Linux Kernel Debugging: Leverage proven tools and advanced techniques to effectively debug Linux kernels and kernel modules

• Fully understand how to use a variety of kernel and module debugging tools and techniques using examples
• Learn to expertly interpret a kernel Oops and identify underlying defect(s)
• Use easy-to-look up tables and clear explanations of kernel-level defects to make this complex topic easy

• Explore instrumentation-based printk along with the powerful dynamic debug framework
• Use static and dynamic Kprobes to trap into kernel/module functions
• Catch kernel memory defects with KASAN, UBSAN, SLUB debug, and kmemleak
• Interpret an Oops in depth and precisely identify it s source location
• Understand data races and use KCSAN to catch evasive concurrency defects
• Leverage Ftrace and trace-cmd to trace the kernel flow in great detail
• Write a custom kernel panic handler and detect kernel lockups and hangs
• Use KGDB to single-step and debug kernel/module source code

This book is for Linux kernel developers, module/driver authors, and testers interested in debugging and enhancing their Linux systems at the level of the kernel. System administrators who want to understand and debug the internal infrastructure of their Linux kernels will also find this book useful. A good grasp on C programming and the Linux command line is necessary. Some experience with kernel (module) development will help you follow along.