[Bug 1720331] Re: Whoopsie continually relaunching

[James Henstridge]

This is definitely a gnome-control-center bug rather than whoopsie.  I
can reproduce it like so:

 1. open gnome-control-center, and select the privacy panel.
 2. ensure that problem reporting is turned on.
 3. wait for whoopsie-preferences to exit on timeout (or manually kill it).

I then see traffic like the following on the system bus:

    method call time=1507286449.661622 sender=:1.325 -> destination=:1.336 serial=96 path=/com/ubuntu/WhoopsiePreferences; interface=com.ubuntu.WhoopsiePreferences; member=SetReportCrashes
       boolean false
    method call time=1507286449.918969 sender=:1.325 -> destination=:1.336 serial=97 path=/com/ubuntu/WhoopsiePreferences; interface=com.ubuntu.WhoopsiePreferences; member=SetReportCrashes
       boolean true
    method call time=1507286450.216068 sender=:1.325 -> destination=:1.336 serial=98 path=/com/ubuntu/WhoopsiePreferences; interface=com.ubuntu.WhoopsiePreferences; member=SetReportCrashes
       boolean false
    method call time=1507286450.529908 sender=:1.325 -> destination=:1.336 serial=99 path=/com/ubuntu/WhoopsiePreferences; interface=com.ubuntu.WhoopsiePreferences; member=SetReportCrashes
       boolean true
    ...

which continues until I kill gnome-control-center.  Whoopsie relaunching
is a direct consequence of these D-Bus method calls coming from gnome-
control-center.

It looks like the logic controlling the GtkSwitch gets into a loop when
whoopsie-preferences stops.  The D-Bus method calls are synchronous, so
this also ends up locking the UI.  I'll have a look into this properly
next week.

** Changed in: gnome-control-center (Ubuntu)
   Importance: Undecided => Medium

** Changed in: gnome-control-center (Ubuntu)
       Status: New => Triaged

** Changed in: gnome-control-center (Ubuntu)
     Assignee: (unassigned) => James Henstridge (jamesh)

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https://bugs.launchpad.net/bugs/1720331

Title:
  Whoopsie continually relaunching

Status in gnome-control-center package in Ubuntu:
  Triaged
Status in whoopsie package in Ubuntu:
  Triaged

Bug description:
  Today for the first time, and coincidentally looking for a different
  setting, I went to the Settings->Privacy dialogue. I was also
  (coincidentally for a different reason, relating to #1720149) already
  tailing /var/log/syslog to a terminal.

  Immediately on opening that dialogue, the syslog tail flooded with
  whoopsie continually relaunching, causing enough work to raise the fan
  speeds. This is a representative section from towards the end of me
  letting it, before I killed the service, with some necessary
  viciousness. Specifically

  systemctl stop whoopsie
  (didn't stop it)
  systemctl disable whoopsie
  (didn't stop it)
  (find pid for whoopsie's root process and kill it)
  (that stopped it)

  Also for good measure ensured the automatic bug reporting option in
  the privacy settings dialog was set to manual, which I think was done
  anyway when I disabled whoopsie, though the dialog wasn't on top at
  the time for me to be sure. It had been set to automatic when I first
  opened the dialog.

  Snippet from syslog attached. It was just repeating this continually
  for several minutes before I stopped it.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: whoopsie 0.2.58
  ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
  Uname: Linux 4.13.0-12-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.7-0ubuntu1
  Architecture: amd64
  CrashReports:
   664:1000:119:0:2017-09-25 18:16:58.760134901 +0100:2017-09-25 18:16:58.760134901 +0100:/var/crash/_opt_google_chrome_chrome.1000.upload
   640:1000:119:102847031:2017-09-27 20:28:45.352315425 +0100:2017-09-28 09:02:32.195212507 +0100:/var/crash/_usr_bin_gnome-shell.1000.crash
   640:1000:119:34020328:2017-09-25 18:16:57.656132936 +0100:2017-09-25 18:16:58.760134901 +0100:/var/crash/_opt_google_chrome_chrome.1000.crash
   600:111:119:0:2017-09-25 18:16:59.348145502 +0100:2017-09-25 18:16:59.348145502 +0100:/var/crash/_opt_google_chrome_chrome.1000.uploaded
  CurrentDesktop: GNOME
  Date: Fri Sep 29 10:00:34 2017
  InstallationDate: Installed on 2017-07-30 (60 days ago)
  InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412)
  RelatedPackageVersions: apport-noui N/A
  SourcePackage: whoopsie
  UpgradeStatus: Upgraded to artful on 2017-08-22 (37 days ago)

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