Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753951AbZJUPTD (ORCPT ); Wed, 21 Oct 2009 11:19:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753703AbZJUPTA (ORCPT ); Wed, 21 Oct 2009 11:19:00 -0400 Received: from hera.kernel.org ([140.211.167.34]:39428 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753500AbZJUPTA (ORCPT ); Wed, 21 Oct 2009 11:19:00 -0400 Message-ID: <4ADF2691.7070304@kernel.org> Date: Thu, 22 Oct 2009 00:19:45 +0900 From: Tejun Heo User-Agent: Thunderbird 2.0.0.23 (X11/20090817) MIME-Version: 1.0 To: Ingo Molnar CC: Jeff Mahoney , Jiri Kosina , Peter Zijlstra , Linux Kernel Mailing List , Tony Luck , Fenghua Yu , linux-ia64@vger.kernel.org Subject: Re: Commit 34d76c41 causes linker errors on ia64 with NR_CPUS=4096 References: <4ADB967A.4080707@suse.com> <4ADD48D1.1040701@kernel.org> <4ADD54D4.70808@kernel.org> <4ADD5530.3050107@kernel.org> <4ADDC69A.5000701@suse.com> <4ADDCDED.6060706@suse.com> <20091021061109.GA27195@elte.hu> In-Reply-To: <20091021061109.GA27195@elte.hu> X-Enigmail-Version: 0.95.7 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: 1049 Lines: 26 Ingo Molnar wrote: > * Jeff Mahoney wrote: > >> This version fixes a build issue (__alignof__(unsigned long)) and >> fixes the percpu lookup to be usd = percpu array pointer, usd[i] = >> actual variable. > > Before applying this part-workaround i'd like to see confirmation that > the IA64 limitation is being fixed. It would be bad for such bugs to pop > up again and again in the future, with a 2 months bug fixing latency. I talked with Christoph earlier and he basically said that the constant can just be bumped up without any ill effect (it would be great if Tony Luck can confirm this). So, it's an annoying thing and in the long term removing would be a good idea but I don't think it's anything major as long as it blows up during build not runtime. Thanks. -- tejun -- 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/