Difference between paged pool and nonpaged pool memory

Windows divides the kernel mode address space into paged and nonpaged memory pools. The paged memory can be swapped out and nonpaged memory is never swapped out.

Device drivers are usually not paged. For example, interrupt routine must be in nonpaged memory because interrupt can occur anytime. Paged pool can be allocated and accessed at IRQL < DISPATCH_LEVEL.

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July 14, 2011 - Posted by Mukesh Chauhan | Uncategorized | memory, windows

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