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From: mogul@pa.dec.com (Jeffrey Mogul)
Newsgroups: comp.unix.ultrix
Subject: Re: ntpd halts clock on a DS3100 (?)
Keywords: ntp time synchronization freezes the clock
Message-ID: <1991Jun10.182837.1527@pa.dec.com>
Date: 10 Jun 91 18:28:37 GMT
References: <980@imec.UUCP>
Sender: news@pa.dec.com (News)
Organization: DEC Western Research
Lines: 22

In article <980@imec.UUCP> elsen@imec.be (Marc Elsen) writes:
>
>  Recently we switched  from timed to ntpd on our DECstations :
>
>  The following has happened 2 times since : on 2 DIFFERENT decstation
>  the clock seemingly halted !!
>  That is subsequent date commands always showed the same frozen time !!!
>
>  The clock could be restarted by setting it to the current time.
>
>  Is this due to a bug in ntpd.
>  You can imagine that this problem is very annoying for end users.

This is a bug in the Ultrix 4.1 kernel (and perhaps 4.0); I believe it
only affects MIPS-based systems (not Vaxen).

Anyway, it's fixed in Ultrix 4.2.

I don't know if there's a patch available for Ultrix 4.1, but if
there is one it would be a new kern_clock.o module.

-Jeff