Bug 409794

Application: systemsettings5 (5.16.80)

Qt Version: 5.12.3
Frameworks Version: 5.61.0
Operating System: Linux 4.18.0-25-generic x86_64
Distribution: KDE neon Unstable Edition

-- Information about the crash:
- What I was doing when the application crashed:
System Settings crashes when I click the Desktop Behavior section

The crash can be reproduced every time.

-- 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 0x7f46bcbc2800 (LWP 3753))]

Thread 7 (Thread 0x7f46815f0700 (LWP 3762)):
#0  0x00007f46b81070b4 in __GI___libc_read (fd=18, buf=0x7f46815efb70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f46b15d32d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f46b158e0b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f46b158e570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f46b158e6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f46b8a4edcb in QEventDispatcherGlib::processEvents (this=0x7f4674000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f46b89f003a in QEventLoop::exec (this=this@entry=0x7f46815efd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f46b88174ca in QThread::exec (this=this@entry=0x7f469c010a40) at thread/qthread.cpp:531
#8  0x00007f46b65cd115 in QQmlThreadPrivate::run (this=0x7f469c010a40) at qml/ftw/qqmlthread.cpp:148
#9  0x00007f46b8818c72 in QThreadPrivate::start (arg=0x7f469c010a40) at thread/qthread_unix.cpp:361
#10 0x00007f46b394d6db in start_thread (arg=0x7f46815f0700) at pthread_create.c:463
#11 0x00007f46b811888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f46835ef700 (LWP 3761)):
#0  0x00007f46b810bbf9 in __GI___poll (fds=0x7f467c003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f46b158e5c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f46b158e6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f46b8a4edcb in QEventDispatcherGlib::processEvents (this=0x7f467c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f46b89f003a in QEventLoop::exec (this=this@entry=0x7f46835eed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f46b88174ca in QThread::exec (this=this@entry=0x55a9c2261800) at thread/qthread.cpp:531
#6  0x00007f46b65cd115 in QQmlThreadPrivate::run (this=0x55a9c2261800) at qml/ftw/qqmlthread.cpp:148
#7  0x00007f46b8818c72 in QThreadPrivate::start (arg=0x55a9c2261800) at thread/qthread_unix.cpp:361
#8  0x00007f46b394d6db in start_thread (arg=0x7f46835ef700) at pthread_create.c:463
#9  0x00007f46b811888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f468c552700 (LWP 3759)):
#0  0x00007f46b81070b4 in __GI___libc_read (fd=13, buf=0x7f468c551b70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f46b15d32d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f46b158e0b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f46b158e570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f46b158e6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f46b8a4edcb in QEventDispatcherGlib::processEvents (this=0x7f4684000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f46b89f003a in QEventLoop::exec (this=this@entry=0x7f468c551d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f46b88174ca in QThread::exec (this=this@entry=0x55a9c1f02d60) at thread/qthread.cpp:531
#8  0x00007f46b65cd115 in QQmlThreadPrivate::run (this=0x55a9c1f02d60) at qml/ftw/qqmlthread.cpp:148
#9  0x00007f46b8818c72 in QThreadPrivate::start (arg=0x55a9c1f02d60) at thread/qthread_unix.cpp:361
#10 0x00007f46b394d6db in start_thread (arg=0x7f468c552700) at pthread_create.c:463
#11 0x00007f46b811888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f46989ac700 (LWP 3757)):
#0  0x00007f46b39539f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a9c1c28508) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55a9c1c284b8, cond=0x55a9c1c284e0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55a9c1c284e0, mutex=0x55a9c1c284b8) at pthread_cond_wait.c:655
#3  0x00007f4699dd13da in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f4699dd1107 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f46b394d6db in start_thread (arg=0x7f46989ac700) at pthread_create.c:463
