Thread 1 "gjs" received signal SIGSEGV, Segmentation fault.
0x00007f5bf91f6426 in gtk_accessible_get_widget (accessible=accessible@entry=0x2ee8dd0) at gtkaccessible.c:218
218   g_return_val_if_fail (GTK_IS_ACCESSIBLE (accessible), NULL);
(gdb) bt
#0  0x00007f5bf91f6426 in gtk_accessible_get_widget (accessible=accessible@entry=0x2ee8dd0) at gtkaccessible.c:218
#1  0x00007f5bf918da6a in visibility_changed (object=0x2b81860 [GtkScrollbar], pspec=<optimized out>, user_data=0x2ee8dd0)
    at a11y/gtkscrolledwindowaccessible.c:43
#5  0x00007f5bf792d40f in <emit signal notify:visible on instance 0x2b81860 [GtkScrollbar]> (instance=instance@entry=0x2b81860, signal_id=<optimized out>, detail=<optimized out>) at gsignal.c:3447
    #2  0x00007f5bf79123c5 in g_closure_invoke (closure=0x32c3430, return_value=return_value@entry=0x0, n_param_values=2, param_values=param_values@entry=0x7ffe5fc2c760, invocation_hint=invocation_hint@entry=0x7ffe5fc2c6e0) at gclosure.c:804
    #3  0x00007f5bf79243d2 in signal_emit_unlocked_R (node=node@entry=0x223b2b0, detail=detail@entry=402, instance=instance@entry=0x2b81860, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7ffe5fc2c760) at gsignal.c:3635
    #4  0x00007f5bf792d02c in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffe5fc2c920) at gsignal.c:3391
#6  0x00007f5bf79167f4 in g_object_dispatch_properties_changed (object=0x2b81860 [GtkScrollbar], n_pspecs=<optimized out>, pspecs=<optimized out>) at gobject.c:1064
#7  0x00007f5bf7918dc9 in g_object_notify_by_pspec (pspec=<optimized out>, object=0x2b81860 [GtkScrollbar]) at gobject.c:1157
#8  0x00007f5bf7918dc9 in g_object_notify_by_pspec (object=object@entry=0x2b81860 [GtkScrollbar], pspec=<optimized out>) at gobject.c:1267
#9  0x00007f5bf94782d8 in gtk_widget_hide (widget=0x2b81860 [GtkScrollbar]) at gtkwidget.c:4896
#10 0x00007f5bf94783e1 in gtk_widget_dispose (object=0x2b81860 [GtkScrollbar]) at gtkwidget.c:12061
#11 0x00007f5bf7917055 in g_object_unref (_object=0x2b81860) at gobject.c:3148
#12 0x00007f5bf9a4036d in release_native_object(ObjectInstance*) (priv=priv@entry=0x2b91a20) at gi/object.cpp:1257
#13 0x00007f5bf9a4369d in update_heap_wrapper_weak_pointers(JSRuntime*, gpointer) (gobj=<optimized out>) at gi/object.cpp:1419
#14 0x00007f5bf9a4369d in update_heap_wrapper_weak_pointers(JSRuntime*, gpointer) (rt=<optimized out>, data=<optimized out>)
    at gi/object.cpp:1345
#15 0x00007f5bf73f404c in  () at /lib/libmozjs-38.so
#16 0x00007f5bf73fc395 in  () at /lib/libmozjs-38.so
#17 0x00007f5bf73fd2fa in  () at /lib/libmozjs-38.so
#18 0x00007f5bf73fdcb2 in  () at /lib/libmozjs-38.so
#19 0x00007f5bf73fdf37 in  () at /lib/libmozjs-38.so
#20 0x00007f5bf73fe2bf in  () at /lib/libmozjs-38.so
#21 0x00007f5bf9a58886 in gjs_gc_if_needed(JSContext*) (context=0x2263d20) at gjs/jsapi-util.cpp:814
#22 0x00007f5bf9a4e694 in trigger_gc_if_needed(gpointer) (user_data=0x2240050) at gjs/context.cpp:628
#23 0x00007f5bf763507a in g_main_context_dispatch (context=0x2375850) at gmain.c:3234
#24 0x00007f5bf763507a in g_main_context_dispatch (context=context@entry=0x2375850) at gmain.c:3899
