Threads

[Bhosle, Mayur N]

Hi Everyone,
             I had few doubts regarding the following things. 
1. Is it correct that a process can have multiple LWPs and for each LWP
   there is a LWKT created?
2. The function crit_enter is called so that preemption is disabled, but
   it says synchronous switching and blocking, what does this mean?
3. Can anyone suggest some documentation regarding, when to use MPLOCK?

             Thanks and looking forward for the reply.
Mayur