[lwip-users] pbuf chain and packet queue

[Bernhard 'Gustl' Bauer]

Hi,

my pbufs are large enough to contain a complete packet, so pbuf chains 
should not occur. While hunting an error I discovered a pbuf with these 
settings:
pbuf->next    !=NULL
pbuf->len     = 568
pbuf->tot_len = 4948

My TCP_MSS is 1460. So 4948 = 3 * TCP_MSS + 568

Is this a pbuf chain, or a packet queue?

The description in pbuf.c indicates the first. But in the pcap file that 
is attached I have identified them as no. 196, 75, 77, and 79. So it 
must be a packet queue, mustn't ist? But then the description in pbuf.c 
is wrong.

Could someone please enlighten me.

Gustl

debug_27_01.pcap
Description: Binary data