From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754557AbbCIUop (ORCPT ); Mon, 9 Mar 2015 16:44:45 -0400 Received: from e33.co.us.ibm.com ([32.97.110.151]:51513 "EHLO e33.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753864AbbCIUok (ORCPT ); Mon, 9 Mar 2015 16:44:40 -0400 Date: Mon, 9 Mar 2015 13:44:33 -0700 From: "Paul E. McKenney" To: Sebastian Andrzej Siewior Cc: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org, Steven Rostedt Subject: Re: RCU stalls on heavy socket traffic Message-ID: <20150309204433.GA5236@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <20150309152651.GD13768@linutronix.de> <20150309155947.GW5236@linux.vnet.ibm.com> <20150309163915.GF13768@linutronix.de> <20150309180212.GX5236@linux.vnet.ibm.com> <54FE0177.7010407@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54FE0177.7010407@linutronix.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15030920-0009-0000-0000-0000095BC691 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 09, 2015 at 09:24:23PM +0100, Sebastian Andrzej Siewior wrote: > On 03/09/2015 07:02 PM, Paul E. McKenney wrote: > > abaf3f9d275b (rcu: Revert "Allow post-unlock reference for rt_mutex" to avoid priority-inversion) > > > > This patch fixed a priority-inversion problem, so might well fix your > > RCU CPU stall-warning problem. > > Yes, it fixes the problem. Thank you. Glad it helped! Whew!!! ;-) Thanx, Paul