Bug 323027

Summary:	systemsettings crashed while browsing the module tree
Product:	[Applications] systemsettings	Reporter:	kavol <kavol>
Component:	treeview	Assignee:	System Settings Bugs <sourtooth+ssbugs>
Status:	RESOLVED FIXED
Severity:	crash	CC:	bcooksley, cfeck, plucinski.mariusz
Priority:	NOR
Version:	4.11.3
Target Milestone:	---
Platform:	Gentoo Packages
OS:	Linux
Latest Commit:	http://commits.kde.org/kde-workspace/e43223a69ae6f80bdab42b5f09f27ded854c41bb	Version Fixed In:	4.11.4
Attachments:	New crash information added by DrKonqi New crash information added by DrKonqi

Description kavol 2013-07-30 22:10:40 UTC

Application: systemsettings (1.0)
KDE Platform Version: 4.10.5
Qt Version: 4.8.4
Operating System: Linux 3.8.13-gentoo x86_64
Distribution: "Gentoo Base System release 2.2"

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

I was trying to retest bug #296465.
I went to powermanagement settings, and it was grayed out just like on the screenshot attached to that bug. I tried to choose different module, but instead of seeing settings for that module, there was still the error messsage about the powermanagement. I tried to click some other modules and it crashed.

-- Backtrace:
Application: Nastavení systému (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc640e06800 (LWP 15818))]

