Thanks for all that. Unfortunately I can't find any previous reports of
this exact bug. Though I expect this bug does not exist in Ubuntu 20.04
since the offending tweener code was removed there.
** Summary changed:
- System hangs, syslog filled with `org.gnome.Shell.desktop` reports
+ System hangs, syslog filled with: Object St.BoxLayout (...), has been already
deallocated - impossible to access it. Called from
ubuntu-d...@ubuntu.com/docking.js:184 from tweener.js:322
** Changed in: gnome-shell (Ubuntu)
Importance: Undecided => Medium
** Changed in: gnome-shell (Ubuntu)
Status: Incomplete => New
** Tags added: performance
** Package changed: gnome-shell (Ubuntu) => gnome-shell-extension-
ubuntu-dock (Ubuntu)
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https://bugs.launchpad.net/bugs/1887235
Title:
System hangs, syslog filled with: Object St.BoxLayout (...), has been
already deallocated - impossible to access it. Called from ubuntu-
d...@ubuntu.com/docking.js:184 from tweener.js:322
Status in gnome-shell-extension-ubuntu-dock package in Ubuntu:
New
Bug description:
Description: Ubuntu 18.04.4 LTS
Release: 18.04
I have been having incidents where the system suddenly hangs and
nothing except a restart works.
The only thing that I can see in logs are the following:
Syslog filled up with repeats of:
```
Jul 11 20:27:18 gnome-shell[3317]: Object St.BoxLayout (0x55b1d8322450), has
been already deallocated - impossible to access it. This might be caused by the
object having been destroyed from C code using something such as destroy(),
dispose(), or remove() vfuncs
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: == Stack trace for context
0x55b1d37ee320 ==
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #0 0x7fff7db4aa50 b
/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/docking.js:184
(0x7f523f3bfab0 @ 35)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #1 0x7fff7db4b480 b
resource:///org/gnome/gjs/modules/tweener/tweener.js:322 (0x7f52845d2bc0 @ 1462)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #2 0x7fff7db4b530 b
resource:///org/gnome/gjs/modules/tweener/tweener.js:350 (0x7f52845d2c48 @ 100)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #3 0x7fff7db4b5c0 b
resource:///org/gnome/gjs/modules/tweener/tweener.js:365 (0x7f52845d2cd0 @ 10)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #4 0x7fff7db4b6b0 b
resource:///org/gnome/gjs/modules/signals.js:128 (0x7f52845d2230 @ 386)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #5 0x7fff7db4b760 b
resource:///org/gnome/shell/ui/tweener.js:244 (0x7f52845cf808 @ 159)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #6 0x7fff7db4b7c0 I
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f52845b5de0 @ 71)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #7 0x7fff7db4b860 b
resource:///org/gnome/shell/ui/tweener.js:219 (0x7f52845cf780 @ 15)
Jul 11 20:27:18 gnome-shell[3317]: clutter_actor_queue_relayout: assertion
'CLUTTER_IS_ACTOR (self)' failed
Jul 11 20:27:18 gnome-shell[3317]: Object St.BoxLayout (0x55b1d8322450), has
been already deallocated - impossible to access it. This might be caused by the
object having been destroyed from C code using something such as destroy(),
dispose(), or remove() vfuncs
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: == Stack trace for context
0x55b1d37ee320 ==
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #0 0x7fff7db4aa50 b
/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/docking.js:184
(0x7f523f3bfab0 @ 35)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #1 0x7fff7db4b480 b
resource:///org/gnome/gjs/modules/tweener/tweener.js:322 (0x7f52845d2bc0 @ 1462)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #2 0x7fff7db4b530 b
resource:///org/gnome/gjs/modules/tweener/tweener.js:350 (0x7f52845d2c48 @ 100)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #3 0x7fff7db4b5c0 b
resource:///org/gnome/gjs/modules/tweener/tweener.js:365 (0x7f52845d2cd0 @ 10)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #4 0x7fff7db4b6b0 b
resource:///org/gnome/gjs/modules/signals.js:128 (0x7f52845d2230 @ 386)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #5 0x7fff7db4b760 b
resource:///org/gnome/shell/ui/tweener.js:244 (0x7f52845cf808 @ 159)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #6 0x7fff7db4b7c0 I
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f52845b5de0 @ 71)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #7 0x7fff7db4b860 b
resource:///org/gnome/shell/ui/tweener.js:219 (0x7f52845cf780 @ 15)
Jul 11 20:27:18 gnome-shell[3317]: clutter_actor_queue_relayout: assertion
'CLUTTER_IS_ACTOR (self)' failed
Jul 11 20:27:18 gnome-shell[3317]: Object St.BoxLayout (0x55b1d8322450), has
been already deallocated - impossible to access it. This might be caused by the
object having been destroyed from C code using something such as destroy(),
dispose(), or remove() vfuncs
Jul 11 20:27:18 gnome-shell[3317]: clutter_actor_queue_relayout: assertion
'CLUTTER_IS_ACTOR (self)' failed
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: == Stack trace for context
0x55b1d37ee320 ==
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #0 0x7fff7db4aa50 b
/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/docking.js:184
(0x7f523f3bfab0 @ 35)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #1 0x7fff7db4b480 b
resource:///org/gnome/gjs/modules/tweener/tweener.js:322 (0x7f52845d2bc0 @ 1462)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #2 0x7fff7db4b530 b
resource:///org/gnome/gjs/modules/tweener/tweener.js:350 (0x7f52845d2c48 @ 100)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #3 0x7fff7db4b5c0 b
resource:///org/gnome/gjs/modules/tweener/tweener.js:365 (0x7f52845d2cd0 @ 10)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #4 0x7fff7db4b6b0 b
resource:///org/gnome/gjs/modules/signals.js:128 (0x7f52845d2230 @ 386)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #5 0x7fff7db4b760 b
resource:///org/gnome/shell/ui/tweener.js:244 (0x7f52845cf808 @ 159)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #6 0x7fff7db4b7c0 I
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f52845b5de0 @ 71)
Jul 11 20:27:18 org.gnome.Shell.desktop[3317]: #7 0x7fff7db4b860 b
resource:///org/gnome/shell/ui/tweener.js:219 (0x7f52845cf780 @ 15)
```
Sometimes:
```
Jul 11 20:28:17 gnome-shell[3317]: Object .Gjs_AppIndicatorIconActor__1
(0x55b1d61b87c0), has been already finalized. Impossible to set any property to
it.
