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Path: utzoo!linus!philabs!cmcl2!seismo!trwatf!root
From: root@trwatf.UUCP (Lord Frith)
Newsgroups: net.unix-wizards
Subject: Re: RA81 driver problems on BSD4.2...
Message-ID: <962@trwatf.UUCP>
Date: Tue, 4-Jun-85 12:39:49 EDT
Article-I.D.: trwatf.962
Posted: Tue Jun  4 12:39:49 1985
Date-Received: Thu, 6-Jun-85 20:44:23 EDT
References: <650@genrad.UUCP> <13500035@ea.UUCP>
Reply-To: root@trwatf.UUCP (Lord Frith)
Organization: TRW Advanced Technology Facility, Merrifield VA.
Lines: 18

We had what appeared to be driver problems as well.  At first our Unix
4.2 / RA81 / RA60 combo seemed to work fine.  Then, gradually, the
system began crashing with mysterious hard errors being recorded on the
console.  The crashes became more and more frequent... once a week...
once a day... twice a day...  until it crashed one day and refused to
boot again (seems every copy of unix on the root fs was removed!  That
included vmunix genvmunix vmunix.old and vmunix.pre_chaos).

So was it a software problem?  A media flaw on the disk?

Nope... our UDA50 controller had an old rev number.  When DEC replaced
it with a "newer" version, the problem went away like magic.
-- 

UUCP: ...{decvax,ihnp4,allegra}!seismo!trwatf!root	- Lord Frith
ARPA: trwatf!root@SEISMO

Rambo: First Blood part III	The Quest for Jane Fonda