Thread 2 (Thread 0x7fc620930700 (LWP 15829)):
#0  0x00007fc63dd32a93 in *__GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fc63750e6d6 in g_main_context_poll (n_fds=1, fds=0x7fc61c002bc0, timeout=-1, context=0x7fc61c0009c0, priority=<optimized out>) at gmain.c:3440
#2  g_main_context_iterate (context=0x7fc61c0009c0, block=1, dispatch=1, self=<optimized out>) at gmain.c:3141
#3  0x00007fc63750e7f4 in g_main_context_iteration (context=0x7fc61c0009c0, may_block=1) at gmain.c:3207
#4  0x00007fc63e4afe06 in QEventDispatcherGlib::processEvents (this=0x7fc61c0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fc63e47f7b2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fc63e47fa07 in QEventLoop::exec (this=0x7fc62092fd30, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fc63e37e157 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#8  0x00007fc63e45f28f in QInotifyFileSystemWatcherEngine::run (this=0x3af0680) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00007fc63e3811bc in QThreadPrivate::start (arg=0x3af0680) at thread/qthread_unix.cpp:338
#10 0x00007fc6377eeda6 in start_thread (arg=0x7fc620930700) at pthread_create.c:305
#11 0x00007fc63dd3b99d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7fc640e06800 (LWP 15818)):
[KCrash Handler]
#6  0x00007fc63fee9f1e in KCModule::setNeedsAuthorization (this=0x24fd1b0, needsAuth=<optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kdeui/widgets/kcmodule.cpp:150
#7  0x00007fc61a9608f0 in KDModule::KDModule (this=0x24fd1b0, parent=<optimized out>) at /var/tmp/portage/kde-base/kdm-4.10.5-r1/work/kdm-4.10.5/kdm/kcm/main.cpp:275
#8  0x00007fc61a963094 in KPluginFactory::createInstance<KDModule, QWidget> (parentWidget=<optimized out>, parent=<optimized out>, args=...) at /usr/include/kpluginfactory.h:477
#9  0x00007fc63ec93121 in KPluginFactory::create (this=0x27fe370, iface=0x7fc63ffd8400 <qt_meta_stringdata_KCModule> "KCModule", parentWidget=0x0, parent=0x28154b0, args=..., keyword=...) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kdecore/util/kpluginfactory.cpp:203
#10 0x00007fc6404c39f8 in create<KCModule> (parent=0x28154b0, this=0x27fe370, args=..., keyword=..., parentWidget=0x0) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kdecore/util/kpluginfactory.h:531
#11 createInstance<KCModule> (error=0x7ffffa575120, args=..., parent=0x28154b0, parentWidget=0x0, this=0x2516a00) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kdecore/services/kservice.h:559
#12 createInstance<KCModule> (error=0x7ffffa575120, args=..., parent=0x28154b0, this=0x2516a00) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kdecore/services/kservice.h:536
#13 KCModuleLoader::loadModule (mod=..., report=KCModuleLoader::Inline, parent=0x28154b0, args=...) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kutils/kcmoduleloader.cpp:89
#14 0x00007fc6404c88e8 in KCModuleProxyPrivate::loadModule (this=0x3b006b0) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kutils/kcmoduleproxy.cpp:106
#15 0x00007fc6404c9605 in KCModuleProxy::realModule (this=<optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kutils/kcmoduleproxy.cpp:83
#16 0x00007fc6404c9642 in KCModuleProxy::showEvent (this=0x28154b0, ev=0x7ffffa575fb0) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kutils/kcmoduleproxy.cpp:197
#17 0x00007fc63f17c03a in QWidget::event (this=0x28154b0, event=0x7ffffa575fb0) at kernel/qwidget.cpp:8593
#18 0x00007fc63f12b0d4 in notify_helper (e=0x7ffffa575fb0, receiver=0x28154b0, this=0x2247880) at kernel/qapplication.cpp:4562
#19 QApplicationPrivate::notify_helper (this=0x2247880, receiver=0x28154b0, e=0x7ffffa575fb0) at kernel/qapplication.cpp:4534
#20 0x00007fc63f12fea3 in QApplication::notify (this=0x7ffffa5788f0, receiver=0x28154b0, e=0x7ffffa575fb0) at kernel/qapplication.cpp:4423
