From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753484AbaCMJA1 (ORCPT ); Thu, 13 Mar 2014 05:00:27 -0400 Received: from mail-pd0-f175.google.com ([209.85.192.175]:53584 "EHLO mail-pd0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753430AbaCMJAV (ORCPT ); Thu, 13 Mar 2014 05:00:21 -0400 Message-ID: <5321739B.1000506@linaro.org> Date: Thu, 13 Mar 2014 17:00:11 +0800 From: Alex Shi User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: Fengguang Wu CC: linux-kernel@vger.kernel.org Subject: Re: [sched/balance] INFO: possible recursive locking detected References: <20140303142526.GA8517@localhost> <5321618F.3090801@linaro.org> <20140313085341.GC27627@localhost> In-Reply-To: <20140313085341.GC27627@localhost> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/13/2014 04:53 PM, Fengguang Wu wrote: > On Thu, Mar 13, 2014 at 03:43:11PM +0800, Alex Shi wrote: >> On 03/03/2014 10:25 PM, Fengguang Wu wrote: >>> Greetings, >>> >>> I got the below dmesg and the first bad commit is >>> >>> https://github.com/alexshi/power-scheduling.git single-balance.bak >>> commit 2adc591a5cb6768ad11e63be9011906aa171148d >>> Author: Alex Shi >>> AuthorDate: Fri Feb 28 15:25:09 2014 +0800 >>> Commit: Alex Shi >>> CommitDate: Sun Mar 2 09:16:38 2014 +0800 >>> >>> sched/balance: replace new_idle_balance >>> >>> Curren idle_balance will pull task on half of this group. That is >>> not needed in central balance. >> >> >> Thanks for your testing, Fengguang! >> >> I fixed this issue and updated to the git tree. Is the single-balance >> branch still in your performance radar? :) > > Sure, however you know it's costly to queue tests for one single tree. > If your trees are directly based on -rcX kernels, that would cut the > tests required for comparison by half. Thanks a lot! I will keep in mind for this point. rebased on rc6 kernel for that branch. :) Thanks again for generous help! -- Thanks Alex