Bug 389199

Application: kinfocenter (5.11.5)

Qt Version: 5.9.3
Frameworks Version: 5.42.0
Operating System: Linux 4.13.0-26-generic x86_64
Distribution: KDE neon User Edition 5.11

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

If you make multiple clicks in the Info Center, the app will eventually crash. Happens with both Xorg and Wayland.

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 0x7f12e7eb78c0 (LWP 3842))]

Thread 2 (Thread 0x7f12d2403700 (LWP 3843)):
#0  0x00007f12e476074d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f12debda38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f12debda49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12e50876cb in QEventDispatcherGlib::processEvents (this=0x7f12cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f12e502fe2a in QEventLoop::exec (this=this@entry=0x7f12d2402cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f12e4e588f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007f12e27a3315 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f12e4e5d709 in QThreadPrivate::start (arg=0x7f12e2a17d40) at thread/qthread_unix.cpp:368
#8  0x00007f12e060e6ba in start_thread (arg=0x7f12d2403700) at pthread_create.c:333
#9  0x00007f12e476c41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f12e7eb78c0 (LWP 3842)):
[KCrash Handler]
#6  0x00007f12d6ede5b9 in wl_map_insert_at (map=<optimized out>, flags=flags@entry=0, i=<optimized out>, data=<optimized out>) at ../src/wayland-util.c:249
#7  0x00007f12d6eda7be in proxy_destroy (proxy=0xf32e80) at ../src/wayland-client.c:411
#8  wl_proxy_destroy (proxy=0xf32e80) at ../src/wayland-client.c:442
#9  0x00007f12d56b9555 in KWayland::Client::Registry::release() () from /usr/lib/x86_64-linux-gnu/libKF5WaylandClient.so.5
#10 0x00007f12d56b957c in KWayland::Client::Registry::~Registry() () from /usr/lib/x86_64-linux-gnu/libKF5WaylandClient.so.5
#11 0x00007f12d56b9629 in KWayland::Client::Registry::~Registry() () from /usr/lib/x86_64-linux-gnu/libKF5WaylandClient.so.5
#12 0x00007f12e505bd63 in QObjectPrivate::deleteChildren (this=this@entry=0xec58b0) at kernel/qobject.cpp:1992
#13 0x00007f12e5065c84 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1022
#14 0x00007f12c3e395c9 in WaylandModule::~WaylandModule (this=0xe893e0, __in_chrg=<optimized out>) at /workspace/build/Modules/base/info_wayland.cpp:48
#15 0x00007f12e505bd63 in QObjectPrivate::deleteChildren (this=this@entry=0xf0ca90) at kernel/qobject.cpp:1992
#16 0x00007f12e5dc9624 in QWidget::~QWidget (this=0x10ea290, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1709
#17 0x00007f12e60508e9 in QTreeWidget::~QTreeWidget (this=0x10ea290, __in_chrg=<optimized out>) at itemviews/qtreewidget.cpp:2551
#18 0x00007f12e505bd63 in QObjectPrivate::deleteChildren (this=this@entry=0x11daa00) at kernel/qobject.cpp:1992
#19 0x00007f12e5dc9624 in QWidget::~QWidget (this=0x10b16a0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1709
#20 0x00007f12e5f3bd89 in QStackedWidget::~QStackedWidget (this=0x10b16a0, __in_chrg=<optimized out>) at widgets/qstackedwidget.cpp:147
#21 0x00007f12e505bd63 in QObjectPrivate::deleteChildren (this=this@entry=0xf30b90) at kernel/qobject.cpp:1992
#22 0x00007f12e5dc9624 in QWidget::~QWidget (this=0x11aa870, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1709
#23 0x00007f12e71b05ad in KCModule::~KCModule() () from /usr/lib/x86_64-linux-gnu/libKF5ConfigWidgets.so.5
#24 0x00007f12c3e3346e in KInfoListWidget::~KInfoListWidget (this=0x11aa870, __in_chrg=<optimized out>) at /workspace/build/Modules/info/info.h:36
#25 KWaylandInfoWidget::~KWaylandInfoWidget (this=0x11aa870, __in_chrg=<optimized out>) at /workspace/build/Modules/info/main.cpp:57
#26 KWaylandInfoWidget::~KWaylandInfoWidget (this=0x11aa870, __in_chrg=<optimized out>) at /workspace/build/Modules/info/main.cpp:57
#27 0x00007f12e793a994 in KCModuleProxy::deleteClient() () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#28 0x00007f12e793ad5a in KCModuleProxy::~KCModuleProxy() () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#29 0x00007f12e793aef9 in KCModuleProxy::~KCModuleProxy() () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#30 0x00007f12e505bd63 in QObjectPrivate::deleteChildren (this=this@entry=0x11debc0) at kernel/qobject.cpp:1992
#31 0x00007f12e5dc9624 in QWidget::~QWidget (this=0xe88750, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1709
#32 0x00007f12e5dc9869 in QWidget::~QWidget (this=0xe88750, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1733
#33 0x0000000000411daf in KcmContainer::setContainerLayout (this=this@entry=0xeca290) at /workspace/build/kcmcontainer.cpp:55
#34 0x00000000004120b9 in KcmContainer::setKcm (this=0xeca290, info=...) at /workspace/build/kcmcontainer.cpp:79
#35 0x000000000040efd5 in KInfoCenter::setKcm (this=0xe37290, kcmItem=0xf62110) at /workspace/build/infocenter.cpp:206
#36 0x0000000000415980 in KInfoCenter::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /workspace/build/obj-x86_64-linux-gnu/moc_infocenter.cpp:88
#37 0x00007f12e505e279 in QMetaObject::activate (sender=0xf59540, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffebb1e12c0) at kernel/qobject.cpp:3766
