[lwip-users] Re: lwip-users Digest, Vol 67, Issue 13

[Chen]

Just read Simon's comment,
PBUF_POOL_SIZE is for rx only
(not tx as suggested by Kieran). 

My guess is by making PBUF_POOL_SIZE  60, with
PBUF_POOL_BUFSIZE at 500, we are allocating 30000 bytes for rx, plus the
tx buffer of 30000, we may have some memory issue (instead of lwip bug)
here

When I lower PBUF_POOL_BUFSIZE to 300 (keeping PBUF_POOL_SIZE at 60), or
lower PBUF_POOL_SIZE to 40 (keeping PBUF_POOL_BUFSIZE at 500), telnet
will work

>>>>>>>>>>>>>
Where/How do I file a bug report?

BTW, the following looks like a bug to me, too

I use the socket programming approach from here, copying the sample codes
"AS IS"
http://ultimaserial.com/avr_lwip_tcp.html

Everything works fine

Then I change the following in lwipopts.h
#define
TCP_SND_BUF            
30000 (default was 2150)
#define
PBUF_POOL_SIZE          60
(default was 6)

telnet will not connect anymore!

Thanks,


> OK. That sounds like a well defined
> bug that we should investigate.
> Could you file a bug on savannah, hopefully including a detailed
> description of how to reproduce the problem?
>
> Thanks
>
> Kieran