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Re: ntpd crashes.



On Fri, 21 Sep 2012 12:05:01 +0200, Mauro wrote:

> On 20 September 2012 22:20, Mauro <mrsanna1@gmail.com> wrote:
>> On 20 September 2012 16:56, John Hasler <jhasler@newsguy.com> wrote:
>>> Someone who Stefan failed to identify wrote:
>>>> ...ntpd crashes on my server.  Time jumps forward one hour every time
>>>> this has happened.
>>>
>>> I doubt ntpd is crashing.  Most likely something else is jumping the
>>> system clock and ntpd is behaving as designed and exiting when it sees
>>> a one hour error.  Shut down ntpd, set the clock correctly, and wait. 
>>> I suspect that eventually you'll see the clock jump even without ntpd
>>> running.
>>
>> Yes that is.
>> I have no cron jobs at all, I only have xen and heartbeat + pacemaker
>> on my two nodes and no processes that set the system clock. The clock
>> jumps ahead of one or two hours and I don't know why. Perhaps some
>> kernel bug?

ntpd should avoid the clock going that forward and keep it disciplined.

> It seems not ntp problem but a kernel bug:
> 
> http://my.opera.com/marcomarongiu/blog/2010/08/18/debugging-ntp-again-part-4-and-last

You can try the mentioned work-around and see if that works for you.

Anyway, if that's the case, you should experience the same with different
ntp daemons and not just with ntpd :-?

Greetings,

-- 
Camaleón


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