From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262608AbVFJRVv (ORCPT ); Fri, 10 Jun 2005 13:21:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262610AbVFJRVv (ORCPT ); Fri, 10 Jun 2005 13:21:51 -0400 Received: from colin.muc.de ([193.149.48.1]:11535 "EHLO mail.muc.de") by vger.kernel.org with ESMTP id S262608AbVFJRVu (ORCPT ); Fri, 10 Jun 2005 13:21:50 -0400 Date: 10 Jun 2005 19:21:49 +0200 Date: Fri, 10 Jun 2005 19:21:49 +0200 From: Andi Kleen To: Shaohua Li Cc: lkml , akpm , Ashok Raj , Zwane Mwaikambo Subject: Re: [PATCH]x86-x86_64 flush cache for CPU hotplug Message-ID: <20050610172149.GP1683@muc.de> References: <1118374208.7510.6.camel@linux-hp.sh.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1118374208.7510.6.camel@linux-hp.sh.intel.com> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jun 10, 2005 at 11:30:08AM +0800, Shaohua Li wrote: > Hi, > We should flush cache at CPU hotplug. An error has been observed data is > corrupted after CPU hotplug in CPUs with bigger cache. Did you see that with actual hardware CPU hotplug? With software for testing only hotplug it should not make any difference. /Andi