From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757564Ab0ITXIJ (ORCPT ); Mon, 20 Sep 2010 19:08:09 -0400 Received: from hera.kernel.org ([140.211.167.34]:49244 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754073Ab0ITXII (ORCPT ); Mon, 20 Sep 2010 19:08:08 -0400 Message-ID: <4C97E9A6.6030909@kernel.org> Date: Tue, 21 Sep 2010 01:09:26 +0200 From: Tejun Heo User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.2.9) Gecko/20100915 Lightning/1.0b2 Thunderbird/3.1.4 MIME-Version: 1.0 To: caiqian@redhat.com CC: graff yang , Marcelo Tosatti , kexec , linux-kernel , dhowells@redhat.com, sonic adi , Chris Lalancette , Avi Kivity Subject: Re: kvm kdump regression References: <1841599922.1349991284977843873.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> In-Reply-To: <1841599922.1349991284977843873.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> X-Enigmail-Version: 1.1.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Mon, 20 Sep 2010 23:07:50 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, Thanks a lot for testing. Can you please verify whether the following patch fixes the problem? diff --git a/mm/percpu.c b/mm/percpu.c index 58c572b..c76ef38 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1401,9 +1401,9 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, if (pcpu_first_unit_cpu == NR_CPUS) pcpu_first_unit_cpu = cpu; + pcpu_last_unit_cpu = cpu; } } - pcpu_last_unit_cpu = cpu; pcpu_nr_units = unit; for_each_possible_cpu(cpu)