[plug] Hyperthreading ... boot parameter to disable it?

[Jason Nicholls]

> >> ISTR that there was some boot parameter to prevent a Xeon going into
> >> Hyperthreading... but don't remember the exact details.
> 
> >A quick google seems to point to simply adding "noht" to your boot 
> >parameters.
> 
> The Google should have shown you that the "noht" parameter is
> wishful thinking. :-) Sorry.

You can use acpi=off as acpi support seems to be necessary for HT.

Jason.