Re: [lwip-users] tcp_tmr goes into infinite loop with tcp_active_pcbs

[Kieran Mansley]

On 28 Jan 2012, at 19:15, Sylvain Bernard wrote:

> I've seen a couple old posts on a similar issue but no mentions on a possible 
> cause/resolution.  Any idea?
>  
> note: the lwip stack is running in a single-threaded environment (no OS)

The normal reason for this is that there are two threads running concurrently 
in the lwIP core, which causes one of the lists to become corrupted.  But in 
your case this seems unlikely as you only have one thread, unless you have 
interrupts calling directly into lwIP rather than queuing packets for your main 
thread to handle.

Kieran