gnome-shell crashed with SIGSEGV in g_type_check_instance_is_a() from g_dbus_connection_signal_unsubscribe()

[Xavier Farret]

crash at startup

ProblemType: Crash
DistroRelease: Ubuntu 17.10
Package: gnome-shell 3.26.1-0ubuntu4
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
CrashCounter: 1
CurrentDesktop: GNOME-Greeter:GNOME
Date: Sun Oct 22 21:00:49 2017
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
GsettingsChanges:

ProcCmdline: /usr/bin/gnome-shell
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/false
SegvAnalysis:
 Segfault happened at: 0x7f6a8d46b77e <g_type_check_instance_is_a+62>: testb $0x4,0x16(%rdx)
 PC (0x7f6a8d46b77e) ok
 source "$0x4" ok
 destination "0x16(%rdx)" (0x00001e16) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: gnome-shell
StacktraceTop:
 g_type_check_instance_is_a () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_dbus_connection_signal_unsubscribe () 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_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/libgjs.so.0
Title: gnome-shell crashed with SIGSEGV in g_type_check_instance_is_a()
UpgradeStatus: Upgraded to artful on 2017-10-20 (1 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 g_type_check_instance_is_a (type_instance=type_instance@entry=0x55d09f50fd50, iface_type=<optimized out>) at ../../../../gobject/gtype.c:4013
 g_dbus_connection_signal_unsubscribe (connection=0x55d09f50fd50, subscription_id=341) at ../../../../gio/gdbusconnection.c:3637
 g_dbus_proxy_finalize (object=0x55d09d830410) at ../../../../gio/gdbusproxy.c:220
 g_object_unref (_object=0x55d09d830410) at ../../../../gobject/gobject.c:3330
 release_native_object (priv=priv@entry=0x55d09cc4beb0) at gi/object.cpp:1118

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1703300, so it 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. Feel free to continue to report any other bugs you may find.