Thanks for your reply. I'll give it a try.

Lucas

On Feb 20, 2010, at 5:00 PM, Ivan Voras wrote:

> Lucas Wang wrote:
>> I tried to install Freebsd 8.0 on one of our lab machines, which is
>> SunFire v20z. After successfully installing it from CD, I followed the
>> following steps trying to update the kernel and world:
>> cvsup
>> make buildworld
>> make buildkernel
>> make installkernel
>> reboot
>> mergemaster -p
>> make installworld
>> Everything was fine until the `make installworld` process run for a while 
>> and then got stuck, after that it won't respond to Ctrl-C. When I tried to 
>> login from another tty, it doesn't respond either. I even tried installing 
>> the machine from scratch
>> several times, and at different times it got stuck when installing different 
>> libraries. I would really appreciate any ideas about why this could happen 
>> or how
>> to solve it.
> 
> If you have an AMD CPU of a recent generation, Try adding
> 
> vm.pmap.pg_ps_enabled=0
> 
> to /boot/loader.conf and rebooting. This disables Superpages - there is a CPU 
> bug on some of those.
> 
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