Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751645AbZJWHwI (ORCPT ); Fri, 23 Oct 2009 03:52:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751300AbZJWHwH (ORCPT ); Fri, 23 Oct 2009 03:52:07 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:45511 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751214AbZJWHwF (ORCPT ); Fri, 23 Oct 2009 03:52:05 -0400 Date: Fri, 23 Oct 2009 09:51:51 +0200 From: Ingo Molnar To: "Luck, Tony" Cc: Jiri Kosina , Tejun Heo , Jeff Mahoney , Peter Zijlstra , Linux Kernel Mailing List , "Yu, Fenghua" , "linux-ia64@vger.kernel.org" Subject: Re: Commit 34d76c41 causes linker errors on ia64 with NR_CPUS=4096 Message-ID: <20091023075151.GB10067@elte.hu> References: <4ADD54D4.70808@kernel.org> <4ADD5530.3050107@kernel.org> <4ADDC69A.5000701@suse.com> <4ADDCDED.6060706@suse.com> <20091021061109.GA27195@elte.hu> <4ADF2691.7070304@kernel.org> <57C9024A16AD2D4C97DC78E552063EA3E337CF79@orsmsx505.amr.corp.intel.com> <57C9024A16AD2D4C97DC78E552063EA3E337D94C@orsmsx505.amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <57C9024A16AD2D4C97DC78E552063EA3E337D94C@orsmsx505.amr.corp.intel.com> User-Agent: Mutt/1.5.19 (2009-01-05) X-ELTE-SpamScore: 0.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=0.0 required=5.9 tests=none autolearn=no SpamAssassin version=3.2.5 _SUMMARY_ Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 862 Lines: 23 * Luck, Tony wrote: > > Tony, is the change that will eventually have to be made to ia64 > > pagefault handler too intrusive for -rc6, and should we rather go > > with my workaround instead, and try to find something proper for > > 2.6.33? > > Using __alloc_percpu() rather than static declaration looks to be the > right fix here. Not a "workaround". It is a workaround for the IA64 build failure. It's also an improvement of the scheduler code (we generally try to eliminate NR_CPUs scaling of allocations) - but code improvements need to happen much sooner than -rc6/-rc7. Ingo -- 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/