Comment 3 for bug 1983516

fwiw, this issue is affecting me as well. I only see it on real hardware, but apparently it helps to add a lot of bridge interfaces to trigger the issue, particularly OVS bridges.

The Traceback I see refers to a real interface name, so I think this may occur under other circumstances than interface rename:

2022-08-16 10:23:30,009 - __init__.py[DEBUG]: Selected renderer 'netplan' from priority list: ['netplan', 'eni', 'sysconfig']
2022-08-16 10:23:30,009 - netplan.py[DEBUG]: V2 to V2 passthrough
2022-08-16 10:23:30,014 - util.py[DEBUG]: Writing to /etc/netplan/50-cloud-init.yaml - wb: [644] 4180 bytes
2022-08-16 10:23:30,014 - subp.py[DEBUG]: Running command ['netplan', 'generate'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,188 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/ovs-system'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,191 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/lo'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,195 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/bondM'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,200 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/enp129s0f0'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,204 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/eno1'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,207 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/br-bond0.2808'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,212 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/br-bond0.2806'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,215 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/br-bond0'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,220 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/br-bond0.2804'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,225 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/bond0'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,229 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/enp129s0f1'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,234 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/eno2'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,239 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/br-bond0.2807'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,243 - subp.py[DEBUG]: Running command ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/br-bond0.2805'] with allowed return codes [0] (shell=False, capture=True)
2022-08-16 10:23:30,247 - util.py[WARNING]: failed stage init
2022-08-16 10:23:30,248 - util.py[DEBUG]: failed stage init
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/cloudinit/cmd/main.py", line 740, in status_wrapper
    ret = functor(name, args)
  File "/usr/lib/python3/dist-packages/cloudinit/cmd/main.py", line 410, in main_init
    init.apply_network_config(bring_up=bring_up_interfaces)
  File "/usr/lib/python3/dist-packages/cloudinit/stages.py", line 937, in apply_network_config
    return self.distro.apply_network_config(
  File "/usr/lib/python3/dist-packages/cloudinit/distros/__init__.py", line 233, in apply_network_config
    self._write_network_state(network_state)
  File "/usr/lib/python3/dist-packages/cloudinit/distros/debian.py", line 142, in _write_network_state
    return super()._write_network_state(network_state)
  File "/usr/lib/python3/dist-packages/cloudinit/distros/__init__.py", line 129, in _write_network_state
    renderer.render_network_state(network_state)
  File "/usr/lib/python3/dist-packages/cloudinit/net/netplan.py", line 260, in render_network_state
    self._net_setup_link(run=self._postcmds)
  File "/usr/lib/python3/dist-packages/cloudinit/net/netplan.py", line 282, in _net_setup_link
    subp.subp(cmd, capture=True)
  File "/usr/lib/python3/dist-packages/cloudinit/subp.py", line 335, in subp
    raise ProcessExecutionError(
cloudinit.subp.ProcessExecutionError: Unexpected error while running command.
Command: ['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/br-bond0.2805']
Exit code: 1
Reason: -
Stdout:
Stderr: Trying to open "/etc/systemd/hwdb/hwdb.bin"...
        Trying to open "/etc/udev/hwdb.bin"...
        Trying to open "/usr/lib/systemd/hwdb/hwdb.bin"...
        Trying to open "/lib/systemd/hwdb/hwdb.bin"...
        Trying to open "/lib/udev/hwdb.bin"...
        === trie on-disk ===
        tool version: 249
        file size: 11124932 bytes
        header size 80 bytes
        strings 2374708 bytes
        nodes 8750144 bytes
        Load module index
        Found cgroup2 on /sys/fs/cgroup/, full unified hierarchy
        Found container virtualization none.
        Loaded timestamp for '/etc/systemd/network'.
        Loaded timestamp for '/run/systemd/network'.
        Parsed configuration file /usr/lib/systemd/network/99-default.link
        Parsed configuration file /usr/lib/systemd/network/73-usb-net-by-mac.link
        Parsed configuration file /run/systemd/network/10-netplan-enp129s0f1.link
        Parsed configuration file /run/systemd/network/10-netplan-enp129s0f0.link
        Parsed configuration file /run/systemd/network/10-netplan-eno2.link
        Parsed configuration file /run/systemd/network/10-netplan-eno1.link
        Created link configuration context.
        Failed to open device '/sys/class/net/br-bond0.2805': No such device
        Unload module index
        Unloaded link configuration context.