Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753491Ab3EOXzV (ORCPT ); Wed, 15 May 2013 19:55:21 -0400 Received: from e8.ny.us.ibm.com ([32.97.182.138]:60769 "EHLO e8.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751414Ab3EOXzS (ORCPT ); Wed, 15 May 2013 19:55:18 -0400 Date: Wed, 15 May 2013 16:55:13 -0700 From: "Paul E. McKenney" To: Borislav Petkov Cc: Jiri Kosina , Frederic Weisbecker , Tony Luck , linux-kernel@vger.kernel.org, x86@kernel.org Subject: Re: NOHZ: WARNING: at arch/x86/kernel/smp.c:123 native_smp_send_reschedule Message-ID: <20130515235512.GT4442@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <20130509125040.GF27333@pd.tnic> <20130509125859.GG27333@pd.tnic> <20130515184528.GO4442@linux.vnet.ibm.com> <20130515224358.GF11783@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130515224358.GF11783@pd.tnic> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13051523-9360-0000-0000-00001235DF22 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 851 Lines: 28 On Thu, May 16, 2013 at 12:43:58AM +0200, Borislav Petkov wrote: > On Wed, May 15, 2013 at 11:45:28AM -0700, Paul E. McKenney wrote: > > Does the following patch help? > > Hmm, I just tried on 3.10-rc1 > > CONFIG_NO_HZ_FULL_ALL=y > > on the one hand and then > > CONFIG_NO_HZ_FULL=y > # CONFIG_NO_HZ_FULL_ALL is not set > > with "nohz_full=4-7 rcu_nocbs=4-7" on the cmdline and I don't see the > splats anymore. > > Do I need to try something else? I never saw the problem, so I have to defer to you on this one. I will hold off on the patch unless the problem shows up again. Thanx, Paul -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/