Gnome desktop is unresponsive and message "JS ERROR: TypeError " logged in RHEL 7.8 and prior releases.

Issue

• Gnome desktop is no longer responsive and system needs to be rebooted.
• gnome-shell consuming high CPU.

The following types of messages are logged :

• JS ERROR: Exception in callback for signal: shown: TypeError: this._fullGeometry is undefined

  JS ERROR: Exception in callback for signal: shown: TypeError: this._fullGeometry is undefined
  JS ERROR: Exception in callback for signal: position-changed: TypeError: this._rect is undefined
  JS ERROR: Exception in callback for signal: shown: TypeError: this._fullGeometry is undefined
  JS ERROR: TypeError: area is null
  JS ERROR: TypeError: metaWindow is null
  JS ERROR: TypeError: sourceActor.get_theme_node is not a function
  JS ERROR: TypeError: super._onDestroy is not a function
  JS ERROR: TypeError: this._fullGeometry is null
  JS ERROR: TypeError: this._fullGeometry is undefined
  JS ERROR: TypeError: thumbnail is undefined
  

• JS ERROR: TypeError: sourceActor.get_theme_node is not a function

  JS ERROR: TypeError: sourceActor.get_theme_node is not a function
  JS ERROR: Exception in callback for signal: position-changed: TypeError: this._rect is undefined
  JS ERROR: Exception in callback for signal: shown: TypeError: this._fullGeometry is undefined
  JS ERROR: TypeError: area is null
  JS ERROR: TypeError: metaWindow is null
  JS ERROR: TypeError: sourceActor.get_theme_node is not a function
  JS ERROR: TypeError: super._onDestroy is not a function
  JS ERROR: TypeError: this._fullGeometry is null
  JS ERROR: TypeError: this._fullGeometry is undefined
  JS ERROR: TypeError: thumbnail is undefined
  

• JS ERROR: TypeError: windowActor is null

  journal: JS ERROR: TypeError: null has no properties#012_addWindowEffect@resource:///org/gnome/shell/ui/closeDialog.js:82:13#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012vfunc_show@resource:///org/gnome/shell/ui/closeDialog.js:153:9#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
  journal: JS ERROR: TypeError: null has no properties#012_addWindowEffect@resource:///org/gnome/shell/ui/closeDialog.js:82:13#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012vfunc_show@resource:///org/gnome/shell/ui/closeDialog.js:153:9#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
  rsyslogd: imjournal: 17674 messages lost due to rate-limiting
  gnome-session: gnome-session-binary[76309]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 1
  

• Unresponsive Gnome session due to JavaScript errors.

  JS ERROR: TypeError: null has no properties + meta_display_ping_timeout