From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 23 Jan 2003 13:23:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 23 Jan 2003 13:23:11 -0500 Received: from dhcp101-dsl-usw4.w-link.net ([208.161.125.101]:65415 "EHLO grok.yi.org") by vger.kernel.org with ESMTP id ; Thu, 23 Jan 2003 13:23:10 -0500 Message-ID: <3E30352F.1080100@candelatech.com> Date: Thu, 23 Jan 2003 10:32:15 -0800 From: Ben Greear Organization: Candela Technologies User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3a) Gecko/20021212 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Robert Olsson CC: linux-kernel Subject: Re: ksoftirqd_CPU0 spinning in 2.4.21-pre3 References: <3E2EF490.20402@candelatech.com> <15920.796.897388.111085@robur.slu.se> In-Reply-To: <15920.796.897388.111085@robur.slu.se> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Robert Olsson wrote: > Ben Greear writes: > > I happened to notice that my ksoftirqd_CPU0 process started spinning > > at 99% CPU when I plugged in the ports to a tulip NIC. I didn't see > > any significant amount of interrupts when I looked at /proc/interrupts, > > and there was no traffic running. > > > > However, this is also running a hacked up tulip-napi driver, so it > > could very well be my problem. I have not seen this on any other kernel > > in several months though... > > > > Anyway, if anyone has seen this, I'd like to know. Otherwise, I'll blame > > my code and start poking at things... > > Well it can be normal operation if box is highly loaded... There was zero network load on the box. I think there must be a bug in my napi-ization of the tulip driver. Since I coppied it almost verbatim from your stuff, you might want to check too :) Ben -- Ben Greear President of Candela Technologies Inc http://www.candelatech.com ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear