Public bug reported:
Description
===========
When creating a flavor with `hw:maxphysaddr_mode='passthrough'`, spawning a VM
with that flavor fails in our env.
Steps to reproduce
==================
* set `hw:maxphysaddr_mode='passthrough' on a flavor's extra_specs
* spawn a VM with that flavor
Expected result
===============
VM spawns.
Actual result
=============
We found an exception in the logs.
Environment
===========
We're running Nova 2023.2 (bobcat) with the libvirt + KVM hypervisor.
Logs & Configs
==============
```
File
"/var/lib/openstack/lib/python3.10/site-packages/nova/virt/libvirt/config.py",
line 792, in parse_dom
self.bits = int(xmldoc.get("bits"))
TypeError: int() argument must be a string, a bytes-like object or a real
number, not 'NoneType'
```
Side note: Setting `hw:maxphysaddr_bits` doesn't work with mode `passthrough`,
so this is not a workaround:
> CPU maximum physical address bits number specification cannot be used with
> mode='passthrough'
** Affects: nova
Importance: Undecided
Status: In Progress
--
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/2099663
Title:
Failure spawning VMs with hw:maxphysaddr_mode passthrough
Status in OpenStack Compute (nova):
In Progress
Bug description:
Description
===========
When creating a flavor with `hw:maxphysaddr_mode='passthrough'`, spawning a
VM with that flavor fails in our env.
Steps to reproduce
==================
* set `hw:maxphysaddr_mode='passthrough' on a flavor's extra_specs
* spawn a VM with that flavor
Expected result
===============
VM spawns.
Actual result
=============
We found an exception in the logs.
Environment
===========
We're running Nova 2023.2 (bobcat) with the libvirt + KVM hypervisor.
Logs & Configs
==============
```
File
"/var/lib/openstack/lib/python3.10/site-packages/nova/virt/libvirt/config.py",
line 792, in parse_dom
self.bits = int(xmldoc.get("bits"))
TypeError: int() argument must be a string, a bytes-like object or a real
number, not 'NoneType'
```
Side note: Setting `hw:maxphysaddr_bits` doesn't work with mode
`passthrough`, so this is not a workaround:
> CPU maximum physical address bits number specification cannot be used with
mode='passthrough'
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https://bugs.launchpad.net/nova/+bug/2099663/+subscriptions
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