Bug 420063

Application: kcmshell5 (5.12.8)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 5.3.0-46-generic x86_64
Distribution: Ubuntu 18.04.4 LTS

-- Information about the crash:
- What I was doing when the application crashed: I had opened network settings after connecting to the internet and it crashed

- Unusual behavior I noticed: Does not detect certain wifi signals. Detects my office wifi but not home wifi.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings Module (kcmshell5), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa12a643800 (LWP 20099))]

Thread 4 (Thread 0x7fa108dae700 (LWP 20102)):
#0  0x00007fa123f2f7ce in __pthread_mutex_unlock_usercnt (decr=1, mutex=0x7fa1239588a0) at pthread_mutex_unlock.c:54
#1  __GI___pthread_mutex_unlock (mutex=0x7fa1239588a0) at pthread_mutex_unlock.c:345
#2  0x00007fa1236d4b79 in ?? () from /usr/lib/x86_64-linux-gnu/libGL.so.1
#3  0x00007fa1236d882b in ?? () from /usr/lib/x86_64-linux-gnu/libGL.so.1
#4  0x00007fa11fb1efd0 in ?? () from /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.340.107
#5  0x00007fa121df42b0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fa121daf0b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fa121daf570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fa121daf6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fa1273c48ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fa12736990a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fa12718823a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fa125cc66f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007fa12718d17d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fa123f2b6db in start_thread (arg=0x7fa108dae700) at pthread_create.c:463
#15 0x00007fa129f8788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fa10baba700 (LWP 20101)):
#0  __GI___pthread_mutex_lock (mutex=0x7fa1239588a0) at ../nptl/pthread_mutex_lock.c:93
#1  0x00007fa1236d4ea0 in ?? () from /usr/lib/x86_64-linux-gnu/libGL.so.1
#2  0x00007fa1236d842e in ?? () from /usr/lib/x86_64-linux-gnu/libGL.so.1
#3  0x00007fa1236d882b in ?? () from /usr/lib/x86_64-linux-gnu/libGL.so.1
#4  0x00007fa11fb1efd0 in ?? () from /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.340.107
#5  0x00007fa121df42b0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fa121daf0b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fa121daf570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fa121daf6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fa1273c48ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fa12736990a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fa12718823a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fa127841d45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#13 0x00007fa12718d17d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fa123f2b6db in start_thread (arg=0x7fa10baba700) at pthread_create.c:463
#15 0x00007fa129f8788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fa114f04700 (LWP 20100)):
#0  0x00007fa129f7abf9 in __GI___poll (fds=0x7fa114f03ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa12455a747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fa12455c36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fa117a9f5e9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fa12718d17d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa123f2b6db in start_thread (arg=0x7fa114f04700) at pthread_create.c:463
#6  0x00007fa129f8788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fa12a643800 (LWP 20099)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007fa129ea6801 in __GI_abort () at abort.c:79
#8  0x00007fa127177fb7 in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa12616d2a7 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fa12616e275 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fa12616ee9a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fa127bc33d5 in QWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007fa1261e36c5 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007fa12837383c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007fa12837b104 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007fa12736b8d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fa127bb849f in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007fa127bb90dd in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007fa127b902eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007fa117b04260 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#21 0x00007fa121daf417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fa121daf650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fa121daf6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fa1273c488f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007fa12736990a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fa1273729b4 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fa12a25fd10 in kdemain () from /usr/lib/x86_64-linux-gnu/libkdeinit5_kcmshell5.so
#28 0x00007fa129e87b97 in __libc_start_main (main=0x55f69d397740, argc=2, argv=0x7ffe2fc0b0e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe2fc0b0d8) at ../csu/libc-start.c:310
#29 0x000055f69d39777a in _start ()

Possible duplicates by query: bug 413943, bug 411017.

Reported using DrKonqi