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[Christopher Townsend <christopher.townsend@xxxxxxxxxxxxx>]

I've been trying to capture a log of the failure when running lxc-attach
and it seems to cause just enough delay to get by the race.  Also, it
does not always occur, but more time than not, the error happens leading
more credence to this being a race.  I've attached the config I use for
the container.

** Attachment added: "config"
   https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1452451/+attachment/4393645/+files/config

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https://bugs.launchpad.net/bugs/1452451

Title:
  failed to change apparmor profile to lxc-container-default-with-
  nesting

Status in lxc package in Ubuntu:
  Incomplete

Bug description:
  I develop and maintain the unity8-lxc package (lp:unity8-preview-lxc)
  which uses an unpacked Ubuntu Next Desktop ISO as a privileged rootfs.
  It uses the lxc-container-default-with-nesting apparmor profile since
  we'd like to support containers within this.

  When I try to do a lxc-start. lxc-wait(RUNNING), and lxc-attach for
  the first time in my setup script, I get the following error:

  lxc_container: lsm/apparmor.c: apparmor_process_label_set: 183 No such
  file or directory - failed to change apparmor profile to lxc-
  container-default-with-nesting

  I believe this is a race because if I introduce a sleep of say 0.5
  seconds between the lxc-wait and lxc-attach, then it works.  It also
  works for any subsequent lxc-start/lxc-wait/lxc-attach after this
  failure.

  Please let me know if I can provide more info.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: lxc 1.1.2-0ubuntu3
  ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
  Uname: Linux 3.19.0-16-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed May  6 16:47:14 2015
  InstallationDate: Installed on 2013-03-18 (779 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  SourcePackage: lxc
  UpgradeStatus: Upgraded to vivid on 2014-10-20 (198 days ago)

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