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Cannot create a snapshot via qemu when Zenarmor is installed

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deajan:
So, I've got a couple of OPNSenses running with Zenarmor (23.7 to 24.1.2).
I've installed the qemu-guest-agent plugin into OPNSense.

When I try to make a snapshot with quiescing eg `virsh snapshot-create myvm.local --disky-only --atomic --quiesce`, I get the following error:


--- Quote ---error: internal error: unable to execute QEMU agent command 'guest-fsfreeze-freeze': failed to freeze /usr/local/zenarmor/output/active/temp: Resource deadlock avoided
--- End quote ---

As far as I understand, the qemu-agent freeze / thaw scripts would need to exclude that path, which is basically a RAM disk.

I've searched for the freeze / thaw scripts in OPNsense but couldn't find them.
Any idea where to configure this exception perhaps ?

Best regards.

IHK:
New files are constantly written to the RAM disk space. The problem may be caused by this. You can switch it to Engine Bypass or stop mode during the snapshot.

deajan:
I understood that this is a RAM disk, which for obvious reasons cannot be quiesced.

Of course I could temporarily disable Zenarmor for backups, but automating this would be some kind of hell.

There must be a way to exclude specific disks somewhere, I just cannot find the freeze scripts to configure so.
Any help would be appreciated.

IHK:
Hi,

You can write a cron script like the one below

before the process starts
Service esstpect stop

When the process is finished
Service eastpect Start

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