Re: [lwip-users] PPP new Stack

[Sylvain Rochet]

Hi Nikolas,

On Mon, Feb 18, 2013 at 11:52:02PM +1100, Nikolas Karakotas wrote:
> Hello Sylvain,
> 
> I have been using latest ppp-new commit from git and also lwip but im 
> experiencing a problem ONLY when I close the ppp connection. When the ppp 
> thread is left open (running always) everything is OK. Let me explain to you 
> what happens:
> 
> I initiate a connection and once the link is up I send my data.
> I then close the connection and use ppp_delete().
> After around 5 tries it seems that I get an LCP timeout. This occurs because 
> I don't have any pbuf available.
> It seems that there might be a memory leak when closing the connection and 
> deleting ppp?
> 
> I have attached serial output.

Humm, what about the ptr value of ppp_pcb->rx->in_head and 
ppp_pcb->rx->in_tail in this case ?

I guess we might need to call ppp_free_current_input_packet() before 
releasing the ppp pcb in ppp_delete(), and will do because this is 
totally harmless, but this will be better if the memory leak issue is 
solved with facts :-)

Sylvain

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