Re: [lwip-users] p->payload == iphdr failed...

[Jonathan Larmour]

Ed Sutter wrote:
>>
>> What frees ipacket's memory? Is there any chance that memory can be
>> reused
>> before the pbuf is freed?
>>
>> You may also need to consider the alignment of ipacket.
> 
> Jonathan,
> Thanks for the response.  The underlying driver releases the buffer.
> This is coordinated with details outside the scope of this problem.
> It is the same packet buffer used in the working method that uses
> PBUF_POOL for allocation.

Ah I see in the implementation of pbuf_header, that it can't expand
PBUF_REFs to the front. That will be your problem.

I think the only reason it doesn't do it is because there's no way to
sanity check that it's a valid thing to do.

Jifl
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