From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753469AbaCMIxr (ORCPT ); Thu, 13 Mar 2014 04:53:47 -0400 Received: from [143.182.124.37] ([143.182.124.37]:9497 "EHLO mga14.intel.com" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1753192AbaCMIxo (ORCPT ); Thu, 13 Mar 2014 04:53:44 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,645,1389772800"; d="scan'208";a="491107460" Date: Thu, 13 Mar 2014 16:53:41 +0800 From: Fengguang Wu To: Alex Shi Cc: linux-kernel@vger.kernel.org Subject: Re: [sched/balance] INFO: possible recursive locking detected Message-ID: <20140313085341.GC27627@localhost> References: <20140303142526.GA8517@localhost> <5321618F.3090801@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5321618F.3090801@linaro.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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, Fengguang