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: == Stack trace for context
0x55b1d37ee320 ==
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #0 0x7fff7db41410 I
resource:///org/gnome/gjs/modules/_legacy.js:83 (0x7f52845b5de0 @ 87)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #1 0x55b1d3b78410 i
/usr/share/gnome-shell/extensions/ubuntu-appindicat...@ubuntu.com/indicatorStatusIcon.js:93
(0x7f523f3bf340 @ 58)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #2 0x7fff7db41ff0 I
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f52845b5de0 @ 71)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #3 0x7fff7db420b0 b
self-hosted:916 (0x7f52845f12b8 @ 367)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #4 0x7fff7db42130 I
resource:///org/gnome/gjs/modules/signals.js:128 (0x7f52845d2230 @ 386)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #5 0x55b1d3b78388 i
/usr/share/gnome-shell/extensions/ubuntu-appindicat...@ubuntu.com/appIndicator.js:190
(0x7f523f3a9f78 @ 22)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #6 0x7fff7db42d10 I
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f52845b5de0 @ 71)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #7 0x55b1d3b782e0 i
/usr/share/gnome-shell/extensions/ubuntu-appindicat...@ubuntu.com/statusNotifierWatcher.js:219
(0x7f523f3a95e8 @ 225)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #8 0x7fff7db438f0 I
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f52845b5de0 @ 71)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #9 0x55b1d3b78268 i
/usr/share/gnome-shell/extensions/ubuntu-appindicat...@ubuntu.com/extension.js:61
(0x7f523f384780 @ 37)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #10 0x55b1d3b781a8 i
resource:///org/gnome/shell/ui/extensionSystem.js:83 (0x7f52844592b8 @ 441)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #11 0x55b1d3b78128 i
resource:///org/gnome/shell/ui/extensionSystem.js:354 (0x7f5284459d58 @ 13)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #12 0x7fff7db445f0 b
self-hosted:251 (0x7f52845c4ab0 @ 223)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #13 0x55b1d3b780a8 i
resource:///org/gnome/shell/ui/extensionSystem.js:353 (0x7f5284459cd0 @ 64)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #14 0x55b1d3b78028 i
resource:///org/gnome/shell/ui/extensionSystem.js:371 (0x7f5284459de0 @ 87)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #15 0x7fff7db45af0 b
resource:///org/gnome/gjs/modules/signals.js:128 (0x7f52845d2230 @ 386)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #16 0x7fff7db46300 b
resource:///org/gnome/shell/ui/sessionMode.js:205 (0x7f52840704d8 @ 254)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #17 0x7fff7db46fe0 I
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f52845b5de0 @ 71)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #18 0x55b1d3b77ee8 i
resource:///org/gnome/shell/ui/sessionMode.js:167 (0x7f52840702b8 @ 40)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #19 0x7fff7db47bc0 I
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f52845b5de0 @ 71)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #20 0x55b1d3b77e40 i
resource:///org/gnome/shell/ui/screenShield.js:1282 (0x7f5284053a28 @ 188)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #21 0x7fff7db487a0 I
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f52845b5de0 @ 71)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #22 0x55b1d3b77d90 i
resource:///org/gnome/shell/ui/screenShield.js:1331 (0x7f5284053ab0 @ 391)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #23 0x7fff7db49380 I
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f52845b5de0 @ 71)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #24 0x55b1d3b77d08 i
resource:///org/gnome/shell/ui/screenShield.js:734 (0x7f5284051560 @ 57)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #25 0x7fff7db49f70 I
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f52845b5de0 @ 71)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #26 0x7fff7db4a040 b
self-hosted:918 (0x7f52845f12b8 @ 394)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #27 0x7fff7db4a130 b
resource:///org/gnome/gjs/modules/signals.js:128 (0x7f52845d2230 @ 386)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #28 0x55b1d3b77c70 i
resource:///org/gnome/shell/misc/loginManager.js:186 (0x7f5284412230 @ 92)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #29 0x7fff7db4ada0 I
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f52845b5de0 @ 71)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #30 0x7fff7db4ae80 b
self-hosted:920 (0x7f52845f12b8 @ 428)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #31 0x7fff7db4af80 b
resource:///org/gnome/gjs/modules/signals.js:128 (0x7f52845d2230 @ 386)
Jul 11 20:28:17 org.gnome.Shell.desktop[3317]: #32 0x55b1d3b77bd0 i
resource:///org/gnome/gjs/modules/overrides/Gio.js:117 (0x7f52845e0ab0 @ 39)
```
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