Anybody still experiencing freezing Linux VMs on CORE?

Apps and Virtualization
10

You don’t have to hack the middleware vm.py file to test the addition of a virtio-rnd device to a VM created via the WebUI.

FreeNAS CORE is using libvirtd ( when did that happen?) so you can edit the VM’s xml file direct using:

virsh edit <vmname>

Just add an extra bhyve arg line at the end of the xml file, e.g:

  <bhyve:commandline>
    <bhyve:arg value='-s 29,fbuf,tcp=192.168.0.66:5900,w=1600,h=900'/>
    <bhyve:arg value='-s 28,virtio-rnd'/>
  </bhyve:commandline>
</domain>

Get the vname CORE has allocated from:

virsh list --all

You must start the VM from the CLI not the WebUI, otherwise the xml edit is lost:

virsh start ...

Virtio device as sen in a Linux VM:

root@bunsenvm:~# lsmod | grep rng
virtio_rng             16384  0
virtio                 20480  4 virtio_rng,virtio_pci,virtio_blk,virtio_net
virtio_ring            45056  4 virtio_rng,virtio_pci,virtio_blk,virtio_net
root@bunsenvm:~#