Application: kdeinit5 (kdeinit5), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fdb61a84780 (LWP 7434))]

Thread 6 (Thread 0x7fdb4bfc7700 (LWP 7436)):
#0  0x00007fdb601538dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fdb5e581b72 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fdb5e58364f in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fdb4eda3099 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#4  0x00007fdb604cbb0e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdb5dcc76aa in start_thread (arg=0x7fdb4bfc7700) at pthread_create.c:333
#6  0x00007fdb6015eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fdb40477700 (LWP 7452)):
#0  0x00007fdb5d2613ce in g_main_context_prepare (context=context@entry=0x7fdb300009b0, priority=priority@entry=0x7fdb40476cc0) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3397
#1  0x00007fdb5d261de8 in g_main_context_iterate (context=context@entry=0x7fdb300009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3788
#2  0x00007fdb5d261fcc in g_main_context_iteration (context=0x7fdb300009b0, may_block=1) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3869
#3  0x00007fdb60762c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdb607073e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdb604c6b44 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdb49eefcf7 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007fdb604cbb0e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdb5dcc76aa in start_thread (arg=0x7fdb40477700) at pthread_create.c:333
#9  0x00007fdb6015eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fdb3fc76700 (LWP 7453)):
#0  0x00007fdb5dccfbfa in __lll_unlock_wake () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:371
#1  0x00007fdb5dccb3f0 in __GI___pthread_mutex_unlock (decr=1, mutex=0x7fdb5f9a2a50) at pthread_mutex_unlock.c:57
#2  0x00007fdb5dccb3f0 in __GI___pthread_mutex_unlock (mutex=0x7fdb5f9a2a50) at pthread_mutex_unlock.c:315
#3  0x00007fdb5f718059 in  () at /usr/lib/nvidia-346/libGL.so.1
#4  0x00007fdb5f71c02b in  () at /usr/lib/nvidia-346/libGL.so.1
#5  0x00007fdb5c729fc0 in  () at /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#6  0x00007fdb5d2a52f0 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7fdb3fc75c30, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#7  0x00007fdb5d2a52f0 in g_wakeup_acknowledge (wakeup=0x7fdb440015b0) at /build/buildd/glib2.0-2.44.1/./glib/gwakeup.c:210
#8  0x00007fdb5d26196c in g_main_context_check (context=context@entry=0x7fdb380009b0, max_priority=2147483647, fds=fds@entry=0x7fdb380013c0, n_fds=n_fds@entry=1) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3600
#9  0x00007fdb5d261e60 in g_main_context_iterate (context=context@entry=0x7fdb380009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3805
#10 0x00007fdb5d261fcc in g_main_context_iteration (context=0x7fdb380009b0, may_block=1) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3869
#11 0x00007fdb60762c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fdb607073e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fdb604c6b44 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fdb604cbb0e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fdb5dcc76aa in start_thread (arg=0x7fdb3fc76700) at pthread_create.c:333
#16 0x00007fdb6015eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fdb3e677700 (LWP 7458)):
