I tried obtaining a stack and JS trace using GDB for an already running gnome-shell like discribed here:

https://wiki.gnome.org/GettingInTouch/Bugzilla/GettingTraces/Details#Obtaining_a_stack_and_JS_trace_using_GDB_for_an_already_running_gnome-shell

But inbetween gnome-shell crashed and I had to logout- and in again to get the journalctl logs.

The gdb.txt:

[Thread 0x7f81d54096c0 (LWP 18756) exited]
[New Thread 0x7f81d54096c0 (LWP 18825)]
[New Thread 0x7f81d4c086c0 (LWP 18826)]
[Thread 0x7f81d4c086c0 (LWP 18826) exited]
[New Thread 0x7f81d4c086c0 (LWP 18932)]
[New Thread 0x7f81b3fff6c0 (LWP 18933)]
[Thread 0x7f81d4c086c0 (LWP 18932) exited]
[New Thread 0x7f81d4c086c0 (LWP 18934)]
[New Thread 0x7f81b2ffd6c0 (LWP 18935)]
[Thread 0x7f81b3fff6c0 (LWP 18933) exited]
[Thread 0x7f81d4c086c0 (LWP 18934) exited]
[Thread 0x7f81b2ffd6c0 (LWP 18935) exited]
[Detaching after fork from child process 18936]
[New Thread 0x7f81b2ffd6c0 (LWP 18938)]
[New Thread 0x7f81d4c086c0 (LWP 18939)]
[Thread 0x7f81b2ffd6c0 (LWP 18938) exited]
[Thread 0x7f81d4c086c0 (LWP 18939) exited]

Thread 1 "gnome-shell" received signal SIGSEGV, Segmentation fault.
0x00007f82013fbf63 in _XSend () from /lib/x86_64-linux-gnu/libX11.so.6
#0  0x00007f82013fbf63 in _XSend () at /lib/x86_64-linux-gnu/libX11.so.6
#1  0x00007f82013f2331 in XQueryExtension () at /lib/x86_64-linux-gnu/libX11.so.6
#2  0x00007f81fe957d66 in  () at /lib/x86_64-linux-gnu/libXext.so.6
#3  0x00007f81fe9584b4 in XSyncTriggerFence () at /lib/x86_64-linux-gnu/libXext.so.6 #4  0x00007f820190a340 in meta_sync_free (self=0x55df71f4b2c0) at ../src/compositor/meta-sync-ring.c:392
        i = 0
        ring = 0x7f8201a50800 <meta_sync_ring>
        __func__ = "meta_sync_ring_destroy"
#5  meta_sync_ring_destroy () at ../src/compositor/meta-sync-ring.c:470
        i = 0
        ring = 0x7f8201a50800 <meta_sync_ring>
        __func__ = "meta_sync_ring_destroy"
#6  0x00007f8201908da5 in meta_compositor_x11_dispose (object=0x55df71f1fa00) at ../src/compositor/meta-compositor-x11.c:520
        compositor_x11 = 0x55df71f1fa00
        compositor = 0x55df71f1fa00
        stage = 0x55df71b88220
#7  0x00007f8202514d0a in g_object_run_dispose () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #8  0x00007f82018aca19 in meta_compositor_destroy (compositor=0x55df71f1fa00) at ../src/compositor/compositor.c:198 #9  0x00007f82018cc08d in meta_display_close (display=0x55df71b8c430, timestamp=<optimized out>) at ../src/core/display.c:1178
        _pp = 0x55df71b8c570
        _ptr = <optimized out>
        compositor = <optimized out>
        laters = 0x55df71f0f110
#10 0x00007f82022274ae in shell_global_reexec_self (global=0x55df71bb9810) at ../src/shell-global.c:1339
        arr = 0x7f81e4262c40
        len = 21
        meta_context = <optimized out>
        buf = 0x55df73d6ef90 "/usr/bin/gnome-shell"
        buf_p = <optimized out>
        buf_end = <optimized out>
        error = 0x0
#11 0x00007f8200fb2f7a in  () at /lib/x86_64-linux-gnu/libffi.so.8
#12 0x00007f8200fb240e in  () at /lib/x86_64-linux-gnu/libffi.so.8
#13 0x00007f8200fb2b0d in ffi_call () at /lib/x86_64-linux-gnu/libffi.so.8
