From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757110AbYESMxy (ORCPT ); Mon, 19 May 2008 08:53:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750906AbYESMxr (ORCPT ); Mon, 19 May 2008 08:53:47 -0400 Received: from smtp-out01.alice-dsl.net ([88.44.60.11]:60516 "EHLO smtp-out01.alice-dsl.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750813AbYESMxq (ORCPT ); Mon, 19 May 2008 08:53:46 -0400 To: "Maciej W. Rozycki" Cc: Ingo Molnar , Thomas Gleixner , linux-kernel@vger.kernel.org Subject: Re: [PATCH] I/O APIC: Timer through 8259A revamp From: Andi Kleen References: Date: Mon, 19 May 2008 14:52:01 +0200 In-Reply-To: (Maciej W. Rozycki's message of "Sun, 18 May 2008 04:35:54 +0100 (BST)") Message-ID: <87hccubgni.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-OriginalArrivalTime: 19 May 2008 12:44:58.0861 (UTC) FILETIME=[25BC61D0:01C8B9AE] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org "Maciej W. Rozycki" writes: > --- > It works for my system, but it definitely requires much, much more > testing. The patch depends on patch-2.6.26-rc1-20080505-timer_ack-1 sent > earlier. I tried to clean up this code in the past too, but one experience I got was that even a lot of relatively modern systems (<5 years old) fall into the fallback paths unfortunately and it's quite difficult to find out why. Also Windows uses a different timer set up so this configuration is often not well tested. -Andi