Guest OS is turned to "saved" or "abort" state while running

[cheim.ios.]

Hi all,

We have a server that runs a few guest OS (8 in total) all the time. The host server and the guest OSes run 24x7. On the server there is a script running at a non working hour that will back up VirtualBox guest OS files. The commands used are:

For closing the running guest: VBoxManage controlvm ${VM} savestate
For restoring the running guest: VBoxManage startvm ${VM} --type gui
In the meantime of the two commands script copies VBox guest OS files and backs them up

There are cases in daily basis that at least one of the guest OSes hangs and turns to "saved" state. This may happen either during unused hours or even while working. All guest OSes have hanged at least once. Besides 8th guest OS, all the other have installed the Guest Additions.

The host machine details are:
CPU: Intel Core i7-5820 @ 3.3GHz 64bit
Memory: 32GB
OS: Fedora 25 4.8.14-300 64bit
Motherboard: MSI X99A Raider (MS-7885)
VirtualBox: 5.1.12 r112440 (Qt 5.7.1)

I attach the specification of all the guest OS and the log files of guest OS that hanged today.

Can you help me please find out what goes wrong? What can I do to avoid happening again?

Thanks in advance,

[Perryg]

The extension pack is newer than the running version of VirtualBox. They should match to avoid conflicts or even refusal to boot.

I would look at the over-commitment of memory and or vCPU as another cause.