On Tue, 10 Apr 2018, Josh Poimboeuf wrote:

> > > I agree here. Practically we use only cumulative replacement patches at
> > > SUSE. So with that in mind I don't care about the stacking much. But, it
> > > may make sense for someone else. Evgenii mentioned they used it for
> > > hotfixes. Therefore I'm reluctant to remove it completely.
> > 
> > Well, it was convenient in some cases to provide a hot fix for a given bug
> > on top of our official cumulative patch. So far, such fixes were only used
> > on a few of the customers' machines (where they were needed ASAP). It just
> > made it easier to see where is the common set of fixes and where is the
> > customer-specific addition.
> > 
> > I think, we can use cumulative patches in such cases too without much
> > additional effort. For example, we can encode the distinction (base set of
> > fixes + addition) in the module name or somewhere else.
> > 
> > So, I think, it is fine for us, if stacking support is removed. Especially
> > if that makes the implementation of livepatch less complex and more
> > reliable.
> Just to clarify, I think we are just proposing the removal of the
> enforcement of the stacking order.  We will still allow multiple
> non-replace patches to be applied.  We just won't enforce which patches
> can be disabled/removed at any given time.

Heh, so I misunderstood. I thought you were talking about the removal of 
the stacking. Now it makes more sense.
> So I think your old way of doing things (individual unrelated patches on
> top of a cumulative patch) would still work.

Yes. On the other hand the user needs to be even more careful, so I'd 
expect an update of documentation with the removal :).


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