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From: "Tamouh H." <hakmi@rogers.com>
To: "'Jonathan Horne'" <freebsd@dfwlp.com>,
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Date: Sun, 30 Jul 2006 19:52:07 -0400
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Cc: 
Subject: RE: anyone with a p4 HT machine ever see anything from cpu1?
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> 
> On Sunday 30 July 2006 13:36, Tamouh H. wrote:
> > do a check to make sure HT is enabled:
> >
> > sysctl -a machdep.hyperthreading_allowed
> 
> oops... we have definatly found my problem.
> 
> [root@athena ~]# sysctl -a machdep.hyperthreading_allowed
> machdep.hyperthreading_allowed: 0
> 
> what do i need to do to get it changed?
> 
> thanks,
> jonathan
> 

do :
sysctl -w machdep.hyperthreading_allowed=1

and make sure the line exist in /etc/sysctl.conf

machdep.hyperthreading_allowed=1