For all you concerned citizens, see http://olstrans.sourceforge.net/release/OLS2000-apm/OLS2000-apm.html at a little before half-way through. There's a basic explanation of kapmd and the idle loop, and the "sham" CPU usage. It's a nice transcript discussing power management in the Linux kernel.
 
A little curiosity is a dangerous thing...
 
 
 
Regards,
Gio

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