在 RHEL 7.8 和更早的版本中会出现 GNOME 桌面没有响应，并在日志中出现 "JS ERROR: TypeError " 信息的情况。

Issue

• GNOME 桌面没有响应，需要重启系统。
• gnome-shell 消耗非常高的 CPU 资源。

在日志中出现以下类型的信息：

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

  Raw

  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

  Raw

  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

  Raw

  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
  

• 因为 JavaScript 错误造成 Gnome 会话没有响应。

  Raw

  JS ERROR: TypeError: null has no properties + meta_display_ping_timeout