Detangle lwkt_switch() and the idle thread and consolidate sleep variables

[Joerg Sonnenberger]

On Sun, Sep 02, 2007 at 04:51:31PM +0200, Simon 'corecode' Schubert wrote:
> Ah, I wasn't sure how interrupts are handled;  I thought it might be a edge 
> triggered interrupt which just gets ignored then, but if interrupts are 
> queued, then this is no issue.

Even an edge interrupt would still be registered with the PIC/APIC. You
*can* lose an interrupt if a second edge interrupts occurs before the
interrupt is acked. That's all.

Joerg