From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262474AbVEMVeR (ORCPT ); Fri, 13 May 2005 17:34:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262552AbVEMVaj (ORCPT ); Fri, 13 May 2005 17:30:39 -0400 Received: from viper.oldcity.dca.net ([216.158.38.4]:46247 "HELO viper.oldcity.dca.net") by vger.kernel.org with SMTP id S262503AbVEMV16 (ORCPT ); Fri, 13 May 2005 17:27:58 -0400 Subject: Re: [discuss] Re: [PATCH] adjust x86-64 watchdog tick calculation From: Lee Revell To: Pavel Machek Cc: Andi Kleen , Alexander Nyberg , Jan Beulich , discuss@x86-64.org, linux-kernel@vger.kernel.org In-Reply-To: <20050513195215.GC3135@elf.ucw.cz> References: <1115892008.918.7.camel@localhost.localdomain> <20050512142920.GA7079@openzaurus.ucw.cz> <20050513113023.GD15755@wotan.suse.de> <20050513195215.GC3135@elf.ucw.cz> Content-Type: text/plain; charset=ISO-8859-1 Date: Fri, 13 May 2005 17:27:56 -0400 Message-Id: <1116019676.6380.37.camel@mindpipe> Mime-Version: 1.0 X-Mailer: Evolution 2.3.1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2005-05-13 at 21:52 +0200, Pavel Machek wrote: > On Pá 13-05-05 13:30:23, Andi Kleen wrote: > > > Because it kills machine when interrupt latency gets too high? > > > Like reading battery status using i2c... > > > > That's a bug in the I2C reader then. Don't shot the messenger for bad news. > > Disagreed. > > Linux is not real time OS. Perhaps some real-time constraints "may not > spend > 100msec with interrupts disabled" would be healthy ^^^^ You mean "microseconds", right? 100ms will be perceived by the user as, well, their machine freezing for 100ms... Lee