From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263056AbTFDHeX (ORCPT ); Wed, 4 Jun 2003 03:34:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263062AbTFDHeW (ORCPT ); Wed, 4 Jun 2003 03:34:22 -0400 Received: from twilight.ucw.cz ([81.30.235.3]:18321 "EHLO twilight.ucw.cz") by vger.kernel.org with ESMTP id S263056AbTFDHeW (ORCPT ); Wed, 4 Jun 2003 03:34:22 -0400 Date: Wed, 4 Jun 2003 09:47:37 +0200 From: Vojtech Pavlik To: Andrew Morton Cc: Yoann , linux-kernel@vger.kernel.org, Vojtech Pavlik , "Albert D.Cahalan" Subject: Re: another must-fix: major PS/2 mouse problem Message-ID: <20030604094737.C5345@ucw.cz> References: <1054431962.22103.744.camel@cube> <3EDD87FD.6020307@ifrance.com> <20030603232155.1488c02f.akpm@digeo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20030603232155.1488c02f.akpm@digeo.com>; from akpm@digeo.com on Tue, Jun 03, 2003 at 11:21:55PM -0700 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 03, 2003 at 11:21:55PM -0700, Andrew Morton wrote: > We believe that it may be due to the ethernet driver holding interrupts off > for too long when the traffic is heavy. Note that this doesn't necessarily mean that the ethernet driver disables the interrupts for a too long time, it just means that the computer is only servicing the network interrupts at that time, and since the mouse interrupt does have a lower priority, it's serviced not very often and with huge delays. In such a case the network driver should either use interrupt mitigation if the cards supports it (reading many packets per one interrupt) or switch to a polled mode. > Does that seem to match your observations? Does the problem happen when > the net traffic is high? > > Which ethernet driver are you using? -- Vojtech Pavlik SuSE Labs, SuSE CR