Bug 413614

Application: kinfocenter (5.17.80)

Qt Version: 5.13.1
Frameworks Version: 5.64.0
Operating System: Linux 5.0.0-29-generic x86_64
Windowing system: X11
Distribution: KDE neon Unstable Edition

-- Information about the crash:
- What I was doing when the application crashed:
open kinfocenter
click on "Energy information" section
click on "File indexer monitor" section
crash

The crash can be reproduced every time.

-- Backtrace:
Application: Info Center (kinfocenter), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff3147d4d40 (LWP 7584))]

Thread 5 (Thread 0x7ff2eabed700 (LWP 7610)):
#0  __GI___poll (fds=0x7ff2dc20aff0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:27
#1  0x00007ff30a1cf5c9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7ff2dc20aff0, timeout=<optimized out>, context=0x7ff2dc1d1700) at ../../../../glib/gmain.c:4203
#2  g_main_context_iterate (context=context@entry=0x7ff2dc1d1700, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3897
#3  0x00007ff30a1cf6dc in g_main_context_iteration (context=0x7ff2dc1d1700, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#4  0x00007ff3113d79db in QEventDispatcherGlib::processEvents (this=0x7ff2dc0fcfa0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007ff311377eaa in QEventLoop::exec (this=this@entry=0x7ff2eabecd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007ff3111933ca in QThread::exec (this=this@entry=0x55f2f4e00630) at thread/qthread.cpp:531
#7  0x00007ff30f8f3cb5 in QQmlThreadPrivate::run (this=0x55f2f4e00630) at qml/ftw/qqmlthread.cpp:152
#8  0x00007ff311194b72 in QThreadPrivate::start (arg=0x55f2f4e00630) at thread/qthread_unix.cpp:360
#9  0x00007ff30bf166db in start_thread (arg=0x7ff2eabed700) at pthread_create.c:463
#10 0x00007ff310a9188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7ff2ec3c3700 (LWP 7587)):
#0  0x00007ff30bf1c9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55f2f4c9ab3c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55f2f4c9aae8, cond=0x55f2f4c9ab10) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55f2f4c9ab10, mutex=0x55f2f4c9aae8) at pthread_cond_wait.c:655
#3  0x00007ff2ed6962cb in cnd_wait (mtx=0x55f2f4c9aae8, cond=0x55f2f4c9ab10) at ../src/../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55f2f4df4590) at ../src/util/u_queue.c:256
#5  0x00007ff2ed695ff7 in impl_thrd_routine (p=<optimized out>) at ../src/../include/c11/threads_posix.h:87
#6  0x00007ff30bf166db in start_thread (arg=0x7ff2ec3c3700) at pthread_create.c:463
#7  0x00007ff310a9188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ff2f96b6700 (LWP 7586)):
#0  g_mutex_unlock (mutex=0x7ff2f4000bf0) at ../../../../glib/gthread-posix.c:1355
#1  0x00007ff30a1cefd9 in g_main_context_check (context=context@entry=0x7ff2f4000bf0, max_priority=2147483647, fds=fds@entry=0x7ff2f401a500, n_fds=n_fds@entry=1) at ../../../../glib/gmain.c:3733
#2  0x00007ff30a1cf570 in g_main_context_iterate (context=context@entry=0x7ff2f4000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3899
#3  0x00007ff30a1cf6dc in g_main_context_iteration (context=0x7ff2f4000bf0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#4  0x00007ff3113d79db in QEventDispatcherGlib::processEvents (this=0x7ff2f4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007ff311377eaa in QEventLoop::exec (this=this@entry=0x7ff2f96b5d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007ff3111933ca in QThread::exec (this=this@entry=0x7ff30ed2ad80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:531
