Hi. I'm a software engineer for consumer embedded products. I'm considering this topic on my own. It means that it is not my company's opinion.
TL;DR - The stakeholders and positions are different about this topic. - This topic is the fork cost issue in my understanding. ## Point view Ideally, all people use the latest stable version. My experience says software expiration date is for 2-4 years. If it's over 5 years, the migration cost is large. This topic is the fork cost issue in my understanding. If the LTS version is so old. the cost is huge by changing API and somethings. Who spent the cost? stable kernel maintainers, sub system maintainers and related people. It is not sustainable. I agree linux kernel community. I'd say it is not good news for distributors. In other words, This issue is fork cost vs upgrade cost. I've noticed that this topic has some stakeholders and positions. - The kernel maintainer of linux distribution - SoC vendors engineers and BSP kernel users - The in-house linux distributor for consumer products (like NAS, Camera and something) It's important point is that most users use just linux distribution and bsp kernel in fact. ## Time Range - Debian releases every 2 years normally. Support time is 3 years. - Ubuntu LTS releases every 4 years. Support time is 4 years. - SoC tape out is for 2~5 years since design. How to maintain the last 1 or 2 years in linux distributors? I think a good idea what ubuntu's HWE kernel. It's like rolling update for 6 months. ## BSP kernel As you know. BSP kernel is given by SoC vendors. I could get data sheets and application notes of SoC when I was my first career. However, vendors do not recently. It's just gives BSP kernel. It means that it's difficult to mainalinnes by SoC users.Do BSP users have options after EoL? (I know some vendors try to mainline.) ## Others This topic is not only linux kernel. all oss assets in my understanding. linux is great. it provides stable versions and life cycle clearly . Anyway, I will focus on discussing linux kernel in this study group. Sorry for not having a clear idea and opinion.It's similar dump ideas. Anyway, I look forward to discussing it tomorrow. Regards, Matsumoto 2024年3月24日(日) 2:04 Naoki Matsumoto <nekom...@gmail.com>: > > To: 皆様 > こんばんは、 nekomatu です。 > > 茂田さん、主催のほどありがとうございます。 > > Linaro でも似たような Webinner があるので共有します。 > https://www.linaro.org/events/long-term-support-lts-for-the-linux-kernel-what-s-changing-now/ > > 他にも議論しましょうとかをどっかで見たような…。 > 見かけたら皆様も共有頂けると嬉しいです。 > > > 2024年3月19日(火) 8:37 茂田井寛隆 <hirotaka.mo...@miraclelinux.com>: > > > > To: CE Linuxコミュニティの皆さま > > BCC: 個別に声がけいただいた方 > > > > (English is in the last of this email) > > > > サイバートラスト 茂田井です。お世話になります。 > > 先日3/8(金)に開催した Japan Technical Jamboree II #2 の1セッションでお話した[*1] > > Linux Kernel LTS 勉強会をさっそく開催したいと思います。 > > 初回ですので、簡単な自己紹介して雑談しつつ、情報交換や進め方を話し合いたいと思います。 > > 資料を交えて話していただくと助かります。 > > > > 日時：3月29日 (金) 16:00-18:00 (15:30開場) > > 場所：東京都港区六本木1丁目9-10アークヒルズ仙石山森タワー 35階 > > サイバートラスト社 応接室2 > > 参加締め切り：3/28(木)15時 > > > > ご連絡事項： > > ・入館申請が必要となりますので、お名前・会社名をお知らせください。 > > ・オンラインでのご参加を希望される方は、お名前・会社名・メールアドレスを > > お知らせください。当日の午前中にGoogle MeetのURLをご連絡いたします。 > > ・途中参加、途中退席、構いません。 > > ・ご都合が読めない方は、入館申請とオンラインの両方を申請いただいても構いません。 > > ---- > > 茂田井宛 (hirotaka.mo...@miraclelinux.com) > > お名前： > > 会社名： > > メールアドレス：（オンライン参加の方は必須） > > ご参加方法：会場で ・ オンラインで > > ---- > > > > *1: > > https://speakerdeck.com/hiromotai/japan-technical-jamboree-ii-number-2-2024-03-08-linux-kernel-lts-mian-qiang-hui-hazimemasu > > > > よろしくお願いします。 > > ------ > > Dear CE-Linux Community, > > > > I would like to announce that the Linux Kernel LTS Study Group in Japan I > > proposed[*1] > > in a session of Japan Technical Jamboree II #2 on March 8 will be started. > > > > - 16:00-18:00 JST, Mar 29th. > > - Location: ARK Hills Sengokuyama Mori Tower 35F, 1-9-10 Roppongi, > > Minato-ku, > > Tokyo 106-0032, Japan (Cybertrust Japan Head Office) > > > > Please let me know your name and company name as need to apply for entrance > > by March 28. If you want to participate remotely, please let me know your > > name, > > company nameand e-mail address. I will inform you the URL of web-meeting. > > > > Thanks! > > > > -- > > Hirotaka Motai <hirotaka.mo...@miraclelinux.com> > > Cybertrust Japan Co., Ltd. > > -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#1304): https://lists.celinuxforum.org/g/Celinux-dev/message/1304 Mute This Topic: https://lists.celinuxforum.org/mt/105015141/21656 Group Owner: celinux-dev+ow...@lists.celinuxforum.org Unsubscribe: https://lists.celinuxforum.org/g/Celinux-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
