From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with ESMTP id DFEE46B01F6 for ; Mon, 17 May 2010 06:34:38 -0400 (EDT) Date: Mon, 17 May 2010 12:34:34 +0200 From: Andi Kleen Subject: Re: [PATCH 0/3] Fix boot_pageset sharing issue for new populated zones of hotadded nodes Message-ID: <20100517103434.GC20761@basil.fritz.box> References: <4BF0FBB0.1080707@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4BF0FBB0.1080707@linux.intel.com> Sender: owner-linux-mm@kvack.org To: Haicheng Li Cc: "linux-mm@kvack.org" , "akpm@linux-foundation.org" , "linux-kernel@vger.kernel.org" , "Wu, Fengguang" , Andi Kleen , Mel Gorman , Christoph Lameter , Tejun Heo List-ID: On Mon, May 17, 2010 at 04:17:52PM +0800, Haicheng Li wrote: > In our recent cpu/memory hotadd testing, with multiple nodes hotadded, > kernel easily panics under stress workload like kernel building. > > The root cause is that the new populated zones of hotadded nodes are > sharing same per_cpu_pageset, i.e. boot strapping boot_pageset, which > finally causes page state wrong. > > The following three patches will setup the pagesets for hotadded nodes > with dynamically allocated per_cpu_pageset struct. Patches look good, thanks. -Andi -- 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