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Re: pentium bug
- To: Joshua Weage <gte855f at prism dot gatech dot edu>
- Subject: Re: pentium bug
- From: Alex <garbanzo at hooked dot net>
- Date: Sat, 8 Nov 1997 20:32:27 -0800 (PST)
- cc: root <root at jacob dot remcomp dot fr>, gnu-win32 at cygnus dot com
On Sat, 8 Nov 1997, Joshua Weage wrote:
> > This means that anybody can crash anytime any OS that runs under a
> Pentium CPU.
> > As the poster said, no special permissions are needed, the pentium runs
> under
> > ring 3 permissions!!!! user space
> >
> > This means that no secure system can ever be built that uses the pentium
> CPU. No
> > protected system. The OS receives NO TRAP!!!
>
> So what is the problem with a hard reboot? Your system will not be
> insecure, it will just crash. The same thing can be done to a sun
> workstation, not quite as quick, but it is possible to force a hard reboot
> with no other available options to get the system back up.
With filesystems other than FAT{16|32}, this can lead to data loss due to
filesystem corruption, which is a problem. On any system this can lead to
loss of whatever data is in ram, before your system crashes, on a server
like system this can also force costly downtime.
- alex
-
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