[Bug 1317179] Re: lxc containers fail to start in trusty with newer kernels

[Stéphane Graber]

Sorry Martin, I didn't see this bug until after I fixed it...

So I added both net_cls and net_prio to utopic (jso we have them all
listed just in case), would be great if you could update the git branch
to match.


I'm also doing the SRU to trusty now.

** Changed in: systemd (Ubuntu)
       Status: Fix Committed => Fix Released

** Changed in: systemd (Ubuntu Trusty)
     Assignee: (unassigned) => Stéphane Graber (stgraber)

** Changed in: systemd (Ubuntu)
     Assignee: (unassigned) => Stéphane Graber (stgraber)

** Changed in: systemd (Ubuntu Trusty)
       Status: Triaged => In Progress

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https://bugs.launchpad.net/bugs/1317179

Title:
  lxc containers fail to start in trusty with newer kernels

Status in “systemd” package in Ubuntu:
  Fix Released
Status in “systemd” source package in Trusty:
  In Progress

Bug description:
  When running a trusty userspace with a newer kernel (e.g. 3.15-rc4),
  attempting to start a container fails:

  $ lxc-start -n p2
  lxc_container: call to cgmanager_create_sync failed: invalid request
  lxc_container: Failed to create net_cls:p2
  lxc_container: Error creating cgroup net_cls:p2
  lxc_container: failed creating cgroups
  lxc_container: failed to spawn 'p2'

  Iiuc, this seems to be caused new cgroups in the kernel which aren't
  enabled for systemd but that lxc tries to configure anyway.

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