e1000_watchdog_task: NIC Link is Up/Down on kernels 2.4.15 2.4.14

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 

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


--
ŁT
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/
[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux