logg entries "gnome-shell[...]: Object St.Label (...), has been already finalized. Impossible to set any property to it." are produced every 5 seconds
I am running ubuntu 18.04, which I keep updated. The versions of my gnome-shell packages are:
$ dpkg-query -l gnome-shell gnome-shell-common gnome-shell-extension-appindicator gnome-shell-extension-ubuntu-dock
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-=================================
ii gnome-shell 3.28.3-0ubun amd64 graphical shell for the GNOME des
ii gnome-shell-co 3.28.3-0ubun all common files for the GNOME graphi
ii gnome-shell-ex 18.04.1 all App indicators for GNOME Shell
ii gnome-shell-ex 0.9.1ubuntu1 all Ubuntu Dock for GNOME Shell
Lines log lines the following are produced every 5 seconds, and filling my /var/log/syslog file:
gnome-shell[2082]: Object St.Label (0x55e7d9bbfac0), has been already finalized. Impossible to set any property to it.
org.gnome.Shell.desktop[2082]: == Stack trace for context 0x55e7d7cf5320 ==
org.gnome.Shell.desktop[2082]: #0 0x55e7d80a69f0 i /home/sarantos/.local/share/gnome-shell/extensions/system-monitor@paradoxxx.zero.gmail.com/extension.js:1138 (0x7fa3d40b8890 @ 143)
org.gnome.Shell.desktop[2082]: #1 0x7ffc44791bc0 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fa3e06b5de0 @ 71)
org.gnome.Shell.desktop[2082]: #2 0x7ffc447923b0 b /home/sarantos/.local/share/gnome-shell/extensions/system-monitor@paradoxxx.zero.gmail.com/extension.js:943 (0x7fa3d40b82b8 @ 85)
org.gnome.Shell.desktop[2082]: #3 0x7ffc44792470 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fa3e06b5de0 @ 71)
org.gnome.Shell.desktop[2082]: #4 0x7ffc44792520 b self-hosted:914 (0x7fa3e06f12b8 @ 346)
org.gnome.Shell.desktop[2082]: == Stack trace for context 0x55e7d7cf5320 ==
org.gnome.Shell.desktop[2082]: #0 0x55e7d80a69f0 i /home/sarantos/.local/share/gnome-shell/extensions/system-monitor@paradoxxx.zero.gmail.com/extension.js:1139 (0x7fa3d40b8890 @ 169)
org.gnome.Shell.desktop[2082]: #1 0x7ffc44791bc0 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fa3e06b5de0 @ 71)
org.gnome.Shell.desktop[2082]: #2 0x7ffc447923b0 b /home/sarantos/.local/share/gnome-shell/extensions/system-monitor@paradoxxx.zero.gmail.com/extension.js:943 (0x7fa3d40b82b8 @ 85)
org.gnome.Shell.desktop[2082]: #3 0x7ffc44792470 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fa3e06b5de0 @ 71)
org.gnome.Shell.desktop[2082]: #4 0x7ffc44792520 b self-hosted:914 (0x7fa3e06f12b8 @ 346)
org.gnome.Shell.desktop[2082]: == Stack trace for context 0x55e7d7cf5320 ==
org.gnome.Shell.desktop[2082]: #0 0x7ffc44792250 b /home/sarantos/.local/share/gnome-shell/extensions/system-monitor@paradoxxx.zero.gmail.com/extension.js:330 (0x7fa3d40b5780 @ 326)
org.gnome.Shell.desktop[2082]: #1 0x7ffc44792310 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fa3e06b5de0 @ 71)
org.gnome.Shell.desktop[2082]: #2 0x7ffc447923b0 b /home/sarantos/.local/share/gnome-shell/extensions/system-monitor@paradoxxx.zero.gmail.com/extension.js:947 (0x7fa3d40b82b8 @ 142)
org.gnome.Shell.desktop[2082]: #3 0x7ffc44792470 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fa3e06b5de0 @ 71)
org.gnome.Shell.desktop[2082]: #4 0x7ffc44792520 b self-hosted:914 (0x7fa3e06f12b8 @ 346)
gnome-shell[2082]: Object St.Icon (0x55e7d9bbf510), has been already finalized. Impossible to set any property to it.
gnome-shell[2082]: Object St.DrawingArea (0x55e7d9b8d6e0), has been already finalized. Impossible to get any property from it.
I have turned off all extensions, and even gnome-shell itself, from gnome-shell-extension-prefs, and I still get the same messages. The problem is similar to Bug #1747566, that seems to be fixed on a previous version of gnome-shell.
Edited by Florian Müllner