Bug 391027

Application: systemsettings5 (5.12.2)

Qt Version: 5.10.0
Frameworks Version: 5.43.0
Operating System: Linux 4.13.0-36-generic x86_64
Distribution: Ubuntu 16.04.4 LTS

-- Information about the crash:
- What I was doing when the application crashed:

Crashed when navigating system settings using search box, arrow keys (and maybe mouse, I don't know for sure).

It does not easilly reproduce (I only manged to hit it once despite some effort trying to reproduce it) so it may be a distinct issue from the bug that all similar issues seem to be listed as duplicates of (it claims 100% reproducabliity when typing a search)

The crash does not seem to be reproducible.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9c17f77900 (LWP 3527))]

Thread 7 (Thread 0x7f9bdd4aa700 (LWP 3872)):
#0  0x00007f9c13a2674d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9c0d82d38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9c0d82d49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9c143655cb in QEventDispatcherGlib::processEvents (this=0x7f9bd8035a30, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f9c1430c64a in QEventLoop::exec (this=this@entry=0x7f9bdd4a9ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f9c1412c554 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#6  0x00007f9c11c35a35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f9c141316eb in QThreadPrivate::start (arg=0x58d5e10) at thread/qthread_unix.cpp:376
#8  0x00007f9c0fe626ba in start_thread (arg=0x7f9bdd4aa700) at pthread_create.c:333
#9  0x00007f9c13a3241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f9bd7bfa700 (LWP 3852)):
#0  0x00007f9c13a2674d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9c0d82d38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9c0d82d712 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9bce6bf9d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f9c0d853bb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9c0fe626ba in start_thread (arg=0x7f9bd7bfa700) at pthread_create.c:333
#6  0x00007f9c13a3241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f9bcfbbf700 (LWP 3851)):
#0  0x00007f9c0d871a79 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9c0d82d290 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9c0d82d49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9c0d82d4d9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9c0d853bb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9c0fe626ba in start_thread (arg=0x7f9bcfbbf700) at pthread_create.c:333
#6  0x00007f9c13a3241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f9be6402700 (LWP 3532)):
#0  0x00007f9c13a2227d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9c0bb25073 in ?? () from /usr/lib/nvidia-384/tls/libnvidia-tls.so.384.111
#2  0x00007f9c0d8706f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9c0d82ce74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9c0d82d330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9c0d82d49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9c143655cb in QEventDispatcherGlib::processEvents (this=0x7f9be00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f9c1430c64a in QEventLoop::exec (this=this@entry=0x7f9be6401ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#8  0x00007f9c1412c554 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#9  0x00007f9c11c35a35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f9c141316eb in QThreadPrivate::start (arg=0x181ec60) at thread/qthread_unix.cpp:376
#11 0x00007f9c0fe626ba in start_thread (arg=0x7f9be6402700) at pthread_create.c:333
#12 0x00007f9c13a3241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f9bef1f2700 (LWP 3531)):
#0  0x00007f9c13a2227d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9c0bb25073 in ?? () from /usr/lib/nvidia-384/tls/libnvidia-tls.so.384.111
#2  0x00007f9c0d8706f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9c0d82ce74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9c0d82d330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9c0d82d49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9c143655cb in QEventDispatcherGlib::processEvents (this=0x7f9be80008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f9c1430c64a in QEventLoop::exec (this=this@entry=0x7f9bef1f1ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#8  0x00007f9c1412c554 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#9  0x00007f9c11c35a35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f9c141316eb in QThreadPrivate::start (arg=0x14b2260) at thread/qthread_unix.cpp:376
#11 0x00007f9c0fe626ba in start_thread (arg=0x7f9bef1f2700) at pthread_create.c:333
#12 0x00007f9c13a3241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f9bfa522700 (LWP 3529)):
#0  0x00007f9c0d871a79 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9c0d82c929 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9c0d82d2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9c0d82d49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9c143655cb in QEventDispatcherGlib::processEvents (this=0x7f9bf40008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f9c1430c64a in QEventLoop::exec (this=this@entry=0x7f9bfa521c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007f9c1412c554 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#7  0x00007f9c15c592c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f9c141316eb in QThreadPrivate::start (arg=0x7f9c15ecdd60) at thread/qthread_unix.cpp:376
#9  0x00007f9c0fe626ba in start_thread (arg=0x7f9bfa522700) at pthread_create.c:333
#10 0x00007f9c13a3241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f9c17f77900 (LWP 3527)):
