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Re: [lwip-users] Re: ARP not working

From: Simon Goldschmidt
Subject: Re: [lwip-users] Re: ARP not working
Date: Fri, 18 Feb 2011 07:12:51 +0100

Bernard Mentink <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)?

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