[Pkg-virtualbox-devel] Bug#555296: Suspend Virtualbox VMs on Host System Suspend

[Nick Daly]

Dear bug 555296 subscribers,

Recently, I ran into this bug, where a host system cannot resume from
hibernate-to-disk when a VirtualBox VM was running while VT-X is
enabled.  It's fairly common [0].

So, I decided to patch it.  This patch allows the system to successfully
suspend while VMs are running.  It's been deployed on my machine for
around a week now (10 - 20 successfull suspend-resume cycles, without
needing to restart).

On to the details.  The patch:

- Iterates through each user on the system.
- Saves the state of each user's running VMs, safely stopping them.
- The system then continues hibernating, safely.

Shortcomings of this script folks might want to address include:

- Not disablable through configuration settings (not really sure what
  config file to use).

Enabling this script in Squeeze involves linking it to:

    /etc/pm/sleep.d/01_virtualbox-vm-control

I hope this helps somebody,
Nick

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