From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263733AbUGYGcz (ORCPT ); Sun, 25 Jul 2004 02:32:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263731AbUGYGcz (ORCPT ); Sun, 25 Jul 2004 02:32:55 -0400 Received: from ns1.landhost.net ([66.98.188.87]:27586 "EHLO secure.landhost.net") by vger.kernel.org with ESMTP id S263733AbUGYGcx (ORCPT ); Sun, 25 Jul 2004 02:32:53 -0400 Message-ID: <41035410.2020606@marcansoft.com> Date: Sun, 25 Jul 2004 08:32:48 +0200 From: =?ISO-8859-1?Q?H=E9ctor_Mart=EDn?= User-Agent: Mozilla/5.0 (X11; U; Linux i686; es-ES; rv:1.6) Gecko/20040409 X-Accept-Language: es-es, es, en-us, en MIME-Version: 1.0 To: Linux-Kernel Subject: Re: ksoftirqd uses 99% CPU triggered by network traffic References: <4102CF17.2010207@marcansoft.com> <20040725012712.A15785@electric-eye.fr.zoreil.com> In-Reply-To: <20040725012712.A15785@electric-eye.fr.zoreil.com> X-Enigmail-Version: 0.83.3.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - secure.landhost.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - marcansoft.com X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >>Interrupt 9 is surely busy, no USB hardware plugged in just in case you're >>wondering, and normally (while not using eth2) interrupt 9 is rock solid >>(i.e. I doubt ACPI interrupts at all during normal use unless e.g. the power >>button is pressed.) >> > >At 60 kirq/s without any network traffic, you may disable acpi then usb >and eventually poke your nose in the bios setup first. No joke. > That's WITH network traffic, and I get 60k packets/s so it makes sense, but then once ksoftirqd starts using up all available cpu, I might be able to stop it by stoping the network traffic, but then any traffic makes it go nuts anyway. The problem is that after some minutes under this high-udp-packet-traffic it starts going nuts, with no prior warning. The mouse cursor just gets jerky--nothing gradual here, it just starts and then won't stop. I was talking about IRQ9 because at 60k/s it's understandable that ACPI takes some CPU trying to see if it's the intended receiver, but ksoftirqd's behaviour is obviously not normal, besides the point that it works perfectly por 10-20 minutes at least. I'll be out for a week at least and I doublt I will be able to answer back, sorry for the inconvenience, I should've posted this after acoming back. Thanks for the answer though ;)