>   Your memory tester never crashed? 

Never.

> Actually, can you do a dump of the
> programs that crash and see where they crash? 

I need a debugger for that. Dbx? I don't know If I have it,
and it may require long times of cold room compiling to get it.

> I still think you have a memory error. 

Why? It doesn't look like a memory error.

> Even memory will go bad sporadically (ie. certain
> temperatures et al.)  Maybe something to do with a "memory controller" 

That is possible. But then I should have seen something on the memorytest.

>(I don't know about the DS arch, but I know the HP3000's have them).  

Huh? DS? I am talking about pmax, netbsd on decstation3100.
Is this somehow lost in the  mail transfer?

>Does your mem tester randomly hit memory, or does it do it sequencially?

It does it sequencially, with random data. I sent the source code on
Email a couple of days ago. 

Kim0