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[Bug 1584163] Re: cgroup namespace update


This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
xenial' to 'verification-done-xenial'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!

** Tags added: verification-needed-xenial

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  cgroup namespace update

Status in linux package in Ubuntu:
Status in linux source package in Xenial:
  Fix Committed

Bug description:
   During xenial cycle we applied a patch (and a followon fix for criu)
  to fix a usability problem with cgroup namespaces and /proc/self/mountinfo.
  Since then, the approach to fix it upstream has changed.  Please revert
  the two nsroot patches currently in xenial and yakkety, and replace them
  with the new patches.

  One or the other of these patchsets suffices for docker in lxd to work.
  The patchset being reverted required a docker patch, the new one does
  not.  Docker cannot work inside lxd with neither patchset.

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