[lwip-users] Re: [lwip] Memory leak and queued packets in etharp.c

[Jani Monoses]

> Another issue is the queueing of packets that
> are created by the user code with netbuf_ref().
> This creates a chained pbuf with at least one
> one element having the attribute PBUF_ROM.
> There's a pending danger that the data part
> of such a buffer gets overwritten by the
> application before the queued packet is sent.
> Should these be copied?

The application must only overwrite that area when it's 
certain that it got sent.How it is to be notified I don't know.
But the point of PBUF_ROM is to tell the stack not to copy so
I think it shouldn't.

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