Understanding Kernel Threads in Linux Kernel threads are a fundamental part of the Linux operating system, enabling the kernel to perform background operations efficiently. Unlike user-space processes, kernel threads are…

The Process Family Tree Process Hierarchy All Linux processes originate from the init process (PID 1), which is started by the kernel during boot. Parent-Child Relationships Each process has exactly…

Understanding how Linux manages processes and execution contexts is essential for any systems programmer or curious engineer. In this post, we'll break down the core concepts, with clear tables and…

Introduction Character devices are one of the fundamental types of devices in a Linux system. Unlike block devices, which deal with large chunks of data (such as hard drives), character…