Re: when or where can the case occur in "linux kernel development" about "kernel preemption"?

[Christopher Friesen]

Sat. wrote:
> the case about kernel preemption as follow :
>
> the book said "when a process that has a higher priority than the
> currenty running process is awakened ".
>
> but I can think about when such case can occur , could you give me an example ?

There may be others, but one common case is when a hardware interrupt 
causes the higher priority process to become runnable.  Some examples of 
this would be a network packet arriving, or the expiry of a hardware timer.

Chris
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