After a long time I am back in ilug-cal circle. If I make any mistake in posting please correct me: Regarding the question of address of variables it is correct that the system shows Virtual Address. To understand why the two variables in parent and child have the same address, you have to picture the stack frame and address space of a process. Both parent and child has similar 2GB layout with similar address for the first stack frame. When the Child is in control, its address tables will map to the real address stack for the child, while the same virtual address for the parent will translate to its own real address that is different from the child. So while every process have same initial stackframe address the real address for each will be different. Hope that clarifies. Cheers JPM (Mathew)
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