Guest time goes too fast

[LoOoD]

Host is a OSX, guest is a CentOS 5.3 with kernel 2.6.18-128.1.16. The time on the guest host is going too fast. For every hour, the guest adds an additional 40 minutes to the time.

[LoOoD]

I'm doing the following in screen to keep the time synced for now.

while : ; do ntpdate 172.17.17.10 ; sleep 10; done

Its consistently 5 seconds faster.

[marvin0815]

I can confirm this with Windows XP host and CentOS 4.7 (x86) guest. The time it gains differs from several minutes per second on heavy activity (like service starts) and some seconds when just typing in a ssh console.

And apparently this doesn't happen with CentOS 4.7 AMD64 guest.

[Nicolas Dubois]

Same problem here

Host: Quad core / Vista x64 Guest: Centos 5.3 x64 2.6.18-164.2.1

[finex]

Isn't this a duplicate of bug ​http://www.virtualbox.org/ticket/4453 ?

[Frank Mehnert]

This problem should be fixed with VBox 3.0.12. Probably you have to add the kernel parameter nmi_watchdog=0, otherwise the guest could crash with VBox 3.0.12. Please reopen if necessary.

[David Cottingham]

Running 3.0.12 (r54655) on Ubuntu 9.04, with a Windows Vista guest.

Guest clock is persistently *slow* (i.e. ~20 minutes behind host clock).

On updating the guest's clock to the correct time, about half an hour later, the time is 17 minutes slow. This problem continues even after the reboot of the guest.

Host is Intel Core 2 quad core, 5319.92 bogomips.

Thoughts?

[helmo]

Stopping the guest, and then starting it again has 'solved' such problems for me in the past. A simple reboot or save/start would have no effect in such cases.

I guess there is something in the guest's state that's gone wrong. In my case it often occurred just after a save/start cycle e.g. for a VirtualBox upgrade. (Linux host and guest)

[Frank Mehnert]

Please reopen if still relevant with VBox 4.2.6.