Hyperbollocks is disabled by default.
See /usr/src/UPDATING entry for 20050513:
Intel Hyper-Threading is now disabled by default due to a
security issue, but can be re-enabled by setting the
machdep.hyperthreading_allowed tunable in /boot/loader.conf.
ah,
hello's!
i've recently installed freebsd 5.4 and patched up to p6. since the
install and up to this patch level, i'm not certain the second cpu
(hyperthreading, not physical cpu) is being used. i guess it could just be
top not showing it, cuz it's in my kernel and in dmesg.
relevant kernel lines
joseph kacmarcik wrote:
hello's!
i've recently installed freebsd 5.4 and patched up to p6. since the
install and up to this patch level, i'm not certain the second cpu
(hyperthreading, not physical cpu) is being used. i guess it could just be
top not showing it, cuz it's in my kernel and in
