Steven M. Bellovin said:

>Mainframes have had similar facilities for decades, settable by the
>operators at run-time.  In fact, they've had it for so long it may be
>meaningless as a precedent, because memory technology has changed so
>much.  I *think* the feature goes back to the days of real core
>storage...

And SunOS 4.x would lock out blocks of memory if it got a parity
error. 
-- 
Rick Kelly	rmk@rmkhome.com
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