#14 0x00007f8201dcbfa7 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#15 0x00007f8201dcc698 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#16 0x00007f81fef96620 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#17 0x00007f81fef89d67 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#18 0x00007f81fef95de3 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#19 0x00007f81fef96267 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#20 0x00007f81fef9682c in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#21 0x00007f81ff03fb1d in JS_CallFunctionValue(JSContext*, JS::Handle<JSObject*>, JS::Handle<JS::Value>, JS::HandleValueArray const&, JS::MutableHandle<JS::Value>) () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#22 0x00007f8201da8ed1 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#23 0x00007f8201dfc884 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#24 0x00007f820250e3f8 in g_closure_invoke () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#25 0x00007f820252101c in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#26 0x00007f82025221b1 in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#27 0x00007f8202528552 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #28 0x00007f82025285ff in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #29 0x00007f82018cc2fe in meta_display_request_restart (display=display@entry=0x55df71b8c430) at ../src/core/display.c:2601
        result = 0
#30 0x00007f82018e15b3 in restart_check_ready (context=0x55df71511c80) at ../src/core/restart.c:64
        display = 0x55df71b8c430
        context = 0x55df71511c80
        error = 0x0
        length = 7
        line = <optimized out>
#31 restart_check_ready (context=0x55df71511c80) at ../src/core/restart.c:58
        context = 0x55df71511c80
        error = 0x0
        length = 7
        line = <optimized out>
#32 restart_helper_read_line_callback (source_object=<optimized out>, res=<optimized out>, user_data=0x55df71511c80) at ../src/core/restart.c:92
        context = 0x55df71511c80
        error = 0x0
        length = 7
        line = <optimized out>
#33 0x00007f82020cb7c3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#34 0x00007f82020cc3b3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#35 0x00007f820206f187 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#36 0x00007f8202067d52 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#37 0x00007f82020cb7c3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#38 0x00007f82020cc3b3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#39 0x00007f8202067766 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#40 0x00007f820209801a in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#41 0x00007f82020cb7c3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#42 0x00007f82020cc3b3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#43 0x00007f82020964e0 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#44 0x00007f8202096559 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#45 0x00007f8201f2b499 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f8201f2e607 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f8201f2eebf in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #48 0x00007f82018d71a5 in meta_context_run_main_loop (context=context@entry=0x55df71511c80, error=error@entry=0x7ffdc8704f00) at ../src/core/meta-context.c:482
        priv = 0x55df71511c00
        __func__ = "meta_context_run_main_loop"
#49 0x000055df70dab99f in main (argc=<optimized out>, argv=<optimized out>) at ../src/main.c:683
        context = 0x55df71511c80
        error = 0x0
        ecode = 0
A debugging session is active.

