$ gdb --args /usr/bin/gnome-shell --replace
GNU gdb (Ubuntu 7.12.50.20170314-0ubuntu1.1) 7.12.50.20170314-git
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Reading symbols from /usr/bin/gnome-shell...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/gnome-shell --replace
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffdf21e700 (LWP 7939)]
[New Thread 0x7fffdd004700 (LWP 7960)]
[New Thread 0x7fffd7df2700 (LWP 7961)]
[New Thread 0x7fffd75f1700 (LWP 7962)]
Gtk-Message: Failed to load module "canberra-gtk-module"
Gtk-Message: Failed to load module "canberra-gtk-module"
[New Thread 0x7fffd6be8700 (LWP 7965)]
[New Thread 0x7fffdc178700 (LWP 7966)]
[New Thread 0x7fffdc0f7700 (LWP 7967)]
[New Thread 0x7fffd63e7700 (LWP 7968)]
[New Thread 0x7fffd6366700 (LWP 7969)]
[New Thread 0x7fffd62e5700 (LWP 7970)]
[New Thread 0x7fffd6264700 (LWP 7971)]
[New Thread 0x7fffd61e3700 (LWP 7972)]
[New Thread 0x7fffd6162700 (LWP 7973)]
Gjs-Message: JS WARNING: [resource:///org/gnome/shell/ui/main.js 317]: reference to undefined property global.stage
Gjs-Message: JS WARNING: [resource:///org/gnome/shell/ui/layout.js 217]: reference to undefined property global.window_group
Gjs-Message: JS WARNING: [resource:///org/gnome/shell/ui/layout.js 899]: reference to undefined property this.monitors[this.findIndexForActor(...)]
Gjs-Message: JS WARNING: [resource:///org/gnome/shell/ui/osdMonitorLabeler.js 59]: reference to undefined property Meta.MonitorManager
[New Thread 0x7fff91843700 (LWP 7974)]
Gjs-Message: JS WARNING: [resource:///org/gnome/shell/ui/panel.js 1107]: reference to undefined property indicator.menu._openChangedId
Gjs-Message: JS WARNING: [resource:///org/gnome/gjs/modules/tweener/tweener.js 538]: reference to undefined property properties[istr].arrayIndex
current session already has an ibus-daemon.
Gjs-Message: JS WARNING: [resource:///org/gnome/shell/ui/slider.js 34]: reference to undefined property St.GenericAccessible
Gjs-Message: JS WARNING: [resource:///org/gnome/shell/ui/search.js 436]: reference to undefined property provider.isRemoteProvider
Dash to Dock-Message: WARNING: addSignalMethods is replacing existing [0x55555767e260 Gjs_ShowAppsIcon.dash-item-container] connect method
Dash to Dock-Message: WARNING: addSignalMethods is replacing existing [0x55555767e260 Gjs_ShowAppsIcon.dash-item-container] disconnect method
Dash to Dock-Message: WARNING: addSignalMethods is replacing existing [0x55555767e260 Gjs_ShowAppsIcon.dash-item-container] emit method
Multi Monitors Add-On-Message: Enable Multi Monitors Add-On ...
Multi Monitors Add-On-Message: pi:0
Multi Monitors Add-On-Message: i:0 x:0 y:0 w:1280 h:1024
Multi Monitors Add-On-Message: i:1 x:1280 y:0 w:1280 h:1024
Gjs-Message: JS WARNING: [resource:///org/gnome/shell/ui/workspacesView.js 527]: reference to undefined property this._restackedNotifyId
Multi Monitors Add-On-Message: new: i1x1280y0w1280h1024
GNOME Shell-Message: Extension alternate-tab@gnome-shell-extensions.gcampax.github.com already installed in /home/leonhard/.local/share/gnome-shell/extensions/alternate-tab@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/alternate-tab@gnome-shell-extensions.gcampax.github.com will not be loaded
GNOME Shell-Message: Extension apps-menu@gnome-shell-extensions.gcampax.github.com already installed in /home/leonhard/.local/share/gnome-shell/extensions/apps-menu@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/apps-menu@gnome-shell-extensions.gcampax.github.com will not be loaded
GNOME Shell-Message: Extension auto-move-windows@gnome-shell-extensions.gcampax.github.com already installed in /home/leonhard/.local/share/gnome-shell/extensions/auto-move-windows@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/auto-move-windows@gnome-shell-extensions.gcampax.github.com will not be loaded
GNOME Shell-Message: Extension drive-menu@gnome-shell-extensions.gcampax.github.com already installed in /home/leonhard/.local/share/gnome-shell/extensions/drive-menu@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/drive-menu@gnome-shell-extensions.gcampax.github.com will not be loaded
GNOME Shell-Message: Extension launch-new-instance@gnome-shell-extensions.gcampax.github.com already installed in /home/leonhard/.local/share/gnome-shell/extensions/launch-new-instance@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/launch-new-instance@gnome-shell-extensions.gcampax.github.com will not be loaded
GNOME Shell-Message: Extension native-window-placement@gnome-shell-extensions.gcampax.github.com already installed in /home/leonhard/.local/share/gnome-shell/extensions/native-window-placement@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/native-window-placement@gnome-shell-extensions.gcampax.github.com will not be loaded
