Article View: comp.sys.amiga.tech
Article #4848Re: Memory Protection!
From: Christopher A. Wichura
Date: Sun, 12 Aug 1990 10:15
Date: Sun, 12 Aug 1990 10:15
26 lines
1882 bytes
1882 bytes
In article <13756@cbmvax.commodore.com> valentin@cbmvax.commodore.com (Valentin Pepelea) writes:
>Another problem is that even if you provide the possiblity for new applications
>to run protected within the environment, the fact that older programs cann still
>jog around the address space and wreak havoc, defeats the initial purpose.
>Either you provide memory protection to everybody simultaneoulsy, or you
>don't at all.
This I don't understand. If an old program goes and stomps on memory
protected by a program using some new OS call, shouldn't an exception be
generated which the rexception handler would pick up? Thus you get a
software failure requester and no `real' harm is done. Given that if the
memory wasn't protected you could easily end up with the stomped on program
getting very confused and crashing the system, I would rather have the
software failure requester...
-=> CAW
/////////////////////////////////////\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
Christopher A. Wichura
caw@miroc.chi.il.us (my amiga)
u12401@uicvm.uic.edu (my school account)
Please! Do not send mail to my school account unless mail to miroc bounces.
I often do not check uicvm.uic.edu for periods in excess of a week.
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\//////////////////////////////////////
Technical Details
Message-ID:
<caw.2371@miroc.Chi.IL.US>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!cs.utexas.edu!swrinde!ucsd!pacbell.com!pacbell!att!mcdchg!laidbak!obdient!igloo!miroc!cawReferences:
<1145.26bd4989@waikato.ac.nz> <13693@cbmvax.commodore.com> <hclausen.2309@adspdk.CBMNET> <13756@cbmvax.commodore.com>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!cs.utexas.edu!swrinde!ucsd!pacbell.com!pacbell!att!mcdchg!laidbak!obdient!igloo!miroc!caw From: caw@miroc.Chi.IL.US (Christopher A. Wichura) Newsgroups: comp.sys.amiga.tech Subject: Re: Memory Protection! Message-ID: <caw.2371@miroc.Chi.IL.US> Date: 12 Aug 90 10:15:59 GMT References: <1145.26bd4989@waikato.ac.nz> <13693@cbmvax.commodore.com> <hclausen.2309@adspdk.CBMNET> <13756@cbmvax.commodore.com> Lines: 26