[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Launchpad Bug Tracker]

This bug was fixed in the package systemd - 231-9ubuntu1

---
systemd (231-9ubuntu1) yakkety; urgency=medium

  * debian/gbp.conf: Switch to yakkety branch
  * unit: sent change signal before removing the unit if necessary
(LP: #1632964)
  * networkd: Fix assertion crash on adding VTI with IPv6 addresses
(LP: #1633274)

 -- Martin Pitt   Wed, 26 Oct 2016 13:11:33
+0200

** Changed in: systemd (Ubuntu Yakkety)
   Status: Fix Committed => Fix Released

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Launchpad Bug Tracker]

This bug was fixed in the package systemd - 229-4ubuntu12

---
systemd (229-4ubuntu12) xenial; urgency=medium

  * unit: sent change signal before removing the unit if necessary
(LP: #1632964)
  * networkd: Fix assertion crash on adding VTI with IPv6 addresses
(LP: #1633274)
  * systemd-networkd-resolvconf-update.service: Propagate search domains
(LP: #1635256)

 -- Martin Pitt   Wed, 26 Oct 2016 13:18:42
+0200

** Changed in: systemd (Ubuntu Xenial)
   Status: Fix Committed => Fix Released

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Launchpad Bug Tracker]

This bug was fixed in the package systemd - 231-10

---
systemd (231-10) unstable; urgency=medium

  [ Martin Pitt ]
  * systemctl: Add --wait option to wait until started units terminate again.
  * nss-resolve: return NOTFOUND instead of UNAVAIL on resolution errors.
This makes it possible to configure a fallback to "dns" without breaking
DNSSEC, with "resolve [!UNAVAIL=return] dns".
  * libnss-resolve.postinst: Skip dns fallback if resolve is present.
Only fall back to "dns" if nss-resolve is not installed (for the
architecture of the calling program). Once it is, we never want to fall
back to "dns" as that breaks enforcing DNSSEC verification and also
pointlessly retries NXDOMAIN failures. (LP: #1624071)
  * unit: sent change signal before removing the unit if necessary
(LP: #1632964)
  * networkd: Fix assertion crash on adding VTI with IPv6 addresses
(LP: #1633274)
  * debian/tests/upstream: Stop specifying initrd, it is autodetected now.
  * debian/tests/upstream: Add gcc/libc-dev/make test dependencies,
so that the tests can build helper binaries.

  [ Felipe Sateler ]
  * Explicitly disable installing the upstream-provided PAM configuration.
  * Register interest in the status of dracut and initramfs-tools in reportbug
template

  [ Michael Biebl ]
  * Stop creating systemd-update-utmp-runlevel.service symlinks manually

 -- Martin Pitt   Wed, 26 Oct 2016 13:24:37 +0200

** Changed in: systemd (Ubuntu Zesty)
   Status: Fix Committed => Fix Released

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Martin Pitt]

** Tags removed: verification-needed
** Tags added: verification-done

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[seahawk1986]

Hello,
both systemd packages in the -proposed repository for xenial (229-4ubuntu12) 
and yakkety (231-9ubuntu1) are sending all the DBus signals I need to track 
unit state changes, thank you very much for fixing this regression.

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Andy Whitcroft]

Hello seahawk1986, or anyone else affected,

Accepted systemd into yakkety-proposed. The package will build now and
be available at
https://launchpad.net/ubuntu/+source/systemd/231-9ubuntu1 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!

** Changed in: systemd (Ubuntu Yakkety)
   Status: In Progress => Fix Committed

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Chris J Arges]

Hello seahawk1986, or anyone else affected,

Accepted systemd into xenial-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/systemd/229-4ubuntu12
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!

** Changed in: systemd (Ubuntu Xenial)
   Status: In Progress => Fix Committed

** Tags added: verification-needed

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Martin Pitt]

** Description changed:

  Since the penultimate systemd package update in september (229-4ubuntu8)
  systemd does not send the remaining queued DBus signals (e.g.
  PropertiesChanged) when a unit's state changes to inactive.
  
  Sending those signals has been working since the release of Ubuntu 16.04
  and it is quite unfortunate for my use case this got broken while fixing
  another bug.
  
