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

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https://bugs.launchpad.net/bugs/1307829

Title:
  network namespace error

Status in “iproute” package in Ubuntu:
  New
Status in “lxc” package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  I am using latest stables lxc build from 
http://ppa.launchpad.net/ubuntu-lxc/stable/ubuntu on a OpenStack controller to 
run containers. The OpenStack is also using network  namespaces . When I boot 
the server without auto start the containers everything looks fine with the 
OpenStack network namespaces. If I boot lxc container with lxc-start the 
container starts and its networking is functioning, but network namespaces 
created before that , by OpenStack installation for example , become unusable 
with he following error:

   root@osctrl3dc02:~# ip netns exec vips ip a
   seting the network namespace failed: Invalid argument

  Here is the strace:

   open("/var/run/netns/vips", O_RDONLY)   = 4
   syscall_308(0x4, 0x40000000, 0x7fffc4d54e83, 0x7fffc4d54bf0, 0x430af0,
   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   0, 0, 0) = -1 (errno 22)

   As far as I know sys call_308 should set the namespace , but it seems
  it fails on accessing the /var/run/netns/vips

  It is strange that the permissions are altered: 
  root@osctrl3dc02:~# ls -alh /var/run/netns/vips
   ---------- 1 root root 0 Apr 14 08:48 /var/run/netns/vips

   This file have the following permission before I start the container
   -r--r--r-- 1 root root 0 Apr 12 14:01 /var/run/netns/vips

   If I destroy the vips namespace and create it again , keeping the lxc
  containers running, everything is back to normal, both containers and
  Openstack networking are working.

  Best regards,

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: iproute 20111117-1ubuntu2.1
  ProcVersionSignature: Ubuntu 3.11.0-19.33~precise1-generic 3.11.10.5
  Uname: Linux 3.11.0-19-generic x86_64
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  Date: Tue Apr 15 00:30:18 2014
  InstallationMedia: Ubuntu-Server 12.04.4 LTS "Precise Pangolin" - Release 
amd64 (20140204)
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: iproute
  UpgradeStatus: No upgrade log present (probably fresh install)

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