    Inferior 1 [process 2890] will be detached.

Quit anyway? (y or n) [answered Y; input not from terminal]
[Inferior 1 (process 2890) detached]
[Thread 0x7f32613ff6c0 (LWP 4349) exited]
[New Thread 0x7f32613ff6c0 (LWP 4467)]
[New Thread 0x7f327effd6c0 (LWP 4482)]
[Thread 0x7f327effd6c0 (LWP 4482) exited]
[Thread 0x7f32613ff6c0 (LWP 4467) exited]
[New Thread 0x7f32613ff6c0 (LWP 4586)]
[New Thread 0x7f327effd6c0 (LWP 4587)]
[Thread 0x7f32613ff6c0 (LWP 4586) exited]
[Thread 0x7f327effd6c0 (LWP 4587) exited]
[New Thread 0x7f327effd6c0 (LWP 4616)]
[New Thread 0x7f32613ff6c0 (LWP 4617)]
[Thread 0x7f327effd6c0 (LWP 4616) exited]
[Thread 0x7f32613ff6c0 (LWP 4617) exited]
[Detaching after fork from child process 4618]
[New Thread 0x7f32613ff6c0 (LWP 4620)]
[New Thread 0x7f327effd6c0 (LWP 4621)]
[Thread 0x7f32613ff6c0 (LWP 4620) exited]
[Thread 0x7f327effd6c0 (LWP 4621) exited]
[New Thread 0x7f327effd6c0 (LWP 4665)]
[New Thread 0x7f32613ff6c0 (LWP 4666)]
[Thread 0x7f327effd6c0 (LWP 4665) exited]
[New Thread 0x7f327effd6c0 (LWP 4667)]
[New Thread 0x7f325933c6c0 (LWP 4668)]
[Thread 0x7f32613ff6c0 (LWP 4666) exited]
[Thread 0x7f327effd6c0 (LWP 4667) exited]
[Thread 0x7f325933c6c0 (LWP 4668) exited]
[Detaching after fork from child process 4669]
[New Thread 0x7f325933c6c0 (LWP 4671)]
[New Thread 0x7f327effd6c0 (LWP 4672)]
[Thread 0x7f325933c6c0 (LWP 4671) exited]
[Thread 0x7f327effd6c0 (LWP 4672) exited]

