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Date:      Tue, 11 Nov 2003 22:28:17 -0000
From:      Vivek Khera <khera@kcilink.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: machdep.hlt_logical_cpus
Resent-Message-ID: <16305.25215.745441.429164@yertle.int.kciLink.com>
References:  <20031105125535.B41708@daemon.g-e-e-k.net> <44r80kgthw.fsf@be-well.ilk.org>

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>>>>> "LG" == Lowell Gilbert <freebsd-questions-local@be-well.ilk.org> writes:

>> daemon# sysctl machdep.hlt_logical_cpus=0
>> sysctl: unknown oid 'machdep.hlt_logical_cpus'

LG> Funny, it looks like it should be there as long as SMP is defined.
LG> Maybe you didn't actually get the bits as of the release?

I noticed something on one system on which I was trying this.  If the
BIOS has "logical cpu" disabled, then there is no HTT available, and
subsequently the machdep.hlt_logical_cpus is non-existent.  When I
went into the BIOS and enabled the logical cpus, the MIB showed up on
the next boot, and the system thinks it has 4 CPUs now :-)


-- 
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Vivek Khera, Ph.D.                Khera Communications, Inc.
Internet: khera@kciLink.com       Rockville, MD       +1-240-453-8497
AIM: vivekkhera Y!: vivek_khera   http://www.khera.org/~vivek/



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