#38 0x00007f12e505eb87 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x61ab60 <SidePanel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffebb1e12c0) at kernel/qobject.cpp:3628
#39 0x000000000041574f in SidePanel::clicked (this=<optimized out>, _t1=0xf62110, _t1@entry=0x7ffebb1e12b8) at /workspace/build/obj-x86_64-linux-gnu/moc_sidepanel.cpp:155
#40 0x0000000000411421 in SidePanel::clickedSlot (this=<optimized out>, index=...) at /workspace/build/sidepanel.cpp:69
#41 0x0000000000415869 in SidePanel::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /workspace/build/obj-x86_64-linux-gnu/moc_sidepanel.cpp:96
#42 0x00007f12e505e279 in QMetaObject::activate (sender=sender@entry=0xf59540, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffebb1e1440) at kernel/qobject.cpp:3766
#43 0x00007f12e505eb87 in QMetaObject::activate (sender=sender@entry=0xf59540, m=m@entry=0x7f12e647fee0 <QAbstractItemView::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffebb1e1440) at kernel/qobject.cpp:3628
#44 0x00007f12e5fd6e55 in QAbstractItemView::clicked (this=this@entry=0xf59540, _t1=...) at .moc/moc_qabstractitemview.cpp:647
#45 0x00007f12e5fda233 in QAbstractItemView::mouseReleaseEvent (this=this@entry=0xf59540, event=event@entry=0x7ffebb1e1c70) at itemviews/qabstractitemview.cpp:1926
#46 0x00007f12e604d9ab in QTreeView::mouseReleaseEvent (this=0xf59540, event=0x7ffebb1e1c70) at itemviews/qtreeview.cpp:1901
#47 0x00007f12e5dcdb08 in QWidget::event (this=this@entry=0xf59540, event=event@entry=0x7ffebb1e1c70) at kernel/qwidget.cpp:9200
#48 0x00007f12e5e752fe in QFrame::event (this=0xf59540, e=0x7ffebb1e1c70) at widgets/qframe.cpp:550
#49 0x00007f12e5fe3b33 in QAbstractItemView::viewportEvent (this=this@entry=0xf59540, event=event@entry=0x7ffebb1e1c70) at itemviews/qabstractitemview.cpp:1748
#50 0x00007f12e604d0fc in QTreeView::viewportEvent (this=0xf59540, event=0x7ffebb1e1c70) at itemviews/qtreeview.cpp:1312
#51 0x00007f12e5031b62 in QCoreApplicationPrivate::sendThroughObjectEventFilters (receiver=receiver@entry=0xf59810, event=event@entry=0x7ffebb1e1c70) at kernel/qcoreapplication.cpp:1129
#52 0x00007f12e5d8eb75 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0xf59810, e=0x7ffebb1e1c70) at kernel/qapplication.cpp:3718
#53 0x00007f12e5d971cb in QApplication::notify (this=<optimized out>, receiver=0xf59810, e=0x7ffebb1e1c70) at kernel/qapplication.cpp:3198
#54 0x00007f12e5031df8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0xf59810, event=event@entry=0x7ffebb1e1c70) at kernel/qcoreapplication.cpp:1018
#55 0x00007f12e5d95b6f in QCoreApplication::sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
#56 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0xf59810, event=event@entry=0x7ffebb1e1c70, alienWidget=alienWidget@entry=0xf59810, nativeWidget=0xe37290, buttonDown=buttonDown@entry=0x7f12e6490820 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2704
#57 0x00007f12e5de7b06 in QWidgetWindow::handleMouseEvent (this=this@entry=0xe61220, event=event@entry=0x7ffebb1e2070) at kernel/qwidgetwindow.cpp:622
#58 0x00007f12e5dea563 in QWidgetWindow::event (this=0xe61220, event=0x7ffebb1e2070) at kernel/qwidgetwindow.cpp:243
#59 0x00007f12e5d8eb9c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0xe61220, e=0x7ffebb1e2070) at kernel/qapplication.cpp:3722
#60 0x00007f12e5d965a7 in QApplication::notify (this=0x7ffebb1e2490, receiver=0xe61220, e=0x7ffebb1e2070) at kernel/qapplication.cpp:3481
#61 0x00007f12e5031df8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0xe61220, event=event@entry=0x7ffebb1e2070) at kernel/qcoreapplication.cpp:1018
#62 0x00007f12e5620860 in QCoreApplication::sendSpontaneousEvent (event=0x7ffebb1e2070, receiver=0xe61220) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#63 QGuiApplicationPrivate::processMouseEvent (e=0x11b3340) at kernel/qguiapplication.cpp:1949
#64 0x00007f12e56227c5 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x11b3340) at kernel/qguiapplication.cpp:1733
#65 0x00007f12e55fc81b in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:939
#66 0x00007f12d7176570 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WaylandClient.so.5
#67 0x00007f12debda197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#68 0x00007f12debda3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#69 0x00007f12debda49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#70 0x00007f12e50876af in QEventDispatcherGlib::processEvents (this=0xdda3c0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#71 0x00007f12e502fe2a in QEventLoop::exec (this=this@entry=0x7ffebb1e2420, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#72 0x00007f12e5038d64 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1291
#73 0x00007f12e561820c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1679
#74 0x00007f12e5d8eaf5 in QApplication::exec () at kernel/qapplication.cpp:2910
#75 0x000000000040df69 in main (argc=1, argv=<optimized out>) at /workspace/build/main.cpp:75

The reporter indicates this bug may be a duplicate of or related to bug 387479.

Possible duplicates by query: bug 387479, bug 382128, bug 381457, bug 381359, bug 380373.

Reported using DrKonqi