From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265044AbUHJNXY (ORCPT ); Tue, 10 Aug 2004 09:23:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264808AbUHJNUo (ORCPT ); Tue, 10 Aug 2004 09:20:44 -0400 Received: from mx2.elte.hu ([157.181.151.9]:39574 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S265214AbUHJNPW (ORCPT ); Tue, 10 Aug 2004 09:15:22 -0400 Date: Tue, 10 Aug 2004 15:16:28 +0200 From: Ingo Molnar To: William Lee Irwin III , V13 , Jesse Barnes , Andrew Morton , linux-kernel@vger.kernel.org, Nick Piggin Subject: Re: 2.6.8-rc3-mm2 Message-ID: <20040810131628.GA28167@elte.hu> References: <200408091217.50786.jbarnes@engr.sgi.com> <20040810100234.GN11200@holomorphy.com> <20040810115307.GR11200@holomorphy.com> <200408101552.22501.v13@priest.com> <20040810125140.GU11200@holomorphy.com> <20040810125529.GA22650@elte.hu> <20040810125651.GV11200@holomorphy.com> <20040810130122.GA26326@elte.hu> <20040810141220.B20890@flint.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040810141220.B20890@flint.arm.linux.org.uk> User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Russell King wrote: > Except serial console IO does not generate _any_ IRQ traffic - it > purposely disables IRQs on the device before starting any IO to > prevent any user-level IO interfering with the console output. indeed - but it does generate _some_ IRQ traffic still: 3: 251 IO-APIC-edge serial this is from a box that uses the serial line only for the kernel console. Ingo