Thread 1 "gnome-shell" received signal SIGSEGV, Segmentation fault.
0x00007f328636ff63 in _XSend () from /lib/x86_64-linux-gnu/libX11.so.6
#0  0x00007f328636ff63 in _XSend () at /lib/x86_64-linux-gnu/libX11.so.6
#1  0x00007f3286366331 in XQueryExtension () at /lib/x86_64-linux-gnu/libX11.so.6
#2  0x00007f3283ca1d66 in  () at /lib/x86_64-linux-gnu/libXext.so.6
#3  0x00007f3283ca24b4 in XSyncTriggerFence () at /lib/x86_64-linux-gnu/libXext.so.6 #4  0x00007f328690a340 in meta_sync_free (self=0x5630ba24b0e0) at ../src/compositor/meta-sync-ring.c:392
        i = 0
        ring = 0x7f3286a50800 <meta_sync_ring>
        __func__ = "meta_sync_ring_destroy"
#5  meta_sync_ring_destroy () at ../src/compositor/meta-sync-ring.c:470
        i = 0
        ring = 0x7f3286a50800 <meta_sync_ring>
        __func__ = "meta_sync_ring_destroy"
#6  0x00007f3286908da5 in meta_compositor_x11_dispose (object=0x5630ba21f910) at ../src/compositor/meta-compositor-x11.c:520
        compositor_x11 = 0x5630ba21f910
        compositor = 0x5630ba21f910
        stage = 0x5630b9e784d0
#7  0x00007f3286fb8d0a in g_object_run_dispose () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #8  0x00007f32868aca19 in meta_compositor_destroy (compositor=0x5630ba21f910) at ../src/compositor/compositor.c:198 #9  0x00007f32868cc08d in meta_display_close (display=0x5630b98e87b0, timestamp=<optimized out>) at ../src/core/display.c:1178
        _pp = 0x5630b98e88f0
        _ptr = <optimized out>
        compositor = <optimized out>
        laters = 0x5630ba20f070
#10 0x00007f32872274ae in shell_global_reexec_self (global=0x5630b9eb9330) at ../src/shell-global.c:1339
        arr = 0x5630bfd46db0
        len = 21
        meta_context = <optimized out>
        buf = 0x5630bf010630 "/usr/bin/gnome-shell"
        buf_p = <optimized out>
        buf_end = <optimized out>
        error = 0x0
#11 0x00007f3285ee5f7a in  () at /lib/x86_64-linux-gnu/libffi.so.8
#12 0x00007f3285ee540e in  () at /lib/x86_64-linux-gnu/libffi.so.8
#13 0x00007f3285ee5b0d in ffi_call () at /lib/x86_64-linux-gnu/libffi.so.8
#14 0x00007f3286d13fa7 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#15 0x00007f3286d14698 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#16 0x00007f3283f96620 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#17 0x00007f3283f89d67 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#18 0x00007f3283f95de3 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#19 0x00007f3283f96267 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#20 0x00007f3283f9682c in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#21 0x00007f328403fb1d in JS_CallFunctionValue(JSContext*, JS::Handle<JSObject*>, JS::Handle<JS::Value>, JS::HandleValueArray const&, JS::MutableHandle<JS::Value>) () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#22 0x00007f3286cf0ed1 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#23 0x00007f3286d44884 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#24 0x00007f3286fb23f8 in g_closure_invoke () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#25 0x00007f3286fc501c in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#26 0x00007f3286fc61b1 in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#27 0x00007f3286fcc552 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #28 0x00007f3286fcc5ff in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #29 0x00007f32868cc2fe in meta_display_request_restart (display=display@entry=0x5630b98e87b0) at ../src/core/display.c:2601
        result = 0
#30 0x00007f32868e15b3 in restart_check_ready (context=0x5630b9810c80) at ../src/core/restart.c:64
        display = 0x5630b98e87b0
        context = 0x5630b9810c80
        error = 0x0
        length = 7
        line = <optimized out>
#31 restart_check_ready (context=0x5630b9810c80) at ../src/core/restart.c:58
        context = 0x5630b9810c80
        error = 0x0
        length = 7
        line = <optimized out>
#32 restart_helper_read_line_callback (source_object=<optimized out>, res=<optimized out>, user_data=0x5630b9810c80) at ../src/core/restart.c:92
        context = 0x5630b9810c80
        error = 0x0
        length = 7
        line = <optimized out>
#33 0x00007f32870af7c3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#34 0x00007f32870b03b3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#35 0x00007f3287053187 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#36 0x00007f328704bd52 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#37 0x00007f32870af7c3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#38 0x00007f32870b03b3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#39 0x00007f328704b766 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#40 0x00007f328707c01a in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#41 0x00007f32870af7c3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#42 0x00007f32870b03b3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#43 0x00007f328707a4e0 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#44 0x00007f328707a559 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#45 0x00007f3286eaf499 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f3286eb2607 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f3286eb2ebf in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #48 0x00007f32868d71a5 in meta_context_run_main_loop (context=context@entry=0x5630b9810c80, error=error@entry=0x7ffe570e6770) at ../src/core/meta-context.c:482
        priv = 0x5630b9810c00
        __func__ = "meta_context_run_main_loop"
#49 0x00005630b7a3099f in main (argc=<optimized out>, argv=<optimized out>) at ../src/main.c:683
        context = 0x5630b9810c80
        error = 0x0
        ecode = 0
A debugging session is active.

