From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751598AbaCaXgD (ORCPT ); Mon, 31 Mar 2014 19:36:03 -0400 Received: from mx1.redhat.com ([209.132.183.28]:23148 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751032AbaCaXgC (ORCPT ); Mon, 31 Mar 2014 19:36:02 -0400 Date: Mon, 31 Mar 2014 19:35:52 -0400 From: Dave Jones To: "Paul E. McKenney" Cc: Linux Kernel Subject: Re: rcu_prempt stalls / lockup Message-ID: <20140331233552.GB30019@redhat.com> Mail-Followup-To: Dave Jones , "Paul E. McKenney" , Linux Kernel References: <20140331230241.GA30019@redhat.com> <20140331232220.GP4284@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140331232220.GP4284@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 Mon, Mar 31, 2014 at 04:22:21PM -0700, Paul E. McKenney wrote: > On Mon, Mar 31, 2014 at 07:02:41PM -0400, Dave Jones wrote: > > You can tell the merge window is open, because I'm back to breaking RCU. > > > > ... > > [ 3558.120739] INFO: Stall ended before state dump start > > > > at that point, userspace stopped responding. cursor on console was blinking, > > but I couldn't even switch tty's, or sysrq dump. > > > > rc8 was fine, so this is todays rcu changes. > > New one on me! Any chance of a .config file? http://paste.fedoraproject.org/90449/30888213/raw/ Dave