Understanding kernel architecture – part 1

In this section, we begin to deepen our understanding of the kernel. More specifically, here we delve into what user and kernel spaces are and the major subsystems and various components that make up the Linux kernel. This information is dealt with at a higher level of abstraction for now and is deliberately kept brief. We shall delve a lot deeper into understanding the fabric of the kernel in Chapter 6, Kernel Internals Essentials - Processes and Threads.