GNOME Shell-Message: Extension places-menu@gnome-shell-extensions.gcampax.github.com already installed in /home/leonhard/.local/share/gnome-shell/extensions/places-menu@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/places-menu@gnome-shell-extensions.gcampax.github.com will not be loaded
GNOME Shell-Message: Extension screenshot-window-sizer@gnome-shell-extensions.gcampax.github.com already installed in /home/leonhard/.local/share/gnome-shell/extensions/screenshot-window-sizer@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/screenshot-window-sizer@gnome-shell-extensions.gcampax.github.com will not be loaded
GNOME Shell-Message: Extension user-theme@gnome-shell-extensions.gcampax.github.com already installed in /home/leonhard/.local/share/gnome-shell/extensions/user-theme@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/user-theme@gnome-shell-extensions.gcampax.github.com will not be loaded
GNOME Shell-Message: Extension window-list@gnome-shell-extensions.gcampax.github.com already installed in /home/leonhard/.local/share/gnome-shell/extensions/window-list@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/window-list@gnome-shell-extensions.gcampax.github.com will not be loaded
GNOME Shell-Message: Extension windowsNavigator@gnome-shell-extensions.gcampax.github.com already installed in /home/leonhard/.local/share/gnome-shell/extensions/windowsNavigator@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/windowsNavigator@gnome-shell-extensions.gcampax.github.com will not be loaded
GNOME Shell-Message: Extension workspace-indicator@gnome-shell-extensions.gcampax.github.com already installed in /home/leonhard/.local/share/gnome-shell/extensions/workspace-indicator@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/workspace-indicator@gnome-shell-extensions.gcampax.github.com will not be loaded
Gjs-Message: JS WARNING: [resource:///org/gnome/shell/ui/panel.js 342]: reference to undefined property this.menu.actionGroup
[New Thread 0x7fff91036700 (LWP 7981)]
Gjs-Message: JS WARNING: [resource:///org/gnome/shell/misc/ibusManager.js 196]: reference to undefined property this._engines[id]
Sound Input & Output Device Chooser-Message: Max Id:9
Sound Input & Output Device Chooser-Message: HDMI / DisplayPort 3
(Eingebautes Tongerät)
Sound Input & Output Device Chooser-Message: Added: 1:HDMI / DisplayPort 3:hdmi-output-2
Gjs-Message: JS WARNING: [/home/leonhard/.local/share/gnome-shell/extensions/sound-output-device-chooser@kgshank.net/base.js 167]: reference to undefined property this._availableDevicesIds[(intermediate value)]
Sound Input & Output Device Chooser-Message: Removed: 1
Sound Input & Output Device Chooser-Message: HDMI / DisplayPort 2
(Eingebautes Tongerät)
Sound Input & Output Device Chooser-Message: Added: 2:HDMI / DisplayPort 2:hdmi-output-1
Sound Input & Output Device Chooser-Message: Removed: 2
Sound Input & Output Device Chooser-Message: HDMI / DisplayPort
(Eingebautes Tongerät)
Sound Input & Output Device Chooser-Message: Added: 3:HDMI / DisplayPort:hdmi-output-0
Sound Input & Output Device Chooser-Message: Kopfhörer
(Eingebautes Tongerät)
Sound Input & Output Device Chooser-Message: Added: 4:Kopfhörer:analog-output-headphones
Sound Input & Output Device Chooser-Message: Activated: 4
Sound Input & Output Device Chooser-Message: Lautsprecher
(Eingebautes Tongerät)
Sound Input & Output Device Chooser-Message: Added: 5:Lautsprecher:analog-output-speaker
Sound Input & Output Device Chooser-Message: Line-Ausgang
(Eingebautes Tongerät)
Sound Input & Output Device Chooser-Message: Added: 6:Line-Ausgang:analog-output-lineout
Sound Input & Output Device Chooser-Message: Removed: 6
Sound Input & Output Device Chooser-Message: Max Id:10
Sound Input & Output Device Chooser-Message: Mikrofon der Freisprecheinrichtung
(Eingebautes Tongerät)
Sound Input & Output Device Chooser-Message: Added: 7:Mikrofon der Freisprecheinrichtung:analog-input-headset-mic
Sound Input & Output Device Chooser-Message: Mikrofon
(Eingebautes Tongerät)
Sound Input & Output Device Chooser-Message: Added: 8:Mikrofon:analog-input-headphone-mic
Sound Input & Output Device Chooser-Message: Activated: 8
Gjs-Message: JS WARNING: [resource:///org/gnome/shell/ui/status/network.js 1897]: reference to undefined property this._mainConnectionStateChangedId
[New Thread 0x7fff82710700 (LWP 8007)]
Gjs-Message: JS WARNING: [/home/leonhard/.local/share/gnome-shell/extensions/TopIcons@phocean.net/extension.js 73]: reference to undefined property blacklist[(i + 1)]
[Thread 0x7fff91843700 (LWP 7974) exited]
[Thread 0x7fffd7df2700 (LWP 7961) exited]
[Thread 0x7fff91036700 (LWP 7981) exited]
[New Thread 0x7fff91036700 (LWP 8014)]
[Thread 0x7fff82710700 (LWP 8007) exited]
Gjs-Message: JS WARNING: [resource:///org/gnome/shell/ui/workspace.js 1233]: reference to undefined property this._reservedSlotWindow

(gnome-shell:7935): Gdk-ERROR **: The program 'gnome-shell' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadCursor (invalid Cursor parameter)'.
