Path: utzoo!attcan!uunet!samsung!zaphod.mps.ohio-state.edu!tut.cis.ohio-state.edu!cica!iuvax!hess
From: hess@iuvax.cs.indiana.edu (Caleb Hess)
Newsgroups: comp.sys.next
Subject: Re: NeXT and Real-Time
Summary: Loadable Kernel Servers
Keywords: real time music mach ualarm paging operating system
Message-ID: <37704@iuvax.cs.indiana.edu>
Date: 2 Mar 90 16:14:37 GMT
References: <8196@pt.cs.cmu.edu>
Reply-To: hess@iuvax.cs.indiana.edu (Caleb Hess)
Distribution: na
Organization: Indiana University, Bloomington
Lines: 4

NeXT has provided a way to get around at least some of the real-time
problems of Mach.  A Loadable Kernel Server can be installed with an
option that keeps it from being paged, which is what you need for an
interrupt handler.  In fact, this is what the midi server does.