system freezes

[Xen]

Xen schreef op 08-11-2017 18:28:

> Then there is weirdness about the clock:
> 
> [ 3639.891181] clocksource: timekeeping watchdog on CPU2: Marking
> clocksource 'tsc' as unstable because the skew is too large:
> [ 3639.891202] clocksource:                       'hpet' wd_now:
> 301bc391 wd_last: 90a8ad86 mask: ffffffff
> [ 3639.891206] clocksource:                       'tsc' cs_now:
> 9cb4474a36c cs_last: 98264db91aa mask: ffffffffffffffff
> [ 3639.896980] clocksource: Switched to clocksource hpet

JournalD also contains:

nov 08 16:46:47 xen-linux rtkit-daemon[2574]: The canary thread is 
apparently starving. Taking action.
nov 08 16:46:47 xen-linux rtkit-daemon[2574]: Demoting known real-time 
threads.
nov 08 16:46:47 xen-linux rtkit-daemon[2574]: Successfully demoted 
thread 6778 of process 2573 (n/a).
nov 08 16:46:47 xen-linux rtkit-daemon[2574]: Demoted 1 threads.
nov 08 16:48:42 xen-linux dbus[1301]: [system] Activating via systemd: 
service name='org.freedesktop.timedate1'
nov 08 16:48:42 xen-linux systemd[1]: Starting Time & Date Service...
nov 08 16:48:42 xen-linux dbus[1301]: [system] Successfully activated 
service 'org.freedesktop.timedate1'
nov 08 16:48:42 xen-linux systemd[1]: Started Time & Date Service.
nov 08 16:48:51 xen-linux systemd[1]: Reloading.
nov 08 16:48:51 xen-linux systemd[1]: Started ACPI event daemon.
nov 08 16:48:51 xen-linux systemd[1]: Started CUPS Scheduler.
nov 08 16:48:51 xen-linux systemd-timedated[22410]: Set NTP to enabled
nov 08 16:48:51 xen-linux systemd[1]: Starting Network Time 
Synchronization...
nov 08 16:48:51 xen-linux colord[1824]: (colord:1824): Cd-WARNING **: 
failed to get session [pid 22445]: No suc
nov 08 16:48:51 xen-linux systemd-timesyncd[22446]: The system is 
configured to read the RTC time in the local
nov 08 16:48:51 xen-linux systemd[1]: Started Network Time 
Synchronization.
nov 08 16:48:51 xen-linux systemd[1]: Reached target System Time 
Synchronized.
nov 08 17:27:16 xen-linux systemd[2383]: Time has been changed
nov 08 17:27:16 xen-linux systemd-timesyncd[22446]: Synchronized to time 
server 91.189.89.199:123 (ntp.ubuntu.c
nov 08 17:27:16 xen-linux systemd[1]: Time has been changed
nov 08 17:27:16 xen-linux systemd[1912]: Time has been changed

This was the moment I turned on automatic sync.

But I actually set the clock like yesterday.

So I guess it is CMOS battery time after all.

:-/.

The battery is not older than a few months.