Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932168AbWAEUaS (ORCPT ); Thu, 5 Jan 2006 15:30:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932169AbWAEUaR (ORCPT ); Thu, 5 Jan 2006 15:30:17 -0500 Received: from portraits.wsisiz.edu.pl ([213.135.44.34]:42619 "EHLO portraits.wsisiz.edu.pl") by vger.kernel.org with ESMTP id S932168AbWAEUaQ convert rfc822-to-8bit (ORCPT ); Thu, 5 Jan 2006 15:30:16 -0500 Date: Thu, 5 Jan 2006 21:29:54 +0100 (CET) From: Lukasz Trabinski To: linux-kernel@vger.kernel.org cc: linux-netdev@vger.kernel.org Subject: e1000_watchdog_task: NIC Link is Up/Down on kernels 2.4.15 2.4.14 Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=ISO-8859-2; format=flowed Content-Transfer-Encoding: 8BIT X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-1.6 (portraits.wsisiz.edu.pl [127.0.0.1]); Thu, 05 Jan 2006 21:30:14 +0100 (CET) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2913 Lines: 88 Hello I have machine with build in ethernet interafce, system is Linux Fedora Core 4. Ethernet controller: Intel Corporation 82541GI/PI Gigabit Ethernet Controller. It's connected to cisco Catalyst 4000 switch: #show interface GigabitEthernet3/5 GigabitEthernet3/5 is up, line protocol is up (connected) Hardware is Gigabit Ethernet Port, address is xxx Description: xxx MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 1000Mb/s, link type is auto, media type is 10/100/1000-TX input flow-control is off, output flow-control is off configuration on switch interface: interface GigabitEthernet3/5 switchport mode access switchport nonegotiate logging event link-status no cdp enable end on linux machine: [root@w3cache ~]# ethtool eth0 Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: umbg Wake-on: g Current message level: 0x00000007 (7) Link detected: yes Some times I observe flaping eth0 interface: Jan 5 18:31:19 w3cache kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Down Jan 5 18:31:21 w3cache kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Up 1000 Mbps Full Duplex Jan 5 18:31:25 w3cache kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Down Jan 5 18:31:27 w3cache kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Up 1000 Mbps Full Duplex Jan 5 18:56:30 w3cache kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Down Jan 5 18:56:33 w3cache kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Up 1000 Mbps Full Duplex Patchcords and other physical layer is OK. Tested kernels kernel-2.6.14-1.1653_FC4 and latest vanilla 2.4.15. I have tried set full duplex, speed 1000 on switch but it's happan again. On cisco switch i don't have seen any flaps this interface or any errors. Any idea? Thank You. I have also commited this problem to redhat bugzilla: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=177043 -- ?T - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/