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[Stefan Bader <stefan.bader@xxxxxxxxxxxxx>]

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

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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:
  Confirmed
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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