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[Bug 1504781] Re: lxc-test-ubuntu hangs forever in trusty-proposed with Linux 3.13.0-66: AppArmor denies /dev/ptmx mounting

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Stéphane Graber <stgraber@xxxxxxxxxxxx>
Date: Sun, 11 Oct 2015 16:59:42 -0000
Reply-to: Bug 1504781 <1504781@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

What I don't get is why the other tests aren't failing too, they all
start containers too and so should hit the exact same failure. Why one
of the last tests is the one hanging just doesn't make sense to me.

Anyway, looks like there's a way for us to reproduce this and look into
it. It may well be a kernel/apparmor regression after all.

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https://bugs.launchpad.net/bugs/1504781

Title:
  lxc-test-ubuntu hangs forever in trusty-proposed with Linux 3.13.0-66:
  AppArmor denies /dev/ptmx mounting

Status in linux package in Ubuntu:
  Invalid
Status in lxc package in Ubuntu:
  Invalid
Status in linux source package in Trusty:
  New
Status in lxc source package in Trusty:
  New

Bug description:
  We are seeing test suite failures under ADT testing with linux, linux-
  lts-utopic and linux-lts-vivid kernels:

  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-trusty/trusty/amd64/l/lxc/20151010_103318@/log.gz
  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-trusty/trusty/i386/l/lxc/20151010_103325@/log.gz

  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-trusty/trusty/amd64/l/lxc/20151009_085841@/log.gz
  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-trusty/trusty/i386/l/lxc/20151009_091723@/log.gz

  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-trusty/trusty/amd64/l/lxc/20151010_105332@/log.gz
  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-trusty/trusty/i386/l/lxc/20151010_114021@/log.gz

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