Opened 11 years ago
Last modified 11 years ago
#11514 new defect
Time sync: incorrect host time — at Version 1
| Reported by: | Markus | Owned by: | |
|---|---|---|---|
| Component: | other | Version: | VirtualBox 4.2.6 |
| Keywords: | Cc: | ||
| Guest type: | Linux | Host type: | Windows |
Description (last modified by )
I have noticed that I do not get the time set correctly on my virtuals machines. They do sync but are always behind the host's time (which is set per ntp correctly) and funnily the times between several VMs running on the same host vary.
When I started to dig for the reason I started VBoxService with -vvv and saw that the Host time displayed there was not the actual time of the host (i.e. the windows machine on which the VMs are running).
I expected the time shown in the log as "Host:" would be the host time, e.g:
00:00:00.005246 timesync VBoxServiceTimeSyncWorker: Host: 2013-02-22T13:39:47.465000000Z
Unfortunately it differs from the hosts time. Even more suspicious: it differs differently on various VMs of the same host. Could this be the reason why time sync does not work correctly?
Below more debug output.
root@orpdm-03:~# /usr/sbin/VBoxService -f -vvv --enable-timesync --timesync-interval 1000 VBoxService 4.2.4 r81684 (verbosity: 3) linux.amd64 (Oct 26 2012 19:49:17) release log 00:00:00.002083 main Log opened 2013-02-22T13:37:48.290070000Z 00:00:00.002159 main OS Product: Linux 00:00:00.002180 main OS Release: 3.2.0-37-generic 00:00:00.002199 main OS Version: #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 00:00:00.002388 main OS Service Pack: #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 00:00:00.002412 main Executable: /opt/VBoxGuestAdditions-4.2.4/sbin/VBoxService 00:00:00.002415 main Process ID: 31071 00:00:00.002418 main Package type: LINUX_64BITS_GENERIC 00:00:00.002608 main 4.2.4 r81684 started. Verbose level = 3 00:00:00.002766 main Initializing services ... 00:00:00.003517 main Service client ID: 0x24 00:00:00.003767 main VMInfo: Property Service Client ID: 0x25 00:00:00.003810 main VBoxServiceBalloonInit 00:00:00.003847 main MemBalloon: VbglR3MemBalloonRefresh failed with VERR_PERMISSION_DENIED 00:00:00.003942 main Service 'memballoon' was disabled because of missing functionality 00:00:00.003965 main VBoxServiceVMStatsInit 00:00:00.004058 main VBoxStatsInit: New statistics interval 0 seconds 00:00:00.004102 main VBoxServiceAutoMountInit 00:00:00.004353 main VBoxServiceAutoMountInit: Service Client ID: 0x26 00:00:00.004393 main Starting services ... 00:00:00.004414 main Starting service 'control' ... 00:00:00.004706 control Waiting for host msg ... 00:00:00.004831 main Starting service 'timesync' ... 00:00:00.005097 main Starting service 'vminfo' ... 00:00:00.005246 timesync VBoxServiceTimeSyncWorker: Host: 2013-02-22T13:39:47.465000000Z (MinAdjust: 100 ms) 00:00:00.005341 vminfo Writing guest property "/VirtualBox/GuestInfo/OS/Product" = "Linux" 00:00:00.005413 timesync VBoxServiceTimeSyncWorker: Guest: - 2013-02-22T13:37:48.293063000Z => 119 171 937 000 ns drift 00:00:00.005509 timesync VBoxServiceTimeSyncAdjust: adjtime by 119 171 937 000 ns
