From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265278AbUENN3L (ORCPT ); Fri, 14 May 2004 09:29:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265279AbUENN3K (ORCPT ); Fri, 14 May 2004 09:29:10 -0400 Received: from rs1.physik.Uni-Dortmund.DE ([129.217.168.30]:26074 "EHLO rs1.physik.uni-dortmund.de") by vger.kernel.org with ESMTP id S265278AbUENN3G (ORCPT ); Fri, 14 May 2004 09:29:06 -0400 Date: Fri, 14 May 2004 15:28:38 +0200 From: Robert Fendt To: linux-kernel@vger.kernel.org Subject: peculiar problem with 2.6, 8139too + ACPI Message-Id: <20040514152838.50b53d1f.fendt@physik.uni-dortmund.de> Organization: Lehrstuhl =?ISO-8859-1?B?Zvxy?= experimentelle Physik I, =?ISO-8859-1?B?VW5pdmVyc2l05HQ=?= Dortmund X-Mailer: Sylpheed version 0.7.4claws (GTK+ 1.2.10; i386-debian-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi folks, I have the following problem: the 8139too driver produces lots of overruns and is _very_ slow (but strangely not always; the problem seems to be site-dependant, too). And here is what is weird: if I artifically raise the system load (e.g. compile a kernel just for fun), the download speed grows by at least an order of magnitude. Machine is an Asus M2400N notebook, Centrino-based, 8139-internal (lspci says rev.10), kernel revisions tested now are 2.6.0, 2.6.3, 2.6.5. I did not really test 2.6.6 yet, since I am having problems getting the beast to work correctly. Distribution is Debian/unstable. My home router (quite an old machine) is not ACPI capable, so it does not show the problem (see below), and I effectively have only this one 8139-based system to test. After some detective work, I have narrowed the problem down to an apparent conflict between 8139too and the 'processor' module, and therefore to the ACPI code, which is AFAIK all-new in 2.6. If I rmmod the module, the network speed is fine, but I lose the option to use the 'thermal' module. The big question is: has anyone an idea whether this is a bug in the 8139too driver or in the ACPI code (IOW: is the problem maybe not-too-new after all and I was just too dumb to find it)? Or in which direction I should look? I am afraid I am no kernel/driver hacker (but on the other hand not a totally C newbie, either). I just want to avoid poking around in the dark and crashing my system in the process, if possible :-) Regards, Robert