Re: [patch] PIII/Katmai & FXSAVE support, disable serial-#, 2.2.2

Alan Cox (alan@lxorguk.ukuu.org.uk)
Wed, 3 Mar 1999 03:56:26 +0000 (GMT)


> Regarding this lamearse cpuid thing. Is the off switch and on/off switch?

Intel claim its a one way off switch per boot. C't I think it was published
some tricks to get around this but they appear to alter the BIOS settings
and then reboot. Not something that will go unnoticed on a Linux box even
if it does under that other OS. Phil Karn and Ingo's patches both turn it
off regardless of BIOS setting

Don't worry. You've got unique ethernet, disk firmware revision and possibly
even BIOS serial numbers you can't turn off anyway

Alan

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