Re: 5.10 LTS Kernel: 2 or 6 years?

[Hanjun Guo]

On 2021/2/20 17:53, Greg Kroah-Hartman wrote:
> On Sat, Feb 20, 2021 at 03:02:54PM +0800, Hanjun Guo wrote:
> > On 2021/2/19 17:08, Greg Kroah-Hartman wrote:
> > > On Fri, Feb 19, 2021 at 04:54:24PM +0800, Hanjun Guo wrote:
> > > > Hi Greg,
> > > >
> > > > On 2021/1/26 15:29, Greg Kroah-Hartman wrote:
> > > > [...]
> > > > > I want to see companies _using_ the kernel, and most importantly,
> > > > > _updating_ their devices with it, to know if it is worth to keep around
> > > > > for longer than 2 years.  I also, hopefully, want to see how those
> > > > > companies will help me out in the testing and maintenance of that kernel
> > > > > version in order to make supporting it for 6 years actually possible.
> > > > >
> > > > > So, are you planning on using 5.10?  Will you will be willing to help
> > > > > out in testing the -rc releases I make to let me know if there are any
> > > > > problems, and to help in pointing out and backporting any specific
> > > > > patches that your platforms need for that kernel release?
> > > >
> > > > We(Huawei) are willing to commit resources to help out in testing the
> > > > stable -rc releases, and to help to backport patches for stable kernels.
> > >
> > > Wonderful!
> > >
> > > > 5.10 stable kernel will be used for openEuler [1] kernel and also inside
> > > > Huawei. From customer's feedback, it's very important to see the stable
> > > > kernel we used to be maintained for 6 years in the community, and we
> > > > will use 5.10 kernel for at least 6 years, so we are willing to help
> > > > you and help ourselves :)
> > > >
> > > > In specific, we will start from the testing work, using HULK robot
> > > > (reports lots of bugs to mainline kernel) testing framework to test
> > > > compile, reboot, functional testing, and will extend to basic
> > > > performance regression testing in the future.
> > >
> > > Great!  Do you all need an email notification when the -rc releases come
> > > out for the stable trees, or can you trigger off of the -rc stable git
> > > tree?  Different CI systems work in different ways :)
> >
> > We can trigger the test when you updated the -rc stable git tree,
> > by monitoring new commits for the stable branches. So if you push
> > all the commits at once for -rc stable branches, then our CI system
> > can work well.
>
> I do push to the -rc branches, but those branches are rebased, and I do
> "intermediate" pushes as well.  Meaning I push to have CI systems run on
> the existing patch queue at times that are not only the "main" -rc
> release periods.
>
> Watch the branches for a few weeks to get an idea of how they work if
> you are curious.

Will run our CI system based on your -rc branch to see if anything
doesn't work, then update our system as needed.

Thanks
Hanjun