Hi, I am trying to understand the linux 2.4.x code relating to sk_buff's. when a sk_buff is in the receive queue of a socket are all fields of the sk_buff such as cb[48] and other fields contiguous ?? and are all the headers and data in contiguos area of memory ?? what is the significance of the tail room in skb , what does it hold ?? thanks a lot Amit --- - Amit http://amitshah.nav.to/ amitshah@gmx.net -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/