SUSE Develops New Way Of Live-Patching The Kernel
Written by Michael Larabel in SUSE on 3 February 2014 at 05:59 PM EST. 3 Comments
SUSE has announced they have developed a new way of live-patching a running kernel to avoid having to reboot the system when upgrading to the latest kernel version. There's been Ksplice as the leading means of live-upgrading a kernel but SUSE hopes their kGraft solution will be the superior mainline solution.

The SUSE press release reads, "The problem solvers at SUSE have designed and developed a technology to deliver live, run-time patching of the Linux kernel, making it easier for IT staff to install critical security and other patches without system downtime. Called kGraft, the open source solution is currently in the functional prototype stage and is planned to be submitted upstream to the Linux kernel within the next two months."

SUSE will be releasing the kGraft code in March and they are hoping for upstream acceptance into the mainline Linux kernel. Besides the kernel bits there's also GCC compiler bits needed to that SUSE will release under the GPLv3. For those developers wanting a more technical understanding how this Linux kernel live-patching kGraft solution works, read this SUSE.com conversation.
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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 Twitter or contacted via MichaelLarabel.com.

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