Login or Register to Ask a Question and Join Our Community


Programming

Debugging Linux Kernel Modules

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Programming Debugging Linux Kernel Modules
# 1  
Old 02-12-2012
Debugging Linux Kernel Modules
I am aware of debugging linux applications using gdb and ddd.
Now I have written a simple kernel module having init_module, exit _module and some functions for tasklets and workqueues.
I want to debug these kernel modules like I used to debug applications setting breakpoints etc.
How can I debug linux kernel modules?
How to attach gdb to the modules and how to set breakpoints in them?
# 2  
Old 02-12-2012
You don't. kernel code runs in kernel mode where gdb and any other user-mode code debugger cannot get at it. It's just not the same.

The kernel has its own debugger, kdb, about which I unfortunately don't know much.
This User Gave Thanks to Corona688 For This Post:
rupeshkp728
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Missing Modules After Compiling Kernel

I'm a little embarrassed after all these years I've never really successfully compiled my own kernel. I used this guide to make the following files: linux-headers-5.1.9_5.1.9-1_amd64.deb linux-image-5.1.9_5.1.9-1_amd64.deb linux-libc-dev_5.1.9-1_amd64.deb When I first booted into this... (4 Replies)
Discussion started by: Azrael
4 Replies

2. Linux

Disable loading kernel modules

Hi, I am running CentOS 6.5 and I want to remove auto loading 8021q and garp modules, but there are no configure files in /etc/modprobe.d define bot modules. I even added both module names to /etc/modprobe.d/blacklist.conf, both of them are still loaded after the reboot. How can I disable... (2 Replies)
Discussion started by: hce
2 Replies

3. Hardware

Linux Kernel Modules

Hey everyone. I have a question, doing an lsmod gives me a list of all the loaded modules for my system. But how did they know to load? my /etc/modules files is empty, so how did these modules know to load themselves on boot time? If I were to take this hard drive to another computer with a... (6 Replies)
Discussion started by: Lost in Cyberia
6 Replies

4. UNIX for Advanced & Expert Users

Kernel Module Debugging

Question may seem illogical but I still need clarification. Can we debug kernel modules loaded on my target system using kdb / kgdb without using any other system or remote debugging? In other words my question is can we use kdb/kgdb to debug kernel modules running on same system? (2 Replies)
Discussion started by: rupeshkp728
2 Replies

5. UNIX for Dummies Questions & Answers

Linux kernel modules makefiles doubts

This query is regarding the makefiles of linux kernel modules. I saw at some sites on net it is suggesting to include the following path: KERNEL_SOURCE := /usr/src/linux... while at some places it is askibg to include /lib/modules path: KERNEL_SOURCE := /lib/modules/2.6.27-7-generic/build... (0 Replies)
Discussion started by: rupeshkp728
0 Replies

6. Emergency UNIX and Linux Support

Linux: passing parameters to kernel modules

Hi, I need to set qlogic qla2xxx parameters in /etc/modprobe.conf (Oracle Linux Server release 5.7, almost equal to RedHat 5.7) two questions: how can I pass this parameters to the module while it is loaded (fibre channel luns are in use), if possible at all and how can I check the... (3 Replies)
Discussion started by: funksen
3 Replies

7. UNIX for Advanced & Expert Users

Kernel Modules Not geting built

I installed in VM the Mandriva Linux with 2.6.27 kernel. But presently when I fire make the modules .ko does not get built. I get the following output on firing command in the kernel module folder. $ make Building first_driver.c ... make: Entering directory... (1 Reply)
Discussion started by: rupeshkp728
1 Replies

8. HP-UX

Information about kernel modules

Hi all, what do kernel modules libaudit, klog and strlog do? Specifically I want to determine if it was possible for us to determine if kernel level auditing is enabled at all? regards (0 Replies)
Discussion started by: slash_blog
0 Replies

9. SuSE

How do I load kernel modules so BestCrypt will work

I'm using SuSE 9.2 Pro and trying to use a program call BestCrypt. I get it installed and type bctool and it says "Kernel modules not loaded". If you need to know anymore about it you can find it at http://www.jetico.com/linux/bcrypt-help/index.htm linux:/home/chris/Desktop/Xtheater-0.9.2 #... (6 Replies)
Discussion started by: CTroxtell21
6 Replies
Login or Register to Ask a Question