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Kernel release cycle • Release cycle of Linux kernel is about 65days
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Choosing Linux for New Use Cases
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- 1 Intro
- 2 Who am I Tsugikazu SHIBATA, NEC • Founder and project lead of Long Term Support Initiative (LTSI) that will help industry people to use Long Term Stable kernel with helpful activities. • Involved Lin…
- 3 Linux is running everywhere Linux is running for multiple use cases - NYSE, London, Tokyo Stock Exchange - Amazon, Google, Facebook, Twitter - Android, TV, Camera, Router, Car navigation • Supports m…
- 4 Linux development policy • Upstream is only the place to accept the patches - Reviewed by skilled maintainer - Tested with other proposals to confirm no conflicts - Follow the development process
- 5 Linux Development process • Just after the release of 4., two weeks of merge window will be opened for proposal of new features • After 2 weeks of merge window, -rch will be released and the stabiliz…
- 6 Kernel release cycle • Release cycle of Linux kernel is about 65days
- 7 Status of Latest Linux kernel Again • Latest released Kernel: 4.8 • Current Stable Kernel: 4.8.1 . Current development kernel in the merge window for 4.9-rci
- 8 LTS: Long Term Stable Kernel • Kernel tree continue to back port bug and Security fixes • Extended maintenance period for stable kernel • Pick one version per year and maintain 2 years
- 9 Why LTS? . Only the tree to get fixes from the community • In the real use case, tested/confirmed kernel is important, less important for new features • Fixes will be released # of times and should b…
- 10 Open Source community to create and maintain Linux kernel for long term -Based on LTS - Add another chance to include further patches on
- 11 LTSI Add vendor required features Share status, info, problem among industry people Huge testing by contributors Auto test framework Provide help to developer for upstream LTS Release 1 version/year,…
- 12 History of LTSI • Established 2011 - 5 yeas now -Started for stable Kernel for Android • Integrated by Yocto (2012, May) • Have had a workshop/session to share information and discuss issue among ind…
- 13 Shape of LTSI Project • Small staff to coordinate workshop, session at LF conference • Maintainer: Greg Kroah-Hartman, Fellow of Linux Foundation • Working with upstream Linux Community • Keeping neu…
- 14 LTSI as a part of Distro • Yocto project has a normal option to use LTSI - You can create your own distribution with LTSI - Yocto is doing their own tests for the distribution with LTSI. Both build d…
- 15 Fuego: Auto test package • Jenkins based auto test packages (using Docker) - Distributed under 3-clause BSD license - Over 50 test packages included with Web based
- 16 Use Case: Automotive Grade Linux • Developing reference implementation called UCB (Unified Code Base) distribution v1.0 using LTSI 3.14 kernel - AGL/UCB is using Yocto and LTSI • Have had a demonstra…
- 17 Use Case: Civil Infrastructure Platform • Established Feb 2016, by Toshiba, Hitachi, Siemens and others to create reference distribution for Civil infrastructure • One of major requirement includes S…
- 18 LTSI Schedule expectation • Kernel Summit 2016 will be the time to decide LTS version
