Date: Thu, 6 Oct 2005 13:32:08 +0400 From: "Andrew P." <infofarmer@gmail.com> To: hshh <hunreal@gmail.com> Cc: FreeBsd List <freebsd-questions@freebsd.org> Subject: Re: Can I disable HyperThreading in OS? Message-ID: <cb5206420510060232i7543259exaa8c11a979cca1a1@mail.gmail.com> In-Reply-To: <9b6b59500510060158q48b6652evceef4906cf0e6051@mail.gmail.com> References: <9b6b59500510010319k479e5085o8d122b0799e006f3@mail.gmail.com> <cb5206420510020155m379d427if1370c9e57d185ef@mail.gmail.com> <9b6b59500510060158q48b6652evceef4906cf0e6051@mail.gmail.com>
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On 10/6/05, hshh <hunreal@gmail.com> wrote: > On 10/2/05, Andrew P. <infofarmer@gmail.com> wrote: > > 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= , > but > > > 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. > > > > Take a look at this advisory: > > > > > ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:09.htt.as= c > > > > I think you want to upgrade to RELENG_4_11, > > or use the workaround. > > My system is already cvsup to the lastest srouce,and rebuild the world an= d > kernel. > Now OS is FreeBSD 4.11-RELEASE-p12. > And I also check the sysctl, > machdep.hlt_logical_cpus: 1 > machdep.hyperthreading_allowed: 0 > Any other idea? Wait a minute, you say that after upgrading to the 4.11-p12 and rebooting you still have four CPU's showing in the system? Open the case and look inside, maybe there are four real processors inside... Are there still any lines in /boot/loader.conf?
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