1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Kpatch Gets Exposure This Week, kGraft Misses Out

Linux Events

Published on 19 August 2014 12:46 PM EDT
Written by Michael Larabel in Linux Events
Comment On This Article

This week at LinuxCon Chicago are two talks about Red Hat's Kpatch live kernel patching solution to reduce downtime. However, there aren't any scheduled talks about SUSE's kGraft solution with neither yet being in the mainline kernel.

On Thursday at the Sheraton in Chicago will be the "Kpatch Without Stop Machine" presentation by Hitachi's Masami Hiramatsu while on Friday afternoon will be "kpatch: Have Your Security And Eat It Too!" by Red Hat's Josh Poimboeuf.

Kpatch is still aiming to be an upstream Linux kernel feature for live kernel patching to reduce system downtime. Red Hat has already declared their solution "stable and useful" while being 100% self-contained with support for Fedora, Ubuntu, Debian, Arch, and (unofficially) on Red Hat Enterprise Linux 7 and other EL7 variants.

Kpatch features support for patch rollback, patch on reboot, stacking multiple patches, atomic patch upgrades, module patching, and other functionality, but right now it only works for about ~80% of the CVE security patches against the kernel and will only work on Intel/AMD x86_64 kernels.

Before those new to live kernel patching think this will mean never ever rebooting your system again or you'll be able to jump to new major revisions of the kernel without reboots, Red Hat cautions that Kpatch requires a human to analyze each patch prior to using it against Kpatch to ensure it's safe to apply in a live patching context -- the same safety procedure is also applicable to kGraft and Ksplice.

Those wishing to learn more about Kpatch but are unable to make it to LinuxCon North America this week in Chicago, the two Kpatch presentation slides have already been uploaded here and here.

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 .
Latest Linux Hardware Reviews
  1. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. Counter-Strike: Global Offensive NVIDIA/AMD Benchmarks On Linux
  2. Running Fedora 20 On Intel's Core i7 Haswell-E Platform
  3. A Tour Of The New Phoronix Office
  4. 7-Way Linux Desktop Gaming Comparison On Ubuntu 14.10
Latest Linux News
  1. The Features Coming For Fedora 21
  2. Counter-Strike: Global Offensive Starts Rolling Out To Linux Users
  3. The Gestures Support Of GNOME 3.14
  4. Linux 3.17 Has Basic Support For The Xbox One Controller
  5. openSUSE 13.2 Beta Still Using Btrfs By Default, & KDE Plasma 5 For Testing
  6. GTK+ 3.14 Brings Much Better Wayland Support, Multi-Touch, New Theme
  7. DisplayPort Comes To USB's Type-C Connector
  8. NSS Updated On Ubuntu 12.04/14.04 To Allow Netflix Support
  9. Linux 3.17-rc6 Released; Linux 3.17 Final Might Come In One Week
  10. X.Org Server 1.16.1 Released
Latest Forum Discussions
  1. Uselessd: A Stripped Down Version Of Systemd
  2. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  3. State of Nouveau now and in the near future?
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. Wasteland 2 Officially Launched Today, Including For Linux Gamers
  6. NVIDIA GTX 770/780 -works ?
  7. New stress testing utility for GPU's
  8. How to get Catalyst 14.4 working on Ubuntu 14.04