From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Jones Subject: 2.6.21rc7 e1000 media-detect oddness. Date: Sun, 15 Apr 2007 23:45:39 -0400 Message-ID: <20070416034539.GC21217@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: netdev@vger.kernel.org Return-path: Received: from mx1.redhat.com ([66.187.233.31]:51469 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754427AbXDPDpm (ORCPT ); Sun, 15 Apr 2007 23:45:42 -0400 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.13.1/8.13.1) with ESMTP id l3G3jeSF003997 for ; Sun, 15 Apr 2007 23:45:41 -0400 Received: from gelk.kernelslacker.org (vpn-248-7.boston.redhat.com [10.13.248.7]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id l3G3jews025187 for ; Sun, 15 Apr 2007 23:45:40 -0400 Received: from gelk.kernelslacker.org (localhost.localdomain [127.0.0.1]) by gelk.kernelslacker.org (8.13.8/8.13.8) with ESMTP id l3G3je6i002055 for ; Sun, 15 Apr 2007 23:45:40 -0400 Received: (from davej@localhost) by gelk.kernelslacker.org (8.13.8/8.13.8/Submit) id l3G3jdue002054 for netdev@vger.kernel.org; Sun, 15 Apr 2007 23:45:39 -0400 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org I booted up 2.6.21rc7 without an ethernet cable plugged in, and noticed this.. e1000: 0000:02:00.0: e1000_probe: The EEPROM Checksum Is Not Valid e1000: probe of 0000:02:00.0 failed with error -5 I plugged a cable in, did rmmod e1000;modprobe e1000, and got this.. e1000: 0000:02:00.0: e1000_probe: (PCI Express:2.5Gb/s:Width x1) 00:16:d3:3a:62:d3 e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX e1000: eth0: e1000_watchdog: 10/100 speed: disabling TSO and it works fine.. Why would no cable make it think the EEPROM is invalid ? I repeated this a few times, just to be sure it wasn't a fluke, and it seems to happen 100% reproducably. Dave -- http://www.codemonkey.org.uk