#21 0x00007fc63fe543b6 in KApplication::notify (this=0x7ffffa5788f0, receiver=0x28154b0, event=0x7ffffa575fb0) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kdeui/kernel/kapplication.cpp:311
#22 0x00007fc63e480c7c in QCoreApplication::notifyInternal (this=0x7ffffa5788f0, receiver=0x28154b0, event=0x7ffffa575fb0) at kernel/qcoreapplication.cpp:946
#23 0x00007fc63f17deb0 in sendEvent (event=0x7ffffa575fb0, receiver=0x28154b0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 QWidgetPrivate::show_helper (this=0x256c7e0) at kernel/qwidget.cpp:7555
#25 0x00007fc63f17dca7 in QWidgetPrivate::showChildren (this=<optimized out>, spontaneous=false) at kernel/qwidget.cpp:7863
#26 0x00007fc63f17dd9d in QWidgetPrivate::show_helper (this=0x2abe670) at kernel/qwidget.cpp:7502
#27 0x00007fc63f17e1a2 in QWidget::setVisible (this=0x24edf70, visible=<optimized out>) at kernel/qwidget.cpp:7777
#28 0x00007fc63f17dd16 in show (this=0x24edf70) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:494
#29 QWidgetPrivate::showChildren (this=<optimized out>, spontaneous=false) at kernel/qwidget.cpp:7865
#30 0x00007fc63f17dd9d in QWidgetPrivate::show_helper (this=0x3b03a70) at kernel/qwidget.cpp:7502
#31 0x00007fc63f17e1a2 in QWidget::setVisible (this=0x3af77d0, visible=<optimized out>) at kernel/qwidget.cpp:7777
#32 0x00007fc63f15fa19 in show (this=0x3af77d0) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:494
#33 QStackedLayout::setCurrentIndex (this=0x2531570, index=1) at kernel/qstackedlayout.cpp:311
#34 0x00007fc63fe84337 in KPageViewPrivate::_k_pageSelected (this=0x2431060, index=..., previous=...) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kdeui/paged/kpageview.cpp:235
#35 0x00007fc63e494ae1 in QMetaObject::activate (sender=0x3b3b690, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7ffffa5764a0) at kernel/qobject.cpp:3539
#36 0x00007fc63f679707 in QItemSelectionModel::selectionChanged (this=<optimized out>, _t1=..., _t2=...) at .moc/release-shared/moc_qitemselectionmodel.cpp:166
#37 0x00007fc63f67f564 in QItemSelectionModel::emitSelectionChanged (this=0x3b3b690, newSelection=..., oldSelection=...) at itemviews/qitemselectionmodel.cpp:1544
#38 0x00007fc63f6804f1 in QItemSelectionModel::select (this=0x3b3b690, selection=..., command=...) at itemviews/qitemselectionmodel.cpp:1110
#39 0x00007fc63f67b73a in QItemSelectionModel::select (this=0x3b3b690, index=..., command=...) at itemviews/qitemselectionmodel.cpp:985
#40 0x00007fc63f679977 in QItemSelectionModel::setCurrentIndex (this=0x3b3b690, index=..., command=...) at itemviews/qitemselectionmodel.cpp:1174
#41 0x00007fc63fe83087 in KPageViewPrivate::_k_rebuildGui (this=0x2431060) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kdeui/paged/kpageview.cpp:70
#42 0x00007fc63fe84085 in KPageViewPrivate::_k_modelChanged (this=0x2431060) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kdeui/paged/kpageview.cpp:190
#43 0x00007fc63e494ae1 in QMetaObject::activate (sender=0x24d97a0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#44 0x00007fc63fe89400 in KPageWidgetModel::addPage (this=0x24d97a0, item=0x28e6050) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kdeui/paged/kpagewidgetmodel.cpp:401
#45 0x00007fc64029f9ec in ModuleView::addModule (this=0x24ff3e0, module=0x255cab8) at /var/tmp/portage/kde-base/systemsettings-4.10.5/work/systemsettings-4.10.5/systemsettings/core/ModuleView.cpp:191
#46 0x00007fc64029fe62 in ModuleView::loadModule (this=0x24ff3e0, menuItem=...) at /var/tmp/portage/kde-base/systemsettings-4.10.5/work/systemsettings-4.10.5/systemsettings/core/ModuleView.cpp:144