  (Details: serial 2256 error_code 6 request_code 95 (core protocol) minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

Thread 1 "gnome-shell" received signal SIGTRAP, Trace/breakpoint trap.
0x00007ffff5599de1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
(gdb) t a a bt

Thread 18 (Thread 0x7fff91036700 (LWP 8014)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007ffff55da15a in g_cond_wait_until () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff55688d9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff5568efc in g_async_queue_timeout_pop () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffff55bca2d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff55bbf65 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007ffff53336da in start_thread (arg=0x7fff91036700) at pthread_create.c:456
#7  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 14 (Thread 0x7fffd6162700 (LWP 7973)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffe6291570 in PR_WaitCondVar () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#2  0x00007ffff01aee4f in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#3  0x00007fffe6296ed9 in ?? () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#4  0x00007ffff53336da in start_thread (arg=0x7fffd6162700) at pthread_create.c:456
#5  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 13 (Thread 0x7fffd61e3700 (LWP 7972)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffe6291570 in PR_WaitCondVar () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#2  0x00007ffff01aee4f in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#3  0x00007fffe6296ed9 in ?? () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#4  0x00007ffff53336da in start_thread (arg=0x7fffd61e3700) at pthread_create.c:456
#5  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 12 (Thread 0x7fffd6264700 (LWP 7971)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffe6291570 in PR_WaitCondVar () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#2  0x00007ffff01aee4f in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#3  0x00007fffe6296ed9 in ?? () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#4  0x00007ffff53336da in start_thread (arg=0x7fffd6264700) at pthread_create.c:456
#5  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 11 (Thread 0x7fffd62e5700 (LWP 7970)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffe6291570 in PR_WaitCondVar () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#2  0x00007ffff01aee4f in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#3  0x00007fffe6296ed9 in ?? () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#4  0x00007ffff53336da in start_thread (arg=0x7fffd62e5700) at pthread_create.c:456
#5  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 10 (Thread 0x7fffd6366700 (LWP 7969)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffe6291570 in PR_WaitCondVar () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#2  0x00007ffff01aee4f in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#3  0x00007fffe6296ed9 in ?? () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#4  0x00007ffff53336da in start_thread (arg=0x7fffd6366700) at pthread_create.c:456
#5  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 9 (Thread 0x7fffd63e7700 (LWP 7968)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffe6291570 in PR_WaitCondVar () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#2  0x00007ffff01aee4f in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#3  0x00007fffe6296ed9 in ?? () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#4  0x00007ffff53336da in start_thread (arg=0x7fffd63e7700) at pthread_create.c:456
#5  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 8 (Thread 0x7fffdc0f7700 (LWP 7967)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffe6291570 in PR_WaitCondVar () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#2  0x00007ffff01aee4f in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
---Type <return> to continue, or q <return> to quit---
#3  0x00007fffe6296ed9 in ?? () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#4  0x00007ffff53336da in start_thread (arg=0x7fffdc0f7700) at pthread_create.c:456
#5  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 7 (Thread 0x7fffdc178700 (LWP 7966)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fffe6291570 in PR_WaitCondVar () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#2  0x00007ffff01aee4f in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#3  0x00007fffe6296ed9 in ?? () from /usr/lib/x86_64-linux-gnu/libnspr4.so
#4  0x00007ffff53336da in start_thread (arg=0x7fffdc178700) at pthread_create.c:456
#5  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7fffd6be8700 (LWP 7965)):
#0  0x00007ffff5061d8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffff11bcdf1 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007ffff11ae601 in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007ffff11aec9e in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007ffff11aed50 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007ffff11bcd39 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fffe6f4a7d8 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-10.0.so
