Explanation:
Sure, here's a simple resource allocation graph that demonstrates a deadlock scenario between the processes P1, P2, and P3:
R1 (1)
/
P1 /
/
/
/
/
R2 (2) --- P2
\
\
\
\
\
\
\
P3
In this scenario:
- P1 holds R1 and requests R2.
- P2 holds R2 and requests R1.
- P3 requests both R1 and R2.
This creates a circular wait condition, leading to a deadlock, where none of the processes can proceed because they are all waiting for resources held by each other.