#6  0x00007f46b811888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f46a1424700 (LWP 3756)):
#0  0x00007f46b810bbf9 in __GI___poll (fds=0x7f469c004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f46b158e5c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f46b158e6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f46b8a4edcb in QEventDispatcherGlib::processEvents (this=0x7f469c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f46b89f003a in QEventLoop::exec (this=this@entry=0x7f46a1423d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f46b88174ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007f46b8ebd015 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f46b8818c72 in QThreadPrivate::start (arg=0x7f46b9134d80) at thread/qthread_unix.cpp:361
#8  0x00007f46b394d6db in start_thread (arg=0x7f46a1424700) at pthread_create.c:463
#9  0x00007f46b811888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f46a9344700 (LWP 3755)):
#0  0x00007f46b810bbf9 in __GI___poll (fds=0x7f46a9343ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f46b3511747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f46b351336a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f46ac12b578 in QXcbEventQueue::run (this=0x55a9c1b156c0) at qxcbeventqueue.cpp:228
#4  0x00007f46b8818c72 in QThreadPrivate::start (arg=0x55a9c1b156c0) at thread/qthread_unix.cpp:361
#5  0x00007f46b394d6db in start_thread (arg=0x7f46a9344700) at pthread_create.c:463
#6  0x00007f46b811888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f46bcbc2800 (LWP 3753)):
[KCrash Handler]
#6  QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::operator-> (this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:118
#7  qGetPtrHelper<QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > > (ptr=...) at global/qglobal.h:1038
#8  QObject::d_func (this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:121
#9  QObject::property (this=0x0, name=name@entry=0x7f46bc5b5209 "pageStack") at kernel/qobject.cpp:3961
#10 0x00007f46bc5947dd in KCModuleQml::KCModuleQml (this=0x55a9c51fb5b0, configModule=<optimized out>, parent=<optimized out>, args=...) at ./src/kcmoduleqml.cpp:162
#11 0x00007f46bc59232e in KCModuleLoader::loadModule (mod=..., report=report@entry=KCModuleLoader::Inline, parent=0x55a9c1ed2d50, args=...) at ./src/kcmoduleloader.cpp:106
#12 0x00007f46bc5998cf in KCModuleProxyPrivate::loadModule (this=this@entry=0x55a9c51fb640) at ./src/kcmoduleproxy.cpp:102
#13 0x00007f46bc59a428 in KCModuleProxy::realModule (this=this@entry=0x55a9c1ed2d50) at ./src/kcmoduleproxy.cpp:75
#14 0x00007f46bc7d42f2 in ModuleView::updatePageIconHeader (this=this@entry=0x55a9c1eccbf0, page=page@entry=0x55a9c5002200, light=light@entry=true) at ./core/ModuleView.cpp:219
#15 0x00007f46bc7d5156 in ModuleView::addModule (this=this@entry=0x55a9c1eccbf0, module=0x55a9c1ebc4c8) at ./core/ModuleView.cpp:196
#16 0x00007f46bc7d54ed in ModuleView::loadModule (this=this@entry=0x55a9c1eccbf0, menuItem=...) at ./core/ModuleView.cpp:151
#17 0x00007f468f6f8cc1 in SidebarMode::changeModule (this=this@entry=0x55a9c1ec93e0, activeModule=...) at ./sidebar/SidebarMode.cpp:407
#18 0x00007f468f6f90a6 in SidebarMode::setActiveCategory (this=0x55a9c1ec93e0, cat=<optimized out>) at ./sidebar/SidebarMode.cpp:439
#19 0x00007f468f6fdb87 in SidebarMode::qt_static_metacall (_o=_o@entry=0x55a9c1ec93e0, _c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=3, _a=_a@entry=0x7ffd68838e10) at ./obj-x86_64-linux-gnu/sidebar/systemsettings_sidebar_mode_autogen/EWIEGA46WW/moc_SidebarMode.cpp:312
#20 0x00007f468f6fddc3 in SidebarMode::qt_metacall (this=0x55a9c1ec93e0, _c=QMetaObject::WriteProperty, _id=3, _a=0x7ffd68838e10) at ./obj-x86_64-linux-gnu/sidebar/systemsettings_sidebar_mode_autogen/EWIEGA46WW/moc_SidebarMode.cpp:361
#21 0x00007f46b647a9b3 in QV4::QObjectWrapper::setProperty (engine=engine@entry=0x55a9c1f07690, object=object@entry=0x55a9c1ec93e0, property=0x55a9c20673c8, value=...) at jsruntime/qv4qobjectwrapper.cpp:536
