Gnome-shell got stuck and produces a plethora of error log messages to syslog file

[Milan P]

This is the message in syslog file:

мар 11 09:34:43 hpz gnome-shell[2689]: == Stack trace for context 0x5563584e4900 ==
мар 11 09:34:43 hpz gnome-shell[2689]: == Stack trace for context 0x5563584e4900 ==
мар 11 09:34:43 hpz gnome-shell[2689]: == Stack trace for context 0x5563584e4900 ==
мар 11 09:34:43 hpz gnome-shell[2689]: == Stack trace for context 0x5563584e4900 ==
мар 11 09:34:43 hpz gnome-shell[2689]: == Stack trace for context 0x5563584e4900 ==
мар 11 09:34:43 hpz gnome-shell[2689]: == Stack trace for context 0x5563584e4900 ==
мар 11 09:34:43 hpz gnome-shell[2689]: == Stack trace for context 0x5563584e4900 ==
мар 11 09:34:43 hpz gnome-shell[2689]: == Stack trace for context 0x5563584e4900 ==
мар 11 09:34:44 hpz gnome-shell[2689]: Attempting to run a JS callback during garbage collection. This is most likely caused by destroying a Clutter actor or GTK widget with ::destroy signal connected, or using the destroy(), dispose(), or remove() vfuncs. Because it would crash the application, it has been blocked.
мар 11 09:34:44 hpz systemd-journald[377]: Suppressed 496051 messages from [e-mail]
мар 11 09:34:44 hpz gnome-shell[2689]: The offending callback was SourceFunc().
мар 11 09:34:44 hpz gnome-shell[2689]: Attempting to run a JS callback during garbage collection. This is most likely caused by destroying a Clutter actor or GTK widget with ::destroy signal connected, or using the destroy(), dispose(), or remove() vfuncs. Because it would crash the application, it has been blocked.
мар 11 09:34:44 hpz gnome-shell[2689]: The offending callback was SourceFunc().
мар 11 09:34:44 hpz gnome-shell[2689]: Attempting to run a JS callback during garbage collection. This is most likely caused by destroying a Clutter actor or GTK widget with ::destroy signal connected, or using the destroy(), dispose(), or remove() vfuncs. Because it would crash the application, it has been blocked.
мар 11 09:34:44 hpz gnome-shell[2689]: The offending callback was SourceFunc().
мар 11 09:34:44 hpz gnome-shell[2689]: Attempting to run a JS callback during garbage collection. This is most likely caused by destroying a Clutter actor or GTK widget with ::destroy signal connected, or using the destroy(), dispose(), or remove() vfuncs. Because it would crash the application, it has been blocked.
мар 11 09:34:44 hpz gnome-shell[2689]: The offending callback was SourceFunc().
мар 11 09:34:44 hpz gnome-shell[2689]: Attempting to run a JS callback during garbage collection. This is most likely caused by destroying a Clutter actor or GTK widget with ::destroy signal connected, or using the destroy(), dispose(), or remove() vfuncs. Because it would crash the application, it has been blocked.
мар 11 09:34:44 hpz gnome-shell[2689]: The offending callback was SourceFunc().
мар 11 09:34:44 hpz gnome-shell[2689]: Attempting to run a JS callback during garbage collection. This is most likely caused by destroying a Clutter actor or GTK widget with ::destroy signal connected, or using the destroy(), dispose(), or remove() vfuncs. Because it would crash the application, it has been blocked.
мар 11 09:34:44 hpz gnome-shell[2689]: The offending callback was SourceFunc().

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-shell 3.36.4-1ubuntu1~20.04.2
ProcVersionSignature: Ubuntu 5.8.0-44.50~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-44-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 11 23:17:11 2021
DisplayManager: gdm3
InstallationDate: Installed on 2020-10-17 (145 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
RelatedPackageVersions: mutter-common 3.36.7+git20201123-0.20.04.1
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

Thanks for the bug report.

Since most bugs are caused by third party extensions, removing them from the equation is the first thing to try. Please uninstall or disable (via the Extensions app):

  '<email address hidden>'

If the problem still happens after that then it would seem to be a duplicate of bug 1908429. I will mark it as such now.