Linux 3.3 released, integrates Android code

Android can now boot from the Linux kernel

Version 3.3 of the Linux kernel, now available after a short delay, includes kernel code from Android as well as an upgrade of networking features and support for an additional processing architecture.

The latest version of the Linux kernel was supposed to have been released about a week ago but at the time another release candidate was needed to fix issues related to networking, memory management and drivers. That work is now done, and the new kernel is available for download, Linus Torvalds, creator of the operating system, announced Sunday.

The big news in version 3.3 is that Android features are again part the Linux kernel, after the two camps had a falling out a few years ago.

The integration work will allow a developer to use the Linux kernel to run an Android system; to develop drivers for either the Android kernel or the Linux kernel; and to reduce or eliminate the burden of maintaining independent patches from release to release for Android kernel developers, according to the Android Mainlining Project.

In future versions of the kernel, the work on integrating Linux and Android will include the addition of better power-management features, according to Linux kernel maintainer Greg Kroah-Hartman.

But Android code isn't the only addition in version 3.3 of the Linux kernel.

The kernel also integrates Open vSwitch, which is a multilayer virtual switch licensed under the open source Apache 2.0 license. It can forward traffic among different virtual machines on the same physical host and traffic between virtual machines and the physical network.

Linux can now also run on Texas Instruments' c64x and c66x processors, which can be used in, for example, printers, mobile base stations and medical diagnostics equipment, according to the chip maker.

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Mikael Ricknäs

IDG News Service
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