Live-Patching Doesn't Change Much In Linux 4.1
Written by Michael Larabel in Linux Kernel on 15 April 2015 at 09:10 AM EDT. Add A Comment
LINUX KERNEL --
The live kernel patching support was one of the big additions to what became Linux 4.0, but with Linux 4.1 there aren't many improvements to show for the past cycle.

Jiri Kosina of SUSE is maintaining the kernel's livepatching code and explained in the 4.1 pull request, "These are mostly smaller things that got accumulated during the development cycle. The unified solution is still being worked on and is not mature enough for 4.1 yet."

The unified solution is for fitting the needs of both SUSE's kGraft and Red Hat's Kpatch live-patching solutions that were previously presented last year.

Of the work merged for Linux 4.1, the main addition would be support for the s390 architecture for live-patching. Hopefully there will be more for live kernel patching in Linux 4.2.

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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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