VritualBox Whonix restoring snapshot - Error 'lsilogicsas' VERR_SSM_LOADED_TOO_LITTLE

[nurmagoz]

Restoring snapshot of Whonix 15/14 + Vbox 6.0.4 on debian buster will give this error:

[Patrick]

VERR_SSM_LOADED_TOO_LITTLE

VirtulaBox upstream bug:

• Error 'lsilogicsas' (VERR_SSM_LOADED_TOO_LITTLE) when opening a saved session

• Problem restoring saved machine - virtualbox.org

Workaround: shut down VMs before taking snapshots.

Non-solutions: switching virtual hard disk controller to SATA AHCI due to:

• https://github.com/Whonix/Whonix/issues/274
• ATA Freeze
• #10031 (High I/O causing filesystem corruption) – Oracle VM VirtualBox

Maybe some other vrtual hard disk controller would be affected by neither snapshot restore not ata freeze bug?