** Description changed:

  The snapd build on trusty for amd64 fails with the following error:
  """
  make[2]: Entering directory `/tmp/snapd-2.20.1~14.04/cmd/snap-confine/tests'
  ...
  PASS: test_restrictions_working
  FAIL: test_restrictions_working_args
  """
  (see https://launchpad.net/ubuntu/+source/snapd/2.20.1~14.04/+build/11759913)
  
  The same build works for i386 and armhf.
  
  I can reproduce this in a trusty chroot, upon further investigation it looks
- like the version of libseccomp (2.1.1) in trusty-proposed is the culprit. 
+ like the version of libseccomp (2.1.1) in trusty-proposed is the culprit.
  
  When I upgrade:
  """
  Upgrade: libseccomp2:amd64 (2.1.1-1ubuntu1~trusty1, 
2.2.3-2ubuntu1~ubuntu14.04.1), libseccomp-dev:amd64 (2.1.1-1ubuntu1~trusty1, 
2.2.3-2ubuntu1~ubuntu14.04.1)
  """"
  all tests run fine. It looks like an issue with seccomp argument filtering 
(bpf) on 64 bit systems.
  This https://github.com/seccomp/libseccomp/releases/tag/v2.2.1 might include 
the missing fix,
  however I have not looked in detail what patch exactly we may need.
+ 
+ Fwiw, we don't see this failure in our spread tests because the version of 
libseccomp in the image PPA is different from the version in trusty-proposed.
+ The debdiff: http://paste.ubuntu.com/23726620/

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https://bugs.launchpad.net/bugs/1653487

Title:
  seccomp argument filtering not working on trusty

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