[Bug 1809505] Re: 'Livepatch-Notif' is always a zombie process after a system restart

[Brian Murray]

Hello chris, or anyone else affected,

Accepted update-notifier into bionic-proposed. The package will build
now and be available at https://launchpad.net/ubuntu/+source/update-
notifier/3.192.1.5 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 on 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-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

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

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: update-notifier (Ubuntu Bionic)
       Status: New => Fix Committed

** Tags added: verification-needed verification-needed-bionic

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https://bugs.launchpad.net/bugs/1809505

Title:
  'Livepatch-Notif' is always a zombie process after a system restart

Status in update-notifier package in Ubuntu:
  Fix Released
Status in update-notifier source package in Bionic:
  Fix Committed

Bug description:
  * Impact
  update-notifier let livepatch-notification zombie processes

  * Test case
  wait for a livepatch update/notification, after the notification is dismissed there should be no zombie process

  * Regression potential
  Check that the livepatch notifications are correctly displayed still

  ---------------------------------

  This is Ubuntu 18.04.1 with update-notifier version
  apt-cache policy update-notifier
  update-notifier:
    Installed: 3.192.1.4
    Candidate: 3.192.1.4

  As shown here - https://imageshack.com/i/pl753Ekfp AFAICT I don't have
  livepatch enabled. Running:

  chris at localhost:/var/log$ ps axo stat,ppid,pid,comm | grep -w defunct
  Z+    3283  3290 livepatch-notif <defunct>

  3283 chris     20   0  585404  23776  17608 S   0.0  0.2   0:00.09
  update-
  notifier

  3290 chris     20   0       0      0      0 Z   0.0  0.0   0:00.00
  livepatch-notif

  It's no big deal to remove the zombie by killing update-notifier
  however I don't know if that's the right thing to do or not and why is
  livepatch-notif always a zombie process after a restart?

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