#47 0x00007fc624bc4122 in changeModule (activeModule=..., this=0x21fd390) at /var/tmp/portage/kde-base/systemsettings-4.10.5/work/systemsettings-4.10.5/systemsettings/classic/ClassicMode.cpp:165
#48 ClassicMode::changeModule (this=0x21fd390, activeModule=...) at /var/tmp/portage/kde-base/systemsettings-4.10.5/work/systemsettings-4.10.5/systemsettings/classic/ClassicMode.cpp:154
#49 0x00007fc63e494ae1 in QMetaObject::activate (sender=0x23c3110, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7ffffa576e90) at kernel/qobject.cpp:3539
#50 0x00007fc63f6234a5 in QAbstractItemView::clicked (this=<optimized out>, _t1=...) at .moc/release-shared/moc_qabstractitemview.cpp:348
#51 0x00007fc63f623868 in QAbstractItemView::mouseReleaseEvent (this=0x23c3110, event=0x7ffffa577db0) at itemviews/qabstractitemview.cpp:1814
#52 0x00007fc63f17b90c in QWidget::event (this=0x23c3110, event=0x7ffffa577db0) at kernel/qwidget.cpp:8375
#53 0x00007fc63f511936 in QFrame::event (this=0x23c3110, e=0x7ffffa577db0) at widgets/qframe.cpp:557
#54 0x00007fc63f62237b in QAbstractItemView::viewportEvent (this=0x23c3110, event=0x7ffffa577db0) at itemviews/qabstractitemview.cpp:1644
#55 0x00007fc63f669135 in QTreeView::viewportEvent (this=0x23c3110, event=0x7ffffa577db0) at itemviews/qtreeview.cpp:1257
#56 0x00007fc63e480e08 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x25e0e10, event=0x7ffffa577db0) at kernel/qcoreapplication.cpp:1056
#57 0x00007fc63f12b09f in notify_helper (e=0x7ffffa577db0, receiver=0x25e0e10, this=0x2247880) at kernel/qapplication.cpp:4558
#58 QApplicationPrivate::notify_helper (this=0x2247880, receiver=0x25e0e10, e=0x7ffffa577db0) at kernel/qapplication.cpp:4534
#59 0x00007fc63f130773 in QApplication::notify (this=<optimized out>, receiver=0x25e0e10, e=0x7ffffa577db0) at kernel/qapplication.cpp:4105
#60 0x00007fc63fe543b6 in KApplication::notify (this=0x7ffffa5788f0, receiver=0x25e0e10, event=0x7ffffa577db0) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kdeui/kernel/kapplication.cpp:311
#61 0x00007fc63e480c7c in QCoreApplication::notifyInternal (this=0x7ffffa5788f0, receiver=0x25e0e10, event=0x7ffffa577db0) at kernel/qcoreapplication.cpp:946
#62 0x00007fc63f12c0a2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#63 QApplicationPrivate::sendMouseEvent (receiver=0x25e0e10, event=0x7ffffa577db0, alienWidget=0x25e0e10, nativeWidget=0x23c3110, buttonDown=0x25e0e10, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3173
#64 0x00007fc63f1a7a78 in QETWidget::translateMouseEvent (this=0x23c3110, event=<optimized out>) at kernel/qapplication_x11.cpp:4516
#65 0x00007fc63f1a686a in QApplication::x11ProcessEvent (this=0x7ffffa5788f0, event=0x7ffffa5784d0) at kernel/qapplication_x11.cpp:3639
#66 0x00007fc63f1cdf32 in x11EventSourceDispatch (s=0x2248a70, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#67 0x00007fc63750e3f2 in g_main_dispatch (context=0x2248840) at gmain.c:2539
#68 g_main_context_dispatch (context=0x2248840) at gmain.c:3075
#69 0x00007fc63750e738 in g_main_context_iterate (context=0x2248840, block=1, dispatch=1, self=<optimized out>) at gmain.c:3146
#70 0x00007fc63750e7f4 in g_main_context_iteration (context=0x2248840, may_block=1) at gmain.c:3207
#71 0x00007fc63e4afd9f in QEventDispatcherGlib::processEvents (this=0x2180ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#72 0x00007fc63f1cdbce in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#73 0x00007fc63e47f7b2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#74 0x00007fc63e47fa07 in QEventLoop::exec (this=0x7ffffa578880, flags=...) at kernel/qeventloop.cpp:204
#75 0x00007fc63e484825 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#76 0x000000000040bf85 in main (argc=1, argv=0x7ffffa578bb8) at /var/tmp/portage/kde-base/systemsettings-4.10.5/work/systemsettings-4.10.5/systemsettings/app/main.cpp:49

