From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755366Ab0BSSWi (ORCPT ); Fri, 19 Feb 2010 13:22:38 -0500 Received: from nlpi129.sbcis.sbc.com ([207.115.36.143]:51242 "EHLO nlpi129.prodigy.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755288Ab0BSSWg (ORCPT ); Fri, 19 Feb 2010 13:22:36 -0500 Date: Fri, 19 Feb 2010 12:22:09 -0600 (CST) From: Christoph Lameter X-X-Sender: cl@router.home To: Andi Kleen cc: Nick Piggin , penberg@cs.helsinki.fi, linux-kernel@vger.kernel.org, linux-mm@kvack.org, haicheng.li@intel.com, rientjes@google.com Subject: Re: [PATCH] [4/4] SLAB: Fix node add timer race in cache_reap In-Reply-To: <20100215103250.GD21783@one.firstfloor.org> Message-ID: References: <20100211953.850854588@firstfloor.org> <20100211205404.085FEB1978@basil.firstfloor.org> <20100215061535.GI5723@laptop> <20100215103250.GD21783@one.firstfloor.org> User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 15 Feb 2010, Andi Kleen wrote: > > How, may I ask? cpuup_prepare in the hotplug notifier should always > > run before start_cpu_timer. > > I'm not fully sure, but I have the oops to prove it :) I still suspect that this has something to do with Pekka's changing the boot order for allocator bootstrap. Can we clarify why these problems exist before we try band aid? From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with SMTP id 320326B0095 for ; Fri, 19 Feb 2010 13:22:34 -0500 (EST) Date: Fri, 19 Feb 2010 12:22:09 -0600 (CST) From: Christoph Lameter Subject: Re: [PATCH] [4/4] SLAB: Fix node add timer race in cache_reap In-Reply-To: <20100215103250.GD21783@one.firstfloor.org> Message-ID: References: <20100211953.850854588@firstfloor.org> <20100211205404.085FEB1978@basil.firstfloor.org> <20100215061535.GI5723@laptop> <20100215103250.GD21783@one.firstfloor.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Andi Kleen Cc: Nick Piggin , penberg@cs.helsinki.fi, linux-kernel@vger.kernel.org, linux-mm@kvack.org, haicheng.li@intel.com, rientjes@google.com List-ID: On Mon, 15 Feb 2010, Andi Kleen wrote: > > How, may I ask? cpuup_prepare in the hotplug notifier should always > > run before start_cpu_timer. > > I'm not fully sure, but I have the oops to prove it :) I still suspect that this has something to do with Pekka's changing the boot order for allocator bootstrap. Can we clarify why these problems exist before we try band aid? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org