[mdlug-discuss] [mdlug] [Fwd: [opensuse-offtopic] AndnowtheManchurianmicrochip]

Ingles, Raymond Raymond.Ingles at compuware.com
Wed Feb 4 13:21:34 EST 2009


> From: Aaron Kulkis
> >  Precisely my point. Absent evidence, we have no reason to believe
the
> > 'secret proof'.
> 
> The Air Force never said there were aliens...it was some
> nut job creating hoaxes to sell his nutty books.

 I'm aware of that. 

> We're talking off-the-shelf Intel/AMD machines.

 But if there's a problem with them, more-costly options can be pursued.
If someone stands to make money from those more-costly options, you've
got your motive.

> If you put a sniffer on a network, and data is being sent
> out on that network for no reason at all, you KNOW you've
> got a problem some place.

 Evidence that this has actually happened?

> Who knows.

 I'd be a lot more inclined to believe it if I were given some data or
even an outline of a workable design. Neither has so far been
forthcoming.

>  But China has been pursuing cyber-network warfare
> for over 10 years - I first heard about that threat back in
> the mid-1990's, and at the time, I thought it to be a rather
> preposterous idea.  But then I heard about the trojaned-printer
> that was sent to Hussein's government, and the outbreak of
> viruses, and I realized that the security I had taken for
> granted on Unix and VM/CMS was far from common.

 Speaking of specific, one-shot hacks is different from widespread
subversion.

> No, you don't need to make any such avoidance at all.
> Since the machine has been penetrated since before an OS
> was even installed on it, there's no sudden, noticeable
> decrease in performance of the machine.

 *Except* that we're talking about slipping design changes in at the
fabrication level. The people who design the chips test them, and they
know - *very* precisely - what timings to expect. And they do their best
to test *everything* on the chip; they *have* to. You can't do changes
at that sort of scale without detectable deviations. Like I said before,
the designers have every reason to use every bit of silicon to boost
performance. The fabricators *can't* steal silicon without redesigning
*something*, cutting into performance margins that are already cut as
fine as the designers can get away with.

> And besides, Disk bandwidth compared to memory bandwidth
> is low... the whole reason for DMA controllers is so that
> the data can be sent in burst mode, so as to free up
> the memory bus.

 But if you're doing DMA-related work at the same time, you'll see a
major drop in performance. Dang near everything on the system uses DMA
now.

> >  Umm... no. I don't buy it.
> 
> You also buy the idea that lowering taxes improves the economy,
> and increases employment, despite a few hundred years of data
> which shows that it always works without fail.

 I do? Please cite a case where I've ever said that. Seriously - come up
with a cite or retract that.

 Generally speaking, when I see someone resort to ad hominem I conclude
that they feel they're losing the argument.

 Sincerely,

 Ray Ingles                                   (313) 227-2317

  "No federal income tax was assessed before 1913, because
  government didn't require the kind of dough it needs now
         that it's running a concierge business."
 - Bill Maher, "When You Ride Alone You Ride With bin Laden"
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