In the code below, three processes are competing for six resources labeled A to F. a. Using
Question:
In the code below, three processes are competing for six resources labeled A to F.
a. Using a resource allocation graph, show the possibility of a deadlock in this implementation.
b. Modify the order of some of the get requests to prevent the possibility of any deadlock. You cannot move requests across procedures, only change the order inside each procedure. Use a resource allocation graph to justify your answer.
Transcribed Image Text:
void P0 () void P1 () void P2 () while (true) while (true) ( while (true) get (A) get (B) get (C) // critical region: // use A, B, C release (A) release (B) release (C); get (D) get (E) get (B) // critical region: // use D, E, B release (D) release (E) release (B) get (C) get (F)i get (D) // critical region: // use C, F, D release (C); release (F) release (D)
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a There is a deadlock if the scheduler goes for example P0P1P2P0P1P2 line by line Each of the 6 reso...View the full answer
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Related Book For
Operating Systems Internals and Design Principles
ISBN: 978-0133805918
8th edition
Authors: William Stallings
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