What do you mean by u-area (user area) or u-block in unix?

Question

Hello
What do you mean by u-area (user area) or u-block in unix?
please reply me. i am waiting for your reply.
Thanx

Answer 1

This contains the private data that is manipulated only by the Kernel. This is local to the Process, i.e. each process is allocated a u-area.