#0  0x00007fdb601538dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fdb5d261ebc in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7fdb340010e0, timeout=-1, context=0x270c810) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:4103
#2  0x00007fdb5d261ebc in g_main_context_iterate (context=0x270c810, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3803
#3  0x00007fdb5d262242 in g_main_loop_run (loop=0x26648d0) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:4002
#4  0x00007fdb3eb87af6 in gdbus_shared_thread_func (user_data=0x270c7e0) at /build/buildd/glib2.0-2.44.1/./gio/gdbusprivate.c:274
#5  0x00007fdb5d288955 in g_thread_proxy (data=0x270ec50) at /build/buildd/glib2.0-2.44.1/./glib/gthread.c:764
#6  0x00007fdb5dcc76aa in start_thread (arg=0x7fdb3e677700) at pthread_create.c:333
#7  0x00007fdb6015eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fdb3dc67700 (LWP 7459)):
[KCrash Handler]
#5  0x00007fdb600d71cb in malloc_consolidate (av=av@entry=0x7fdb28000020) at malloc.c:4136
#6  0x00007fdb600d9a34 in _int_malloc (av=av@entry=0x7fdb28000020, bytes=bytes@entry=2032) at malloc.c:3417
#7  0x00007fdb600dd0b5 in __libc_calloc (n=<optimized out>, elem_size=<optimized out>) at malloc.c:3213
#8  0x00007fdb5c72a249 in  () at /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#9  0x00007fdb5d2677f2 in g_malloc0 (n_bytes=2032) at /build/buildd/glib2.0-2.44.1/./glib/gmem.c:127
#10 0x00007fdb5d27ef5c in g_slice_free1 () at /build/buildd/glib2.0-2.44.1/./glib/gslice.c:519
#11 0x00007fdb5d27ef5c in g_slice_free1 (mem_size=<optimized out>, mem_block=0x7fdb34057b00) at /build/buildd/glib2.0-2.44.1/./glib/gslice.c:1088
#12 0x00007fdb5dcc6359 in __nptl_deallocate_tsd () at pthread_create.c:175
#13 0x00007fdb5dcc776d in start_thread () at ../sysdeps/unix/sysv/linux/exit-thread.h:36
#14 0x00007fdb5dcc776d in start_thread (arg=0x7fdb3dc67700) at pthread_create.c:346
#15 0x00007fdb6015eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fdb61a84780 (LWP 7434)):
[KCrash Handler]
#6  0x00007fdb6008d267 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x00007fdb6008eeca in __GI_abort () at abort.c:89
#8  0x00007fdb5d287b55 in g_assertion_message (domain=domain@entry=0x7fdb5d2a954e "GLib", file=file@entry=0x7fdb5d305210 "/build/buildd/glib2.0-2.44.1/./glib/gvarianttypeinfo.c", line=line@entry=184, func=func@entry=0x7fdb5d305430 <__FUNCTION__.4135> "g_variant_type_info_check", message=message@entry=0x3826bd0 "assertion failed: (0 <= index && index < 24)") at /build/buildd/glib2.0-2.44.1/./glib/gtestutils.c:2356
#9  0x00007fdb5d287bea in g_assertion_message_expr (domain=domain@entry=0x7fdb5d2a954e "GLib", file=file@entry=0x7fdb5d305210 "/build/buildd/glib2.0-2.44.1/./glib/gvarianttypeinfo.c", line=line@entry=184, func=func@entry=0x7fdb5d305430 <__FUNCTION__.4135> "g_variant_type_info_check", expr=expr@entry=0x7fdb5d3051d9 "0 <= index && index < 24") at /build/buildd/glib2.0-2.44.1/./glib/gtestutils.c:2371
#10 0x00007fdb5d2a3a0e in g_variant_type_info_check (info=info@entry=0x2402740, container_class=container_class@entry=0 '\000') at /build/buildd/glib2.0-2.44.1/./glib/gvarianttypeinfo.c:184
#11 0x00007fdb5d2a3a9b in g_variant_type_info_get_type_string (info=0x2402740) at /build/buildd/glib2.0-2.44.1/./glib/gvarianttypeinfo.c:198
#12 0x00007fdb5d2966a9 in g_variant_is_of_type (value=value@entry=0x26fff20, type=type@entry=0x3821c50) at /build/buildd/glib2.0-2.44.1/./glib/gvariant.c:2075
#13 0x00007fdb5d29b070 in valid_format_string (format_string=0x7fdb3ee3a557 "{ss}", single=single@entry=1, value=value@entry=0x26fff20) at /build/buildd/glib2.0-2.44.1/./glib/gvariant.c:4455