  Adding this upstream change to the package restores the old
  functionality (a patch for the current systemd package (systemd
  229-4ubuntu10) for xenial is attached):
  
https://github.com/systemd/systemd/commit/0dd99f86addd1f81e24e89807b6bc4aab57d5793
  
+ SRU TEST CASE: See comment #8
+ Regression potential: Low; the patch only widens the condition when a change 
signal is sent, thus at most clients would now get more D-Bus signals than 
before (in particular, the missing one at becoming inactive).
+ 
  
  $ lsb_release -rd
  Description:Ubuntu 16.04.1 LTS
  Release:16.04
  
  package version: systemd 229-4ubuntu10

** Changed in: systemd (Ubuntu Xenial)
   Status: Incomplete => In Progress

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[seahawk1986]

I have been able to reproduce those missing signals most reliably within
a systemd user session (for the system session it works most of the
time):

Steps to reproduce missing dbus signals with Ubuntu 16.10 Desktop:

Create a ~/.config/systemd/user/terminal.service with this content:

[Unit]
Description=example unit to open a terminal

[Service]
Environment=DISPLAY=:0
ExecStart=/usr/bin/xterm
SuccessExitStatus=0 15

[Install]
WantedBy=default.target

Open two terminals. In the first one execute the attached
test_systemd_signals.py (which looks for PropertiesChanged Signals):

$ python test_systemd_signals.py

To see all dbus messages during the test you can run "dbus-monitor
--session" in another terminal.

In a second terminal start/stop the systemd unit:
$ systemctl --user daemon-reload
$ systemctl --user start terminal.service
$ systemctl --user stop terminal.service

With the current systemd package 231-9git1 the test script only shows two 
status changes (PropertiesChanged signals) sent by systemd:
ActiveState: active SubState: running
ActiveState: deactivating SubState: stop-sigterm

With the patched systemd package the test script should show the last change of 
the unit status (being set to inactive), too:
ActiveState: active SubState: running
ActiveState: deactivating SubState: stop-sigterm
ActiveState: inactive SubState: dead

Ubuntu 16.04 Desktop does not start a systemd user session by default - I 
created a package (based on https://github.com/joukewitteveen/xlogin) to 
simplify the process:
$ sudo add-apt-repository ppa:seahawk1986-hotmail/xlogin
$ sudo apt-get update
$ sudo apt-get install xlogin openbox

Create a ~/.xinitrc with this content (and make it executable):

#!/bin/bash
exec openbox-session

Then change to a tty console (or use a remote login via ssh):
$ sudo systemctl stop lightdm
$ sudo systemctl start xlogin@user # replace "user" with an existing user name

Now you can open two terminals (a right click on the desktop opens the
openbox menu) and follow the steps for Ubuntu 16.10 above.

** Attachment added: "test_systemd_signals.py"
   
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1632964/+attachment/4762145/+files/test_systemd_signals.py

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Martin Pitt]

So I suppose this got broken as a subtle side effect from
https://anonscm.debian.org/cgit/pkg-systemd/systemd.git/commit/?h
=ubuntu-xenial=5c429176 (bug 1529079). Do you have a reproducer for
this that we can use to verify the fix?

** Also affects: systemd (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Also affects: systemd (Ubuntu Yakkety)
   Importance: Undecided
   Status: New

** Also affects: systemd (Ubuntu Z-series)
   Importance: Undecided
   Status: New

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Martin Pitt]

Setting to "incomplete" as this still needs a reproducer for SRU
verification.

** Changed in: systemd (Ubuntu Xenial)
   Status: In Progress => Incomplete

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Martin Pitt]

Backported to xenial for SRU: https://anonscm.debian.org/cgit/pkg-
systemd/systemd.git/commit/?h=ubuntu-xenial=9b6838e4f

** Changed in: systemd (Ubuntu Xenial)
   Status: New => In Progress

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Martin Pitt]

Backported to yakkety branch for SRU: https://anonscm.debian.org/cgit
/pkg-systemd/systemd.git/commit/?h=ubuntu-yakkety=51fedb3eed0

** Changed in: systemd (Ubuntu Yakkety)
   Status: New => In Progress

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Martin Pitt]

I cherry-picked the patch into Debian master, which will sync into
z-series: https://anonscm.debian.org/cgit/pkg-
systemd/systemd.git/commit/?id=d261af7f0

** Changed in: systemd (Ubuntu Z-series)
   Status: New => Fix Committed

** Changed in: systemd (Ubuntu Z-series)
 Assignee: (unassigned) => Martin Pitt (pitti)

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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[Bug 1632964] Re: Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[Ubuntu Foundations Team Bug Bot]

The attachment "Patch for systemd-229-4ubuntu10" seems to be a patch.
If it isn't, please remove the "patch" flag from the attachment, remove
the "patch" tag, and if you are a member of the ~ubuntu-reviewers,
unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by
~brian-murray, for any issues please contact him.]

** Tags added: patch

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Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

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