#7  0x00007ff30eab30e5 in QDBusConnectionManager::run (this=0x7ff30ed2ad80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007ff311194b72 in QThreadPrivate::start (arg=0x7ff30ed2ad80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:360
#9  0x00007ff30bf166db in start_thread (arg=0x7ff2f96b6700) at pthread_create.c:463
#10 0x00007ff310a9188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ff3015c5700 (LWP 7585)):
#0  0x00007ff310a84bf9 in __GI___poll (fds=0x7ff3015c4ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff30c545747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff30c54736a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff3043aaf00 in QXcbEventQueue::run (this=0x55f2f4a8e890) at qxcbeventqueue.cpp:228
#4  0x00007ff311194b72 in QThreadPrivate::start (arg=0x55f2f4a8e890) at thread/qthread_unix.cpp:360
#5  0x00007ff30bf166db in start_thread (arg=0x7ff3015c5700) at pthread_create.c:463
#6  0x00007ff310a9188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ff3147d4d40 (LWP 7584)):
[KCrash Handler]
#6  0x00007ff3113a87a1 in QObject::property (this=0x55f2f4e76a10, name=name@entry=0x7ff2e90f6d94 "gridUnit") at kernel/qobject.cpp:3974
#7  0x00007ff2e90d77ee in ColumnView::<lambda()>::operator() (__closure=<synthetic pointer>) at ./src/columnview.cpp:1422
#8  ColumnView::classBegin (this=0x55f2f50cedb0) at ./src/columnview.cpp:1427
#9  0x00007ff30f8dd727 in QQmlObjectCreator::createInstance (this=this@entry=0x7ffd1be26940, index=38, parent=<optimized out>, isContextObject=isContextObject@entry=false) at qml/qqmlobjectcreator.cpp:1280
#10 0x00007ff30f8dbe00 in QQmlObjectCreator::setPropertyBinding (this=this@entry=0x7ffd1be26940, bindingProperty=0x7ff2dc0bae58, binding=binding@entry=0x7ff2e9b88e3c) at qml/qqmlobjectcreator.cpp:856
#11 0x00007ff30f8dc54b in QQmlObjectCreator::setupBindings (this=this@entry=0x7ffd1be26940, applyDeferredBindings=applyDeferredBindings@entry=false) at qml/qqmlobjectcreator.cpp:808
#12 0x00007ff30f8dd11b in QQmlObjectCreator::populateInstance (this=this@entry=0x7ffd1be26940, index=-1, index@entry=0, instance=0x0, bindingTarget=0x0, valueTypeProperty=valueTypeProperty@entry=0x0) at qml/qqmlobjectcreator.cpp:1500
#13 0x00007ff30f8ddc10 in QQmlObjectCreator::createInstance (this=this@entry=0x7ffd1be26940, index=index@entry=0, parent=parent@entry=0x0, isContextObject=isContextObject@entry=true) at qml/qqmlobjectcreator.cpp:1337
#14 0x00007ff30f8de940 in QQmlObjectCreator::create (this=0x7ffd1be26940, subComponentIndex=<optimized out>, parent=0x0, interrupt=<optimized out>) at qml/qqmlobjectcreator.cpp:203
#15 0x00007ff30f8de01d in QQmlObjectCreator::createInstance (this=this@entry=0x7ffd1be27090, index=1, parent=0x55f2f79f29c0, isContextObject=isContextObject@entry=false) at qml/qqmlobjectcreator.cpp:1233
#16 0x00007ff30f8dbe00 in QQmlObjectCreator::setPropertyBinding (this=this@entry=0x7ffd1be27090, bindingProperty=0x7ff2dc1ba108, binding=binding@entry=0x7ff2e9b689fc) at qml/qqmlobjectcreator.cpp:856
#17 0x00007ff30f8dc54b in QQmlObjectCreator::setupBindings (this=this@entry=0x7ffd1be27090, applyDeferredBindings=applyDeferredBindings@entry=false) at qml/qqmlobjectcreator.cpp:808
#18 0x00007ff30f8dd11b in QQmlObjectCreator::populateInstance (this=this@entry=0x7ffd1be27090, index=-1, index@entry=0, instance=0x0, bindingTarget=0x0, valueTypeProperty=valueTypeProperty@entry=0x0) at qml/qqmlobjectcreator.cpp:1500
