Bug#886154: gnome-shell: segfault in libgobject

[Kjö Hansi Glaz]

Package: gnome-shell
Version: 3.26.2-2
Severity: normal

Dear Maintainer,

A few times a day, gnome-shell (used as a wayland compositor) crashes,
ending the whole user session. I failed to determine a pattern in the
crash.

On the journal, I see:

janv. 02 15:10:59 debian kernel: gnome-shell[2009]: segfault at 1b00000000 ip 00007f775a314da2 sp 00007ffc562f53a0 error 4 in libgobject-2.0.

2nd time:

janv. 02 16:01:18 debian kernel: gnome-shell[20253]: segfault at c00000573 ip 00007f534d926da2 sp 00007ffcb92eb860 error 4 in libgobject-2.0.

I found a core file with the same timastamp:

-rw------- 1 user user 122M janv.  2 16:01 core

Opening it with gdb --core

Core was generated by `/usr/bin/Xwayland :0 -rootless -terminate -core -listen 4 -listen 5 -displayfd'.
Program terminated with signal SIGABRT, Aborted.
#0  0x00007f0012018a70 in ?? ()
[Current thread is 1 (LWP 20272)]
(gdb) bt
#0  0x00007f0012018a70 in ?? ()
#1  0x000000000a392000 in ?? ()
#2  0x0000000000000000 in ?? ()

I installed -dbgsym packages for all xwayland package dependencies, but
it doesn't help. Please provide guidance if you need more informations.

Also, I don't know if I should file this bug under gnome-shell or xwayland.

Thanks for maintaining gnome-shell


-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (900, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.14.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-shell depends on:
ii  caribou                                      0.4.21-4
ii  dconf-gsettings-backend [gsettings-backend]  0.26.1-2
ii  evolution-data-server                        3.26.3-4
ii  gir1.2-accountsservice-1.0                   0.6.45-1
ii  gir1.2-atspi-2.0                             2.26.2-2
ii  gir1.2-caribou-1.0                           0.4.21-4
ii  gir1.2-freedesktop                           1.54.1-4
ii  gir1.2-gcr-3                                 3.20.0-6
ii  gir1.2-gdesktopenums-3.0                     3.24.1-2
ii  gir1.2-gdm-1.0                               3.26.2.1-3
ii  gir1.2-geoclue-2.0                           2.4.7-1
ii  gir1.2-glib-2.0                              1.54.1-4
ii  gir1.2-gnomebluetooth-1.0                    3.26.1-2
ii  gir1.2-gnomedesktop-3.0                      3.26.2-4
ii  gir1.2-gtk-3.0                               3.22.26-2
ii  gir1.2-gweather-3.0                          3.26.1-2
ii  gir1.2-ibus-1.0                              1.5.17-3
ii  gir1.2-mutter-1                              3.26.2-1
ii  gir1.2-networkmanager-1.0                    1.10.2-1
ii  gir1.2-nmgtk-1.0                             1.8.10-1
ii  gir1.2-pango-1.0                             1.40.14-1
ii  gir1.2-polkit-1.0                            0.105-18
ii  gir1.2-rsvg-2.0                              2.40.20-2
ii  gir1.2-soup-2.4                              2.60.2-2
ii  gir1.2-upowerglib-1.0                        0.99.7-1
ii  gjs                                          1.50.2-2
ii  gnome-backgrounds                            3.26.2-2
ii  gnome-settings-daemon                        3.26.2-1
ii  gnome-shell-common                           3.26.2-2
ii  gsettings-desktop-schemas                    3.24.1-2
ii  libasound2                                   1.1.3-5
ii  libatk-bridge2.0-0                           2.26.1-1
ii  libatk1.0-0                                  2.26.1-2
ii  libc6                                        2.25-6
ii  libcairo2                                    1.15.8-3
ii  libcanberra-gtk3-0                           0.30-6
ii  libcanberra0                                 0.30-6
ii  libcroco3                                    0.6.12-2
ii  libdbus-glib-1-2                             0.108-3
ii  libecal-1.2-19                               3.26.3-4
ii  libedataserver-1.2-22                        3.26.3-4
ii  libgcr-base-3-1                              3.20.0-6
ii  libgdk-pixbuf2.0-0                           2.36.11-1
ii  libgirepository-1.0-1                        1.54.1-4
ii  libgjs0g [libgjs0-libmozjs-52-0]             1.50.2-2
ii  libglib2.0-0                                 2.54.2-5
ii  libglib2.0-bin                               2.54.2-5
ii  libgstreamer1.0-0                            1.12.4-1
ii  libgtk-3-0                                   3.22.26-2
ii  libical3                                     3.0.1-5
ii  libjson-glib-1.0-0                           1.4.2-3
ii  libmutter-1-0                                3.26.2-1
ii  libnm-glib4                                  1.10.2-1
ii  libnm-util2                                  1.10.2-1
ii  libpango-1.0-0                               1.40.14-1
ii  libpangocairo-1.0-0                          1.40.14-1
ii  libpolkit-agent-1-0                          0.105-18
ii  libpolkit-gobject-1-0                        0.105-18
ii  libpulse-mainloop-glib0                      11.1-4
ii  libpulse0                                    11.1-4
ii  libsecret-1-0                                0.18.5-5
ii  libstartup-notification0                     0.12-5
ii  libsystemd0                                  236-2
ii  libx11-6                                     2:1.6.4-3
ii  libxfixes3                                   1:5.0.3-1
ii  mutter                                       3.26.2-1
ii  python3                                      3.6.4-1

Versions of packages gnome-shell recommends:
ii  chrome-gnome-shell    9-1
ii  gdm3                  3.26.2.1-3
ii  gkbd-capplet          3.26.0-2
ii  gnome-control-center  1:3.26.2-1
ii  gnome-user-docs       3.26.2.1-1
ii  iio-sensor-proxy      2.2-1
ii  switcheroo-control    1.1-1
ii  unzip                 6.0-21

Versions of packages gnome-shell suggests:
ii  gir1.2-telepathyglib-0.12   0.24.1-1.1
ii  gir1.2-telepathylogger-0.2  0.8.2-2

-- no debconf information