Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752228Ab0H1A3L (ORCPT ); Fri, 27 Aug 2010 20:29:11 -0400 Received: from relay1.sgi.com ([192.48.179.29]:38709 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750781Ab0H1A3J (ORCPT ); Fri, 27 Aug 2010 20:29:09 -0400 Date: Sat, 28 Aug 2010 01:28:55 +0100 From: Hedi Berriche To: "Luck, Tony" Cc: Petr Tesarik , "linux-ia64@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: Serious problem with ticket spinlocks on ia64 Message-ID: <20100828002855.GI18967@zorg.emea.sgi.com> Mail-Followup-To: "Luck, Tony" , Petr Tesarik , "linux-ia64@vger.kernel.org" , "linux-kernel@vger.kernel.org" References: <201008271537.35709.ptesarik@suse.cz> <201008272303.34228.ptesarik@suse.cz> <987664A83D2D224EAE907B061CE93D53015D91D45F@orsmsx505.amr.corp.intel.com> <201008280013.19941.ptesarik@suse.cz> <987664A83D2D224EAE907B061CE93D53015D91D604@orsmsx505.amr.corp.intel.com> <987664A83D2D224EAE907B061CE93D53015D91D645@orsmsx505.amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <987664A83D2D224EAE907B061CE93D53015D91D645@orsmsx505.amr.corp.intel.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: 859 Lines: 24 On Sat, Aug 28, 2010 at 00:55 Tony Luck wrote: | > this fails so catastrophically | | Interesting ... getting rid of some of the fancy asm bits | (replacing both the ld4.c.nc and the ld2.bias with simple | "serve = *p" and "tmp = *p") makes this run a lot better. *Hasty* look seems to suggest that keeping the fancy asm bits but compiling with -O2 -frename-registers makes it work equally well. Don't take my word for it though, double check it, it's been a long week and brain is anything but alert at this time of the night. Cheers, Hedi. -- Hedi Berriche Global Product Support http://www.sgi.com/support -- 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/