update-notifier crashes on login

[Rachel Greenham]

This looks like a truly ancient bug: #12072. And a slightly less ancient one #38535. But here it is in 19.04.

Every time I log into gnome, I see a "System problem detected" dialog. I click on the button to report the problem, and the dialog disappears. While the dialog is up, the update-notifier icon is in the dock to the left. It disappears with the system problem dialog. I'm guessing it's that that breaks, but there's no other visible indication of what it is that's crashing. It's really annoying. :-) Annoying enough I'm considering just removing update-notifier, but it wants to remove ubuntu-desktop-minimal ubuntu-release-upgrader-gtk update-manager as well, which maybe doesn't seem like a great idea. But maybe it's the only way...

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: update-notifier 3.192.18
ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
Uname: Linux 5.0.0-13-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu May 9 16:07:43 2019
InstallationDate: Installed on 2018-09-11 (240 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180214)
SourcePackage: update-notifier
UpgradeStatus: Upgraded to disco on 2019-01-13 (115 days ago)

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately, we cannot work on this bug because your description didn't include enough information. You may find it helpful to read "How to report bugs effectively" http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful if you would then provide a more complete description of the problem.

We have instructions on debugging some types of problems at http://wiki.ubuntu.com/DebuggingProcedures.

At a minimum, we need:
1. The specific steps or actions you took that caused you to encounter the problem.
2. The behavior you expected.
3. The behavior you actually encountered (in as much detail as possible).
Thanks!

[Sebastien Bacher (seb128)]

Sorry copied on the wrong bug

Could you try to obtain a backtrace following the instructions at http://wiki.ubuntu.com/DebuggingProgramCrash and upload the backtrace (as an attachment) to the bug report. This will greatly help us in tracking down your problem.

Also add your "journalctl -b 0" log to the bug please

[Raphael van Uffelen (raphis)]

Dear all, I seem to have the same problem. Will try to post a backtrace, but for now this may be a first step:

update-notifier --debug-misc
(update-notifier:5568): dconf-DEBUG: 13:40:22.656: watch_fast: "/com/ubuntu/update-notifier/" (establishing: 0, active: 0)
** (update-notifier:5568): DEBUG: 13:40:22.656: livepatch_check ()
(update-notifier:5568): GLib-DEBUG: 13:40:22.656: posix_spawn avoided (automatic reaping requested) (fd close requested)
(update-notifier:5568): dconf-DEBUG: 13:40:22.657: watch_established: "/com/ubuntu/update-notifier/" (establishing: 1)
** (update-notifier:5568): DEBUG: 13:40:22.658: Name com.canonical.AppMenu.Registrar does not exist on the session bus

(update-notifier:5568): dconf-DEBUG: 13:40:22.658: watch_fast: "/org/appmenu/gtk-module/" (establishing: 0, active: 0)
(update-notifier:5568): dconf-DEBUG: 13:40:22.658: unwatch_fast: "/org/appmenu/gtk-module/" (active: 0, establishing: 1)
(update-notifier:5568): dconf-DEBUG: 13:40:22.658: watch_established: "/org/appmenu/gtk-module/" (establishing: 0)
(livepatch-notification:5574): GLib-GIO-DEBUG: 13:40:22.683: _g_io_module_get_default: Found default implementation dconf (DConfSettingsBackend) for ‘gsettings-backend’
(livepatch-notification:5574): dconf-DEBUG: 13:40:22.683: watch_fast: "/org/appmenu/gtk-module/" (establishing: 0, active: 0)
(livepatch-notification:5574): dconf-DEBUG: 13:40:22.684: unwatch_fast: "/org/appmenu/gtk-module/" (active: 0, establishing: 1)
(livepatch-notification:5574): dconf-DEBUG: 13:40:22.685: watch_established: "/org/appmenu/gtk-module/" (establishing: 0)
(livepatch-notification:5574): GLib-GIO-DEBUG: 13:40:22.688: _g_io_module_get_default: Found default implementation gvfs (GDaemonVfs) for ‘gio-vfs’
(livepatch-notification:5574): dconf-DEBUG: 13:40:22.714: watch_fast: "/org/appmenu/gtk-module/" (establishing: 0, active: 0)
(livepatch-notification:5574): dconf-DEBUG: 13:40:22.714: unwatch_fast: "/org/appmenu/gtk-module/" (active: 0, establishing: 1)
(livepatch-notification:5574): dconf-DEBUG: 13:40:22.714: watch_established: "/org/appmenu/gtk-module/" (establishing: 0)
** (update-notifier:5568): DEBUG: 13:40:24.335: trayapplet_create()
** (update-notifier:5568): DEBUG: 13:40:24.335: tray_applet_ui_ensure: software-update-available
(update-notifier:5568): GLib-DEBUG: 13:40:24.340: posix_spawn avoided (fd close requested)
** (update-notifier:5568): DEBUG: 13:40:25.960: trayapplet_create()
** (update-notifier:5568): DEBUG: 13:40:25.960: tray_applet_ui_destroy: hook-notifier
** (update-notifier:5568): DEBUG: 13:40:25.960: trayapplet_create()
** (update-notifier:5568): DEBUG: 13:40:25.960: trayapplet_create()
** (update-notifier:5568): DEBUG: 13:40:27.331: crashreport_check
(update-notifier:5568): GLib-DEBUG: 13:40:27.331: posix_spawn avoided (fd close requested)
(update-notifier:5568): GLib-DEBUG: 13:40:27.338: posix_spawn avoided (fd close requested)
(update-notifier:5568): GLib-DEBUG: 13:40:27.413: posix_spawn avoided (fd close requested)
** (update-notifier:5568): DEBUG: 13:40:27.489: crashreport found running apport now
** (update-notifier:5568): DEBUG: 13:40:27.489: fire up the crashreport tool
(update-notifier:5568): GLib-DEBU...

[Launchpad Janitor (janitor)]

[Expired for update-notifier (Ubuntu) because there has been no activity for 60 days.]