On Fri, Feb 18, 2011 at 7:12 PM, Simon Goldschmidt
<address@hidden> wrote:
> I have found that by putting a breakpoint in the etharp_input function,
> that
> the PC will get an ARP reply, so it looks like some weid
> timing of buffering issue maybe ..
That rather looks like a cache issue. Do you have a DMA-enabled MAC? If so, did you correctly invalidate the cache lines for the addresses to/from which you received/send data (usually the memory pointed to by p->payload)?
Simon
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