[syslinux] CPU usage while at syslinux boot prompt

[Geert Stappers]

Op 20081117 om 08:21 schreef H. Peter Anvin:
> Dag Wieers wrote:
> > I was wondering if this was known behaviour ? And if it is something that 
> > we can fix ?
> 
> This is known behaviour, and there isn't really anything we can do about
> it.  The *only* device that we have to talk to that we can guarantee
> getting an interrupt for is the keyboard, the rest of the devices *have*
> to be handled by polling, via an idle loop.
> 
> Vmware broke the PXE spec trying to "fix" this, and all they did was
> cause massive trouble elsewhere.
> 
> I guess I might put a HLT in *as an option* (because people *will*
> complain that the serial port loses characters), but perhaps a better
> thing would be to not start the VM until you actually need it...
> 
> 	-hpa
> 
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