/20070801) MIME-Version: 1.0 To: "H. Peter Anvin" CC: Jeremy Fitzhardinge , Ingo Molnar , Andrew Morton , "Eric W. Biederman" , Christoph Lameter , Jack Steiner , linux-kernel@vger.kernel.org Subject: Re: [RFC 00/15] x86_64: Optimize percpu accesses References: <20080709165129.292635000@polaris-admin.engr.sgi.com> <4874F30C.8020800@zytor.com> <4874F7F2.6050108@sgi.com> <4874F890.5060008@zytor.com> In-Reply-To: <4874F890.5060008@zytor.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1300 Lines: 42 H. Peter Anvin wrote: > Mike Travis wrote: >> H. Peter Anvin wrote: >>> Hi Mike, >>> >>> Did the suspected linker bug issue ever get resolved? >>> >>> -hpa >> >> Hi Peter, >> >> I was not able to figure out how the two versions of the same >> kernel compiled by gcc-4.2.0 and gcc-4.2.4 differed. Currently, >> I'm sticking with gcc-4.2.4 as it boots much farther. >> >> There still is a problem where if I bump THREAD_ORDER, the >> problem goes away and everything so far that I've tested boots >> up fine. >> >> We tried to install a later gcc (4.3.1) that might have the >> "GCC_HAS_SP" flag but our sys admin reported: >> >> The 4.3.1 version gives me errors on the make. I had to >> pre-install gmp and mpfr, but, I still get errors on the make. >> >> I think that was the latest he found on the GNU/GCC site. >> > > We have seen miscompilations with gcc 4.3.0 at least; not sure about 4.3.1. > > -hpa Hmm, I wonder how the CONFIG_CC_STACKPROTECTOR was tested? Could it be a config option for building GCC itself? Thanks, Mike -- 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/