Dear All! I am using printk() for debugging purpose. I am using printk() in sched.c but i did n't see any information. I have n't use printk() before. I am using printk() in following manner:-- #include <linux/kernel.h> printk(KERN_ALERT "Hello world\n"); please tell me where should i look for output from printk(). I was thinking that i should get into the console when i will use "make bzImage" to compile modified sched.c . I have also looked in /etc/sysconfig/syslog but i did n't get any information there. waiting for your reply! Abhijit