wrapper-2.0 crashed with SIGSEGV in g_type_check_instance()

[Mateus Fernandes Martins]

Sometimes the error appears but nothing wrong occurs with the system

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: libxfce4panel-2.0-4 4.12.2-1ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3
Uname: Linux 4.15.0-10-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CrashCounter: 1
CurrentDesktop: XFCE
Date: Mon Mar 12 12:49:07 2018
ExecutablePath: /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0
InstallationDate: Installed on 2018-03-01 (10 days ago)
InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180301)
ProcCmdline: /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libappmenu-xfce.so 1 18874403 appmenu AppMenu\ Plugin Display\ AppMenu\ (Global\ Menu)
SegvAnalysis:
 Segfault happened at: 0x7f5a037ee189 <g_type_check_instance+25>: mov (%rax),%rdi
 PC (0x7f5a037ee189) ok
 source "(%rax)" (0x000037fc) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: xfce4-panel
StacktraceTop:
 g_type_check_instance () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 () at /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libappmenu-xfce.so
 () at /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libappmenu-xfce.so
Title: wrapper-2.0 crashed with SIGSEGV in g_type_check_instance()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 g_type_check_instance (type_instance=type_instance@entry=0x5641852ab280) at ../../../../gobject/gtype.c:4131
 g_signal_emit_valist (instance=0x5641852ab280, signal_id=307, detail=0, var_args=var_args@entry=0x7ffc22e843d0) at ../../../../gobject/gsignal.c:3176
 g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
 g_menu_model_items_changed (model=<optimized out>, position=<optimized out>, removed=<optimized out>, added=<optimized out>) at ../../../../gio/gmenumodel.c:690
 queue_emit_all (queue=queue@entry=0x564184f87920) at ./lib/dbusmenu-importer/model.c:150

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Derk Willem te Bokkel (dtebokkel)]

fresh disco install xubuntu-daily-03-22-2019 iso .. occurs shortly after first login to xfce/xubuntu
while doing updates .. just before they completed ..

extra info:

apt show xfce4-panel
Package: xfce4-panel
Version: 4.13.4-1
Priority: optional
Section: universe/x11
Origin: Ubuntu
Maintainer: Ubuntu Developers <email address hidden>
Original-Maintainer: Debian Xfce Maintainers <email address hidden>
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 3,501 kB
Depends: exo-utils, libatk1.0-0 (>= 1.12.4), libc6 (>= 2.7), libcairo2 (>= 1.2.4), libexo-2-0 (>= 0.11.0), libgarcon-1-0 (>= 0.3.0), libgarcon-gtk3-1-0 (>= 0.6.0), libgdk-pixbuf2.0-0 (>= 2.22.0), libglib2.0-0 (>= 2.41.1), libgtk-3-0 (>= 3.21.5), libgtk2.0-0 (>= 2.20.0), libpango-1.0-0 (>= 1.14.0), libwnck-3-0 (>= 2.91.6), libx11-6, libxext6, libxfce4panel-2.0-4 (>= 4.13.4), libxfce4ui-2-0 (>= 4.13.0), libxfce4util7 (>= 4.9.0), libxfconf-0-3 (>= 4.12.1)
Homepage: https://www.xfce.org/
Task: xubuntu-core, xubuntu-desktop, ubuntustudio-desktop-core, ubuntustudio-desktop
Download-Size: 616 kB
APT-Manual-Installed: no
APT-Sources: http://ca.archive.ubuntu.com/ubuntu disco/universe amd64 Packages
Description: panel for Xfce4 desktop environment
 This is the panel provided by the Xfce4 desktop project. If you want a
 multi-functional panel that can even handle plugins and the like,
 xfce4-panel might be worth a try.

the install running when error occurred:

sudo apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded:
  binutils binutils-common binutils-x86-64-linux-gnu firefox gcc-9-base
  ghostscript ghostscript-x intel-microcode libasan5 libatomic1 libbinutils
  libcc1-0 libgcc1 libgfortran5 libgomp1 libgs9 libgs9-common libitm1 liblsan0
  libnss-systemd libpam-systemd libquadmath0 libsmbclient libstdc++6
  libsystemd0 libtsan0 libubsan1 libwbclient0 login passwd python-apt-common
  python3-apt samba-libs systemd systemd-sysv ufw unattended-upgrades
  xfce4-weather-plugin
38 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 59.7 MB/75.4 MB of archives.
After this operation, 686 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://ca.archive.ubuntu.com/ubuntu disco/main amd64 firefox amd64 66.0.1+build1-0ubuntu1 [47.9 MB]
Get:2 http://ca.archive.ubuntu.com/ubuntu disco/main amd64 ghostscript-x amd64 9.26~dfsg+0-0ubuntu7 [43.0 kB]
Get:3 http://ca.archive.ubuntu.com/ubuntu disco/main amd64 ghostscript amd64 9.26~dfsg+0-0ubuntu7 [51.7 kB]
Get:4 http://ca.archive.ubuntu.com/ubuntu disco/main amd64 libgs9 amd64 9.26~dfsg+0-0ubuntu7 [2,391 kB]
Get:5 http://ca.archive.ubuntu.com/ubuntu disco/main amd64 libgs9-common all 9.26~dfsg+0-0ubuntu7 [5,093 kB]
Get:6 http://ca.archive.ubuntu.com/ubuntu disco/main amd64 unattended-upgrades all 1.10ubuntu2 [47.8 kB]
Get:7 http://ca.archive.ubuntu.com/ubuntu disco/universe amd64 xfce4-weather-plugin amd64 0.9.1-0ubuntu1 [2,360 kB]
Get:8 http://ca.archive.ubuntu.com/ubuntu disco/main amd64 intel-microcode amd64 3.20190312.1 [1,749 kB]
Fetched 35....