KDBUS & Systemd Now Yields A Working System
Written by Michael Larabel in systemd on 27 December 2013 at 12:08 PM EST. Add A Comment
Open-source developers this week achieved a pleasant late Christmas present for Fedora users of having a working system with using the in-development Linux kernel DBus implementation (KDBUS) paired with the latest systemd code can now yield a booting system.

Going back years there's been talk and early work on bringing DBus into the Linux kernel and since earlier this year the work has been progressing faster with Greg Kroah-Hartman (and others) working on KDBUS while the user-space support code has been going into systemd. With the latest code as of this week, the newest KDBUS and systemd code can yield a booting Fedora 20 system. This code should work on other modern Linux distributions too but was just tested against F20 given that most of the systemd developers involved are employed by Red Hat.

Lennart Poettering wrote on the systemd mailing list, "We reached a major milestone in kdbus development today. We have all the userspace and compat stuff ready to make a full Fedora system boot cleanly and work fine with kdbus on the backend. With current git kdbus and current git systemd things should just work."

Lennart went on to share many details via a Google+ post. The systemd side of the code is considered "pretty much complete" with the exception of user-space policy enforcement.

One of the benefits of having DBus IPC message bus system in kernel-space is less context sqitches needed compared to the traditional user-space daemon.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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