Hello,
>I have installed on my sparc ss20 now two 150 mhr ross cpu
>and i have netbsd new installed on my system

I have two sets of your configuration, but none is currently
running netbsd. The thing is that I haven't been able to
configure "-current" correctly. "-current" without MPU option
compiles and runs fine, but compilation failed with that option
in June 2003 and has not been tried again.
  I have been told to disable "instruction cache", which does not 
seriously affect the performance. I haven't been able to
track down the relevant code to do so. (I am just too lazy...)

If there is any progress after 10 April 2003 concerning double ROSS
CPU's, let me know.

Cheers,
Tsuji