Re: [Ksummit-discuss] [MAINTAINER SUMMIT] community management/subsystem governance

[Linus Walleij <linus.walleij@linaro.org>]

On Tue, Sep 11, 2018 at 5:02 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote:

> - Merge enough trees together until you have enough people capable to
> doing maintainer duties for a triumvirate. That allows you to rotate,
> arm-soc style. Rule of thumb is anything below 100 patches per release
> cycle is probably too small, but you might need a lot more than that.
> 3 maintainers seems to be ideal.

This is the kind of rules of thumb we need to scale development
IMO. "My" subsystems (GPIO and pinctrl) is on some hard to define
threshold. I keep at it for now. Maybe I should just merge them
into one single tree to deliberately get a big enough mass to get
some group maintainership going.

> - Intentionally abandon stuff. Sometimes no one else bothers to work
> because the current maintainer is all over the place, does everything,
> and suffocates any newbie's attempt to help out.
(...)
> That kind of skewed contribution statistics is indeed not sustainable,
> and indicates some serious problem imo. What exactly goes wrong, and
> how to best fix it I can't tell without more information though. From
> my experience in drm, where we also have some areas with highly skewed
> contribution statistics, it could be the maintainer driving people
> away, ensuring that there's only one-off contributions. Usually
> unkowningly.

This problem is likely psychological and/or sociologial or even
ethnological rather than technical.

Despite several attempts of kernel maintainers to actively downplay
their role (Torvalds sets a good example in
Documentation/process/management-style.rst)
kernel maintainers are still perceived from the outside as some
kind of superior beings to which layperson developers feel
inferior to and look up to.

I think it's not an option to try to stop people from looking
up to kernel maintainers no matter how much we'd like that,
instead we need to assume the responsibility.

I do not know how to best deal with this, I guess maintainers
really need to watch their behaviors, but we would better ask
someone experienced in group dynamics what desirable
behaviors are.

If I take a guess I suspect the same qualities are desired for any
good leader or good parent: maintainers should have infinite
patience, infinite time to reply to questions (also infinitisemal
latency so they are always there!), recognize all their own
weaknesses and always say they are sorry when they have
been rude, be encouraging, sweet, nurturing, criticize in a
way that makes it clear that it is the performance not the person
that needs improvement, and throwing in some extra rewards
for desired behavior every now and then. (I think someone
mentioned a pareto ratio of 80% praise and 20% critique
is ideal, it's likely an unscientific rule of thumb.)

Needless to say no real person lives up to the above.
No parent does either. Some just fail less or in less obvious
ways.

I am worried that the intersection of the sets of people that
naturally have the desired personality traits and also are
reasonably good engineers is actually pretty small and that is
why we have a problem.

Yours,
Linus Walleij