From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758200AbZBFCek (ORCPT ); Thu, 5 Feb 2009 21:34:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752467AbZBFCe2 (ORCPT ); Thu, 5 Feb 2009 21:34:28 -0500 Received: from mga14.intel.com ([143.182.124.37]:51972 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752089AbZBFCe1 (ORCPT ); Thu, 5 Feb 2009 21:34:27 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.37,389,1231142400"; d="scan'208";a="107766109" Subject: Re: [PATCH v2] NOHZ: fix nohz on cpu unplug From: Suresh Siddha Reply-To: Suresh Siddha To: Mark Lord Cc: Ingo Molnar , Christian Borntraeger , Thomas Gleixner , "linux-kernel@vger.kernel.org" , Heiko Carstens , Martin Schwidefsky In-Reply-To: <498B43D9.2080800@rtr.ca> References: <200901301729.30284.borntraeger@de.ibm.com> <200902030948.13519.borntraeger@de.ibm.com> <20090203122847.GG19979@elte.hu> <200902040719.25593.borntraeger@de.ibm.com> <1233777584.16238.16.camel@vayu> <20090204213202.GP22608@elte.hu> <498B43D9.2080800@rtr.ca> Content-Type: text/plain Organization: Intel Corp Date: Thu, 05 Feb 2009 18:33:27 -0800 Message-Id: <1233887607.16238.47.camel@vayu> Mime-Version: 1.0 X-Mailer: Evolution 2.6.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2009-02-05 at 11:54 -0800, Mark Lord wrote: > How far back in (kernel release) time does this problem exist? > Candidate for -stable ? Problem is present for a while now. But I don't think this is a common case scenario (as the issue happens only for the duration when we leave a cpu offline, and it should get fixed the moment that logical cpu is back online). thanks, suresh