This bug may be a duplicate of or related to bug 247830.

Possible duplicates by query: bug Ručně.

Reported using DrKonqi

Comment 1 Mariusz Plucinski 2013-09-18 15:29:51 UTC

Created attachment 82393 [details]
New crash information added by DrKonqi

systemsettings (1.0) on KDE Platform 4.10.5 using Qt 4.8.5

- What I was doing when the application crashed:

I have opened system settings and put it minimalized for a long time (about two days, hibernated system meanwhile). After that, I restored it and cliecked on "Login Screen" entry in tree view. Suddenly, application crashed.

-- Backtrace (Reduced):
#6  0x0000003cf74d507e in KCModule::setNeedsAuthorization (this=0x38b38a0, needsAuth=<optimized out>) at /usr/src/debug/kdelibs-4.10.5/kdeui/widgets/kcmodule.cpp:150
#7  0x00007f800f7b7b4d in KDModule::KDModule (this=0x38b38a0, parent=<optimized out>) at /usr/src/debug/kde-workspace-4.10.5/kdm/kcm/main.cpp:276
#8  0x00007f800f7b99a4 in KPluginFactory::createInstance<KDModule, QWidget> (parentWidget=<optimized out>, parent=<optimized out>, args=...) at /usr/include/kde4/kpluginfactory.h:477
#9  0x0000003270a13ae5 in KPluginFactory::create (this=0x52e8550, iface=0x3cf75b3f60 <qt_meta_stringdata_KCModule> "KCModule", parentWidget=0x0, parent=0x38e8b10, args=..., keyword=...) at /usr/src/debug/kdelibs-4.10.5/kdecore/util/kpluginfactory.cpp:203
#10 0x0000003cfb01b8ca in create<KCModule> (args=..., keyword=..., parent=0x38e8b10, parentWidget=0x0, this=<optimized out>) at /usr/src/debug/kdelibs-4.10.5/kdecore/util/kpluginfactory.h:531

Comment 2 Mariusz Plucinski 2013-11-06 12:11:37 UTC

Created attachment 83369 [details]
New crash information added by DrKonqi

systemsettings (4.11.2) on KDE Platform 4.11.2 using Qt 4.8.5

I found a way to reproduce the bug every time. Steps:

1. Run systemsettings
2. Make sure you are in "Classic Tree View" (Configuration->General)
3. Open "System Administration" tree node
4. Double-click on "Login Screen" leaf node

The double-click seems essential to reproduce issue, but it sometimes does not happen when other system settings pages were opened. It always happens if I try double-click directly after opening system settings.

-- Backtrace (Reduced):
#6  0x00000039838cd1c1 in KCModule::setNeedsAuthorization (this=this@entry=0x5f99b60, needsAuth=needsAuth@entry=true) at /usr/src/debug/kdelibs-4.11.2/kdeui/widgets/kcmodule.cpp:150
#7  0x00007f6bd7de21ad in KDModule::KDModule (this=0x5f99b60, parent=<optimized out>) at /usr/src/debug/kde-workspace-4.11.2/kdm/kcm/main.cpp:276
#8  0x00007f6bd7de362b in KPluginFactory::createInstance<KDModule, QWidget> (parentWidget=<optimized out>, parent=<optimized out>, args=...) at /usr/include/kde4/kpluginfactory.h:477
#9  0x0000003982e0e393 in KPluginFactory::create (this=0x25c8e30, iface=0x39839a8320 <qt_meta_stringdata_KCModule> "KCModule", parentWidget=0x0, parent=0x41430e0, args=..., keyword=...) at /usr/src/debug/kdelibs-4.11.2/kdecore/util/kpluginfactory.cpp:203
#10 0x000000398681b87e in create<KCModule> (args=..., keyword=..., parent=0x41430e0, parentWidget=0x0, this=0x25c8e30) at /usr/src/debug/kdelibs-4.11.2/kdecore/util/kpluginfactory.h:531

Comment 3 Christoph Feck 2013-11-17 15:15:32 UTC

Reproducible with the steps from comment #2.

Comment 4 Ben Cooksley 2013-11-19 08:24:02 UTC

Git commit e43223a69ae6f80bdab42b5f09f27ded854c41bb by Ben Cooksley.
Committed on 19/11/2013 at 08:23.
Pushed by bcooksley into branch 'KDE/4.11'.

Track the currently active module, and don't try to change module if it is the same module.
This prevents a module from being closed and then immediately reopened.

