From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758499Ab3LFOyt (ORCPT ); Fri, 6 Dec 2013 09:54:49 -0500 Received: from e36.co.us.ibm.com ([32.97.110.154]:56260 "EHLO e36.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758477Ab3LFOyr (ORCPT ); Fri, 6 Dec 2013 09:54:47 -0500 Date: Fri, 6 Dec 2013 06:54:41 -0800 From: "Paul E. McKenney" To: Jochen Striepe Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: 3.10.5: rcu_sched detected stalls on CPUs/tasks Message-ID: <20131206145441.GA24148@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <20130813103202.GB2338@pompeji.miese-zwerge.org> <20130818180232.GL29406@linux.vnet.ibm.com> <20130818184848.GA2398@pompeji.miese-zwerge.org> <20130909215836.GD17483@pompeji.miese-zwerge.org> <20130909222751.GL3966@linux.vnet.ibm.com> <20130914112834.GM1509@pompeji.miese-zwerge.org> <20130923164931.GC2322@pompeji.miese-zwerge.org> <20131206002614.GD15492@linux.vnet.ibm.com> <20131206135804.GI2208@pompeji.miese-zwerge.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20131206135804.GI2208@pompeji.miese-zwerge.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13120614-3532-0000-0000-0000039CB27B Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Dec 06, 2013 at 02:58:04PM +0100, Jochen Striepe wrote: > Hi again, > > On Thu, Dec 05, 2013 at 04:26:14PM -0800, Paul E. McKenney wrote: > > Hmmm... Does the following patch help? > [...] > > rcu: Kick CPU halfway to RCU CPU stall warning > > The stall didn't appear at all since my last email, running 3.12.x > kernels since release. But I will test your patch later today. I assume > applying on top of 3.12.3 is correct? 3.12.3 should take that patch just fine. Thanx, Paul