JavaScript traceback from ui/dash.js:182
When running gnome-shell, the org.gnome.Shell.desktop ID logs this stacktrace to syslog quite often:
Object Clutter.Actor (0x557f71760ee0), has been already deallocated - impossible to access to it. This might be caused by the fact that the object has been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs
== Stack trace for context 0x557f6b658000 ==
#0 0x557f6bae4408 i resource:///org/gnome/shell/ui/dash.js:182 (0x7fc7708bb670 @ 37)
#1 0x7ffcdf4cc100 I resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fc7840c2bc0 @ 71)
#2 0x557f6bae4388 i resource:///org/gnome/shell/ui/dash.js:203 (0x7fc7708bb780 @ 17)
#3 0x7ffcdf4ccd20 I self-hosted:913 (0x7fc7840ee5e8 @ 346)
#4 0x557f6bae4300 i resource:///org/gnome/shell/ui/tweener.js:91 (0x7fc7840df098 @ 37)
#5 0x7ffcdf4cea50 b resource:///org/gnome/gjs/modules/tweener/tweener.js:203 (0x7fc7840e9cd0 @ 54)
#6 0x7ffcdf4ceba0 b resource:///org/gnome/gjs/modules/tweener/tweener.js:332 (0x7fc7840e9d58 @ 1626)
#7 0x7ffcdf4cec50 b resource:///org/gnome/gjs/modules/tweener/tweener.js:345 (0x7fc7840e9de0 @ 100)
#8 0x557f6bae4288 i resource:///org/gnome/gjs/modules/tweener/tweener.js:360 (0x7fc7840e9e68 @ 10)
#9 0x7ffcdf4cf8e0 I resource:///org/gnome/gjs/modules/signals.js:126 (0x7fc7840e2b38 @ 386)
#10 0x557f6bae41f8 i resource:///org/gnome/shell/ui/tweener.js:208 (0x7fc7840df808 @ 159)
#11 0x7ffcdf4d04e0 I resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fc7840c2bc0 @ 71)
#12 0x557f6bae4170 i resource:///org/gnome/shell/ui/tweener.js:183 (0x7fc7840df780 @ 20)
#13 0x7ffcdf4d1110 I self-hosted:917 (0x7fc7840ee5e8 @ 394)
It is always directly followed (same second) by another similar traceback:
Object St.Label (0x557f6d13ea00), has been already deallocated - impossible to access to it. This might be caused by the fact that the object has been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs
== Stack trace for context 0x557f6b658000 ==
#0 0x7ffcdf4cc100 I resource:///org/gnome/gjs/modules/_legacy.js:83 (0x7fc7840c2bc0 @ 87)
#1 0x557f6bae4388 i resource:///org/gnome/shell/ui/dash.js:203 (0x7fc7708bb780 @ 17)
#2 0x7ffcdf4ccd20 I self-hosted:913 (0x7fc7840ee5e8 @ 346)
#3 0x557f6bae4300 i resource:///org/gnome/shell/ui/tweener.js:91 (0x7fc7840df098 @ 37)
#4 0x7ffcdf4cea50 b resource:///org/gnome/gjs/modules/tweener/tweener.js:203 (0x7fc7840e9cd0 @ 54)
#5 0x7ffcdf4ceba0 b resource:///org/gnome/gjs/modules/tweener/tweener.js:332 (0x7fc7840e9d58 @ 1626)
#6 0x7ffcdf4cec50 b resource:///org/gnome/gjs/modules/tweener/tweener.js:345 (0x7fc7840e9de0 @ 100)
#7 0x557f6bae4288 i resource:///org/gnome/gjs/modules/tweener/tweener.js:360 (0x7fc7840e9e68 @ 10)
#8 0x7ffcdf4cf8e0 I resource:///org/gnome/gjs/modules/signals.js:126 (0x7fc7840e2b38 @ 386)
#9 0x557f6bae41f8 i resource:///org/gnome/shell/ui/tweener.js:208 (0x7fc7840df808 @ 159)
#10 0x7ffcdf4d04e0 I resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fc7840c2bc0 @ 71)
#11 0x557f6bae4170 i resource:///org/gnome/shell/ui/tweener.js:183 (0x7fc7840df780 @ 20)
#12 0x7ffcdf4d1110 I self-hosted:917 (0x7fc7840ee5e8 @ 394)
which in turn is always directly followed by the trackeback in #11 (closed).
Steps to reproduce: Unknown.
Additional info: This may be related to #11 (closed) and !4 (closed).
Installed software versions: gjs-1.50.4-1.fc27.x86_64 gnome-shell-3.26.2-4.fc27.x86_64 mutter-3.26.2-2.fc27.x86_64 gtk3-3.22.26-2.fc27.x86_64
Edited by Christian Stadelmann