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 E86E76B004D for ; Mon, 27 Jul 2009 21:03:00 -0400 (EDT) Received: from spaceape11.eur.corp.google.com (spaceape11.eur.corp.google.com [172.28.16.145]) by smtp-out.google.com with ESMTP id n6S12wS2017105 for ; Tue, 28 Jul 2009 02:02:58 +0100 Received: from pxi39 (pxi39.prod.google.com [10.243.27.39]) by spaceape11.eur.corp.google.com with ESMTP id n6S12s4R015687 for ; Mon, 27 Jul 2009 18:02:56 -0700 Received: by pxi39 with SMTP id 39so666999pxi.30 for ; Mon, 27 Jul 2009 18:02:54 -0700 (PDT) Date: Mon, 27 Jul 2009 18:02:50 -0700 (PDT) From: David Rientjes 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> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org 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 List-ID: 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, 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