#22 0x00007f46b647b4ee in QV4::QObjectWrapper::setQmlProperty (engine=0x55a9c1f07690, qmlContext=<optimized out>, object=0x55a9c1ec93e0, name=<optimized out>, revisionMode=QV4::QObjectWrapper::IgnoreRevision, value=...) at jsruntime/qv4qobjectwrapper.cpp:437
#23 0x00007f46b647b689 in QV4::QObjectWrapper::virtualPut (m=0x7f468b913540, id=..., value=..., receiver=0x7f468b913540) at jsruntime/qv4qobjectwrapper.cpp:723
#24 0x00007f46b64406d9 in QV4::Object::put (receiver=0x7f468b913540, v=..., id=..., this=0x7f468b913540) at jsruntime/qv4object_p.h:324
#25 QV4::Object::virtualResolveLookupSetter (object=0x7f468b913540, engine=0x55a9c1f07690, lookup=0x55a9c1fd91b0, value=...) at jsruntime/qv4object.cpp:800
#26 0x00007f46b6492a41 in QV4::Moth::VME::interpret (frame=0x7ffd688391c0, engine=0x55a9c1f07690, code=0x7f46bca3559a ".\r\030\b.\016:\017>\020\b\016\002") at jsruntime/qv4vme_moth.cpp:630
#27 0x00007f46b6497406 in QV4::Moth::VME::exec (frame=frame@entry=0x7ffd688391c0, engine=engine@entry=0x55a9c1f07690) at jsruntime/qv4vme_moth.cpp:441
#28 0x00007f46b642652b in QV4::Function::call (this=this@entry=0x55a9c1fdaf00, thisObject=thisObject@entry=0x7f468b9134e8, argv=argv@entry=0x7f468b913500, argc=<optimized out>, context=<optimized out>) at jsruntime/qv4function.cpp:68
#29 0x00007f46b65995f7 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x55a9c4fcba00, callData=callData@entry=0x7f468b9134d0, isUndefined=isUndefined@entry=0x0) at qml/qqmljavascriptexpression.cpp:211
#30 0x00007f46b653d8e9 in QQmlBoundSignalExpression::evaluate (this=this@entry=0x55a9c4fcba00, a=a@entry=0x0) at qml/qqmlboundsignal.cpp:225
#31 0x00007f46b653ec6b in QQmlBoundSignal_callback (e=0x55a9c4fcb9b0, a=0x0) at qml/qqmlboundsignal.cpp:358
#32 0x00007f46b6579c12 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:104
#33 0x00007f46b651f8e9 in QQmlData::signalEmitted (object=0x55a9c4fba080, index=<optimized out>, a=0x0) at qml/qqmlengine.cpp:883
#34 0x00007f46b8a210af in QMetaObject::activate (sender=0x55a9c4fba080, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x0) at kernel/qobject.cpp:3664
#35 0x00007f46b8a21f47 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f46a3a2f440 <QQuickAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x0) at kernel/qobject.cpp:3648
#36 0x00007f46a37cd403 in QQuickAbstractButton::clicked (this=<optimized out>) at .moc/moc_qquickabstractbutton_p.cpp:629
#37 0x00007f46a3759466 in QQuickAbstractButtonPrivate::trigger (this=this@entry=0x55a9c4fba140) at qquickabstractbutton.cpp:336
#38 0x00007f46a375b308 in QQuickAbstractButtonPrivate::handleRelease (this=0x55a9c4fba140, point=...) at qquickabstractbutton.cpp:179
#39 0x00007f46a3778685 in QQuickControl::mouseReleaseEvent (this=<optimized out>, event=0x7ffd6883b780) at qquickcontrol.cpp:2110
#40 0x00007f46b6b5a648 in QQuickItem::event (this=0x55a9c4fba080, ev=0x7ffd6883b780) at items/qquickitem.cpp:8096
#41 0x00007f46b9a7c65c in QApplicationPrivate::notify_helper (this=this@entry=0x55a9c1af5900, receiver=receiver@entry=0x55a9c4fba080, e=e@entry=0x7ffd6883b780) at kernel/qapplication.cpp:3736
#42 0x00007f46b9a83b90 in QApplication::notify (this=0x7ffd6883c6e0, receiver=0x55a9c4fba080, e=0x7ffd6883b780) at kernel/qapplication.cpp:3483
#43 0x00007f46b89f1d18 in QCoreApplication::notifyInternal2 (receiver=0x55a9c4fba080, event=0x7ffd6883b780) at kernel/qcoreapplication.cpp:1060
#44 0x00007f46b89f1eee in QCoreApplication::sendEvent (receiver=receiver@entry=0x55a9c4fba080, event=event@entry=0x7ffd6883b780) at kernel/qcoreapplication.cpp:1450
#45 0x00007f46b6b73f0d in QQuickWindowPrivate::deliverMouseEvent (this=this@entry=0x55a9c1c44370, pointerEvent=0x55a9c222e3b0) at items/qquickwindow.cpp:1786
#46 0x00007f46b6b750fb in QQuickWindowPrivate::deliverPointerEvent (this=this@entry=0x55a9c1c44370, event=0x55a9c222e3b0) at items/qquickwindow.cpp:2349
#47 0x00007f46b6b75d8e in QQuickWindowPrivate::handleMouseEvent (this=0x55a9c1c44370, event=0x7ffd6883b780) at items/qquickwindow.cpp:2212
#48 0x00007f46b9255655 in QWindow::event (this=this@entry=0x55a9c1ecc6a0, ev=ev@entry=0x7ffd6883b780) at kernel/qwindow.cpp:2341
