gnome-shell crashed with SIGSEGV in g_type_check_instance_cast()

[Michaël Lambé]

My mouse and trackpad are not working anymore after the latest upgrade of ubuntu 18.04

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.28.1-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
ApportVersion: 2.20.9-0ubuntu5
Architecture: amd64
CrashCounter: 1
CurrentDesktop: ubuntu:GNOME
Date: Fri Apr 20 16:20:52 2018
DisplayManager: gdm3
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-xenial-amd64-20160624-2
ExecutablePath: /usr/bin/gnome-shell
InstallationDate: Installed on 2018-04-04 (15 days ago)
InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47
ProcCmdline: /usr/bin/gnome-shell
SegvAnalysis:
 Segfault happened at: 0x7f142ed67d3d <g_type_check_instance_cast+77>: movzbl 0x16(%rax),%edx
 PC (0x7f142ed67d3d) ok
 source "0x16(%rax)" (0xec8348fb8948536a) not located in a known VMA region (needed readable region)!
 destination "%edx" 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
 ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
 ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
 () at /usr/lib/libgjs.so.0
Title: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo

[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 #1759621, 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.