Public bug reported: 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 ** Affects: lxc (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apparmor apport-bug vivid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1436723 Title: Regression: Nested LXC is broken on Vivid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1436723/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
