[SunRescue] Q on "optimal" OS for Sun4c machines, now that Solaris 8 won't run

[JamesLockwoodjames at foonly.com]

On Tue, 11 Jul 2000, Ken Hansen wrote:

> Well, if I throw in a SunPC card it's *kinda* like SMP, only the CPUs
> are *very* loosely coupled ;^)
> 
> (ASMP? ASymetric Multi Processing?)

Older SM100 CPU modules (shipped in early 4/600's) are AMP-only.  The
kernel runs on the master CPU and other CPU's can only be used for
applications.  Only SunOS 4 supported them which is why it wasn't a big
loss, it's impossible to get any degree of kernel concurrency with the
giant lock strategy anyway.

-James