Fixed upstream: https://gitlab.gnome.org/GNOME/gnome-control-
center/commit/8879cd476a8c828326d437ddf00243e165999428

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https://bugs.launchpad.net/bugs/1754924

Title:
  gnome-control-center crashed with SIGSEGV in actualize_printers_list()

Status in gnome-control-center package in Ubuntu:
  Confirmed

Bug description:
  Test Case
  =========
  From Ubuntu 18.04, click the top right of the screen to open the system 
status menu.
  Click the gear button at the bottom to open the Settings app.
  In the Settings app, click Devices > Printers.
  Close the Settings app and then use the system status menu to re-open 
Settings.
  Navigate to the Printers panel.

  gnome-control-center crashes

  Other Info
  ==========
  I can reproduce the crash in Debian Buster also.

  This is also reproducible by opening the Settings app from the
  Activities Overview.

  This is not reproducible by running gnome-control-center from the
  command line.

  It's also odd that running gnome-control-center will always open the
  last opened panel (this is a GNOME 3.28 feature), but running it from
  either the Activities Overview or from the system status menu will
  only open the last opened panel if it is not in the Details or Devices
  submenus.

  ProblemType: Crash
  DistroRelease: Ubuntu 18.04
  Package: gnome-control-center 1:3.27.92-1ubuntu1
  ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
  Uname: Linux 4.15.0-12-generic x86_64
  ApportVersion: 2.20.8-0ubuntu10
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 10 22:33:39 2018
  ExecutablePath: /usr/bin/gnome-control-center
  InstallationDate: Installed on 2018-03-03 (7 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180301)
  ProcCmdline: gnome-control-center --overview
  ProcEnviron:
   PATH=(custom, user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x562f4ba335f1:        mov    0x90(%rbp),%rsi
   PC (0x562f4ba335f1) ok
   source "0x90(%rbp)" (0x00000090) not located in a known VMA region (needed 
readable region)!
   destination "%rsi" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: gnome-control-center
  StacktraceTop:
   ?? ()
   ?? ()
   ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
   ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
   g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
  Title: gnome-control-center crashed with SIGSEGV in g_main_context_dispatch()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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