Re: [lwip-users] Missing Ack and TCP retransmission

[Kieran Mansley]

On 3 Jun 2012, at 22:31, Jaws wrote:

> Hi,
> I want to add that the issue is caused to a no memory available for pbuf 
> allocation.
> Enabling PBUF_DEBUG we have seen continuosly this message after about 20 
> connection to a server: pbuf_alloc(length=1536).
> After that, the connection to wifi router through HD wifi driver went down.
> It seems some memory leak on lwip stack. Attached the log with pbuf 
> alloc-free.
> Let me know if you have any suggestion how to find where is the issue.

Given that others aren't seeing this sort of memory leak, the leak is most 
likely in your port of lwIP, your driver, or your application.

Kieran