Date: Fri, 27 May 2005 15:57:38 -0400 From: "Paul Dufresne" <dufresnep@fastmail.fm> To: freebsd-questions@freebsd.org Subject: Re: Problem with HT support in 5.4 Message-ID: <1117223858.4322.235124926@webmail.messagingengine.com> In-Reply-To: <20050527093046.748e33c1@jacob.6texans.net> References: <20050527085445.38de5553@jacob.6texans.net> <b7052e1e05052707056d4faa4@mail.gmail.com> <20050527093046.748e33c1@jacob.6texans.net>
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> > Oh, wait, it is probably just the last HT security patch, > > ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:09.htt.asc. > > hmm... So basically, SMP can be enabled, but it won't use >HT even if it sees a capable processor? Not sure but after reading: <NOTE: For users that are certain that their environment is not affected by this vulnerability, such as single-user systems, Hyper-Threading Technology may be re-enabled by setting the tunable "machdep.hyperthreading_allowed". > I whould try: # echo "machdep.hyperthreading_allowed=1" >> /boot/loader.conf but I am a newbie to FreeBSD using a Pentium II, and indeed the only user -I hope- of my system. --Paul
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