Xref: utzoo comp.realtime:729 comp.os.os9:1057
Path: utzoo!attcan!uunet!mcsun!cernvax!herbert
From: herbert@cernvax.UUCP (herbert walseth)
Newsgroups: comp.realtime,comp.os.os9
Subject: Re: Time Problem on OS-9 Systems
Summary: Problem solved, bug in PEP clock driver.
Message-ID: <2042@cernvax.UUCP>
Date: 5 Jul 90 08:10:44 GMT
References: <2031@cernvax.UUCP>
Followup-To: comp.realtime
Organization: CERN, European Laboratory for Particle Physics
Lines: 28


>In article <2031@cernvax.UUCP> I described a problem with the real time
>clock on our OS-9 systems. After months of operation, the clock
>suddenly started to slow down.

To all of you who have spent the last nights awake trying to figure out
what was happening: You may now start to sleep again, the problem has been
solved!

The cpu board manufacturer finally took us seriously and I just had a fax
back where they admit a "small bug in our clock driver".  It will overflow
after around four months of operation and the clock will then no longer be
correct.

I am at any time ready to discuss the size of this bug with them, but
that is another story. Hopefully they will have an upgrade ready soon.

This bug should concern all users of the VMPM 68KC and VMPM 68KC-2
cpu boards from PEP Modular Computers. If you intent to have your
system continuously operational for more than four months, get hold
of the new clock driver first!

+----------------------------+-------------------------------------------+
|                            |                                           |
|  Herbert Walseth           |   No problem is so big or so complicated  |
|  herbert@cernvax.cern.ch   |   that it can't be run away from.         |
|                            |                                           |
+----------------------------+-------------------------------------------+