#49 0x00007f46b6b77025 in QQuickWindow::event (this=0x55a9c1ecc6a0, e=0x7ffd6883b780) at items/qquickwindow.cpp:1675
#50 0x00007f46b9a7c65c in QApplicationPrivate::notify_helper (this=this@entry=0x55a9c1af5900, receiver=receiver@entry=0x55a9c1ecc6a0, e=e@entry=0x7ffd6883b780) at kernel/qapplication.cpp:3736
#51 0x00007f46b9a83b90 in QApplication::notify (this=0x7ffd6883c6e0, receiver=0x55a9c1ecc6a0, e=0x7ffd6883b780) at kernel/qapplication.cpp:3483
#52 0x00007f46b89f1d18 in QCoreApplication::notifyInternal2 (receiver=0x55a9c1ecc6a0, event=0x7ffd6883b780) at kernel/qcoreapplication.cpp:1060
#53 0x00007f46b89f1eee in QCoreApplication::sendEvent (receiver=<optimized out>, event=event@entry=0x7ffd6883b780) at kernel/qcoreapplication.cpp:1450
#54 0x00007f46b721cbdc in QQuickWidget::mouseReleaseEvent (this=<optimized out>, e=0x7ffd6883bdd0) at qquickwidget.cpp:1372
#55 0x00007f46b9abc9c8 in QWidget::event (this=this@entry=0x55a9c1f00300, event=event@entry=0x7ffd6883bdd0) at kernel/qwidget.cpp:9322
#56 0x00007f46b721cdbb in QQuickWidget::event (this=0x55a9c1f00300, e=0x7ffd6883bdd0) at qquickwidget.cpp:1525
#57 0x00007f46b9a7c65c in QApplicationPrivate::notify_helper (this=this@entry=0x55a9c1af5900, receiver=receiver@entry=0x55a9c1f00300, e=e@entry=0x7ffd6883bdd0) at kernel/qapplication.cpp:3736
#58 0x00007f46b9a84a58 in QApplication::notify (this=<optimized out>, receiver=0x55a9c1f00300, e=0x7ffd6883bdd0) at kernel/qapplication.cpp:3197
#59 0x00007f46b89f1d18 in QCoreApplication::notifyInternal2 (receiver=0x55a9c1f00300, event=0x7ffd6883bdd0) at kernel/qcoreapplication.cpp:1060
#60 0x00007f46b89f1efe in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55a9c1f00300, event=event@entry=0x7ffd6883bdd0) at kernel/qcoreapplication.cpp:1462
#61 0x00007f46b9a8305f in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x55a9c1f00300, event=event@entry=0x7ffd6883bdd0, alienWidget=0x55a9c1f00300, nativeWidget=0x55a9c1b58840, buttonDown=buttonDown@entry=0x7f46ba17f8d0 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2683
#62 0x00007f46b9ad78a1 in QWidgetWindow::handleMouseEvent (this=this@entry=0x55a9c1c20df0, event=event@entry=0x7ffd6883c260) at kernel/qwidgetwindow.cpp:662
#63 0x00007f46b9ada6fa in QWidgetWindow::event (this=0x55a9c1c20df0, event=0x7ffd6883c260) at kernel/qwidgetwindow.cpp:281
#64 0x00007f46b9a7c65c in QApplicationPrivate::notify_helper (this=this@entry=0x55a9c1af5900, receiver=receiver@entry=0x55a9c1c20df0, e=e@entry=0x7ffd6883c260) at kernel/qapplication.cpp:3736
#65 0x00007f46b9a83b90 in QApplication::notify (this=0x7ffd6883c6e0, receiver=0x55a9c1c20df0, e=0x7ffd6883c260) at kernel/qapplication.cpp:3483
#66 0x00007f46b89f1d18 in QCoreApplication::notifyInternal2 (receiver=0x55a9c1c20df0, event=0x7ffd6883c260) at kernel/qcoreapplication.cpp:1060
#67 0x00007f46b89f1efe in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55a9c1c20df0, event=event@entry=0x7ffd6883c260) at kernel/qcoreapplication.cpp:1462
#68 0x00007f46b924a1fb in QGuiApplicationPrivate::processMouseEvent (e=0x55a9c8047b30) at kernel/qguiapplication.cpp:2102
#69 0x00007f46b924b365 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x55a9c8047b30) at kernel/qguiapplication.cpp:1837
#70 0x00007f46b9223b4b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1151
#71 0x00007f46ac12c59a in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#72 0x00007f46b158e417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#73 0x00007f46b158e650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#74 0x00007f46b158e6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#75 0x00007f46b8a4edaf in QEventDispatcherGlib::processEvents (this=0x55a9c1b4b670, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#76 0x00007f46b89f003a in QEventLoop::exec (this=this@entry=0x7ffd6883c600, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#77 0x00007f46b89f9170 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1363
#78 0x000055a9c12a8218 in main (argc=<optimized out>, argv=<optimized out>) at ./app/main.cpp:71

Possible duplicates by query: bug 409778, bug 406341, bug 405023, bug 404388, bug 404056.

Reported using DrKonqi