SRU of LXC 2.0.4 (upstream bugfix release)

[Stéphane Graber]

LXC upstream released LXC 2.0.4 as a bugfix release with following changelog:
    - core: Add a prefix to the lxc.pc
    - core: Add flag in mount_entry to skip NODEV in case of a
      persistent dev entry
    - core: Add missing cgroup namespace to ns_info struct
    - core: attach: setns instead of unshare in lxc-attach
    - core: bdev: Add subdirectories to search path
    - core: bdev: Be smarter about btrfs subvolume detection
    - core: cgfsng: Don't pre-calculate path
    - core: cgfsng: Fix is_lxcfs() and is_cgroupfs()
    - core: cgroups: Move cgroup files to common subfolder
    - core: conf: Set pty_info to NULL after free
    - core: Detect if we should send SIGRTMIN+3
    - core: Replace readdir_r() with readdir()
    - core: Set up MTU for vlan-type interfaces.
    - core: tools, tests: Reorganize repo
    - c/r: Add support for CRIU's --action-script
    - c/r: Add support for ghost-limit in CRIU
    - c/r: Drop in-flight connections during CRIU dump
    - c/r: Initialize migrate_opts properly
    - c/r: Make local function static
    - c/r: Replace tmpnam() with mkstemp()
    - c/r: Store criu version
    - c/r: Use PRIu64 format specifier
    - doc: Fix typo found by lintian
    - doc: Update Japanese lxc-attach(1)
    - doc: Update lxc-attach(1)
    - lxc-attach: Add -f option (rcfile)
    - lxc-attach: Cleanup whitespaces
    - lxc-create: Add missing newline in output
    - lxc-ls: Use correct runtime path
    - templates: alpine: Add support for new arch
    - templates: alpine: Mount tmpfs under /run
    - templates: debian: Add more quotes to variables (at least $rootfs
      should now be covered)
    - templates: debian: Avoid noisy perl warnings caused by missing locales
    - templates: debian: fix regression when creating wheezy containers
    - templates: debian: Make shellcheck (Ubuntu: 0.3.7-5 amd64) most
      possible happy
    - tests: Add unit tests for lxc_string_in_array()
    - tests: Add unit tests for lxc_string_replace()

Just like Ubuntu itself, upstream releases long term support releases, as is 2.0 and then periodic point releases including all the accumulated bugfixes.

Only the latest upstream release gets full support from the upstream developers, everyone else is expected to first update to it before receiving any kind of support.

This bugfix release has already been uploaded to Yakkety and automatically backported in the upstream PPAs for all Ubuntu releases. So far without any reported regression.

This should qualify under the minor upstream bugfix release allowance of the SRU policy, letting us SRU this without paperwork for every single change included in this upstream release.

Once the SRU hits -updates, we will be backporting this to trusty-backports as well, making sure we have the same version everywhere.

[Martin Pitt (pitti)]

Hello Stéphane, or anyone else affected,

Accepted lxc into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/lxc/2.0.4-0ubuntu1~ubuntu16.04.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Stéphane Graber (stgraber)]

We had a report of checkpoint/restore failure on LXC 2.0.4 upstream, marking this as vertification-failed for now. I will recycle this bug as soon as we have an upstream fix for it later today.

[Stéphane Graber (stgraber)]

Fix is going through testing upstream https://github.com/lxc/lxc/pull/1152

[Stéphane Graber (stgraber)]

Update package uploaded to yakkety and xenial-proposed, should be accepted shortly.

[Andy Whitcroft (apw)]

Hello Stéphane, or anyone else affected,

Accepted lxc into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/lxc/2.0.4-0ubuntu1~ubuntu16.04.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Stéphane Graber (stgraber)]

I had production servers running this for the past week, all good.

[Stéphane Graber (stgraber)]

The verification of the Stable Release Update for lxc has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

[Launchpad Janitor (janitor)]

This bug was fixed in the package lxc - 2.0.4-0ubuntu1~ubuntu16.04.2

---------------
lxc (2.0.4-0ubuntu1~ubuntu16.04.2) xenial; urgency=medium

  * Cherry-pick from upstream (fixes checkpoint/restore regression):
    - 0003-c-r-use-proc-self-tid-children-instead-of-pidfile.patch
    - 0004-c-r-Fix-pid_t-on-some-arches.patch

lxc (2.0.4-0ubuntu1~ubuntu16.04.1) xenial; urgency=medium

  * New upstream bugfix release (2.0.4) (LP: #1615099):
    - core: Add a prefix to the lxc.pc
    - core: Add flag in mount_entry to skip NODEV in case of a
      persistent dev entry
    - core: Add missing cgroup namespace to ns_info struct
    - core: attach: setns instead of unshare in lxc-attach
    - core: bdev: Add subdirectories to search path
    - core: bdev: Be smarter about btrfs subvolume detection
    - core: cgfsng: Don't pre-calculate path
    - core: cgfsng: Fix is_lxcfs() and is_cgroupfs()
    - core: cgroups: Move cgroup files to common subfolder
    - core: conf: Set pty_info to NULL after free
    - core: Detect if we should send SIGRTMIN+3
    - core: Replace readdir_r() with readdir()
    - core: Set up MTU for vlan-type interfaces.
    - core: tools, tests: Reorganize repo
    - c/r: Add support for CRIU's --action-script
    - c/r: Add support for ghost-limit in CRIU
    - c/r: Drop in-flight connections during CRIU dump
    - c/r: Initialize migrate_opts properly
    - c/r: Make local function static
    - c/r: Replace tmpnam() with mkstemp()
    - c/r: Store criu version
    - c/r: Use PRIu64 format specifier
    - doc: Fix typo found by lintian
    - doc: Update Japanese lxc-attach(1)
    - doc: Update lxc-attach(1)
    - lxc-attach: Add -f option (rcfile)
    - lxc-attach: Cleanup whitespaces
    - lxc-create: Add missing newline in output
    - lxc-ls: Use correct runtime path
    - templates: alpine: Add support for new arch
    - templates: alpine: Mount tmpfs under /run
    - templates: debian: Add more quotes to variables (at least $rootfs
      should now be covered)
    - templates: debian: Avoid noisy perl warnings caused by missing locales
    - templates: debian: fix regression when creating wheezy containers
    - templates: debian: Make shellcheck (Ubuntu: 0.3.7-5 amd64) most
      possible happy
    - tests: Add unit tests for lxc_string_in_array()
    - tests: Add unit tests for lxc_string_replace()
  * Cherry-pick from upstream (for 4.6 kernel):
    - 0002-bdev-use-correct-overlay-module-name
  * Sync packaging with yakkety:
    - Tweak debian/tests/exercise to skip lxc-test-ubuntu on yakkety
    - Build-depend on libgnutls28-dev rather than libgnutls-dev

 -- Stéphane Graber <email address hidden> Fri, 26 Aug 2016 16:31:18 -0400