On Tue, Nov 10, 2015 at 05:01:41PM +0000, Rainer Weikusat wrote:
> Didier Kryn <k...@in2p3.fr> writes:
> > Le 10/11/2015 01:01, Hendrik Boom a écrit :
> 
> [...]
> 
> >> I used chrony as my NTP client.  If the discrepancy between local time
> >> on the machine and the correct time, it just gave up.  I/m not sure at
> >> what discrepancy this happened, but it helped a lot to explicitly set
> >> the time by my watch.  Once the time was properly synced, though,
> >> chrony worked well to keep it correct.
> >
> >     I use the package simply named "ntp" in Debian repo.
> 
> [...]
> 
> >     This ntp client doesn't give up.
> 
> That's not really true: The ntpd from the NTP reference implementation
> will raise a so-called 'clock panic' if the system time is off by more
> than the panic threshold (compile-time configurable as it seems) of
> 1000s. If the daemon was started with -g (Debian default), it will
> ignore the first panic and change the clock nevertheless. A subsequent
> one will cause it to exit.

I remember the clock was more than an hour out.  Possibly more than a day.
Perhaps chrony also has a clock panic.

-- hendrik
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