Kernel livepatch infrastructure in Ubuntu Server?

Asked by Theodotos Andreou

It has been announced that the livepatch infrastructure has been merged to the official Linux kernel tree. This is a system that can patch a live kernel without the need for a reboot. It will be available on the 3.20 kernel tree.

https://lkml.org/lkml/2015/2/9/534
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1d9c5d79e6e4385aea6f69c23ba543717434ed70

Are there any thoughts on implementing this on the Ubuntu Server?

Sorry for using Bugs for this suggestion but a guy in Answers suggested I should talk to you.

https://answers.launchpad.net/ubuntu/+question/261990

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.16.0-30-generic 3.16.0-30.40
ProcVersionSignature: Ubuntu 3.16.0-30.40-generic 3.16.7-ckt3
Uname: Linux 3.16.0-30-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: theodotos 3124 F.... pulseaudio
 /dev/snd/controlC0: theodotos 3124 F.... pulseaudio
 /dev/snd/controlC1: theodotos 3124 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri Feb 13 08:27:27 2015
HibernationDevice: RESUME=UUID=12371aba-1039-4dae-9c28-d1a1140c9707
InstallationDate: Installed on 2014-11-03 (101 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: Apple Inc. MacPro5,1
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-30-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.16.0-30-generic N/A
 linux-backports-modules-3.16.0-30-generic N/A
 linux-firmware 1.138.1
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
 Feb 13 08:22:42 adm01mc604 kernel: [146996.108465] usb 2-1.4: 1:1: cannot get freq at ep 0x4
 Feb 13 08:22:42 adm01mc604 kernel: [146996.111453] usb 2-1.4: 1:1: cannot get freq at ep 0x4
 Feb 13 08:25:21 adm01mc604 kernel: [147155.241495] usb 2-1.4: 1:1: cannot get freq at ep 0x4
 Feb 13 08:25:21 adm01mc604 kernel: [147155.244492] usb 2-1.4: 1:1: cannot get freq at ep 0x4
dmi.bios.date: 10/07/10
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MP51.88Z.007F.B03.1010071432
dmi.board.asset.tag: 0
dmi.board.name: Mac-F221BEC8
dmi.board.vendor: Apple Inc.
dmi.chassis.type: 7
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F221BEC8
dmi.modalias: dmi:bvnAppleInc.:bvrMP51.88Z.007F.B03.1010071432:bd10/07/10:svnAppleInc.:pnMacPro5,1:pvr0.0:rvnAppleInc.:rnMac-F221BEC8:rvr:cvnAppleInc.:ct7:cvrMac-F221BEC8:
dmi.product.name: MacPro5,1
dmi.product.version: 0.0
dmi.sys.vendor: Apple Inc.

Question information

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Alberto Salvia Novella (es20490446e) said :
#1

This is not a bug, but a question to developers.

Revision history for this message
Launchpad Janitor (janitor) said :
#2

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

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林博仁(Buo-ren, Lin) (buo-ren-lin) said :
#3

I have the same question