#19 0x00007ff30f8ddc10 in QQmlObjectCreator::createInstance (this=this@entry=0x7ffd1be27090, index=index@entry=0, parent=parent@entry=0x0, isContextObject=isContextObject@entry=true) at qml/qqmlobjectcreator.cpp:1337
#20 0x00007ff30f8de940 in QQmlObjectCreator::create (this=0x7ffd1be27090, subComponentIndex=<optimized out>, parent=0x0, interrupt=<optimized out>) at qml/qqmlobjectcreator.cpp:203
#21 0x00007ff30f8de01d in QQmlObjectCreator::createInstance (this=this@entry=0x55f2f4c997a0, index=index@entry=0, parent=parent@entry=0x0, isContextObject=isContextObject@entry=true) at qml/qqmlobjectcreator.cpp:1233
#22 0x00007ff30f8de940 in QQmlObjectCreator::create (this=this@entry=0x55f2f4c997a0, subComponentIndex=<optimized out>, parent=parent@entry=0x0, interrupt=interrupt@entry=0x0) at qml/qqmlobjectcreator.cpp:203
#23 0x00007ff30f85fd7c in QQmlComponentPrivate::beginCreate (this=0x55f2f5239c40, context=<optimized out>) at qml/qqmlcomponent.cpp:883
#24 0x00007ff30f85e28b in QQmlComponent::create (this=0x55f2f51d01c0, context=0x55f2f94f6390) at qml/qqmlcomponent.cpp:795
#25 0x00007ff3143cd7a1 in KCModuleQml::KCModuleQml (this=0x55f2f52c7a10, configModule=..., parent=<optimized out>, args=...) at ./src/kcmoduleqml.cpp:155
#26 0x00007ff3143cb24e in KCModuleLoader::loadModule (mod=..., report=report@entry=KCModuleLoader::Inline, parent=0x55f2f5324910, args=...) at ./src/kcmoduleloader.cpp:108
#27 0x00007ff3143d26bf in KCModuleProxyPrivate::loadModule (this=this@entry=0x55f2f4f09910) at ./src/kcmoduleproxy.cpp:94
#28 0x00007ff3143d3218 in KCModuleProxy::realModule (this=<optimized out>) at ./src/kcmoduleproxy.cpp:67
#29 0x000055f2f3dec8b0 in ?? ()
#30 0x000055f2f3de9486 in ?? ()
#31 0x000055f2f3de9520 in ?? ()
#32 0x000055f2f3df0230 in ?? ()
#33 0x00007ff3113aa715 in QMetaObject::activate (sender=0x55f2f4b0e490, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3809
#34 0x000055f2f3deffaf in ?? ()
#35 0x00007ff3113aa82f in QtPrivate::QSlotObjectBase::call (a=0x7ffd1be27af0, r=0x55f2f4b0e490, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#36 QMetaObject::activate (sender=sender@entry=0x55f2f4b0e490, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=1, argv=<optimized out>, argv@entry=0x7ffd1be27af0) at kernel/qobject.cpp:3789
#37 0x00007ff3113aadd7 in QMetaObject::activate (sender=sender@entry=0x55f2f4b0e490, m=m@entry=0x7ff312876ca0 <QAbstractItemView::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffd1be27af0) at kernel/qobject.cpp:3660
#38 0x00007ff3123d1055 in QAbstractItemView::clicked (this=this@entry=0x55f2f4b0e490, _t1=...) at .moc/moc_qabstractitemview.cpp:654
#39 0x00007ff3123d4123 in QAbstractItemView::mouseReleaseEvent (this=this@entry=0x55f2f4b0e490, event=event@entry=0x7ffd1be283c0) at itemviews/qabstractitemview.cpp:1931
#40 0x00007ff312447c43 in QTreeView::mouseReleaseEvent (this=0x55f2f4b0e490, event=0x7ffd1be283c0) at itemviews/qtreeview.cpp:1901
#41 0x00007ff3121bfbf8 in QWidget::event (this=this@entry=0x55f2f4b0e490, event=event@entry=0x7ffd1be283c0) at kernel/qwidget.cpp:9339
#42 0x00007ff3122646be in QFrame::event (this=0x55f2f4b0e490, e=0x7ffd1be283c0) at widgets/qframe.cpp:550
#43 0x00007ff3123dd013 in QAbstractItemView::viewportEvent (this=this@entry=0x55f2f4b0e490, event=event@entry=0x7ffd1be283c0) at itemviews/qabstractitemview.cpp:1753
#44 0x00007ff31244745c in QTreeView::viewportEvent (this=0x55f2f4b0e490, event=0x7ffd1be283c0) at itemviews/qtreeview.cpp:1311
#45 0x00007ff311379acd in QCoreApplicationPrivate::sendThroughObjectEventFilters (receiver=receiver@entry=0x55f2f4b5cd80, event=event@entry=0x7ffd1be283c0) at kernel/qcoreapplication.cpp:1221