    Inferior 1 [process 2402] will be detached.

Quit anyway? (y or n) [answered Y; input not from terminal]
[Inferior 1 (process 2402) detached]
[New Thread 0x7f94da7fd6c0 (LWP 8644)]
[New Thread 0x7f94c8dfe6c0 (LWP 8645)]
[Thread 0x7f94da7fd6c0 (LWP 8644) exited]
[New Thread 0x7f94da7fd6c0 (LWP 8646)]
[New Thread 0x7f94913fb6c0 (LWP 8647)]
[Thread 0x7f94c8dfe6c0 (LWP 8645) exited]
[Thread 0x7f94da7fd6c0 (LWP 8646) exited]
[Thread 0x7f94913fb6c0 (LWP 8647) exited]
[Detaching after fork from child process 8649]
[New Thread 0x7f94913fb6c0 (LWP 8651)]
[New Thread 0x7f94da7fd6c0 (LWP 8652)]
[Thread 0x7f94913fb6c0 (LWP 8651) exited]
[Thread 0x7f94da7fd6c0 (LWP 8652) exited]

Thread 1 "gnome-shell" received signal SIGSEGV, Segmentation fault.
0x00007f94e1abcf63 in _XSend () from /lib/x86_64-linux-gnu/libX11.so.6
#0  0x00007f94e1abcf63 in _XSend () at /lib/x86_64-linux-gnu/libX11.so.6
#1  0x00007f94e1ab3331 in XQueryExtension () at /lib/x86_64-linux-gnu/libX11.so.6
#2  0x00007f94df2b7d66 in  () at /lib/x86_64-linux-gnu/libXext.so.6
#3  0x00007f94df2b85f4 in XSyncDestroyFence () at /lib/x86_64-linux-gnu/libXext.so.6 #4  0x00007f94e210a362 in meta_sync_free (self=0x55d3246b6e60) at ../src/compositor/meta-sync-ring.c:400
        i = 0
        ring = 0x7f94e2250800 <meta_sync_ring>
        __func__ = "meta_sync_ring_destroy"
#5  meta_sync_ring_destroy () at ../src/compositor/meta-sync-ring.c:470
        i = 0
        ring = 0x7f94e2250800 <meta_sync_ring>
        __func__ = "meta_sync_ring_destroy"
#6  0x00007f94e2108da5 in meta_compositor_x11_dispose (object=0x55d32468b320) at ../src/compositor/meta-compositor-x11.c:520
        compositor_x11 = 0x55d32468b320
        compositor = 0x55d32468b320
        stage = 0x55d3242e9b00
#7  0x00007f94e2b8ad0a in g_object_run_dispose () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #8  0x00007f94e20aca19 in meta_compositor_destroy (compositor=0x55d32468b320) at ../src/compositor/compositor.c:198 #9  0x00007f94e20cc08d in meta_display_close (display=0x55d323d55930, timestamp=<optimized out>) at ../src/core/display.c:1178
        _pp = 0x55d323d55a70
        _ptr = <optimized out>
        compositor = <optimized out>
        laters = 0x55d32468bf50
#10 0x00007f94e28274ae in shell_global_reexec_self (global=0x55d324320b80) at ../src/shell-global.c:1339
        arr = 0x7f94c4470670
        len = 21
        meta_context = <optimized out>
        buf = 0x55d32514b850 "/usr/bin/gnome-shell"
        buf_p = <optimized out>
        buf_end = <optimized out>
        error = 0x0
#11 0x00007f94e1630f7a in  () at /lib/x86_64-linux-gnu/libffi.so.8
#12 0x00007f94e163040e in  () at /lib/x86_64-linux-gnu/libffi.so.8
#13 0x00007f94e1630b0d in ffi_call () at /lib/x86_64-linux-gnu/libffi.so.8
#14 0x00007f94e23cbfa7 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#15 0x00007f94e23cc698 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#16 0x00007f94df596620 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#17 0x00007f94df589d67 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#18 0x00007f94df595de3 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#19 0x00007f94df596267 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#20 0x00007f94df59682c in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#21 0x00007f94df63fb1d in JS_CallFunctionValue(JSContext*, JS::Handle<JSObject*>, JS::Handle<JS::Value>, JS::HandleValueArray const&, JS::MutableHandle<JS::Value>) () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#22 0x00007f94e23a8ed1 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#23 0x00007f94e23fc884 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#24 0x00007f94e2b843f8 in g_closure_invoke () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#25 0x00007f94e2b9701c in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#26 0x00007f94e2b981b1 in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#27 0x00007f94e2b9e552 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #28 0x00007f94e2b9e5ff in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #29 0x00007f94e20cc2fe in meta_display_request_restart (display=display@entry=0x55d323d55930) at ../src/core/display.c:2601
        result = 0
#30 0x00007f94e20e15b3 in restart_check_ready (context=0x55d323c7dc80) at ../src/core/restart.c:64
        display = 0x55d323d55930
        context = 0x55d323c7dc80
        error = 0x0
        length = 7
        line = <optimized out>
#31 restart_check_ready (context=0x55d323c7dc80) at ../src/core/restart.c:58
        context = 0x55d323c7dc80
        error = 0x0
        length = 7
        line = <optimized out>
#32 restart_helper_read_line_callback (source_object=<optimized out>, res=<optimized out>, user_data=0x55d323c7dc80) at ../src/core/restart.c:92
        context = 0x55d323c7dc80
        error = 0x0
        length = 7
        line = <optimized out>
#33 0x00007f94e26cb7c3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#34 0x00007f94e26cc3b3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#35 0x00007f94e266f187 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#36 0x00007f94e2667d52 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#37 0x00007f94e26cb7c3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#38 0x00007f94e26cc3b3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#39 0x00007f94e2667766 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#40 0x00007f94e269801a in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#41 0x00007f94e26cb7c3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#42 0x00007f94e26cc3b3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#43 0x00007f94e26964e0 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#44 0x00007f94e2696559 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#45 0x00007f94e252b499 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f94e252e607 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f94e252eebf in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #48 0x00007f94e20d71a5 in meta_context_run_main_loop (context=context@entry=0x55d323c7dc80, error=error@entry=0x7fff63267350) at ../src/core/meta-context.c:482
        priv = 0x55d323c7dc00
        __func__ = "meta_context_run_main_loop"
#49 0x000055d322dac99f in main (argc=<optimized out>, argv=<optimized out>) at ../src/main.c:683
        context = 0x55d323c7dc80
        error = 0x0
        ecode = 0
A debugging session is active.

    Inferior 1 [process 6199] will be detached.

