Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754444AbYAYDRO (ORCPT ); Thu, 24 Jan 2008 22:17:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752249AbYAYDQ7 (ORCPT ); Thu, 24 Jan 2008 22:16:59 -0500 Received: from mga01.intel.com ([192.55.52.88]:30878 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752002AbYAYDQ6 (ORCPT ); Thu, 24 Jan 2008 22:16:58 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.25,247,1199692800"; d="scan'208";a="507892172" Subject: Re: [RFC] some page can't be migrated From: Shaohua Li To: Christoph Lameter Cc: Nick Piggin , lkml , Andrew Morton In-Reply-To: References: <1201069357.32059.13.camel@sli10-desk.sh.intel.com> <200801251403.23236.nickpiggin@yahoo.com.au> <1201230571.28282.2.camel@sli10-desk.sh.intel.com> Content-Type: text/plain Date: Fri, 25 Jan 2008 11:18:16 +0800 Message-Id: <1201231096.28282.5.camel@sli10-desk.sh.intel.com> Mime-Version: 1.0 X-Mailer: Evolution 2.12.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 688 Lines: 23 On Thu, 2008-01-24 at 19:12 -0800, Christoph Lameter wrote: > On Fri, 25 Jan 2008, Shaohua Li wrote: > > > the page is still in lru list. Memory hot remove will try to migrate the > > page. > > So this is an abandoned page with a refcount that only exists because of > fs private data? Yes, this is what I observed. > Truncate race? truncate_complete_page could fail to remove fs private data, this is the comments say. Thanks, Shaohua -- 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/