#46 0x00007ff31217ee85 in QApplicationPrivate::notify_helper (this=this@entry=0x55f2f4a6f2b0, receiver=receiver@entry=0x55f2f4b5cd80, e=e@entry=0x7ffd1be283c0) at kernel/qapplication.cpp:3697
#47 0x00007ff312187388 in QApplication::notify (this=<optimized out>, receiver=0x55f2f4b5cd80, e=0x7ffd1be283c0) at kernel/qapplication.cpp:3163
#48 0x00007ff311379d48 in QCoreApplication::notifyInternal2 (receiver=0x55f2f4b5cd80, event=0x7ffd1be283c0) at kernel/qcoreapplication.cpp:1095
#49 0x00007ff311379f2e in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55f2f4b5cd80, event=event@entry=0x7ffd1be283c0) at kernel/qcoreapplication.cpp:1502
#50 0x00007ff31218597f in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x55f2f4b5cd80, event=event@entry=0x7ffd1be283c0, alienWidget=0x55f2f4b5cd80, nativeWidget=0x55f2f4b4a8a0, buttonDown=buttonDown@entry=0x7ff3128878b0 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2649
#51 0x00007ff3121da591 in QWidgetWindow::handleMouseEvent (this=this@entry=0x55f2f4ccdc30, event=event@entry=0x7ffd1be28850) at kernel/qwidgetwindow.cpp:662
#52 0x00007ff3121dd3ea in QWidgetWindow::event (this=0x55f2f4ccdc30, event=0x7ffd1be28850) at kernel/qwidgetwindow.cpp:281
#53 0x00007ff31217eeac in QApplicationPrivate::notify_helper (this=this@entry=0x55f2f4a6f2b0, receiver=receiver@entry=0x55f2f4ccdc30, e=e@entry=0x7ffd1be28850) at kernel/qapplication.cpp:3703
#54 0x00007ff3121864b0 in QApplication::notify (this=0x7ffd1be28c60, receiver=0x55f2f4ccdc30, e=0x7ffd1be28850) at kernel/qapplication.cpp:3449
#55 0x00007ff311379d48 in QCoreApplication::notifyInternal2 (receiver=0x55f2f4ccdc30, event=0x7ffd1be28850) at kernel/qcoreapplication.cpp:1095
#56 0x00007ff311379f2e in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55f2f4ccdc30, event=event@entry=0x7ffd1be28850) at kernel/qcoreapplication.cpp:1502
#57 0x00007ff31194d285 in QGuiApplicationPrivate::processMouseEvent (e=0x55f2f7ebd0d0) at kernel/qguiapplication.cpp:2111
#58 0x00007ff31194e3d5 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x55f2f7ebd0d0) at kernel/qguiapplication.cpp:1846
#59 0x00007ff31192871b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1148
#60 0x00007ff3043abeca in xcbSourceDispatch (source=source@entry=0x55f2f4acb890) at qxcbeventdispatcher.cpp:105
#61 0x00007ff30a1cf417 in g_main_dispatch (context=0x7ff2fc004ff0) at ../../../../glib/gmain.c:3176
#62 g_main_context_dispatch (context=context@entry=0x7ff2fc004ff0) at ../../../../glib/gmain.c:3829
#63 0x00007ff30a1cf650 in g_main_context_iterate (context=context@entry=0x7ff2fc004ff0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3902
#64 0x00007ff30a1cf6dc in g_main_context_iteration (context=0x7ff2fc004ff0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#65 0x00007ff3113d79bf in QEventDispatcherGlib::processEvents (this=0x55f2f4ac53a0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#66 0x00007ff311377eaa in QEventLoop::exec (this=this@entry=0x7ffd1be28bf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#67 0x00007ff311381220 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1403
#68 0x000055f2f3de82e9 in ?? ()
#69 0x00007ff310991b97 in __libc_start_main (main=0x55f2f3de82b0, argc=1, argv=0x7ffd1be28d78, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd1be28d68) at ../csu/libc-start.c:310
#70 0x000055f2f3de835a in _start ()

Possible duplicates by query: bug 375527, bug 372913, bug 351275, bug 349162, bug 339964.

Reported using DrKonqi