Quit anyway? (y or n) [answered Y; input not from terminal]
[Inferior 1 (process 6199) detached]
[New Thread 0x7f744f7fe6c0 (LWP 4460)]
[New Thread 0x7f744cff96c0 (LWP 4461)]
[Thread 0x7f744f7fe6c0 (LWP 4460) exited]
[New Thread 0x7f744f7fe6c0 (LWP 4462)]
[New Thread 0x7f744effd6c0 (LWP 4463)]
[Thread 0x7f744cff96c0 (LWP 4461) exited]
[Thread 0x7f744f7fe6c0 (LWP 4462) exited]
[Thread 0x7f744effd6c0 (LWP 4463) exited]
[Detaching after fork from child process 4465]
[New Thread 0x7f744effd6c0 (LWP 4467)]
[New Thread 0x7f744f7fe6c0 (LWP 4468)]
[Thread 0x7f744effd6c0 (LWP 4467) exited]
[Thread 0x7f744f7fe6c0 (LWP 4468) exited]

Thread 1 "gnome-shell" received signal SIGSEGV, Segmentation fault.
0x00007f748bb6ff63 in _XSend () from /lib/x86_64-linux-gnu/libX11.so.6
#0  0x00007f748bb6ff63 in _XSend () at /lib/x86_64-linux-gnu/libX11.so.6
#1  0x00007f748bb66331 in XQueryExtension () at /lib/x86_64-linux-gnu/libX11.so.6
#2  0x00007f74890c0d66 in  () at /lib/x86_64-linux-gnu/libXext.so.6
#3  0x00007f74890c15f4 in XSyncDestroyFence () at /lib/x86_64-linux-gnu/libXext.so.6 #4  0x00007f748c10a362 in meta_sync_free (self=0x55d9742cab30) at ../src/compositor/meta-sync-ring.c:400
        i = 0
        ring = 0x7f748c250800 <meta_sync_ring>
        __func__ = "meta_sync_ring_destroy"
#5  meta_sync_ring_destroy () at ../src/compositor/meta-sync-ring.c:470
        i = 0
        ring = 0x7f748c250800 <meta_sync_ring>
        __func__ = "meta_sync_ring_destroy"
#6  0x00007f748c108da5 in meta_compositor_x11_dispose (object=0x55d97429f0a0) at ../src/compositor/meta-compositor-x11.c:520
        compositor_x11 = 0x55d97429f0a0
        compositor = 0x55d97429f0a0
        stage = 0x55d973ed5630
#7  0x00007f748c7d4d0a in g_object_run_dispose () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #8  0x00007f748c0aca19 in meta_compositor_destroy (compositor=0x55d97429f0a0) at ../src/compositor/compositor.c:198 #9  0x00007f748c0cc08d in meta_display_close (display=0x55d973967410, timestamp=<optimized out>) at ../src/core/display.c:1178
        _pp = 0x55d973967550
        _ptr = <optimized out>
        compositor = <optimized out>
        laters = 0x55d97429fcd0
#10 0x00007f748ca274ae in shell_global_reexec_self (global=0x55d973f38240) at ../src/shell-global.c:1339
        arr = 0x7f746c074730
        len = 21
        meta_context = <optimized out>
        buf = 0x55d975b2b910 "/usr/bin/gnome-shell"
        buf_p = <optimized out>
        buf_end = <optimized out>
        error = 0x0
#11 0x00007f748c266f7a in  () at /lib/x86_64-linux-gnu/libffi.so.8
#12 0x00007f748c26640e in  () at /lib/x86_64-linux-gnu/libffi.so.8
#13 0x00007f748c266b0d in ffi_call () at /lib/x86_64-linux-gnu/libffi.so.8
#14 0x00007f748c52ffa7 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#15 0x00007f748c530698 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#16 0x00007f7489796620 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#17 0x00007f7489789d67 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#18 0x00007f7489795de3 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#19 0x00007f7489796267 in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#20 0x00007f748979682c in  () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#21 0x00007f748983fb1d in JS_CallFunctionValue(JSContext*, JS::Handle<JSObject*>, JS::Handle<JS::Value>, JS::HandleValueArray const&, JS::MutableHandle<JS::Value>) () at /lib/x86_64-linux-gnu/libmozjs-102.so.0
#22 0x00007f748c50ced1 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#23 0x00007f748c560884 in  () at /lib/x86_64-linux-gnu/libgjs.so.0
#24 0x00007f748c7ce3f8 in g_closure_invoke () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#25 0x00007f748c7e101c in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#26 0x00007f748c7e21b1 in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#27 0x00007f748c7e8552 in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #28 0x00007f748c7e85ff in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0 #29 0x00007f748c0cc2fe in meta_display_request_restart (display=display@entry=0x55d973967410) at ../src/core/display.c:2601
        result = 0
#30 0x00007f748c0e15b3 in restart_check_ready (context=0x55d97388fc80) at ../src/core/restart.c:64
        display = 0x55d973967410
        context = 0x55d97388fc80
        error = 0x0
        length = 7
        line = <optimized out>
#31 restart_check_ready (context=0x55d97388fc80) at ../src/core/restart.c:58
        context = 0x55d97388fc80
        error = 0x0
        length = 7
        line = <optimized out>
#32 restart_helper_read_line_callback (source_object=<optimized out>, res=<optimized out>, user_data=0x55d97388fc80) at ../src/core/restart.c:92
        context = 0x55d97388fc80
        error = 0x0
        length = 7
        line = <optimized out>
#33 0x00007f748c8cb7c3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#34 0x00007f748c8cc3b3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#35 0x00007f748c86f187 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#36 0x00007f748c867d52 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#37 0x00007f748c8cb7c3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#38 0x00007f748c8cc3b3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#39 0x00007f748c867766 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#40 0x00007f748c89801a in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#41 0x00007f748c8cb7c3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#42 0x00007f748c8cc3b3 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#43 0x00007f748c8964e0 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#44 0x00007f748c896559 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#45 0x00007f748c6cb499 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f748c6ce607 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f748c6ceebf in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #48 0x00007f748c0d71a5 in meta_context_run_main_loop (context=context@entry=0x55d97388fc80, error=error@entry=0x7ffe77c9f4f0) at ../src/core/meta-context.c:482
        priv = 0x55d97388fc00
        __func__ = "meta_context_run_main_loop"
#49 0x000055d97367199f in main (argc=<optimized out>, argv=<optimized out>) at ../src/main.c:683
        context = 0x55d97388fc80
        error = 0x0
        ecode = 0
A debugging session is active.

