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Suppose we have 3 processes running at the same time as shown in the following table. Each resource only has one instance.
Show a possible scenario of resource allocation that results in deadlock. Using a resource allocation graph to show the scenario.
To prevent the possibility of any deadlock, you may modify the order of getting resource requests of some process. Explain how and why. You can also use a resource allocation graph to justify your answer.
P1
P2
P3
while (1) {
get(A);
get(B);
get(C);
// critical region
// use A, B, C
release(A);
release(B);
release(C);
}
get(D);
get(E);
// use D, E, B
release(D);
release(E);
While (1) {
get(F);
// use C, F, D
release(F);
What are the advantages of Contiguous allocation? The advantages are a. Supports direct access b. Supports sequential access c. Number of disk seeks is minimal.
Explain the TlsGetValue (TLSindex) Function Executing this function will return the thread local storage data associated with this thread. The pointer returned will be the one
Q. Under what conditions do page faults occur? Explain the actions taken by the operating system when a page fault occurs. Answer: A page fault take places when an access to
Q. The wait() statement in every Java program examples was part of a while loop. Describe why you would always need to use a while statement when using wait() and why you would ne
8(5-3)-20=
how it is work.
Question: (a) Describe blocking and non-blocking types of inter-process communication. What is easier to implement and why? Discuss their relative advantages and disadvantage
Suppose your process starts up, and allocates some memory with malloc(). The allocator will then give part of a memory page to your process. The OS then updates the corresponding p
Define a program in execution is known as A program in execution is known as a process
whta is an operating system ? what sorts services are provided by an operating system ?
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