On Thu, 20 May 1999, Peter Wemm wrote:

> Tommy Hallgren wrote:
> > Hi!
> > 
> > I'm reading http://www.BSDI.COM/products/internet/40-qna.mhtml#Q5 and found 
> > t
>     he
> > following peice of text:
> > 
> > "Lazy SPLs - The kernel no longer masks hardware events unless a hardware 
> > eve
>     nt
> > actually occurs, avoiding many expensive operations."
> > 
> > Does anyone know what this is?
> 
> Exactly what it says..  We've been doing it for as long as I can remember,
> at least as far back as 2.0.5, probably as far back as 1.x.

My earliest memory of it was as "Bruce's new interrupt code" for 386bsd.
It was part of the 386bsd patchkit I think.

--
Doug Rabson                             Mail:  d...@nlsystems.com
Nonlinear Systems Ltd.                  Phone: +44 181 442 9037




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