From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763358AbXERTVQ (ORCPT ); Fri, 18 May 2007 15:21:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754737AbXERTVH (ORCPT ); Fri, 18 May 2007 15:21:07 -0400 Received: from mga09.intel.com ([134.134.136.24]:59282 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754515AbXERTVG (ORCPT ); Fri, 18 May 2007 15:21:06 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.14,553,1170662400"; d="scan'208";a="88244118" Date: Fri, 18 May 2007 12:18:13 -0700 From: "Siddha, Suresh B" To: "Eric W. Biederman" Cc: "Siddha, Suresh B" , Yinghai Lu , mingo@elte.hu, ak@suse.de, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, "Zou, Nanhai" , "Mallick, Asit K" , "Packard, Keith" Subject: Re: [patch] x86_64, irq: check remote IRR bit before migrating level triggered irq Message-ID: <20070518191813.GC28957@linux-os.sc.intel.com> References: <20070518183941.GA28957@linux-os.sc.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 18, 2007 at 12:02:16PM -0700, Eric W. Biederman wrote: > I will look closer but I do believe that from the ioapic to the cpu the 2.6.21 > code should be fairly robust with respect to inflight messages from the ioapic > to the local apics and the cpus. What I failed to consider were inflight > messages in the other direction arriving out of order. Yes. Inflight messages from cpu to ioapic was what I was referring to. thanks, suresh