Answered: A disadvantage of ULTs is that when a…

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?

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter11: Operating Systems

Section: Chapter Questions

Problem 7RQ

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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?

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This question is from Operating Systems. I just need clarification on a question the book didn't throughouly the concept. I tried reading the book and I can really only find one reason for the ULTs. Questions: 1) If a process exits and there are still of that process running, will they continue to run? 2) When a User-level-thread (ULT) executes a system call, why is that thread blocked, but also all the other threads within the process are blocked?