Subject: Re: smp status -- more details..
To: Paolo Losi <>
From: Jason R Thorpe <>
List: tech-smp
Date: 08/22/2000 08:46:06
On Tue, Aug 22, 2000 at 11:55:50AM +0200, Paolo Losi wrote:

 > What happens in the uniprocessor case if, during  that time window,
 > you get an interrupt that fills the queue?
 > I think you cannot protect the queue raising IPL because 
 > in that case you're going to sleep with interrupts disabled.

Going to sleep with interrupt disabled works just fine ... the current
interrupt priority level is part of the process state, and so when you
switch to another process, you switch to a different priority level.

        -- Jason R. Thorpe <>