Re: Hyper-threaded pickle

[Jeff Garzik]

Len Brown wrote:
> Re: old systems -- we use dmi_scan to disable ACPI on systems by default
> on systems older than 1/1/2001.

What happens for the no-DMI case?


> Re: opteron & !HT.  Andi showed me a patch today that disables X86_HT if
> you build specifically for an AMD CPU that doesn't support HT.  This
> looks like a good idea, and possibly should be expanded.

Cool.

My main worry/concern is breaking older systems, due to this change in 
behavior.

An easy first step is to make CONFIG_X86_HT selectable again.

	Jeff



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