Win 7 x86 Ultimate guest freezes if idle for about 20 min

[jnpapado]

I upgraded (uninstalled and reinstalled) from VB 3.2.12 to 4.0.0 without changing any settings on my guest VM's. Windows 7 guests freeze after being idle for about 20 mins on both Windows 7 64bit and XP hosts. There was also increase in the CPU utilization for those session processes.

I also have Linux and Solaris 10 guests that do not exhibit the same behaviour.

I tried pause and resume to no avail. I tried both 3.2.12 and 4.0.0 versions of the Windows Guest additions. Had to go back to VB3.2.12

[jnpapado]

VB Session log

[frank]

Could this be the power management of the Windows guest? Does this also happen if you increase the time after when Windows attempt to go into standby?

[nry]

Frank,

I checked the power management settings in all of the VM's we are running and every standby feature is disabled so I do not think that is the problem.

[jnpapado]

Replying to frank:

Could this be the power management of the Windows guest? Does this also happen if you increase the time after when Windows attempt to go into standby?

Seems like I narrowed it down to the Power service on the Windows 7 guest; for some reason it was disabled and so I could not manage the power settings on the guest. Once I enabled and I set everyting to "Never" I have seen no issues/lockups on the guest Weird that I did not see the same issue on VB 3.2.12

[jnpapado]

Replying to frank:

Could this be the power management of the Windows guest? Does this also happen if you increase the time after when Windows attempt to go into standby?

BTW Frank, I negleted toThank you for the pointer in the right direction.

[frank]

I will close this as duplicate of #8008. Described there are also some instructions (VBoxManage setextradata ...) which could make this problem go away without changing the guest power management settings.