In the discussion of ULTs versus KLTs, it was pointed out that a disadvantage of ULTs...
In the discussion of ULTs versus KLTs, it was pointed out that a disadvantage of ULTs is that when a ULT executes a system call, not only is that thread blocked, but also all of the threads within the process are blocked. Why is that so?
Homework Answers
Yes, We have observed in the discussion of ULTs versus KLTs, that it was pointed out that a disadvantage of ULTs is that when a ULT executes a system call, not only is that thread blocked, but also all of the threads within the process are blocked.
Because
The user process functions separately from Kernel
processes.
It is a kind of thread structure process, So it is not visible to
the OS/kernel, which schedules on the basis of processes.
Here According to me the book says that:
" The kernel continues to schedule the process as a unit and assigns a single execution state like the thread will be in (Ready, Running, Blocked, etc.) to that process "
If unfortunately one thread is blocked, then the whole process is going to get blocked and parallely all threads in that process are going to get blocked.
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