Date: Fri, 16 Jul 1999 09:45:47 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: David Brownlee <abs@anim.dreamworks.com> Cc: Sean Witham <sean.witham@asa.co.uk>, "Daniel C. Sobral" <dcs@newsguy.com>, Garance A Drosihn <drosih@rpi.edu>, freebsd-hackers@FreeBSD.ORG, tech-userlevel@netbsd.org Subject: Re: Swap overcommit (was Re: Replacement for grep(1) (part 2)) Message-ID: <199907161645.JAA20156@apollo.backplane.com> References: <Pine.GSO.4.05.9907160919410.25053-100000@cynic.anim.dreamworks.com>
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: Well, NetBSD is slated to be used in the 'Space Acceleration
: Measurement System II', measuring the microgravity environment on
: the International Space Station using a distributed system based
: on several NetBSD/i386 boxes.
:
: Sometimes your 'what-if' senarios are others' standard operating
: procedures.
:
: David/absolute
:
: What _is_, what _should be_, and what _could be_ are all distinct.
Ummm... this doesn't sound like a critical system to me. It sounds like
an experiment.
None of the BSD's (nor NT, nor any other complex general purpose operating
system) are certified for critical systems in space. The reason is
simple: None of these operating systems can deal with memory faults
caused by radiation. You might see it for internal communications or
non-critical sensing, but you aren't going to see it for external
communications or thruster control.
-Matt
Matthew Dillon
<dillon@backplane.com>
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