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Date: Sun, 2 Oct 2005 12:55:59 +0400
From: "Andrew P." <infofarmer@gmail.com>
To: hshh <hunreal@gmail.com>
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References: <9b6b59500510010319k479e5085o8d122b0799e006f3@mail.gmail.com>
Cc: freebsd-questions@freebsd.org
Subject: Re: Can I disable HyperThreading in OS?
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On 10/1/05, hshh <hunreal@gmail.com> wrote:
> Hi,
>
> I have a dual XEON smp box. There is option about disable HTT in bios, bu=
t
> it can't work. It's still display 4 cpu in my OS.
> Can I disablt HTT in OS directly? I am running FreeBSD 4.11.
>
> Regards.
> _______________________________________________
> freebsd-questions@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.o=
rg"
>

Take a look at this advisory:

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:09.htt.asc

I think you want to upgrade to RELENG_4_11,
or use the workaround.