RE: [lwip-users] pbuf misuse or snd_queuelen corruption.

[Andrew Foster]

Kieran,

Thanks. Moving the ARP handler to the tcpip_thread would reduce the risk 
of concurrent access to the pbuf list. However, I still have an 
allocation on reception of data and a free when receiving unsupported 
packet types (!IP or !ARP). These would still happen from context of the 
low level input and not the tcpip_thread. Should this be restructured as 
well? 

Thanks,

Andrew Foster
Firmware Engineer
Attero Tech, LLC.


-----Original Message-----
From: Kieran Mansley [mailto:address@hidden 
Sent: Monday, October 18, 2010 11:30
To: Mailing list for lwIP users
Subject: RE: [lwip-users] pbuf misuse or snd_queuelen corruption.

I would try avoiding calling the etharp receive handlers directly and
instead pass the packets to the tcpip_thread.  It will call
ethernet_input() for received ARP packets.  See the tcpip_thread()
function in src/api/tcpip.c

Kieran


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