RE: Tagged memory (was Re: Memory Upgrade)

Excuse me my stupidity, but I really do not see the point ???
On any system (iSeries, Windows, Unix, name your own choice) once you know
which system module performs, say authority checking, one can patch the
module to always pass the authority check - and voila! - system will allow
everything to everybody. So from this point of view no system in the world
is protected.
Of course, if instructions to do this are lying around and you can do the
patching work without authority, then it's trouble ...

    Alexei Pytel





                    "Hall, Philip"
                    <phall@spss.com>          To:     midrange-l@midrange.com
                    Sent by:                  cc:
                    midrange-l-admin@mi       Subject:     RE: Tagged memory 
(was Re: Memory
                    drange.com                 Upgrade)


                    09/28/2001 09:34 AM
                    Please respond to
                    midrange-l





Dave,

> My understanding of Leif's argument is that it is possible to disable the
> code that detects that the tag is off. I have no idea whether he's right
or
> wrong.

He's right. If you locate the SLIC module that performs this (again, as
others have stated, it's all documented in Leif's book
[www.iseries400.org])
make the change, the processor & disks go active for a few minutes and then
the system runs 'unprotected...'

--phil

[ Deleted uuencoded file 'winmail.dat' ]
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