Tag Archives: Greg Kroah Hartman

LTSI v3.4 Released

By Noriaki

Part of supporting the demand for Linux in consumer electronics is ensuring there is a common Linux base that is maintained and supported for the typical lifetime of a consumer device, usually two years, and that supports a large variety of consumer electronics products. The Linux kernel is released at such a rapid pace that until now, device makers were doing significant back-porting, bug testing and driver development on their own, which carried substantial cost in terms of time-to-market, as well as development and engineering effort to maintain those custom kernels.

The Linux Foundation’s Consumer Electronics (CE) workgroup founded the Long Term Support Initiative (LTSI) to address this issue collaboratively. Today, the project provides for both an annual release of a Linux kernel suitable for supporting the lifespan of consumer electronics products and regular updates of those releases for two years. Linux kernel maintainer Greg Kroah-Hartman oversees this maintenance and the LTSI kernel tree for this industry-wide project created and supported by Hitachi, LG Electronics, NEC, Panasonic, Qualcomm Atheros, Renesas Electronics Corporation, Samsung Electronics, Sony and Toshiba.

This week the CE working group is releasing the LTSI 3.4 kernel. It is based on the Linux 3.4.25 kernel release and includes a number of backported features from newer releases.

Highlights from today’s release include:

* The Contiguous Memory Allocator (CMA), which is extremely useful for embedded devices that have very limited hardware resources and will better handle the large memory requirements of multimedia applications. CMA originally was merged into the 3.4.0 kernel release, but its functionality was quite limited. Since then, the feature has been significantly improved in the kernel.org releases and those fixes have been added to the LTSI 3.4 kernel release. For more information about this kernel option, please visit LWN.net.

* AF_BUS, a kernel-based implementation of the D-Bus protocol. This feature was created for systems that required a faster D-Bus speed than the existing userspace method could provide, specifically the automotive entertainment systems. For more information about this feature, please see LWN.net.

* CoDel (controlled delay), a transmission algorithm that optimizes TCP/IP network buffer control, is backported for LTSI 3.4. This is a feature used to help control the “buffer bloat” problem that has been identified by the networking community as an issue that all devices need to be aware of. This feature was backported from the 3.5.0 kernel.org release. For more information about it, please see this LWN.net post.

Platform specific board support was backported from newer kernel versions, allowing the Armadillo 800, AT91, kzm9d, kzm9g, and Marzen platforms to work properly with this release.

For more information about LTSI and the latest release, please visit the LTSI website.

Source: FULL ARTICLE at Linux Foundation

Please Join Us: The 100 Linux Tutorial Campaign

By jennifercloer


100 Linux Tutorials

We know that the Linux community is growing. It’s getting bigger every year as it moves across industries and geographies. Our Who Writes Linux paper documents each year the increasing number of contributors, sponsors and the pace of development. Only the collaborative development model can deliver and support this kind of rapid growth.

The Linux development community is responsible for some of the most important technology breakthroughs of the decade. Just take a look at the recent Consumer Electronics Show (CES) to see the kinds of products and innovations that Linux is making possible. To sustain this virtuous cycle, we need to spread knowledge and information about Linux to the masses. There are thousands of “newbies” coming to Linux every day. We see them online, at our events, in our Linux training courses and joining The Linux Foundation as individual members.

But how can we as a community make sure that developers and IT managers new to Linux have the basic information they need to start contributing and benefiting from Linux right now? We’ve come up with one way we think we can help, but we can’t do it alone.

The 100 Linux Tutorials Campaign is a yearlong effort to build a collective knowledge base of Linux videos.

We invite you to share your knowledge with users and developers new to Linux. You can help remove barriers to learning Linux and transfer expertise around the globe. This contribution to Linux is a very important one. We know that together we can achieve our goal of collecting 100 Linux tutorials this year and making learning Linux as easy as clicking the mouse. We’ve already had contributions from Linux kernel developer Greg Kroah-Hartman and other members of the community.

You can share original video tutorials you’ve created, or you can upload Linux tutorial videos that you’ve found helpful to the Linux.com video forum from other locations. As we begin to receive the videos, we will feature and promote the best ones. This will spread the information fast and give the video creators (you!) exposure in the community.

We’re planning a celebration for when together we hit the 100 milestones. Stay tuned for more details as we edge closer to the triple digit.

Please join us and be a part of this worldwide effort. Upload your Linux tutorial now.

Source: FULL ARTICLE at Linux Foundation