From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753132AbYI3Do0 (ORCPT ); Mon, 29 Sep 2008 23:44:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751264AbYI3DoS (ORCPT ); Mon, 29 Sep 2008 23:44:18 -0400 Received: from gate.crashing.org ([63.228.1.57]:51951 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751157AbYI3DoR (ORCPT ); Mon, 29 Sep 2008 23:44:17 -0400 Subject: Re: [GIT pull] timer fixes for .27 From: Benjamin Herrenschmidt Reply-To: benh@kernel.crashing.org To: paulmck@linux.vnet.ibm.com Cc: Thomas Gleixner , Linus Torvalds , Andrew Morton , LKML , Ingo Molnar In-Reply-To: <20080929224440.GG6697@linux.vnet.ibm.com> References: <20080929224440.GG6697@linux.vnet.ibm.com> Content-Type: text/plain Date: Tue, 30 Sep 2008 13:41:56 +1000 Message-Id: <1222746116.9006.23.camel@pasglop> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2008-09-29 at 15:44 -0700, Paul E. McKenney wrote: > > Please pull the latest timers-fixes-for-linus git tree from: > > > > > git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git > timers-fixes-for-linus > > > > The patches fix hard to trigger bugs in the CPU offline code of > > hrtimers which were noticed by Paul McKenney recently. In the worst > > case they can leave migrated hrtimers in a stale state. > > Acked-by: Paul E. McKenney > Tested-by: Paul E. McKenney Ah, so we found and fixed these ? Linus, those bugs are actually a regression from when we didn't use the new timer code (which isn't that long ago). It would be nice to have the fixes in .27 (and thus in the various distros that will derive from it) but I would understand if the size of the patch made you choke that late in the -rc cycle... In which case we'll be in for more backports :-) Cheers, Ben.