    Inferior 1 [process 2378] will be detached.

Quit anyway? (y or n) [answered Y; input not from terminal]
[Inferior 1 (process 2378) detached]


The journalctl logs:

system@station:~$ sudo journalctl /usr/bin/gnome-shell -b0 | grep -A 30 "== Stack trace for context"

[sudo] Passwort für system:
Aug 29 11:38:00 station gnome-shell[2402]: == Stack trace for context 0x5630b9eba5b0 == Aug 29 11:38:00 station gnome-shell[2402]: #0   5630ba35c7c8 i resource:///org/gnome/shell/ui/main.js:273 (3693153ba5b0 @ 12) Aug 29 11:38:02 station gnome-shell[4710]: Running GNOME Shell (using mutter 44.3) as a X11 window and compositing manager Aug 29 11:38:02 station gnome-shell[4710]: Unset XDG_SESSION_ID, getCurrentSessionProxy() called outside a user session. Asking logind directly.
Aug 29 11:38:02 station gnome-shell[4710]: Will monitor session 3
Aug 29 11:38:03 station gnome-shell[4710]: Telepathy is not available, chat integration will be disabled. Aug 29 11:38:03 station gnome-shell[4710]: Extension apps-m...@gnome-shell-extensions.gcampax.github.com already installed in /home/system/.local/share/gnome-shell/extensions/apps-m...@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/apps-m...@gnome-shell-extensions.gcampax.github.com will not be loaded Aug 29 11:38:03 station gnome-shell[4710]: Extension auto-move-wind...@gnome-shell-extensions.gcampax.github.com already installed in /home/system/.local/share/gnome-shell/extensions/auto-move-wind...@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/auto-move-wind...@gnome-shell-extensions.gcampax.github.com will not be loaded Aug 29 11:38:03 station gnome-shell[4710]: Extension drive-m...@gnome-shell-extensions.gcampax.github.com already installed in /home/system/.local/share/gnome-shell/extensions/drive-m...@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/drive-m...@gnome-shell-extensions.gcampax.github.com will not be loaded Aug 29 11:38:03 station gnome-shell[4710]: Extension launch-new-insta...@gnome-shell-extensions.gcampax.github.com already installed in /home/system/.local/share/gnome-shell/extensions/launch-new-insta...@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/launch-new-insta...@gnome-shell-extensions.gcampax.github.com will not be loaded Aug 29 11:38:03 station gnome-shell[4710]: Extension native-window-placem...@gnome-shell-extensions.gcampax.github.com already installed in /home/system/.local/share/gnome-shell/extensions/native-window-placem...@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/native-window-placem...@gnome-shell-extensions.gcampax.github.com will not be loaded Aug 29 11:38:03 station gnome-shell[4710]: Extension places-m...@gnome-shell-extensions.gcampax.github.com already installed in /home/system/.local/share/gnome-shell/extensions/places-m...@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/places-m...@gnome-shell-extensions.gcampax.github.com will not be loaded Aug 29 11:38:03 station gnome-shell[4710]: Extension screenshot-window-si...@gnome-shell-extensions.gcampax.github.com already installed in /home/system/.local/share/gnome-shell/extensions/screenshot-window-si...@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/screenshot-window-si...@gnome-shell-extensions.gcampax.github.com will not be loaded Aug 29 11:38:03 station gnome-shell[4710]: Extension user-th...@gnome-shell-extensions.gcampax.github.com already installed in /home/system/.local/share/gnome-shell/extensions/user-th...