an0: device timeout on x31

Sepherosa Ziehau sepherosa at
Tue Apr 8 18:50:57 PDT 2008

On Wed, Apr 9, 2008 at 3:15 AM, Jost Tobias Springenberg
<jspringe at> wrote:
> message broken...
> dbm
> dbm
>  dmesg lists nothing special exept for the timeouts...
>  ping
>  gives 3 times normal response with 40 ms
>  then a timeout and ~4000ms responses followed by various timeouts.
>  If someone could give a brief sketch of how to debug the module I also would not
>  fear doing it myself :).

Device timeout probably means TX desc is not correctly setup, but it
may be caused by misconfiguring some TX related registers.  You could
take a look at an_start(), an_intr() and an_txeof().  BTW, NetBSD
seems to have done quite a good job on an(4).

Best Regards,

Live Free or Die

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