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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1401148

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1401148

Title:
  Re/starting an lxc container corrupts all network namespaces on the
  same physical host

Status in linux package in Ubuntu:
  Incomplete
Status in lxc package in Ubuntu:
  New

Bug description:
  Context: Neutron gateway north/south routing server which manages a
  large number of network namespaces; also hosts a few LXC containers
  for misc lightweight control plane services.

  Problem:  If I restart one of the lxc containers, all of the
  namespaces get corrupted in someway; attempting to exec anything in
  any namespace fails with:

  seting the network namespace "qrouter-4b575c81-39bb-439f-81e1-e59e3759a287" failed: Invalid argument
  seting the network namespace "qrouter-1f5e26df-f8c5-4246-9485-3f9df8e39c40" failed: Invalid argument
  seting the network namespace "qrouter-c3bf179e-9532-43f9-88af-752b66592cd6" failed: Invalid argument
  seting the network namespace "qrouter-3d4550ca-4de6-44e3-90b5-1b60c3d58ed1" failed: Invalid argument
  seting the network namespace "qrouter-4fc4c3c2-68bf-4954-8b32-d47d8d84086e" failed: Invalid argument
  seting the network namespace "qrouter-0890d9ea-f0c8-4e69-bf1a-4896213a82a0" failed: Invalid argument
  seting the network namespace "qrouter-0f7e0655-f84b-4aaa-82aa-75f01a59411e" failed: Invalid argument

  I also see:

  Dec 10 15:16:00 cofgod kernel: [ 4604.274359] type=1400 audit(1418224560.675:132): apparmor="DENIED" operation="mount" info="failed type match" error=-13 profile="/usr/bin/lxc-start" name="/run/netns/qdhcp-0ba77ab2-b3ee-4752-88af-b19313c10f9d/" pid=8790 comm="lxc-start" flags="rw, slave"
  Dec 10 15:16:00 cofgod kernel: [ 4604.274405] type=1400 audit(1418224560.675:134): apparmor="DENIED" operation="mount" info="failed type match" error=-13 profile="/usr/bin/lxc-start" name="/run/netns/qdhcp-25006453-2caa-4aa4-bdeb-e4822dc700d6/" pid=8790 comm="lxc-start" flags="rw, slave"
  Dec 10 15:16:00 cofgod kernel: [ 4604.274436] type=1400 audit(1418224560.675:136): apparmor="DENIED" operation="mount" info="failed type match" error=-13 profile="/usr/bin/lxc-start" name="/run/netns/qdhcp-2fec74e8-d507-4650-beb4-8da459ea0039/" pid=8790 comm="lxc-start" flags="rw, slave"
  Dec 10 15:16:00 cofgod kernel: [ 4604.274451] type=1400 audit(1418224560.675:137): apparmor="DENIED" operation="mount" info="failed type match" error=-13 profile="/usr/bin/lxc-start" name="/run/netns/qdhcp-33d8fa40-c158-4377-bc8f-d252e38d4943/" pid=8790 comm="lxc-start" flags="rw, slave"
  Dec 10 15:16:00 cofgod kernel: [ 4604.274466] type=1400 audit(1418224560.675:138): apparmor="DENIED" operation="mount" info="failed type match" error=-13 profile="/usr/bin/lxc-start" name="/run/netns/qdhcp-394517c0-e48a-43e7-8778-96c601607733/" pid=8790 comm="lxc-start" flags="rw, slave"
  Dec 10 15:16:00 cofgod kernel: [ 4604.274482] type=1400 audit(1418224560.675:139): apparmor="DENIED" operation="mount" info="failed type match" error=-13 profile="/usr/bin/lxc-start" name="/run/netns/qdhcp-41e21850-decf-49f8-97fb-cbb3aa5932e3/" pid=8790 comm="lxc-start" flags="rw, slave"
  Dec 10 15:16:00 cofgod kernel: [ 4604.274497] type=1400 audit(1418224560.675:140): apparmor="DENIED" operation="mount" info="failed type match" error=-13 profile="/usr/bin/lxc-start" name="/run/netns/qrouter-e9837293-c017-4d85-a601-cae5e83719a2/" pid=8790 comm="lxc-start" flags="rw, slave"

  In the kern.log

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: lxc 1.0.6-0ubuntu0.1
  ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
  Uname: Linux 3.13.0-35-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  Date: Wed Dec 10 15:24:45 2014
  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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