Re: Why can the kernel be stuck by a busy kernel thread ?

On Fri, Oct 14, 2011 at 5:04 PM, Parmenides <mobile.parmenides@gmail.com> wrote:

Hi,

  I code a kernel module which do some nop. When inserted into the kernel, the kernel will be stuck and can not reponse my keypress anymore. So, I have to reboot to get out. Why?

Is kernel preemption activated? Could you check for # grep CONFIG_PREEMPT .config? thanks, Daniel.