[SunRescue] 3/160 won't pass diag. test

[Martin Frost]

William Janssen wrote:

> I don't know what I did to my 3/160 but it now gets to the
> " nxm buss error test" and then hangs. The last time I booted
> the machine I didn't wait for the full diag when I hit the "reset"
> button to see the messages again.

This doesn't refer to an `NXM bus' which is at fault: the NXM bus
error test is the test that accessing nonexistent memory correctly
causes a bus error. If your machine fails the test, then something
is at fault with either your MMU or the memory boards.

If you have external memory boards then try taking them out to see
if the problem goes away, then swap them back one at a time to work
out where the problem lies.

It is conceivable that a memory board configured for a different
amount of physical memory to that actually present could cause a
failure on this test.

--m