initially my experience with Proxmox 6 was rather disturbing, eventually i resolved what caused these issues and proxmox works well for me now.
Recently (yeah) though i took on myself to install FreeNAS and OPNSense which are FreeBSD based and both behave "weird".
The vm config i use can be summarised as cpu=host+numa1, machine=q35, memory=ballooning, hotplug=memory,cpu, diskcontroller=virtio scsi (single) or VMPCSCi
While the machine install just fine and even work fine for a while there soon appear issue with the network controllers and disk storage. Both VM report to be out of disk space. Network connection appear to work then not work after a reboot, work again after restarting the network interface.
I checked default routing but this is working as expected. Noticeable is the "no disk space left" issue appears to be 'synced' across the VM.
I suspect hotplug or ballooning to be a root cause. FreeBSD does not appear to have Qemu Agent support installed which also makes it a bit more likely for issues to occcur i guess.
Recently (yeah) though i took on myself to install FreeNAS and OPNSense which are FreeBSD based and both behave "weird".
The vm config i use can be summarised as cpu=host+numa1, machine=q35, memory=ballooning, hotplug=memory,cpu, diskcontroller=virtio scsi (single) or VMPCSCi
While the machine install just fine and even work fine for a while there soon appear issue with the network controllers and disk storage. Both VM report to be out of disk space. Network connection appear to work then not work after a reboot, work again after restarting the network interface.
I checked default routing but this is working as expected. Noticeable is the "no disk space left" issue appears to be 'synced' across the VM.
I suspect hotplug or ballooning to be a root cause. FreeBSD does not appear to have Qemu Agent support installed which also makes it a bit more likely for issues to occcur i guess.