What does a pbuf chain look like after it comes back from low_level_input? Bill
>-----Original Message----- >From: [email protected] >[mailto:[email protected]] On >Behalf Of Bernhard 'Gustl' Bauer >Sent: Wednesday, January 27, 2010 8:27 AM >To: Mailing list for lwIP users >Subject: [lwip-users] pbuf chain and packet queue > >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 > > > > _______________________________________________ lwip-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/lwip-users
