gnome-shell crashed with SIGSEGV in g_type_check_instance_cast()

[Thibault Roche]

Related to bug #1737993

ProblemType: Crash
DistroRelease: Ubuntu 17.10
Package: gnome-shell 3.26.2-0ubuntu0.1
ProcVersionSignature: Ubuntu 4.13.0-19.22-generic 4.13.13
Uname: Linux 4.13.0-19-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.6
Architecture: amd64
CurrentDesktop: GNOME-Greeter:GNOME
Date: Thu Dec 14 10:28:30 2017
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
ExecutableTimestamp: 1510175942
InstallationDate: Installed on 2016-08-24 (477 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
ProcCmdline: /usr/bin/gnome-shell
ProcCwd: /var/lib/gdm3
SegvAnalysis:
 Segfault happened at: 0x7f7b40df3de2 <g_type_check_instance_cast+34>: mov (%rdi),%rbp
 PC (0x7f7b40df3de2) ok
 source "(%rdi)" (0x746b736564656572) not located in a known VMA region (needed readable region)!
 destination "%rbp" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: gnome-shell
StacktraceTop:
 g_type_check_instance_cast () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 st_label_set_text () at /usr/lib/gnome-shell/libst-1.0.so
 g_object_setv () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_object_set_property () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 () at /usr/lib/libgjs.so.0
Title: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast()
UpgradeStatus: Upgraded to artful on 2017-11-03 (40 days ago)
UserGroups:

[Apport retracing service (apport)]

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 #1722986, 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.