Re: [cip-dev] 4.4.302 is going to be last 4.4 release

[Jan Kiszka <jan.kiszka@siemens.com>]

On 03.02.22 08:13, nobuhiro1.iwamatsu@toshiba.co.jp wrote:
> Hi Pavel,
>> -----Original Message-----
>> From: cip-dev@lists.cip-project.org <cip-dev@lists.cip-project.org> On
>> Behalf Of Pavel Machek
>> Sent: Wednesday, February 2, 2022 6:33 AM
>> To: jan.kiszka@siemens.com; cip-dev@lists.cip-project.org
>> Subject: [cip-dev] 4.4.302 is going to be last 4.4 release
>>
>> Hi!
>>
>> Greg says:
>>
>> # Message-Id: <20220201180822.148370751@linuxfoundation.org>
>> # Subject: [PATCH 4.4 00/25] 4.4.302-rc1 review # ...
>> # NOTE!  This is the proposed LAST 4.4.y kernel release to happen under # the
>> rules of the normal stable kernel releases.  After this one, it will # be marked
>> End-Of-Life as it has been 6 years and you really should know # better by now
>> and have moved to a newer kernel tree.  After this one, no # more security fixes
>> will be backported and you will end up with an # insecure system over time.
>> # ...
>> # Responses should be made by Thu, 03 Feb 2022 18:08:10 +0000.
>> # Anything received after that time might be too late.
>>
>> (He sometimes releases kernels before the deadline).
>>
>> We may want to make any announcements now or just after 4.4.302 is
>> released... so I guess we should start working on suitable wording.
>>
>> Something like:
>>
>> CIP project is committed to maintain 4.4.x kernel till January of 2027 [1]. We are
>> maintaining -cip branch [2], that is stable kernel with about
>> 1000 of patches to support our reference hardware [3] and -cip-rt branch, with
>> is merge of -rt and -cip trees.
>>
>> If you for some reason need 4.4.x with bug and security fixes, and are running
>> similar hardware to our reference hardware (x86-64 and armv7), -cip tree may
>> be good base for that work. Testing of the -cip tree is welcome, as is joining the
>> CIP project.
>>
>> [1] https://wiki.linuxfoundation.org/civilinfrastructureplatform/start
>> [2]
>> https://git.kernel.org/pub/scm/linux/kernel/git/cip/linux-cip.git/log/?h=linu
>> x-4.4.y-cip-rt
>> [3]
>> https://wiki.linuxfoundation.org/civilinfrastructureplatform/ciptesting/ciprefe
>> rencehardware
> 
> Thank you for taking up the issue. I think the content is fine.

Looks good to me as well.

Given that 4.4 is now history and Greg even mentioned CIP in his
discontinuation message [1] but said that we would only "consider" to
continue: Let's follow up on his post, only referring to the regular
linux-4.4.y-cip for now. Who of you two could do that?

> BTW, do you have any future information about the RT kernel team?
> We may also need to check the RT patch.
> If you don't have the information, I'll ask the RT team about this.
> 

Why should 4.4-rt continue if its former upstream retired?

Jan

[1] https://lkml.org/lkml/2022/2/3/91

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