Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752895AbZG1BDC (ORCPT ); Mon, 27 Jul 2009 21:03:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752703AbZG1BDB (ORCPT ); Mon, 27 Jul 2009 21:03:01 -0400 Received: from smtp-out.google.com ([216.239.45.13]:33180 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751159AbZG1BDA (ORCPT ); Mon, 27 Jul 2009 21:03:00 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=date:from:x-x-sender:to:cc:subject:in-reply-to:message-id: references:user-agent:mime-version:content-type:x-system-of-record; b=cU7oBOVnEbuT0jvtdnd+Gal4NZ7AVBH4/jWTnBmLZMT+UmqdBcOGbIv2nehxXlhJW uZSRzHUDm9WAUKj0+z9pg== Date: Mon, 27 Jul 2009 18:02:50 -0700 (PDT) From: David Rientjes X-X-Sender: rientjes@chino.kir.corp.google.com To: KAMEZAWA Hiroyuki cc: Andrew Morton , Lee Schermerhorn , KOSAKI Motohiro , miaox@cn.fujitsu.com, Ingo Molnar , Peter Zijlstra , Christoph Lameter , Paul Menage , Nick Piggin , y-goto@jp.fujitsu.com, Pekka Enberg , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [BUG] set_mempolicy(MPOL_INTERLEAV) cause kernel panic In-Reply-To: <20090728095453.1fe79de1.kamezawa.hiroyu@jp.fujitsu.com> Message-ID: References: <20090715182320.39B5.A69D9226@jp.fujitsu.com> <1247679064.4089.26.camel@useless.americas.hpqcorp.net> <20090724160936.a3b8ad29.akpm@linux-foundation.org> <337c5d83954b38b14a17f0adf4d357d8.squirrel@webmail-b.css.fujitsu.com> <5bb65c0e4c6828b1331d33745f34d9ee.squirrel@webmail-b.css.fujitsu.com> <9443f91bd4648e6214b32acff4512b97.squirrel@webmail-b.css.fujitsu.com> <20090728085810.f7ae678a.kamezawa.hiroyu@jp.fujitsu.com> <20090728092529.bb0d7e9c.kamezawa.hiroyu@jp.fujitsu.com> <20090728095453.1fe79de1.kamezawa.hiroyu@jp.fujitsu.com> User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-System-Of-Record: true Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 894 Lines: 22 On Tue, 28 Jul 2009, KAMEZAWA Hiroyuki wrote: > > The problem originally reported here doesn't appear to have anything to do > > with hotplug, it looks like it is the result of Lee's observation that > > ia64 defaults top_cpuset's mems to N_POSSIBLE, which _should_ have been > > updated by cpuset_init_smp(). > cpuset_init_smp() just updates cpuset's mask. > init's task->mems_allowed is intizialized independently from cpuset's mask. > Presumably the bug is that N_HIGH_MEMORY is not a subset of N_ONLINE at this point on ia64. > Could you teach me a pointer for Lee's observation ? > http://marc.info/?l=linux-kernel&m=124767909310293 -- 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/