Kernel Korner - Kprobes—a Kernel Debugger

Looking for a way to use some of the same debugging techniques in the kernel that you apply in user-space code? Here's how to bring debugging support to tricky kernel development problems.

The Kprobes patch helps a kernel developer debug any address within the kernel. Various patches are available from the Kprobes home page, including ones for setting watch points and for debugging user address locations. With proper use, Kprobes can become a powerful weapon in any kernel developer's arsenal.


I am thankful to Richard J Moore and Andrew Morton for their valuable comments on the draft version of this article, to Manish P Fadnavis for his support and to Pramode C E, Shine Mohammed Jabbar and Chitkala Sethuraman for their feedback.

Resources for this article: /article/8136.

R. Krishnakumar loves to hack the Linux kernel. He works for Hewlett-Packard and received a bachelor's in Technology from Govt. Engg. College Thrissur. His home page is located at You can reach him at



Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

Thank you Krishnakumar

Anonymous's picture

This is a very clear article about non-intrusive debug. This article enlighten me a lot and this is starting point for my current project (building a hot-patching framework)

One Click, Universal Protection: Implementing Centralized Security Policies on Linux Systems

As Linux continues to play an ever increasing role in corporate data centers and institutions, ensuring the integrity and protection of these systems must be a priority. With 60% of the world's websites and an increasing share of organization's mission-critical workloads running on Linux, failing to stop malware and other advanced threats on Linux can increasingly impact an organization's reputation and bottom line.

Learn More

Sponsored by Bit9

Linux Backup and Recovery Webinar

Most companies incorporate backup procedures for critical data, which can be restored quickly if a loss occurs. However, fewer companies are prepared for catastrophic system failures, in which they lose all data, the entire operating system, applications, settings, patches and more, reducing their system(s) to “bare metal.” After all, before data can be restored to a system, there must be a system to restore it to.

In this one hour webinar, learn how to enhance your existing backup strategies for better disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible bare-metal recovery solution for UNIX and Linux systems.

Learn More

Sponsored by Storix