Re: The disappearing sys_call_table export.

H. Peter Anvin
2003-05-14T20:55:23Z

Followup to: <MDEHLPKNGKAHNMBLJOLKEEFFCOAA.davids@webmaster.com>
By author: "David Schwartz" <davids@webmaster.com>
In newsgroup: linux.dev.kernel
>
> I pointed out to them that any software mechanism I devised for shutting
> the system down would require that they had control over the system in order
> to invoke the mechanism.
>
> They thought about that for a moment and were about to find that the system
> did not meet the requirements. I pointed out that anyone could pull the plug
> or network cable if needed or shut the system down at the switch and that
> this could be accomplished even if they lost control over the system and
> would certainly stop it from sending any information. They then agreed that
> the system met that requirement.
>

"Sometimes it's possible to do in hardware what's impossible to do in
software." Physical access is a powerful discriminator :)

-hpa
--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
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