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Message #69660
[Bug 1436723] Re: Regression: Nested LXC is broken on Vivid
This seems to be fixed in vivid with lxc 1.1.2:
tribaal@vivid-test:~$ apt-cache policy lxc
lxc:
Installed: 1.1.2-0ubuntu1
Candidate: 1.1.2-0ubuntu1
Version table:
*** 1.1.2-0ubuntu1 0
500 http://ch.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages
100 /var/lib/dpkg/status
tribaal@vivid-test:~$ apt-cache policy lxc-templates
lxc-templates:
Installed: 1.1.2-0ubuntu1
Candidate: 1.1.2-0ubuntu1
Version table:
*** 1.1.2-0ubuntu1 0
500 http://ch.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages
100 /var/lib/dpkg/status
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https://bugs.launchpad.net/bugs/1436723
Title:
Regression: Nested LXC is broken on Vivid
Status in lxc package in Ubuntu:
Confirmed
Bug description:
The nested LXC functionality seems to be broken on Vivid, at least
with the following setup:
Vivid (Host) -> Trusty (Outer LXC) -> Trusty (Inner LXC)
What happens:
The Inner LXC start command fails when trying to start with: http://pastebin.ubuntu.com/10682639/
( 631 cgroup error? 100 cgroups with this name already running seems to be the revelant error message).
What is expected to happen:
The inner LXC start command is expected to succeed and result in a
running nested container.
Steps to reproduce:
- Install vivid server daily, update.
- sudo apt-get install lxc
- sudo lxc-create -n outer -t ubuntu -- --release trusty --mirror=http://ch.archive.ubuntu.com/ubuntu -b $USER
- sudo su
- echo 'lxc.aa_profile = lxc-container-default-with-nesting' >> /var/lib/lxc/outer/config
- exit
- sudo lxc-start -n outer
- (SSH to outer)
- sudo apt-get update && sudo apt-get dist-upgrade
- sudo apt-get install lxc
- sudo lxc-create -n inner -t ubuntu -- --release trusty --mirror=http://ch.archive.ubuntu.com/ubuntu -b $USER
- sudo lxc-start -n inner
Fails with: http://pastebin.ubuntu.com/10682639/
Enabling debug logs for this action yields: http://pastebin.ubuntu.com/10682658/
Control: The exact same scenario works on trusty and utopic. Tested by
spinning up server installs (from isos) in KVMs and verifying
manually.
Any further log or information available on request, including KVM
images demonstrating the problem.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: lxc 1.1.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-10.10-generic 3.19.2
Uname: Linux 3.19.0-10-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.16.2-0ubuntu4
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Mar 26 08:43:56 2015
InstallationDate: Installed on 2015-03-12 (13 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150306)
SourcePackage: lxc
UpgradeStatus: No upgrade log present (probably fresh install)
defaults.conf:
lxc.network.type = veth
lxc.network.link = lxcbr0
lxc.network.flags = up
lxc.network.hwaddr = 00:16:3e:xx:xx:xx
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References