From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754124Ab2I0GpE (ORCPT ); Thu, 27 Sep 2012 02:45:04 -0400 Received: from mail-wi0-f172.google.com ([209.85.212.172]:39315 "EHLO mail-wi0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751378Ab2I0GpB (ORCPT ); Thu, 27 Sep 2012 02:45:01 -0400 Date: Thu, 27 Sep 2012 08:44:56 +0200 From: Ingo Molnar To: akpm@linux-foundation.org Cc: mm-commits@vger.kernel.org, alex.shi@intel.com, cpw@sgi.com, hpa@zytor.com, jbeulich@suse.com, mingo@elte.hu, tglx@linutronix.de, linux-kernel@vger.kernel.org Subject: Re: + uv-fix-incorrect-tlb-flush-all-issue.patch added to -mm tree Message-ID: <20120927064456.GC5996@gmail.com> References: <20120926223058.F0844100047@wpzn3.hot.corp.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120926223058.F0844100047@wpzn3.hot.corp.google.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 * akpm@linux-foundation.org wrote: > The flush tlb optimization code has logical issue on UV > platform. It doesn't flush the full range at all, since it > simply ignores its 'end' parameter (and hence also the "all" > indicator) in uv_flush_tlb_others() function. In other words it's a user-space data corruptor showstopper bug fix for the UV platform, which should get high tip:x86/urgent priority, right? It's generally useful to put such info right into the patch title. 'fix issue' sounds a tad too harmless. Thanks, Ingo