From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S272060AbTG1CBa (ORCPT ); Sun, 27 Jul 2003 22:01:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S272057AbTG1ABL (ORCPT ); Sun, 27 Jul 2003 20:01:11 -0400 Received: from jstevenson.plus.com ([212.159.71.212]:49539 "EHLO alpha.stev.org") by vger.kernel.org with ESMTP id S272689AbTG0XTB (ORCPT ); Sun, 27 Jul 2003 19:19:01 -0400 Date: Mon, 28 Jul 2003 01:37:48 +0100 (BST) From: James Stevenson To: Doruk Fisek cc: linux-kernel@vger.kernel.org Subject: Re: hw tcp v4 csum failed In-Reply-To: <20030727100246.4bfb860c.dfisek@fisek.com.tr> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > Hi, > > I am getting "hw tcp v4 csum failed" errors using a BCM5701 ethernet > adapter with the tigon3 driver in a vanilla 2.4.20 kernel. > > There seems to be no apparent problem (probably because of low-load). > > What can be the cause of these errors? if it isnt a software problem. Its probably a problem releated to the cable or surrounding interference on the cable. a) loose connection either on back of machine or @ the hub / switch etc.. b) there is a large power supply sitting very close to the cable. i have seen the transformers on scanners / printers etc.. strong enough todo this is the cable gets wrapped around it James