From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757202Ab3BUSfk (ORCPT ); Thu, 21 Feb 2013 13:35:40 -0500 Received: from relay1.sgi.com ([192.48.179.29]:53529 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755975Ab3BUSfj (ORCPT ); Thu, 21 Feb 2013 13:35:39 -0500 Message-ID: <512668FA.5040505@sgi.com> Date: Thu, 21 Feb 2013 12:35:38 -0600 From: Nathan Zimmer User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 MIME-Version: 1.0 To: Stephen Boyd CC: , , Linux Kernel Subject: Re: mmotm 2013-02-19-17-20 uploaded References: <20130220012122.870BB31C11E@corp2gmr1-1.hot.corp.google.com> <5125E809.4060407@codeaurora.org> <20130221181811.GA27097@gulag1.americas.sgi.com> <51266721.5060006@codeaurora.org> In-Reply-To: <51266721.5060006@codeaurora.org> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [128.162.233.180] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/21/2013 12:27 PM, Stephen Boyd wrote: > On 2/21/2013 10:18 AM, Nathan Zimmer wrote: >> On Thu, Feb 21, 2013 at 01:25:29AM -0800, Stephen Boyd wrote: >>> On 2/19/2013 5:21 PM, akpm@linux-foundation.org wrote: >>>> * timer_list-split-timer_list_show_tickdevices.patch >>>> * timer_list-convert-timer-list-to-be-a-proper-seq_file.patch >>>> * timer_list-convert-timer-list-to-be-a-proper-seq_file-fix.patch >>>> * timer_list-convert-timer-list-to-be-a-proper-seq_file-v2.patch >>>> * timer_list-convert-timer-list-to-be-a-proper-seq_file-v2-fix.patch >>>> * timer_list-convert-timer-list-to-be-a-proper-seq_file-fix-fix.patch >>> These commits seem to break the timer list on devices with maxcpus != >>> nr_cpu_ids, which is possible if you specify maxcpus on the kernel >>> command line. I no longer see the percpu devices that I normally have >>> after the broadcast device. >> Interesting. >> However I can't seem to boot at the moment with maxcpus set to less then the actual >> number of cpus so I am not having much luck investigating right now. > It works well on ARM processors. I believe it still works on x86 devices > as well. I suppose you can simulate it by offlining a CPU and then > reading the file. Thanks I am seeing the failure now. > This comment is useful around the cpumask functions. > > Returns >= nr_cpu_ids if no further cpus set. > I had assumed it would be = nr_cpu_ids. I will need to rethink the iterator. Also I retested my other patches in the series, the ones for schedstat and sched_debug, and those worked fine.