My kernel hangs

[veda87]

I am running ubuntu-9.10 through virtualbox. I am looking to comiple a new kernel with my own system call.

I first downloaded my new kernel linux-2.6.32.7, untar it and it was ready.

I added my own system call named helloworld. i used this link to create and add the system call to a kernel:http://macboypro.wordpress.com/2009/05/15/adding-a-custom-system-call-to-the-linux-os/

Then I followed this link http://www.howtoforge.com/kernel_compilation_ubuntu_p2 to install the kernel.

Then finally after several hours, my kernel was ready. I now booted the system through this kernel but it hangs, I don't know what is happening...

Can anyone tell me where exactly I am going wrong...

Thanks in advance.