M  +5    -0    systemsettings/classic/ClassicMode.cpp

http://commits.kde.org/kde-workspace/e43223a69ae6f80bdab42b5f09f27ded854c41bb

Comment 5 Christoph Feck 2013-11-19 11:18:52 UTC

Merci :) Unfortunately, still crashes with the same steps. Backtrace is the same:

Application: System Settings (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0xb13efa80 (LWP 32318))]

Thread 2 (Thread 0xabb3bb40 (LWP 32328)):
#0  0xb7729424 in __kernel_vsyscall ()
#1  0xb57b4e3b in poll () from /lib/libc.so.6
#2  0xb251598b in g_poll () from /usr/lib/libglib-2.0.so.0
#3  0xb2506af8 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0xb2506fdb in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#5  0xabc13fca in ?? () from /usr/lib/libgio-2.0.so.0
#6  0xb252cd5a in ?? () from /usr/lib/libglib-2.0.so.0
#7  0xb59db07a in start_thread () from /lib/libpthread.so.0
#8  0xb57c080e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb13efa80 (LWP 32318)):
[KCrash Handler]
#6  0xb5e7e371 in KAboutData::appName() const () from /local/kde4/lib/libkdecore.so.5
#7  0xb6dd9ebf in KCModule::setNeedsAuthorization(bool) () from /local/kde4/lib/libkdeui.so.5
#8  0xabdda420 in KDModule::KDModule(QWidget*, QList<QVariant> const&) () from /local/KDE4/trunk/lib/kde4/kcm_kdm.so
#9  0xabddb54a in QObject* KPluginFactory::createInstance<KDModule, QWidget>(QWidget*, QObject*, QList<QVariant> const&) () from /local/KDE4/trunk/lib/kde4/kcm_kdm.so
#10 0xb5f66e84 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () from /local/kde4/lib/libkdecore.so.5
#11 0xb7149a36 in KCModuleLoader::loadModule(KCModuleInfo const&, KCModuleLoader::ErrorReporting, QWidget*, QStringList const&) () from /local/kde4/lib/libkcmutils.so.4
#12 0xb714f3fe in KCModuleProxyPrivate::loadModule() () from /local/kde4/lib/libkcmutils.so.4
#13 0xb714fbe4 in KCModuleProxy::realModule() const () from /local/kde4/lib/libkcmutils.so.4
#14 0xb712c746 in ModuleView::stateChanged (this=this@entry=0x9361638) at /local/git/KDE/base/kde-workspace/systemsettings/core/ModuleView.cpp:350
#15 0xb712c857 in ModuleView::activeModuleChanged (this=0x9361638, current=0x92aaf70, previous=0x0) at /local/git/KDE/base/kde-workspace/systemsettings/core/ModuleView.cpp:337
#16 0xb712d5ae in ModuleView::qt_static_metacall (_o=0x9001b, _id=255, _a=0xbfc4d854, _c=<optimized out>) at /local/build/KDE/base/kde-workspace/systemsettings/core/ModuleView.moc:75
#17 0xb5b82c55 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#18 0xb6d71e8d in KPageWidget::currentPageChanged(KPageWidgetItem*, KPageWidgetItem*) () from /local/kde4/lib/libkdeui.so.5
#19 0xb6d71f1c in KPageWidgetPrivate::_k_slotCurrentPageChanged(QModelIndex const&, QModelIndex const&) () from /local/kde4/lib/libkdeui.so.5
#20 0xb5b82c55 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#21 0xb6d6d62d in KPageView::currentPageChanged(QModelIndex const&, QModelIndex const&) () from /local/kde4/lib/libkdeui.so.5
#22 0xb6d6de75 in KPageViewPrivate::_k_pageSelected(QItemSelection const&, QItemSelection const&) () from /local/kde4/lib/libkdeui.so.5
#23 0xb5b82c55 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#24 0xb6755c9d in QItemSelectionModel::selectionChanged(QItemSelection const&, QItemSelection const&) () from /usr/lib/libQtGui.so.4
#25 0xb675b57b in QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection const&) () from /usr/lib/libQtGui.so.4
#26 0xb675bd3f in QItemSelectionModel::select(QItemSelection const&, QFlags<QItemSelectionModel::SelectionFlag>) () from /usr/lib/libQtGui.so.4
#27 0xb6756c1d in QItemSelectionModel::select(QModelIndex const&, QFlags<QItemSelectionModel::SelectionFlag>) () from /usr/lib/libQtGui.so.4
