Linux 4.19-rc4 released, an apology, and a maintainership note
Sep 16, 2018, 18:30 (1 Talkback[s])
(Other stories by Linus Torvalds)
Another week, another rc.
Nothing particularly odd stands out on the technical side in the
kernel updates for last week - rc4 looks fairly average in size for
this stage in the release cycle, and all the other statistics look
pretty normal too.
We've got roughly two thirds driver fixes (gpu and networking look to
be the bulk of it, but there's smaller changes all over in various
driver subsystems), with the rest being the usual mix: core
networking, perf tooling updates, arch updates, Documentation, some
filesystem, vm and minor core kernel fixes.
So it's all fairly small and normal for this stage. As usual, I'm
appending the shortlog at the bottom for people who want to get an
overview of the details without actually having to go dig in the git
The one change that stands out and merits mention is the code of
[ And here comes the other, much longer, part... ]
Which brings me to the *NOT* normal part of the last week: the
discussions (both in public mainly on the kernel summit discussion
lists and then a lot in various private communications) about
maintainership and the kernel community. Some of that discussion came
about because of me screwing up my scheduling for the maintainer
summit where these things are supposed to be discussed.
And don't get me wrong. It's not like that discussion itself is in
any way new to this week - we've been discussing maintainership and
community for years. We've had lots of discussions both in private and
on mailing lists. We have regular talks at conferences - again, both
the "public speaking" kind and the "private hallway track" kind.
No, what was new last week is really my reaction to it, and me being
perhaps introspective (you be the judge).
There were two parts to that.
One was simply my own reaction to having screwed up my scheduling of
the maintainership summit: yes, I was somewhat embarrassed about
having screwed up my calendar, but honestly, I was mostly hopeful that
I wouldn't have to go to the kernel summit that I have gone to every
year for just about the last two decades.
Yes, we got it rescheduled, and no, my "maybe you can just do it
without me there" got overruled. But that whole situation then
started a whole different kind of discussion. And kind of
incidentally to that one, the second part was that I realized that I
had completely mis-read some of the people involved.
This is where the "look yourself in the mirror" moment comes in.
So here we are, me finally on the one hand realizing that it wasn't
actually funny or a good sign that I was hoping to just skip the
yearly kernel summit entirely, and on the other hand realizing that I
really had been ignoring some fairly deep-seated feelings in the
It's one thing when you can ignore these issues. Usually it’s just
something I didn't want to deal with.
This is my reality. I am not an emotionally empathetic kind of person
and that probably doesn't come as a big surprise to anybody. Least of
all me. The fact that I then misread people and don't realize (for
years) how badly I've judged a situation and contributed to an
unprofessional environment is not good.
This week people in our community confronted me about my lifetime of
not understanding emotions. My flippant attacks in emails have been
both unprofessional and uncalled for. Especially at times when I made
it personal. In my quest for a better patch, this made sense to me.
I know now this was not OK and I am truly sorry.
The above is basically a long-winded way to get to the somewhat
painful personal admission that hey, I need to change some of my
behavior, and I want to apologize to the people that my personal
behavior hurt and possibly drove away from kernel development
I am going to take time off and get some assistance on how to
understand people’s emotions and respond appropriately.
Put another way: When asked at conferences, I occasionally talk about
how the pain-points in kernel development have generally not been
about the _technical_ issues, but about the inflection points where
development flow and behavior changed.
These pain points have been about managing the flow of patches, and
often been associated with big tooling changes - moving from making
releases with "patches and tar-balls" (and the _very_ painful
discussions about how "Linus doesn't scale" back 15+ years ago) to
using BitKeeper, and then to having to write git in order to get past
the point of that no longer working for us.
We haven't had that kind of pain-point in about a decade. But this
week felt like that kind of pain point to me.
To tie this all back to the actual 4.19-rc4 release (no, really, this
_is_ related!) I actually think that 4.19 is looking fairly good,
things have gotten to the "calm" period of the release cycle, and I've
talked to Greg to ask him if he'd mind finishing up 4.19 for me, so
that I can take a break, and try to at least fix my own behavior.
This is not some kind of "I'm burnt out, I need to just go away"
break. I'm not feeling like I don't want to continue maintaining
Linux. Quite the reverse. I very much *do* want to continue to do
this project that I've been working on for almost three decades.
This is more like the time I got out of kernel development for a while
because I needed to write a little tool called "git". I need to take
a break to get help on how to behave differently and fix some issues
in my tooling and workflow.
And yes, some of it might be "just" tooling. Maybe I can get an email
filter in place so at when I send email with curse-words, they just
won't go out. Because hey, I'm a big believer in tools, and at least
_some_ problems going forward might be improved with simple
I know when I really look “myself in the mirror” it will be clear it's
not the only change that has to happen, but hey... You can send me
suggestions in email.
I look forward to seeing you at the Maintainer Summit.
- Linux 4.19 Had A Very Exciting First Week Of New Features(Aug 20, 2018)
- Linux 4.19 rc1(Aug 27, 2018)
- Linux 4.19 rc2(Sep 04, 2018)
- Linux 4.19-rc4 released, an apology, and a maintainership note(Sep 16, 2018)
- Linux 4.19 rc5(Sep 23, 2018)
- Linux 4.19 rc6(Sep 30, 2018)
- Linux 4.19 rc7(Oct 07, 2018)
- Linux 4.19 rc8(Oct 15, 2018)
- Linux 4.19 Released(Oct 22, 2018)
- Linux 4.19 Improves Containers, Latency and Networking for the Long Term(Oct 22, 2018)