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, 21 Nov 2002 18:22:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 21 Nov 2002 18:22:49 -0500 Received: from roc-24-93-20-125.rochester.rr.com ([24.93.20.125]:3319 "EHLO www.kroptech.com") by vger.kernel.org with ESMTP id ; Thu, 21 Nov 2002 18:22:49 -0500 Date: Thu, 21 Nov 2002 18:29:49 -0500 From: Adam Kropelin To: Neil Cafferkey Cc: linux-kernel@vger.kernel.org Subject: Re: Setting MAC address in ewrk3 driver Message-ID: <20021121232949.GA4654@www.kroptech.com> References: <20021121195417.A18859@cuc.ucc.ie> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20021121195417.A18859@cuc.ucc.ie> User-Agent: Mutt/1.3.28i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 21, 2002 at 07:54:17PM +0000, Neil Cafferkey wrote: > Hi, > > I think I may have found a bug in the ewrk3 network driver. When I try to > change the MAC address of a Digital DE205 NIC using "ifconfig eth0 hw > ether XX:XX:XX:XX:XX:XX", it appears to work ("ifconfig eth0" reports the > new address), but in fact it isn't sending or receiving packets any more. > I'm using kernel version 2.4.10. Try the driver from 2.4.20-rc2. There are some locking updates in the ioctl code for setting the hw address. I'm running 2.5 (approx same driver as 2.4.20-rc2) here and I observe that the address really does change (i.e. I see packets on the wire with the new MAC addr) but the kernel oopses shortly thereafter somewhere in the network stack. I'm blaming this on 2.5 instability for the moment but will fix it if it turns out to be ewrk3's fault. --Adam