In message <200112031132.fB3BWwS08054@mirage.ceres.dti.ne.jp>,
Izumi Tsutsui wrote:

>> panic: kernel diagnostic assertion "rv" failed: file
>> "../../../../uvm/uvm_pager_i.h", line 64
>
>Update powerpc/pmap.c. This should be fixed in rev 1.48.

I'm not sure if NEWPMAP is now ddefault on powerpc. Anyway it doen't
hurt to add

options     NEWPMAP

to your kernel config file.

The rebuild the kernel, install it, reboot. For me it fixed those
problems.

-- 
Xavier HUMBERT - INJEP
http://www.freetibet.org
http://www.tibet.fr/

So long, George