#28 0xb6755f84 in QItemSelectionModel::setCurrentIndex(QModelIndex const&, QFlags<QItemSelectionModel::SelectionFlag>) () from /usr/lib/libQtGui.so.4
#29 0xb6d6cd9c in KPageViewPrivate::_k_rebuildGui() () from /local/kde4/lib/libkdeui.so.5
#30 0xb6d6da00 in KPageViewPrivate::_k_modelChanged() () from /local/kde4/lib/libkdeui.so.5
#31 0xb5b82c55 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#32 0xb5bd2525 in QAbstractItemModel::layoutChanged() () from /usr/lib/libQtCore.so.4
#33 0xb6d73936 in KPageWidgetModel::addPage(KPageWidgetItem*) () from /local/kde4/lib/libkdeui.so.5
#34 0xb6d71c79 in KPageWidget::addPage(KPageWidgetItem*) () from /local/kde4/lib/libkdeui.so.5
#35 0xb712d0a1 in ModuleView::addModule (this=0x9361638, module=0x93d96d4) at /local/git/KDE/base/kde-workspace/systemsettings/core/ModuleView.cpp:191
#36 0xb712d369 in ModuleView::loadModule (this=0x9361638, menuItem=...) at /local/git/KDE/base/kde-workspace/systemsettings/core/ModuleView.cpp:144
#37 0xae5cc021 in ClassicMode::changeModule (this=0x93b5b78, activeModule=...) at /local/git/KDE/base/kde-workspace/systemsettings/classic/ClassicMode.cpp:169
#38 0xae5cd0df in ClassicMode::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=0xbfc4e098, _c=<optimized out>) at /local/build/KDE/base/kde-workspace/systemsettings/classic/ClassicMode.moc:69
#39 0xb5b82c55 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#40 0xb66fb285 in QAbstractItemView::activated(QModelIndex const&) () from /usr/lib/libQtGui.so.4
#41 0xb66fb5ca in QAbstractItemView::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#42 0xb674b698 in QTreeView::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#43 0xb61cb58a in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#44 0xb65d0cbc in QFrame::event(QEvent*) () from /usr/lib/libQtGui.so.4
#45 0xb665ff68 in QAbstractScrollArea::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#46 0xb670512c in QAbstractItemView::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#47 0xb674b1e6 in QTreeView::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#48 0xb66601e6 in ?? () from /usr/lib/libQtGui.so.4
#49 0xb5b6e12e in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#50 0xb6171491 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#51 0xb6179105 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#52 0xb6d3a544 in KApplication::notify(QObject*, QEvent*) () from /local/kde4/lib/libkdeui.so.5
#53 0xb5b6dfba in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#54 0xb6177741 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/libQtGui.so.4
#55 0xb61f8078 in ?? () from /usr/lib/libQtGui.so.4
#56 0xb61f6740 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#57 0xb6221464 in ?? () from /usr/lib/libQtGui.so.4
#58 0xb25067ce in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#59 0xb2506b78 in ?? () from /usr/lib/libglib-2.0.so.0
#60 0xb2506c38 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#61 0xb5b9d5ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#62 0xb622151e in ?? () from /usr/lib/libQtGui.so.4
#63 0xb5b6ca03 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#64 0xb5b6cd29 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#65 0xb5b724fe in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#66 0xb616f944 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#67 0x08050fa0 in main (argc=1, argv=0xbfc4ee54) at /local/git/KDE/base/kde-workspace/systemsettings/app/main.cpp:49

Comment 6 Ben Cooksley 2013-11-19 11:38:07 UTC

I've made a change in b2f688615c4cbfb972a726c45695e9d10c44fcf9 which should hopefully mitigate this further. Seems fixed as far as I can tell.