[KCrash Handler]
#6  0x00000000057e4150 in ?? ()
#7  0x00007f9c14317ff9 in QMetaObject::cast (this=0x7f9c159c2f60 <QWidgetWindow::staticMetaObject>, obj=obj@entry=0x532ed90) at kernel/qmetaobject.cpp:366
#8  0x00007f9c14318035 in QMetaObject::cast (this=<optimized out>, obj=obj@entry=0x532ed90) at kernel/qmetaobject.cpp:355
#9  0x00007f9c1533d283 in qobject_cast<QWidgetWindow*> (object=0x532ed90) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:514
#10 QGestureManager::filterEvent (this=0x1420970, receiver=0x532ed90, event=0x7ffc1ec89870) at kernel/qgesturemanager.cpp:586
#11 0x00007f9c152f6083 in QApplication::notify (this=0x7ffc1ec89b60, receiver=0x532ed90, e=0x7ffc1ec89870) at kernel/qapplication.cpp:3056
#12 0x00007f9c1430e3c8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x532ed90, event=event@entry=0x7ffc1ec89870) at kernel/qcoreapplication.cpp:1044
#13 0x00007f9c1214ecb9 in QCoreApplication::sendEvent (event=0x7ffc1ec89870, receiver=0x532ed90) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:234
#14 QQuickKeysAttached::keyReleased (this=0x159cfc0, event=0x7ffc1ec89870, post=<optimized out>) at items/qquickitem.cpp:1429
#15 0x00007f9c1214e935 in QQuickItemPrivate::filterKeyEvent (this=this@entry=0x1582410, e=e@entry=0x7ffc1ec89870, post=post@entry=false) at items/qquickitem.cpp:5044
#16 0x00007f9c1215b2f5 in QQuickItemPrivate::deliverKeyEvent (this=0x1582410, e=0x7ffc1ec89870) at items/qquickitem.cpp:5054
#17 0x00007f9c1215b645 in QQuickItem::event (this=0x1582360, ev=0x7ffc1ec89870) at items/qquickitem.cpp:7838
#18 0x00007f9c152ecacc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x1582360, e=0x7ffc1ec89870) at kernel/qapplication.cpp:3732
#19 0x00007f9c152f4417 in QApplication::notify (this=0x7ffc1ec89b60, receiver=0x1582360, e=0x7ffc1ec89870) at kernel/qapplication.cpp:3491
#20 0x00007f9c1430e3c8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x1582360, event=event@entry=0x7ffc1ec89870) at kernel/qcoreapplication.cpp:1044
#21 0x00007f9c12166b7d in QCoreApplication::sendEvent (event=0x7ffc1ec89870, receiver=0x1582360) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:234
#22 QQuickWindowPrivate::deliverKeyEvent (this=this@entry=0x14b1220, e=e@entry=0x7ffc1ec89870) at items/qquickwindow.cpp:1653
#23 0x00007f9c1216adef in QQuickWindow::keyReleaseEvent (this=<optimized out>, e=0x7ffc1ec89870) at items/qquickwindow.cpp:1645
#24 0x00007f9c14b4c625 in QWindow::event (this=this@entry=0x1477f80, ev=ev@entry=0x7ffc1ec89870) at kernel/qwindow.cpp:2328
#25 0x00007f9c121758c5 in QQuickWindow::event (this=0x1477f80, e=0x7ffc1ec89870) at items/qquickwindow.cpp:1627
#26 0x00007f9c152ecacc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x1477f80, e=0x7ffc1ec89870) at kernel/qapplication.cpp:3732
#27 0x00007f9c152f4417 in QApplication::notify (this=0x7ffc1ec89b60, receiver=0x1477f80, e=0x7ffc1ec89870) at kernel/qapplication.cpp:3491
#28 0x00007f9c1430e3c8 in QCoreApplication::notifyInternal2 (receiver=0x1477f80, event=event@entry=0x7ffc1ec89870) at kernel/qcoreapplication.cpp:1044
#29 0x00007f9c127fef6c in QCoreApplication::sendEvent (event=0x7ffc1ec89870, receiver=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:234
#30 QQuickWidget::keyReleaseEvent (this=<optimized out>, e=0x7ffc1ec89870) at qquickwidget.cpp:1240
#31 0x00007f9c1532bf88 in QWidget::event (this=this@entry=0x14b0860, event=event@entry=0x7ffc1ec89870) at kernel/qwidget.cpp:9197
#32 0x00007f9c128007fb in QQuickWidget::event (this=0x14b0860, e=0x7ffc1ec89870) at qquickwidget.cpp:1468
#33 0x00007f9c152ecacc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x14b0860, e=0x7ffc1ec89870) at kernel/qapplication.cpp:3732
#34 0x00007f9c152f5d46 in QApplication::notify (this=0x7ffc1ec89b60, receiver=0x14b0860, e=0x7ffc1ec89870) at kernel/qapplication.cpp:3126
#35 0x00007f9c1430e3c8 in QCoreApplication::notifyInternal2 (receiver=0x14b0860, event=0x7ffc1ec89870) at kernel/qcoreapplication.cpp:1044
#36 0x00007f9c15348993 in QWidgetWindow::event (this=0x13420b0, event=0x7ffc1ec89870) at kernel/qwidgetwindow.cpp:266
#37 0x00007f9c152ecacc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x13420b0, e=0x7ffc1ec89870) at kernel/qapplication.cpp:3732
#38 0x00007f9c152f4417 in QApplication::notify (this=0x7ffc1ec89b60, receiver=0x13420b0, e=0x7ffc1ec89870) at kernel/qapplication.cpp:3491
#39 0x00007f9c1430e3c8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x13420b0, event=event@entry=0x7ffc1ec89870) at kernel/qcoreapplication.cpp:1044
#40 0x00007f9c14b3ca48 in QCoreApplication::sendSpontaneousEvent (event=0x7ffc1ec89870, receiver=0x13420b0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:237
#41 QGuiApplicationPrivate::processKeyEvent (e=0x54718b0) at kernel/qguiapplication.cpp:2083
#42 0x00007f9c14b41e25 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x54718b0) at kernel/qguiapplication.cpp:1747
#43 0x00007f9c14b1b8fb in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:976
#44 0x00007f9c065971ab in QPAEventDispatcherGlib::processEvents (this=0x1194e60, flags=...) at qeventdispatcher_glib.cpp:70
#45 0x00007f9c1430c64a in QEventLoop::exec (this=this@entry=0x7ffc1ec89a40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#46 0x00007f9c14315854 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1332
#47 0x00007f9c14b3783c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1687
#48 0x00007f9c152eca25 in QApplication::exec () at kernel/qapplication.cpp:2917
#49 0x000000000040b6fe in main (argc=1, argv=<optimized out>) at /workspace/build/app/main.cpp:67

Possible duplicates by query: bug 390077, bug 389526, bug 389467, bug 388187.

Reported using DrKonqi