Date: Tue, 24 May 2005 13:43:56 -0400 From: Tim Kellers <kellers@njit.edu> To: freebsd-questions@freebsd.org Subject: Re: Top only showing one active CPU on HTT system Message-ID: <200505241343.58666.kellers@njit.edu> In-Reply-To: <200505241200.55346.kirk@strauser.com> References: <200505241053.36377.kirk@strauser.com> <200505241159.24346.kellers@njit.edu> <200505241200.55346.kirk@strauser.com>
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On Tuesday 24 May 2005 01:00 pm, Kirk Strauser wrote: > On Tuesday 24 May 2005 10:59, Tim Kellers wrote: > > The acpi_load="YES" in /boot/loader.conf might do the trick. > > Actually, it turns out that I have to set machdep.hyperthreading_allowed=1 > for HTT to work now. > > Speaking of which, is that tunable documented anywhere besides the HTT > security PR? It's not in the 5.4-STABLE /usr/src/UPDATING or anyplace else > I've looked, so I was more than a bit surprised to find that such an > important default was changed without much notice. I imagine a lot of > people read the PR much as I did: "blah, blah, theoretical, doesn't affect > me, next message"... I even read the SA and it managed to completely pass through my head without hitting one brain cell.
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