On Wed, Mar 7, 2018 at 6:15 PM, Jan Siml <jsiml@plusline.net> wrote:
Hello,

Enable network and disks on your VM than do:
Run -> ONCE Ok Ignore errors. Ok
Run
Cheeers

WTF! That worked.

Did you know, why this works and what happens in the background? Is there a Bugzilla bug ID for this issue?

 BTW, here is the list of devices before:

engine=# select type, device, address, is_managed, is_plugged, alias from vm_device where vm_id in (select vm_guid from vm_static where vm_name='prod-hub-201');
    type    |    device     |                           address                    | is_managed | is_plugged |     alias
------------+---------------+--------------------------------------------------------------+------------+------------+----------------
 video      | qxl           |                    | t          | t          |
 controller | virtio-scsi   |                    | t          | t          |
 balloon    | memballoon    |                    | t          | f          | balloon0
 graphics   | spice         |                    | t          | t          |
  controller | virtio-serial | {slot=0x06, bus=0x00, domain=0x0000, type=pci, function=0x0} | t          | t          | virtio-serial0
 disk       | disk          | {slot=0x07, bus=0x00, domain=0x0000, type=pci, function=0x0} | f          | t          | virtio-disk0
 memballoon | memballoon    | {slot=0x08, bus=0x00, domain=0x0000, type=pci, function=0x0} | f          | t          | balloon0
 interface  | bridge        | {slot=0x03, bus=0x00, domain=0x0000, type=pci, function=0x0} | f          | t          | net0
 interface  | bridge        | {slot=0x09, bus=0x00, domain=0x0000, type=pci, function=0x0} | f          | t          | net1
 controller | scsi          | {slot=0x05, bus=0x00, domain=0x0000, type=pci, function=0x0} | f          | t          | scsi0
 controller | ide           | {slot=0x01, bus=0x00, domain=0x0000, type=pci, function=0x1} | f          | t          | ide
 controller | usb           | {slot=0x01, bus=0x00, domain=0x0000, type=pci, function=0x2} | t          | t          | usb
 channel    | unix          | {bus=0, controller=0, type=virtio-serial, port=1}            | f          | t          | channel0
 channel    | unix          | {bus=0, controller=0, type=virtio-serial, port=2}            | f          | t          | channel1
 channel    | spicevmc      | {bus=0, controller=0, type=virtio-serial, port=3}            | f          | t          | channel2
 interface  | bridge        |                    | t          | t          | net1
 interface  | bridge        |                    | t          | t          | net0
 disk       | cdrom         |                    | t          | f          | ide0-1-0
 disk       | cdrom         | {bus=1, controller=0, type=drive, target=0, unit=0}          | f          | t          | ide0-1-0
 disk       | disk          |                    | t          | t          | virtio-disk0
(20 rows)

 and afterwards:

engine=# select type, device, address, is_managed, is_plugged, alias from vm_device where vm_id in (select vm_guid from vm_static where vm_name='prod-hub-201');
    type    |    device     |                           address                    | is_managed | is_plugged |     alias
------------+---------------+--------------------------------------------------------------+------------+------------+----------------
  channel    | spicevmc      | {type=virtio-serial, bus=0, controller=0, port=3}            | f          | t          | channel2
 channel    | unix          | {type=virtio-serial, bus=0, controller=0, port=1}            | f          | t          | channel0
 interface  | bridge        | {type=pci, slot=0x04, bus=0x00, domain=0x0000, function=0x0} | t          | t          | net1
 controller | usb           | {type=pci, slot=0x01, bus=0x00, domain=0x0000, function=0x2} | t          | t          | usb
 controller | virtio-serial | {type=pci, slot=0x06, bus=0x00, domain=0x0000, function=0x0} | t          | t          | virtio-serial0
 interface  | bridge        | {type=pci, slot=0x03, bus=0x00, domain=0x0000, function=0x0} | t          | t          | net0
 controller | virtio-scsi   | {type=pci, slot=0x05, bus=0x00, domain=0x0000, function=0x0} | t          | t          | scsi0
 video      | qxl           | {type=pci, slot=0x02, bus=0x00, domain=0x0000, function=0x0} | t          | t          | video0
 channel    | unix          | {type=virtio-serial, bus=0, controller=0, port=2}            | f          | t          | channel1
 balloon    | memballoon    |                    | t          | t          | balloon0
 graphics   | spice         |                    | t          | t          |
 disk       | cdrom         |                    | t          | f          | ide0-1-0
  disk       | disk          | {type=pci, slot=0x07, bus=0x00, domain=0x0000, function=0x0} | t          | t          | virtio-disk0
(13 rows)


Thanks.
The problem was that unmanaged interfaces and disks were created (and thus, you previously had 4 interfaces devices, 2 disk devices and 2 CD devices).
That is most probably a result of a bug we had when migrating a VM that was started in cluster < 4.2 to 4.2 host.
The fix for this bug will be available in 4.2.2.
You could, alternatively, remove the unmanaged (disk and interface) devices and plug the managed ones.
 
Regards

Jan