Re: [lwip-users] ignored packets?

[Domen Puncer]

Replying to myself, because I don't think this is a lwip problem.
Receive counter lwip_stats.link also suggests the packet is missing,
so the problem is very likely in driver.

Anyone has a nice lpc23xx emac source? ;-)


Thank you for getting me unstuck after a couple of days!
And sorry for the noise!


        Domen


On 02/04/09 14:54 +0200, Domen Puncer wrote:
> On 02/04/09 11:17 +0100, Kieran Mansley wrote:
> > On Thu, 2009-04-02 at 12:09 +0200, Domen Puncer wrote:
> > > Wireshark shows the packets are being sent to lwIP, but all
> > > of the sudden, it just "forgets to reply with ack"? Other connections
> > > still work.
> > 
> > Is the data that isn't acked delivered to the application?  I.e. is it
> > just the ack that goes missing, or the data as well?
> 
> Right, data is also missing.
> 
> > 
> > > It would make sense if packets were dropped, but it doesn't look so from
> > > lwip_stats (see end of message).
> > 
> > Is there any path in your driver that could result in dropped packets?
> > That would be my first guess.
> 
> On first look, no. But it uses polling, and then probably drops packets
> when many arrive at "the same time". Then I'd expect the large payload
> transfers to fail.
> 
> Guess I should play with that.
> 
> > 
> > Kieran
> > 
> > 
> > 
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> > http://lists.nongnu.org/mailman/listinfo/lwip-users
> 
> 
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