On Wed, Dec 19, 2012 at 04:05:57PM +0800, lx wrote:

hi:
  How to choice the Open source project about kernel?
I'm a new one, and I want to practice the technology about kernel.
Please list some simple projects, thank you

Read, understand.  Test, find a bug, and try to fix it.

There's also several websites (and a few books) that are dedicated to
Linux kernel programming out there, such as http://crashcourse.ca/.

HTH,
Jonathan Neusch?fer