Understanding Windows memory-acquisition issues
In the previous chapter, we covered the general concepts of memory dumping in detail and discussed possible issues. However, each operating system has its particular peculiarities. The main peculiarity related to memory extraction in Windows is the access to random-access memory (RAM), but first things first.
Remember that earlier, we talked about device memory, which is the area of physical memory that is reserved for devices? Such devices include video cards, audio cards, Peripheral Component Interconnect (PCI) cards, and so on. Their direct access to the physical memory is vital for their qualitative and effective operation. And do you remember what trying to access device memory can lead to? That's right—it can lead to unpredictable consequences.
The thing is, attempts to access or write to device memory are translated into requests sent to the corresponding device. However, different devices may react differently...