#7  0x00007ffff53336da in start_thread (arg=0x7fffd6be8700) at pthread_create.c:456
#8  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7fffd75f1700 (LWP 7962)):
#0  0x00007ffff5061d8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffff5594576 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff559468c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffd7dfa46d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#4  0x00007ffff55bbf65 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff53336da in start_thread (arg=0x7fffd75f1700) at pthread_create.c:456
#6  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7fffdd004700 (LWP 7960)):
#0  0x00007ffff5061d8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffff5594576 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff5594902 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff5b7b476 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ffff55bbf65 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff53336da in start_thread (arg=0x7fffdd004700) at pthread_create.c:456
#6  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7fffdf21e700 (LWP 7939)):
#0  0x00007ffff5061d8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffff5594576 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff559468c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff55946d1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffff55bbf65 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff53336da in start_thread (arg=0x7fffdf21e700) at pthread_create.c:456
#6  0x00007ffff506dd7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7ffff7ee7ac0 (LWP 7935)):
#0  0x00007ffff5599de1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ffff559c521 in g_log_writer_default () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff559a97c in g_log_structured_array () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff559ac79 in g_log_structured () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffff1fed66e in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#5  0x00007ffff1ffa9b3 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#6  0x00007ffff24d9c8d in _XError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#7  0x00007ffff24d6bb7 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#8  0x00007ffff24d6c75 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#9  0x00007ffff24d7b88 in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#10 0x00007ffff229576a in XFixesGetCursorImage () from /usr/lib/x86_64-linux-gnu/libXfixes.so.3
#11 0x00007ffff6d115b9 in ?? () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
---Type <return> to continue, or q <return> to quit---
#12 0x00007ffff6d119d8 in meta_cursor_tracker_get_sprite () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
#13 0x00007ffff79643de in shell_util_cursor_tracker_to_clutter () from /usr/lib/gnome-shell/libgnome-shell.so
#14 0x00007ffff08c3e18 in ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
#15 0x00007ffff08c387a in ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
#16 0x00007ffff746ea5f in ?? () from /usr/lib/libgjs.so.0
#17 0x00007ffff7470114 in ?? () from /usr/lib/libgjs.so.0
#18 0x00007ffff01d4cd8 in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#19 0x00007ffff01ca797 in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#20 0x00007ffff01d496b in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#21 0x00007ffff01d4c24 in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#22 0x00007ffff01d5845 in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#23 0x00007ffff043208b in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#24 0x00007fffdc06c134 in ?? ()
#25 0x00007fffffffc190 in ?? ()
#26 0x00007fffffffc0a8 in ?? ()
#27 0x00007fffd4f74610 in ?? ()
#28 0x00007fff81e40400 in ?? ()
#29 0x00007ffff06b2d20 in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
#30 0x00007fffd4f75490 in ?? ()
#31 0x00007fff81e4028b in ?? ()
#32 0x0000000000000600 in ?? ()
#33 0x00007fff90372840 in ?? ()
#34 0x0000000000000001 in ?? ()
#35 0x00007fffffffc0f0 in ?? ()
#36 0x0000000000000010 in ?? ()
#37 0xfffc7fffd42f1060 in ?? ()
#38 0xfffc7fffd42e2b50 in ?? ()
#39 0x00005555559a87a0 in ?? ()
#40 0x00007fffd42f1060 in ?? ()
#41 0x00007fff90386bc0 in ?? ()
#42 0xfffb800000000000 in ?? ()
#43 0x00007fff90372840 in ?? ()
#44 0xfffc7fffd4f58180 in ?? ()
#45 0x00007fffdc0676b5 in ?? ()
#46 0x0000000000000203 in ?? ()
#47 0x00007fff90368ec0 in ?? ()
#48 0x0000000000000001 in ?? ()
#49 0xfffc7fffd42f1060 in ?? ()
#50 0xfffc7fffd42e2b50 in ?? ()
#51 0x00007fffffffc228 in ?? ()
#52 0x00007fffdc067660 in ?? ()
#53 0x00007fffffffc460 in ?? ()
#54 0x00007fffffffc228 in ?? ()
#55 0x00007fffffffc240 in ?? ()
#56 0x0000555555a93720 in ?? ()
#57 0x00007fffffffc3b0 in ?? ()
#58 0x00007ffff03ac73e in ?? () from /usr/lib/x86_64-linux-gnu/libjs.so.0
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb) call gjs_dumpstack ()
== Stack trace for context 0x555555966e80 ==
Magnifier<._updateMouseSprite@resource:///org/gnome/shell/ui/magnifier.js:441:9
wrapper@resource:///org/gnome/gjs/modules/lang.js:178:22

[Thread 0x7fff91036700 (LWP 8014) exited]
$1 = 1433848128
(gdb) quit
A debugging session is active.

	Inferior 1 [process 7935] will be killed.

Quit anyway? (y or n) y