Hello, today, i ask me question. I would like to implement program to control the use of the stack when some program use it.

I have tested bad fasm program he pop infinitely the stack. But when i launch it into virtual machine, virtual machine don't crash. What is the way to control stack error ?

If your OS is using paging then you can use guard pages and reserved pages to monitor the stack growth.

It's not my question. I would like to know if processor give flag control when stack encounter an error

I'm not sure what you are asking. There aren't any flags that are related to the stack.

The only method I am aware of is to set up paging and place guard/reserved pages around the stack memory. Then trap the protection faults to see when the app accesses outside with the stack.

Yes, you have understand good

Thanks you for your suggestion, thanks you very much !

Just another question, what is the max possible size of stack ? 4 bytes ?

That stack has no specific maximum or minimum. It can be zero bytes up to the entire address space.