amd64 and FreeBSD 5.4-BETA1

Torfinn Ingolfsen torfinn.ingolfsen at
Wed Mar 23 17:25:04 PST 2005

On Thu, 24 Mar 2005 00:12:48 +0100
des at (Dag-Erling Smørgrav) wrote:

> Remove NO_MIXED_MODE from your kernel config, and try again with the
> APIC enabled.  NO_MIXED_MODE is (IMHO incorrectly) enabled by default
> to "avoid penalizing non-broken chipsets".

Well, that was an interesting experience.
I commented out the 'options NO_MIXED_MODE' line from my kernel config
(a copy of GENERIC), made a new kernel and installed it.
I commented out the hint from /boot/loader.conf, and rebooted the

The results were ... special. The machine would do anything from reboot
to just mess up the display (vertical stripes instead of text) during
When I set the hint again, the machine booted like before (ie. with the
15 seconds delay).

Torfinn Ingolfsen,

More information about the freebsd-stable mailing list