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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 1410852

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

** Tags added: trusty

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https://bugs.launchpad.net/bugs/1410852

Title:
  restarting container with a vlan interface results in kernel stack
  trace

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

Bug description:
  Stopping a container and starting it again results in kernel stack
  trace with a vlan interface.

  ---8<---
  lxc.network.type = vlan
  lxc.network.flags = up
  lxc.network.link = p3p1
  lxc.network.vlan.id = 2
  ---8<---

  dpkg -l | grep lxc
  ii  liblxc1                             1.0.6-0ubuntu0.1                    amd64        Linux Containers userspace tools (library)
  ii  lxc                                 1.0.6-0ubuntu0.1                    amd64        Linux Containers userspace tools
  ii  lxc-templates                       1.0.6-0ubuntu0.1                    amd64        Linux Containers userspace tools (templates)
  ii  python3-lxc                         1.0.6-0ubuntu0.1                    amd64        Linux Containers userspace tools (Python 3.x bindings)

  cat /proc/cmdline 
  BOOT_IMAGE=/boot/vmlinuz-3.13.0-44-generic root=UUID=6d1fc9aa-735c-4e61-ae1c-0a9d2587e77b ro acpi_osi=Linux acpi=force acpi_enforce_resources=lax i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 i915.semaphores=1

  
  Snipplet from stack trace:
  ---8<---
  [35188.374621] WARNING: CPU: 4 PID: 3933 at /build/buildd/linux-3.13.0/fs/sysfs/dir.c:486 sysfs_warn_dup+0x86/0xa0()
  [35188.374623] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:1c.3/0000:02:00.0/net/p3p1/upper_vlan2'
  ---8<---

  Is deconfiguration on stop of an lxc instance not working anymore?

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