Re: [PLUG] Netdev Watchdog trasmit timed out, eth0 down.....my server was down, what do these messages mean?

["Chad Waters" <chad@chadcwaters.com>]

On 3/28/07, Marc Zucchelli <X> wrote:
> I was not able to ping my server this morning.  I sent a reboot request to
> the datacenter.  Unsure of where to begin investigating, I looked in
> /var/log/messages and I see these lines over and over again:
>
> Mar 28 00:32:53 localhost kernel: NETDEV WATCHDOG: eth0: transmit timed out
> Mar 28 00:32:53 localhost kernel: tg3: eth0: Link is down.
> Mar 28 00:32:55 localhost kernel: tg3: eth0: Link is up at 10 Mbps, full
> duplex.
> Mar 28 00:32:55 localhost kernel: tg3: eth0: Flow control is off for TX and
> off for RX.
> Mar 28 00:42:02 localhost kernel: APIC error on CPU0: 40(40)
>
> Has anybody seen this before?  Would this be the reason I wasn't able to
> ping the server?  What is Netdev Watchdog?  What could be causing this
> problem?  What do I need to do to get to the bottom of it and fix the
> underlying problem?
>
> Separatly, I am seeing the APIC error on CPU0: 40(40) message every few
> hours up until the beginning of the /var/log/messages file, which is March
> 25th.  The server has been up since then, I'm sure that message isn't a big
> deal, or is it?

Are you expecting a 10Mbs connection speed? There maybe some link
negotiation mismatch.

-C
___________________________________________________________________________
Philadelphia Linux Users Group         --        http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug