Bug 386683

Summary: Crash when searching in system settings
Product: [Applications] systemsettings Reporter: Aleix Pol <aleixpol>
Component: generalAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: crash CC: isa-lie, kde, nate, simonandric5
Priority: NOR Keywords: drkonqi
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
See Also: https://bugs.kde.org/show_bug.cgi?id=385774
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Aleix Pol 2017-11-09 16:17:55 UTC 
Application: systemsettings5 (5.11.90)
 (Compiled from sources)
Qt Version: 5.10.0
Frameworks Version: 5.40.0
Operating System: Linux 4.13.11-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- What I was doing when the application crashed:
I was filtering. A bit of back and forth brought the crash. Note I'm on Qt 5.10.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7feb413b3380 (LWP 18992))]

Thread 5 (Thread 0x7feb23fff700 (LWP 18997)):
#0  0x00007feb4a9e3d4b in poll () from /usr/lib/libc.so.6
#1  0x00007feb43af2ed3 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007feb43af2fae in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007feb4b8c78cb in QEventDispatcherGlib::processEvents (this=0x7feb1c000b10, flags=...) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#4  0x00007feb4b86b42a in QEventLoop::exec (this=this@entry=0x7feb23ffed10, flags=..., flags@entry=...) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#5  0x00007feb4b681aea in QThread::exec (this=this@entry=0x5651b54f6130) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:515
#6  0x00007feb4a139f25 in QQmlThreadPrivate::run (this=0x5651b54f6130) at /home/apol/devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:147
#7  0x00007feb4b686cbf in QThreadPrivate::start (arg=0x5651b54f6130) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:376
#8  0x00007feb4754b08a in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007feb4a9ee24f in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7feb2b08d700 (LWP 18996)):
#0  0x00007feb43b1a5f9 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007feb43af2f99 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#2  0x00007feb4b8c78cb in QEventDispatcherGlib::processEvents (this=0x7feb24000b10, flags=...) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#3  0x00007feb4b86b42a in QEventLoop::exec (this=this@entry=0x7feb2b08cd10, flags=..., flags@entry=...) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#4  0x00007feb4b681aea in QThread::exec (this=this@entry=0x5651b50b7500) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:515
#5  0x00007feb4a139f25 in QQmlThreadPrivate::run (this=0x5651b50b7500) at /home/apol/devel/frameworks/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:147
#6  0x00007feb4b686cbf in QThreadPrivate::start (arg=0x5651b50b7500) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:376
#7  0x00007feb4754b08a in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007feb4a9ee24f in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7feb3603a700 (LWP 18994)):
#0  0x00007feb4b8c77a2 in postEventSourcePrepare (s=0x7feb30004b90, timeout=0x7feb36039b34) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:251
#1  0x00007feb43af2771 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007feb43af2df6 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007feb43af2fae in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007feb4b8c78cb in QEventDispatcherGlib::processEvents (this=0x7feb30000b10, flags=...) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#5  0x00007feb4b86b42a in QEventLoop::exec (this=this@entry=0x7feb36039d00, flags=..., flags@entry=...) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#6  0x00007feb4b681aea in QThread::exec (this=this@entry=0x7feb4bb62da0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/thread/qthread.cpp:515
#7  0x00007feb4baee6d5 in QDBusConnectionManager::run (this=0x7feb4bb62da0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at /home/apol/devel/frameworks/qt5/qtbase/src/dbus/qdbusconnection.cpp:178
#8  0x00007feb4b686cbf in QThreadPrivate::start (arg=0x7feb4bb62da0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:376
#9  0x00007feb4754b08a in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007feb4a9ee24f in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7feb3ea04700 (LWP 18993)):
#0  0x00007feb4a9e3d4b in poll () from /usr/lib/libc.so.6
#1  0x00007feb47b9a8e0 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007feb47b9c679 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007feb40fc0d49 in QXcbEventReader::run (this=0x5651b4b48e70) at /home/apol/devel/frameworks/qt5/qtbase/src/plugins/platforms/xcb/qxcbconnection.cpp:1370
#4  0x00007feb4b686cbf in QThreadPrivate::start (arg=0x5651b4b48e70) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:376
#5  0x00007feb4754b08a in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007feb4a9ee24f in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7feb413b3380 (LWP 18992)):
[KCrash Handler]
#6  QScopedScopeLevelCounter::QScopedScopeLevelCounter (threadData=0x50, this=<synthetic pointer>) at ../../include/QtCore/5.10.0/QtCore/private/../../../../../../../../devel/frameworks/qt5/qtbase/src/corelib/thread/qthread_p.h:304
#7  QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x5651bb823aa0, event=event@entry=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1041
#8  0x00007feb4a44de75 in QCoreApplication::sendEvent (event=0x7ffc2196d810, receiver=0x5651bb823aa0) at /home/apol/build-devel/qt5/qtbase/include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.h:234
#9  QQuickKeysAttached::keyReleased (this=0x5651b51d3b60, event=0x7ffc2196d810, post=<optimized out>) at /home/apol/devel/frameworks/qt5/qtdeclarative/src/quick/items/qquickitem.cpp:1429
#10 0x00007feb4a44dafd in QQuickItemPrivate::filterKeyEvent (this=this@entry=0x5651b50633d0, e=e@entry=0x7ffc2196d810, post=post@entry=false) at /home/apol/devel/frameworks/qt5/qtdeclarative/src/quick/items/qquickitem.cpp:5044
#11 0x00007feb4a459fb5 in QQuickItemPrivate::deliverKeyEvent (this=0x5651b50633d0, e=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtdeclarative/src/quick/items/qquickitem.cpp:5054
#12 0x00007feb4a45a305 in QQuickItem::event (this=0x5651b51c03a0, ev=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtdeclarative/src/quick/items/qquickitem.cpp:7838
#13 0x00007feb4d1c8a8c in QApplicationPrivate::notify_helper (this=this@entry=0x5651b4b18680, receiver=receiver@entry=0x5651b51c03a0, e=e@entry=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3732
#14 0x00007feb4d1d0214 in QApplication::notify (this=0x7ffc2196dc08, receiver=0x5651b51c03a0, e=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3491
#15 0x00007feb4b86cd48 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x5651b51c03a0, event=event@entry=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1044
#16 0x00007feb4a465628 in QCoreApplication::sendEvent (event=0x7ffc2196d810, receiver=0x5651b51c03a0) at /home/apol/build-devel/qt5/qtbase/include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.h:234
#17 QQuickWindowPrivate::deliverKeyEvent (this=this@entry=0x5651b4fd49f0, e=e@entry=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:1650
#18 0x00007feb4a46994f in QQuickWindow::keyReleaseEvent (this=<optimized out>, e=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:1642
#19 0x00007feb4cbd4ae5 in QWindow::event (this=this@entry=0x5651b5087570, ev=ev@entry=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/gui/kernel/qwindow.cpp:2325
#20 0x00007feb4a4742f5 in QQuickWindow::event (this=0x5651b5087570, e=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp:1624
#21 0x00007feb4d1c8a8c in QApplicationPrivate::notify_helper (this=this@entry=0x5651b4b18680, receiver=receiver@entry=0x5651b5087570, e=e@entry=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3732
#22 0x00007feb4d1d0214 in QApplication::notify (this=0x7ffc2196dc08, receiver=0x5651b5087570, e=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3491
#23 0x00007feb4b86cd48 in QCoreApplication::notifyInternal2 (receiver=0x5651b5087570, event=event@entry=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1044
#24 0x00007feb4fed727c in QCoreApplication::sendEvent (event=0x7ffc2196d810, receiver=<optimized out>) at /home/apol/build-devel/qt5/qtbase/include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.h:234
#25 QQuickWidget::keyReleaseEvent (this=<optimized out>, e=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtdeclarative/src/quickwidgets/qquickwidget.cpp:1234
#26 0x00007feb4d2074f8 in QWidget::event (this=0x5651b50b4c60, event=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qwidget.cpp:9195
#27 0x00007feb4d1c8a8c in QApplicationPrivate::notify_helper (this=this@entry=0x5651b4b18680, receiver=receiver@entry=0x5651b50b4c60, e=e@entry=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3732
#28 0x00007feb4d1d1752 in QApplication::notify (this=<optimized out>, receiver=0x5651b50b4c60, e=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3126
#29 0x00007feb4b86cd48 in QCoreApplication::notifyInternal2 (receiver=0x5651b50b4c60, event=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1044
#30 0x00007feb4d224954 in QWidgetWindow::event (this=0x5651b4c85e60, event=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qwidgetwindow.cpp:262
#31 0x00007feb4d1c8a8c in QApplicationPrivate::notify_helper (this=this@entry=0x5651b4b18680, receiver=receiver@entry=0x5651b4c85e60, e=e@entry=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3732
#32 0x00007feb4d1d0214 in QApplication::notify (this=0x7ffc2196dc08, receiver=0x5651b4c85e60, e=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3491
#33 0x00007feb4b86cd48 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x5651b4c85e60, event=event@entry=0x7ffc2196d810) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1044
#34 0x00007feb4cbc5600 in QCoreApplication::sendSpontaneousEvent (event=0x7ffc2196d810, receiver=0x5651b4c85e60) at ../../include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.h:237
#35 QGuiApplicationPrivate::processKeyEvent (e=0x5651bb8e6140) at /home/apol/devel/frameworks/qt5/qtbase/src/gui/kernel/qguiapplication.cpp:2083
#36 0x00007feb4cbca625 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x5651bb8e6140) at /home/apol/devel/frameworks/qt5/qtbase/src/gui/kernel/qguiapplication.cpp:1747
#37 0x00007feb4cba2cab in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at /home/apol/devel/frameworks/qt5/qtbase/src/gui/kernel/qwindowsysteminterface.cpp:976
#38 0x00007feb4104527b in QPAEventDispatcherGlib::processEvents (this=0x5651b4b828d0, flags=...) at /home/apol/devel/frameworks/qt5/qtbase/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp:70
#39 0x00007feb4b86b42a in QEventLoop::exec (this=this@entry=0x7ffc2196d9e0, flags=..., flags@entry=...) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#40 0x00007feb4b8743f4 in QCoreApplication::exec () at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1332
#41 0x00005651b450b2c7 in main (argc=1, argv=0x7ffc2196dd28) at /home/apol/devel/frameworks/systemsettings/app/main.cpp:65

Reported using DrKonqi
Comment 1 David Edmundson 2017-11-17 14:54:34 UTC 
Is this reproducible?

If we can get it in valgrind that'd be great
Comment 3 Nate Graham 2018-01-18 17:08:06 UTC 

*** This bug has been marked as a duplicate of bug 388414 ***