From: utzoo!decvax!cca!hplabs!hpda!hpda2!Jskud@sri-unix
Newsgroups: net.unix-wizards
Title: Re: Translation Buffer Parity faults on 11/750
Article-I.D.: hpda2.180
Posted: Fri Sep  3 22:51:13 1982
Received: Thu Sep  9 07:00:21 1982

I haven't seen all the related articles.  But I would like to say
that the cp tbug par fault is somewhat of misnomer, since it is, according
to a photocopy of the fiche listings (provided by DEC on request), also
indicative of cache parity errors and (non-existent) memory timeouts.
I have seen software generate this fault (due to bad memory references),
and suggest that you check the machine check summary register (mcsr)
to determine if bit 3 is on.  If so, you've got non-existent memory,
not a parity fault, which could be a hardware fault, rumored to be caused
by a vendor's chips (I don't (yet) know who) failing spec.

/Jskud