Kernel Internals Essentials – Processes and Threads

With the previous chapter, you’re now in a good position to understand and write simple kernel modules. In this chapter, we begin our exploration of Linux kernel internals, a vast and complex topic. In this book, we do not intend to delve very deep into the details of kernel and memory internals. At the same time, I would like to provide sufficient and requisite background knowledge for a budding kernel module author or device driver developer like you to successfully tackle the key topics necessary to understand kernel architecture in terms of how processes, threads, and their stacks are managed. Armed with this knowledge, you’ll be able to better understand the coming chapters on correctly and efficiently managing dynamic kernel memory. As a side benefit, you will find yourself becoming more proficient at debugging both user and kernel space code.

I have divided the discussion on essential kernel internals...