Re: time stamp on vxWorks jumping to the future

[Dirk Zimoch <dirk.zimoch@psi.ch>]

On 20.11.2017 11:10, Dirk Zimoch wrote:
> Hello everyone,
>
> From time to time we see a strange problem with the timestamp on our
> vxWorks 5.5 IOCs. The timestamp jumps to the future (e.g. 2071). I have
> seen it happen on EPICS 3.14.12 as well as 3.14.8. Not all but more than
> one IOC seem to be affected from such an incident. Not all jump to the
> same future time.
>
> Has anyone else seen this effect?
> Can a corrupted NTP message cause this?
>
> Dirk
Example:
ZPSAF15-VME > NTPTime_Report 1
NTP driver is synchronized with server
Syncronization interval = 60.0 seconds
Last synchronized at 2017-11-24 08:45:29.149741
OS tick rate = 100 Hz (nominal)
Measured tick rate = 100.024 Hz
NTP Server = 129.129.190.1
value = 0 = 0x0
ZPSAF15-VME > date
2073/05/20 11:20:31.396217
value = 27 = 0x1b

Time jumped this night, only on this IOC.