#25 0x00007f5bf7635430 in g_main_context_iterate (context=context@entry=0x2375850, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3972
#26 0x00007f5bf76354dc in g_main_context_iteration (context=context@entry=0x2375850, may_block=may_block@entry=1) at gmain.c:4033
---Type <return> to continue, or q <return> to quit---
#27 0x00007f5bf7bf964d in g_application_run (application=0x2433160 [EknApplication], argc=1, argv=0x239aee0) at gapplication.c:2381
#28 0x0000003faa205ed8 in ffi_call_unix64 () at ../libffi-3.2.1/src/x86/unix64.S:76
#29 0x0000003faa20593a in ffi_call (cif=cif@entry=0x242ef18, fn=<optimized out>, rvalue=<optimized out>, 
    rvalue@entry=0x7ffe5fc2d4f0, avalue=avalue@entry=0x7ffe5fc2d3b0) at /usr/src/debug/libffi/3.2.1-r0/libffi-3.2.1/src/x86/ffi64.c:525
#30 0x00007f5bf9a3825f in gjs_invoke_c_function(JSContext*, Function*, JS::HandleObject, JS::HandleValueArray const&, mozilla::Maybe<JS::MutableHandle<JS::Value> >&, GIArgument*) (context=context@entry=0x2263d20, function=function@entry=0x242ef00, obj=..., 
    obj@entry=..., args=..., js_rval=..., r_value=r_value@entry=0x0) at gi/function.cpp:1021
#31 0x00007f5bf9a39944 in function_call(JSContext*, unsigned int, JS::Value*) (context=0x2263d20, js_argc=1, vp=0x22b7a20)
    at gi/function.cpp:1341
#32 0x00007f5bf70a58e2 in  () at /lib/libmozjs-38.so
#33 0x00007f5bf709a05f in  () at /lib/libmozjs-38.so
#34 0x00007f5bf70a55a1 in  () at /lib/libmozjs-38.so
#35 0x00007f5bf70b325a in  () at /lib/libmozjs-38.so
#36 0x00007f5bf70b3606 in  () at /lib/libmozjs-38.so
#37 0x00007f5bf73abfa5 in  () at /lib/libmozjs-38.so
#38 0x00007f5bf73ac107 in JS::Evaluate(JSContext*, JS::Handle<JSObject*>, JS::ReadOnlyCompileOptions const&, char const*, unsigned long, JS::MutableHandle<JS::Value>) () at /lib/libmozjs-38.so
#39 0x00007f5bf9a58ba1 in gjs_eval_with_scope(JSContext*, JS::HandleObject, char const*, ssize_t, char const*, JS::MutableHandleValue) (context=0x2263d20, object=..., script=script@entry=0x223b5a0 "const Gio = imports.gi.Gio;\nGio.Resource.load('/usr/share/eos-knowledge/eos-knowledge.gresource')._register();\nimports.searchPath.unshift('resource:///com/endlessm/knowledge/js');\n\nconst Application ="..., script_len=<optimized out>, script_len@entry=450, filename=filename@entry=0x401df4 "<command line>", retval=retval@entry=...) at gjs/jsapi-util.cpp:938
#40 0x00007f5bf9a4f026 in gjs_context_eval(GjsContext*, char const*, gssize, char const*, int*, GError**) (js_context=js_context@entry=0x2240050 [GjsContext], script=0x223b5a0 "const Gio = imports.gi.Gio;\nGio.Resource.load('/usr/share/eos-knowledge/eos-knowledge.gresource')._register();\nimports.searchPath.unshift('resource:///com/endlessm/knowledge/js');\n\nconst Application ="..., script_len=450, filename=filename@entry=0x401df4 "<command line>", exit_status_p=exit_status_p@entry=0x7ffe5fc2e7f0, error=error@entry=0x7ffe5fc2e7a8)
    at gjs/context.cpp:765
#41 0x0000000000401998 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at gjs/console.cpp:281