#14 0x00007fdb5d29c1b9 in g_variant_iter_next (iter=<optimized out>, format_string=0x7fdb3ee3a557 "{ss}") at /build/buildd/glib2.0-2.44.1/./glib/gvariant.c:5517
#15 0x00007fdb3ee2fcc8 in polkit_details_new_for_gvariant () at /usr/lib/x86_64-linux-gnu/libpolkit-gobject-1.so.0
#16 0x00007fdb3ee37d8b in polkit_authorization_result_new_for_gvariant () at /usr/lib/x86_64-linux-gnu/libpolkit-gobject-1.so.0
#17 0x00007fdb3ee2fffe in  () at /usr/lib/x86_64-linux-gnu/libpolkit-gobject-1.so.0
#18 0x00007fdb3eb1cdf7 in g_simple_async_result_complete (simple=0x2716ec0 [GSimpleAsyncResult]) at /build/buildd/glib2.0-2.44.1/./gio/gsimpleasyncresult.c:763
#19 0x00007fdb3eb84c41 in reply_cb (connection=<optimized out>, res=<optimized out>, user_data=0x2716ec0) at /build/buildd/glib2.0-2.44.1/./gio/gdbusproxy.c:2623
#20 0x00007fdb3eb1cdf7 in g_simple_async_result_complete (simple=0x2716f30 [GSimpleAsyncResult]) at /build/buildd/glib2.0-2.44.1/./gio/gsimpleasyncresult.c:763
#21 0x00007fdb3eb79eb2 in g_dbus_connection_call_done (source=<optimized out>, result=<optimized out>, user_data=0x7fdb34013a70) at /build/buildd/glib2.0-2.44.1/./gio/gdbusconnection.c:5508
#22 0x00007fdb3eb1cdf7 in g_simple_async_result_complete (simple=0x2717030 [GSimpleAsyncResult]) at /build/buildd/glib2.0-2.44.1/./gio/gsimpleasyncresult.c:763
#23 0x00007fdb3eb1ce59 in complete_in_idle_cb (data=<optimized out>) at /build/buildd/glib2.0-2.44.1/./gio/gsimpleasyncresult.c:775
#24 0x00007fdb5d261b4d in g_main_context_dispatch (context=0x3827ca0) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3122
#25 0x00007fdb5d261b4d in g_main_context_dispatch (context=context@entry=0x3827ca0) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3737
#26 0x00007fdb5d261f20 in g_main_context_iterate (context=0x3827ca0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3808
#27 0x00007fdb5d262242 in g_main_loop_run (loop=0x385dc90) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:4002
#28 0x00007fdb3ee31f08 in polkit_authority_check_authorization_sync () at /usr/lib/x86_64-linux-gnu/libpolkit-gobject-1.so.0
#29 0x00007fdb3f0526f1 in PolkitQt1::Authority::checkAuthorizationSync(QString const&, PolkitQt1::Subject const&, QFlags<PolkitQt1::Authority::AuthorizationFlag>) () at /usr/lib/x86_64-linux-gnu/libpolkit-qt5-core-1.so.1
#30 0x00007fdb3f26bd4c in KAuth::Polkit1Backend::actionStatus(QString const&) (this=<optimized out>, action=...) at ../../src/backends/polkit-1/Polkit1Backend.cpp:147
#31 0x00007fdb3f26c89e in KAuth::Polkit1Backend::checkForResultChanged() (this=0x2519b20) at ../../src/backends/polkit-1/Polkit1Backend.cpp:188
#32 0x00007fdb3f26d385 in KAuth::Polkit1Backend::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=0x1d0a, _c=7434, _id=6, _a=0xffffffffffffffff) at moc_Polkit1Backend.cpp:77
#33 0x00007fdb6073a9c9 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007fdb595e8504 in _g_closure_invoke_va (closure=0x1d0a, closure@entry=0x270d2a0, return_value=0x1d0a, return_value@entry=0x0, instance=0x6, instance@entry=0x26f6c40, args=0xffffffffffffffff, args@entry=0x7ffc13195b48, n_params=16752800, param_types=0x1) at /build/buildd/glib2.0-2.44.1/./gobject/gclosure.c:831
#35 0x00007fdb59601fa7 in g_signal_emit_valist (instance=0x26f6c40, signal_id=<optimized out>, detail=0, var_args=0x7ffc13195b48) at /build/buildd/glib2.0-2.44.1/./gobject/gsignal.c:3214
#36 0x00007fdb59602e4a in g_signal_emit_by_name (instance=0x1d0a, detailed_signal=0x1d0a <error: Cannot access memory at address 0x1d0a>) at /build/buildd/glib2.0-2.44.1/./gobject/gsignal.c:3401
