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Re[4]: general protection: 4f00
Shlomi Fish <shlomif@vipe.technion.ac.il> wrote:
> On Thu, 20 Aug 1998, Evgeny Stambulchik wrote:
>
> > Shlomi Fish <shlomif@vipe.technion.ac.il> wrote:
> >
> > > On Thu, 20 Aug 1998, Constantin Eizner wrote:
> > >
> > > > >From time ti time I get the following message and computer stop
> > > > responding.
> > >
> > > This is one of two things:
> > > 1. a buffer overflow or something like that in squid, that had a deadly
> > > effect.
> >
> > Are we talking about Windows or a real OS?! How can a buggy program make a
> > bug-free kernel (running on a stable hardware) crash?!
> >
>
> If the program is ran as root it can crash the system in a thousand
> different ways. (e.g: "rm -fr /").
Well, of course; there is no protection against a man with a hammer as well. But
you wrote "a buffer overflow or something like that in squid"; I don't think you
really believe that the binary of the squid was trojan in this case.
> Besides, every OS can have fatal buffer
> overflows, including Linux. At least on an i386.
Which should be treated as a bug in the OS.
> Maybe VMS or MVS or other real-time or mainframe OSes do something to
> ensure this thing cannot happen. I'm not sure that Pentium processors
> offer enough functionality to prevent this, or that Linux is designed with
> this in mind.
>
> And then again: who said the Linux kernel (or the i386 hardware for that
> matter) is bug-free.
Nobody did. Neither did I intend to state this. All what I wanted to say was: if
an application makes an OS crash, than there is a bug in the OS (which doesn't
mean the application is bug-free).
Regards,
Evgeny
--
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/ Evgeny Stambulchik <fnevgeny@plasma-gate.weizmann.ac.il> \
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