From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752559Ab2BBFnY (ORCPT ); Thu, 2 Feb 2012 00:43:24 -0500 Received: from relay3-d.mail.gandi.net ([217.70.183.195]:40893 "EHLO relay3-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751707Ab2BBFnX (ORCPT ); Thu, 2 Feb 2012 00:43:23 -0500 X-Originating-IP: 217.70.178.130 X-Originating-IP: 50.43.15.19 Date: Wed, 1 Feb 2012 21:43:00 -0800 From: Josh Triplett To: "Paul E. McKenney" Cc: linux-kernel@vger.kernel.org, mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, eric.dumazet@gmail.com, darren@dvhart.com, fweisbec@gmail.com, patches@linaro.org, "Paul E. McKenney" Subject: Re: [PATCH RFC tip/core/rcu 30/41] rcutorture: Permit holding off CPU-hotplug operations during boot Message-ID: <20120202054259.GQ29058@leaf> References: <20120201194131.GA10028@linux.vnet.ibm.com> <1328125319-5205-1-git-send-email-paulmck@linux.vnet.ibm.com> <1328125319-5205-30-git-send-email-paulmck@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1328125319-5205-30-git-send-email-paulmck@linux.vnet.ibm.com> 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 Wed, Feb 01, 2012 at 11:41:48AM -0800, Paul E. McKenney wrote: > When rcutorture is started automatically at boot time, it might well > also start CPU-hotplug operations at that time, which might not be > desirable. This commit therefore adds an rcutorture parameter that > allows CPU-hotplug operations to be held off for the specified number > of seconds after the start of boot. > --- a/Documentation/RCU/torture.txt > +++ b/Documentation/RCU/torture.txt > @@ -271,11 +278,13 @@ The following script may be used to torture RCU: > #!/bin/sh > > modprobe rcutorture > - sleep 100 > + sleep 3600 > rmmod rcutorture > dmesg | grep torture: This looks like an entirely unrelated change. - Josh Triplett