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Re: [Xen-devel] [Notes for xen summit 2018 design session] Process changes: is the 6 monthly release Cadence too short, Security Process, ...

On Thu, Jul 05, 2018 at 09:19:10AM +0100, Wei Liu wrote:
> On Thu, Jul 05, 2018 at 10:06:52AM +0200, Roger Pau Monné wrote:
> > On Thu, Jul 05, 2018 at 08:53:51AM +0100, Wei Liu wrote:
> > > On Wed, Jul 04, 2018 at 03:26:16PM +0000, George Dunlap wrote:
> > > > So a fair amount of the discussion was about what it would look like,
> > > > and what it would take, to make it such that almost any push from
> > > > osstest (or whatever testing infrasctructure we went with) could
> > > > reasonably be released, and would have a very low expectation of
> > > > having extraneous bugs.
> > > 
> > > I would also like to advocate changing the mentality a bit. The current
> > > mentality is that "we want to be reasonably sure there is low
> > > expectation of bugs before we can release". Why not change to "we
> > > release when we're sure there is definitely improvement in the tree
> > > compared to last release"?
> > 
> > The current guideline is quite objective, if there are no reported
> > bugs and osstest flight doesn't show any regressions we are ready to
> > release. OTOH how should the improvements to the tree be quantized and
> > measured?
> Say, a security bug is fixed? A major bug is closed?

I think this is still quite subjective, whereas the previous criteria
was objective.

Who will take the decision of whether a bug is major or not?

> > 
> > At any point during the development or the release process the tree
> > will contain improvements in some areas compared to the last
> > release.
> Yes, that is right. That's what CD does, right?

I thin so, but I'm not an expert on development techniques TBH :).

IMO one of the problems with Xen is that users don't tend to test
master often, I assume this is because Xen is a critical piece of
their infra, and they require it to be completely stable. Not everyone
can effort an extra box just for testing Xen master. I'm not sure this
is going to change a lot even if nightly builds are provided.

This is different from say an email or IRC clients, where people don't
mind that much using unstable versions, and so the development branch
gets more testing even before the release process starts.


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