Open Stack

On Thu, Sep 5, 2019, at 8:10 AM, Adrian Chiris wrote:
>  
> Greetings,
> 
> I was wondering what is the guideline in regards to which kernels are 
> supported by OpenStack in the various Linux distributions.
> 
> 
> Looking at [1], Taking for example latest CentOS major (7):
> 
> Every “minor” version is released with a different kernel version,
> 
> the oldest being released in 2014 (CentOS 7.0, kernel 3.10.0-123) and 
> the newest released in 2018 (CentOS 7.6, kernel 3.10.0-957)
> 
> 
> While I understand that OpenStack projects are expected to support all 
> CentOS 7.x releases.

It is my understanding that CentOS (and RHEL?) only support the current/latest point release of their distro [3]. We only test against that current point release. I don't expect we can be expected to support a distro release which the distro doesn't even support.

All that to say I would only worry about the most recent point release.

> 
> Does the same applies for the kernels they _originally_ came out with?
> 
> 
> The reason I’m asking, is because I was working on doing some cleanup 
> in neutron [2] for a workaround introduced because of an old kernel bug,
> 
> It is unclear to me if it is safe to introduce this change.
> 
> 
> [1]  
> https://governance.openstack.org/tc/reference/project-testing-interface.html#linux-distributions
> 
> [2] https://review.opendev.org/#/c/677095/

[3] https://wiki.centos.org/FAQ/General#head-dcca41e9a3d5ac4c6d900a991990fd11930867d6