#37 0x00007fdb574e5d90 in ffi_call_unix64 () at ../src/x86/unix64.S:76
#38 0x00007fdb574e57f8 in ffi_call (cif=cif@entry=0x7ffc13195ea0, fn=<optimized out>, rvalue=0x7ffc13195e00, avalue=avalue@entry=0x7ffc13195d80) at ../src/x86/ffi64.c:525
#43 0x00007fdb596028ff in <emit signal ??? on instance 0x26f7c60 [GDBusProxy]> (instance=instance@entry=0x26f7c60, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.44.1/./gobject/gsignal.c:3361
    #39 0x00007fdb595e8ae4 in g_cclosure_marshal_generic (closure=0x27116f0, return_gvalue=0x0, n_param_values=<optimized out>, param_values=<optimized out>, invocation_hint=<optimized out>, marshal_data=0x0) at /build/buildd/glib2.0-2.44.1/./gobject/gclosure.c:1448
    #40 0x00007fdb595e82d5 in g_closure_invoke (closure=0x27116f0, return_value=0x0, n_param_values=4, param_values=0x7ffc131960d0, invocation_hint=0x7ffc13196070) at /build/buildd/glib2.0-2.44.1/./gobject/gclosure.c:768
    #41 0x00007fdb595fa03c in signal_emit_unlocked_R (node=node@entry=0x26fb390, detail=detail@entry=0, instance=instance@entry=0x26f7c60, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7ffc131960d0) at /build/buildd/glib2.0-2.44.1/./gobject/gsignal.c:3549
    #42 0x00007fdb59602698 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffc13196290) at /build/buildd/glib2.0-2.44.1/./gobject/gsignal.c:3305
#44 0x00007fdb3eb8405c in on_signal_received (connection=<optimized out>, sender_name=0x7fdb3401f640 ":1.9", object_path=<optimized out>, interface_name=<optimized out>, signal_name=0x7fdb34057200 "Changed", parameters=0x7fdb280028d0, user_data=0x24025a0) at /build/buildd/glib2.0-2.44.1/./gio/gdbusproxy.c:917
#45 0x00007fdb3eb73e34 in emit_signal_instance_in_idle_cb (data=0x7fdb340138f0) at /build/buildd/glib2.0-2.44.1/./gio/gdbusconnection.c:3753
#46 0x00007fdb5d261b4d in g_main_context_dispatch (context=0x7fdb44001710) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3122
#47 0x00007fdb5d261b4d in g_main_context_dispatch (context=context@entry=0x7fdb44001710) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3737
#48 0x00007fdb5d261f20 in g_main_context_iterate (context=context@entry=0x7fdb44001710, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3808
#49 0x00007fdb5d261fcc in g_main_context_iteration (context=0x7fdb44001710, may_block=1) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3869
#50 0x00007fdb60762c6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#51 0x00007fdb607073e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#52 0x00007fdb6070f02c in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#53 0x00007fdb4ee45321 in kdemain(int, char**) (argc=1, argv=<optimized out>) at ../../src/kded.cpp:846
#54 0x0000000000408716 in launch(int, char const*, char const*, char const*, int, char const*, bool, char const*, bool, char const*) (argc=argc@entry=1, _name=_name@entry=0x40b7fe "kded5", args=<optimized out>, args@entry=0x0, cwd=cwd@entry=0x0, envc=envc@entry=0, envs=<optimized out>, envs@entry=0x0, reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x40b710 "0") at ../../../src/kdeinit/kinit.cpp:741
#55 0x00000000004058e9 in main(int, char**) (argc=5, argv=<optimized out>) at ../../../src/kdeinit/kinit.cpp:1808


Reproducible: Couldn't Reproduce

Steps to Reproduce:
1. It seems to be some background job, which propagated the exception
2.
3.

Actual Results:  
Crashed desktop, where I had to re-login

Expected Results:  
Working desktop