Fwd: Re: [vortex] Strange 3c905c problem

[Rolf]

On 2002.06.22 15:20 Donald Becker wrote:
> On Sat, 22 Jun 2002, Rolf wrote:
> > On 2002.06.22 05:09 Donald Becker wrote:
> > > On Fri, 21 Jun 2002, Rolf wrote:
> > >
> > > > I run a server with a Asus A7V266-e motherboard and 3c905c network
> card
> > > > and kernel 2.4.18.
> > > > Everything works fine when using a 10Mbs connection. When I switch
> to a
> > > > 100Mbs connection traffic from the server works fine, but as soon
> as I
> > > try
> > > > to download something to the server the network connection stops
> > > > completely (no traffic in or out). When I stop the download the
> > > connection
> > > > starts functioning again after a few seconds.
> 
> That might mean the driver is automatically recovering from an error.
> There should be a logged error message when this happens.
> 
> > > Any errors reported in /proc/net/dev?
> > Now running at 10Mbs, and i have no phisical access to the server
> during
> > the weekend, thus I can't switch to 100Mbs
> 
> Check the error counts while running at 100Mbps.

With debug=7 and running at 100Mbs I get the flowing error:

Jun 24 12:10:09 www kernel:  Rx error: status 08.
Jun 24 12:10:46 www kernel: eth0: Media selection timer tick happened,
Autonegotiate half duplex.
Jun 24 12:10:46 www kernel: eth0: MII transceiver has status 7829.
Jun 24 12:10:46 www kernel: eth0: Media selection timer finished,
Autonegotiate.
Jun 24 12:11:46 www kernel: eth0: Media selection timer tick happened,
Autonegotiate half duplex.
Jun 24 12:11:46 www kernel: eth0: MII transceiver has status 782d.
Jun 24 12:11:46 www kernel: eth0: Media selection timer finished,
Autonegotiate.

> 
> > > My first guess is that you have a duplex mismatch and out-of-window
> > > collisions.
> >
> > The problem accists at 100baseTx-HD and 100baseTx-FD autonegotiation
> works
> > fine with the switch.
> 
> OK, then most errors are be caused by cable problems, usually mispairing.