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Date:      Wed, 26 Feb 2003 16:47:13 -0600
From:      Juli Mallett <jmallett@FreeBSD.org>
To:        Trish Lynch <trish@bsdunix.net>
Cc:        John Baldwin <jhb@FreeBSD.ORG>, Slawek Zak <zaks@prioris.mini.pw.edu.pl>, freebsd-current@FreeBSD.ORG
Subject:   Re: HyperThreading not working?
Message-ID:  <20030226164713.B2816@FreeBSD.org>
In-Reply-To: <20030226174154.G830-100000@femme>; from trish@bsdunix.net on Wed, Feb 26, 2003 at 05:45:22PM -0500
References:  <XFMail.20030226140551.jhb@FreeBSD.org> <20030226174154.G830-100000@femme>

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* De: Trish Lynch <trish@bsdunix.net> [ Data: 2003-02-26 ]
	[ Subjecte: RE: HyperThreading not working? ]
> On Wed, 26 Feb 2003, John Baldwin wrote:
> 
> >
> > On 26-Feb-2003 Slawek Zak wrote:
> > > Hi,
> > >
> > > I'm in the process of installing 5.0-RELEASE-p3 on a Dell PowerEdge
> > > 2600 server. It has two HyperThreading Xeon 2.4Ghz processors, but
> > > HyperThreading is not working in FreeBSD. I guess that four
> > > processors should be visible in the system after boot. Yes - I've
> > > enabled `Logical Processors' in BIOS. BIOS revision is the latest
> > > available.
> > >
> > > Any thoughts? I attach full dmesg and mptable output. Kernel
> > > config too.
> >
> > 5.0 doesn't support HyperThreading.  The upcoming 5.1 and 4.8 releases
> > will support it.
> >
> 
> it doesn't? I have a 5.0-R box that surely does support HTT.

Your BIOS puts the logical CPUs into the MPTable.
-- 
Juli Mallett <jmallett@FreeBSD.org> - AIM: BSDFlata -- IRC: juli on EFnet
OpenDarwin, Mono, FreeBSD Developer - ircd-hybrid Developer, EFnet addict
FreeBSD on MIPS-Anything on FreeBSD - Never trust an ELF, COFF or Mach-O!

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