Trying Out kGraft Live Kernel Patching On Ubuntu Linux
Written by Michael Larabel in Linux Kernel on 6 June 2014 at 04:00 PM EDT. 7 Comments
KGraft is the SUSE-developed approach to live-patching the Linux kernel as another reboot-less option similar to Ksplice.

Besides kGraft and Ksplice, Red Hat coincidentally shortly after the release of Ksplice had announced Kpatch as their means of live patching a running kernel. Both Red Hat and SUSE have open-sourced their live patching mechanisms and both hope to have their solution mainlined, or some unified form of both. While no solution has been queued up for merging in the Linux 3.16 kernel, there still is a lot of interest by Linux developers in these solutions.

Canonical hasn't come out with their own live kernel patching solution (fortunately) nor taken any public side in the matter. However, kGraft is now being tested on Ubuntu with its kernel. Chris Arges, a Canonical employee that's serving as a kernel engineer, has written a blog post about using kGraft on Ubuntu. SUSE's kGraft patches were updated against the Ubuntu 14.10 "Utopic" kernel and has published a pre-built test kernel for those interested. For those interested in learning more about trying kGraft on Ubuntu can read his blog post.

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Michael Larabel is the principal author of 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 automated benchmarking software. He can be followed via Twitter or contacted via

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