*** This bug is a duplicate of bug 1714745 ***
    https://bugs.launchpad.net/bugs/1714745

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #1714745, so is being marked as such.  Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

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https://bugs.launchpad.net/bugs/1716600/+attachment/4948544/+files/Disassembly.txt

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https://bugs.launchpad.net/bugs/1716600/+attachment/4948548/+files/ProcMaps.txt

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https://bugs.launchpad.net/bugs/1716600/+attachment/4948551/+files/Stacktrace.txt

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** This bug has been marked a duplicate of bug 1714745
   gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from 
shell_gtk_embed_window_created_cb() from g_closure_invoke() from 
signal_emit_unlocked_R()

** Information type changed from Private to Public

** Tags removed: need-amd64-retrace

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/1716600

Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast()

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  Crashed shortly after receiving a notification from Nextcloud.

  ProblemType: Crash
  DistroRelease: Ubuntu 17.10
  Package: gnome-shell 3.25.91-0ubuntu4
  ProcVersionSignature: Ubuntu 4.12.0-13.14-generic 4.12.10
  Uname: Linux 4.12.0-13-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.7-0ubuntu1
  Architecture: amd64
  CrashCounter: 1
  CurrentDesktop: GNOME
  Date: Tue Sep 12 09:52:18 2017
  DisplayManager: gdm3
  ExecutablePath: /usr/bin/gnome-shell
  InstallationDate: Installed on 2017-04-02 (162 days ago)
  InstallationMedia: Ubuntu-GNOME 16.04.2 LTS "Xenial Xerus" - Release amd64 
(20170215)
  ProcCmdline: /usr/bin/gnome-shell
  ProcEnviron:
   LANGUAGE=en_ZA:en
   PATH=(custom, user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_ZA.UTF-8
   SHELL=/usr/bin/zsh
  SegvAnalysis:
   Segfault happened at: 0x7f19fa20ae26 <g_type_check_instance_cast+22>:        
mov    (%rdi),%rdi
   PC (0x7f19fa20ae26) ok
   source "(%rdi)" (0x00c00ba6) not located in a known VMA region (needed 
readable region)!
   destination "%rdi" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: gnome-shell
  StacktraceTop:
   g_type_check_instance_cast () from 
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   ?? () from /usr/lib/gnome-shell/libgnome-shell.so
   g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  Title: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast()
  UpgradeStatus: Upgraded to artful on 2017-08-10 (32 days ago)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo

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