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Trying Out kGraft Live Kernel Patching On Ubuntu Linux

Linux Kernel

Published on 06 June 2014 04:00 PM EDT
Written by Michael Larabel in Linux Kernel
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.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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