@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/user-th...@gnome-shell-extensions.gcampax.github.com will not be loaded Aug 29 11:38:03 station gnome-shell[4710]: Extension window-l...@gnome-shell-extensions.gcampax.github.com already installed in /home/system/.local/share/gnome-shell/extensions/window-l...@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/window-l...@gnome-shell-extensions.gcampax.github.com will not be loaded Aug 29 11:38:03 station gnome-shell[4710]: Extension windowsnaviga...@gnome-shell-extensions.gcampax.github.com already installed in /home/system/.local/share/gnome-shell/extensions/windowsnaviga...@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/windowsnaviga...@gnome-shell-extensions.gcampax.github.com will not be loaded Aug 29 11:38:03 station gnome-shell[4710]: Extension workspace-indica...@gnome-shell-extensions.gcampax.github.com already installed in /home/system/.local/share/gnome-shell/extensions/workspace-indica...@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/workspace-indica...@gnome-shell-extensions.gcampax.github.com will not be loaded Aug 29 11:38:03 station gnome-shell[4710]: Error looking up permission: GDBus.Error:org.freedesktop.portal.Error.NotFound: No entry for geolocation Aug 29 11:38:04 station gnome-shell[4710]: Property 'libinput Accel Profile Enabled Default' for device 'Logitech Wireless Mouse' returned 3 items, expected 2 Aug 29 11:38:04 station gnome-shell[4710]: Property 'libinput Accel Profiles Available' for device 'Logitech Wireless Mouse' returned 3 items, expected 2 Aug 29 11:38:05 station gnome-shell[4710]: Ignored exception from dbus method: Gio.DBusError: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: Das Objekt existiert nicht am Pfad »/org/gnome/SettingsDaemon/MediaKeys« Aug 29 11:38:05 station gnome-shell[4710]: Can't update stage views actor <unnamed>[<Gjs_ui_workspacesView_WorkspacesDisplay>:0x55aef1064d20] is on because it needs an allocation. Aug 29 11:38:05 station gnome-shell[4710]: Can't update stage views actor <unnamed>[<Gjs_ui_workspacesView_WorkspacesView>:0x55aef3c108c0] is on because it needs an allocation. Aug 29 11:38:05 station gnome-shell[4710]: Can't update stage views actor <unnamed>[<Gjs_ui_workspace_Workspace>:0x55aef3bf2d80] is on because it needs an allocation. Aug 29 11:38:05 station gnome-shell[4710]: Can't update stage views actor <unnamed>[<ClutterActor>:0x55aef3c1a9d0] is on because it needs an allocation. Aug 29 11:38:05 station gnome-shell[4710]: Can't update stage views actor <unnamed>[<Gjs_ui_windowPreview_WindowPreview>:0x55aef3c2d440] is on because it needs an allocation. Aug 29 11:38:05 station gnome-shell[4710]: Can't update stage views actor <unnamed>[<ClutterActor>:0x55aef3c2dca0] is on because it needs an allocation. Aug 29 11:38:05 station gnome-shell[4710]: Can't update stage views actor <unnamed>[<ClutterClone>:0x55aef3c2e830] is on because it needs an allocation. Aug 29 11:38:05 station gnome-shell[4710]: Can't update stage views actor <unnamed>[<StIcon>:0x55aef3c30330] is on because it needs an allocation. Aug 29 11:38:05 station gnome-shell[4710]: Can't update stage views actor <unnamed>[<Gjs_ui_windowPreview_WindowPreview>:0x55aef3c43b80] is on because it needs an allocation. Aug 29 11:38:05 station gnome-shell[4710]: Can't update stage views actor <unnamed>[<ClutterActor>:0x55aef3c44530] is on because it needs an allocation.

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