Bug 321978

Application: plasma-desktop (4.10.4)
KDE Platform Version: 4.10.4
Qt Version: 4.8.4
Operating System: Linux 3.8.0-25-generic x86_64
Distribution: Ubuntu 13.04

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

Starting up system I get an error message stating that the Plasma desktop has crashed.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f873a19d7c0 (LWP 1929))]

Thread 4 (Thread 0x7f871a568700 (LWP 1930)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8732ec7e77 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f8732ec7ea9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f872d5c2f8e in start_thread (arg=0x7f871a568700) at pthread_create.c:311
#4  0x00007f8739a84e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f8707fff700 (LWP 1933)):
#0  0x00007f872d5c607f in __pthread_mutex_unlock_usercnt (mutex=0x7f8700000a60, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  0x00007f872ceff5f1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f872cebf366 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f872cec00b4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f872cec0304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8736664036 in QEventDispatcherGlib::processEvents (this=0x7f87000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f873663438f in QEventLoop::processEvents (this=this@entry=0x7f8707ffed90, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f8736634618 in QEventLoop::exec (this=this@entry=0x7f8707ffed90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f8736536410 in QThread::exec (this=this@entry=0x2727760) at thread/qthread.cpp:542
#9  0x00007f8736615edf in QInotifyFileSystemWatcherEngine::run (this=0x2727760) at io/qfilesystemwatcher_inotify.cpp:256
#10 0x00007f8736538bec in QThreadPrivate::start (arg=0x2727760) at thread/qthread_unix.cpp:338
#11 0x00007f872d5c2f8e in start_thread (arg=0x7f8707fff700) at pthread_create.c:311
#12 0x00007f8739a84e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f8707370700 (LWP 1934)):
#0  0x00007f872d5c608b in __pthread_mutex_unlock_usercnt (mutex=0x7f86f8000a60, decr=1) at pthread_mutex_unlock.c:58
#1  0x00007f872ceff5f1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f872cebf8f3 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f872cec00fe in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f872cec0304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8736664036 in QEventDispatcherGlib::processEvents (this=0x7f86f80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f873663438f in QEventLoop::processEvents (this=this@entry=0x7f870736fd90, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f8736634618 in QEventLoop::exec (this=this@entry=0x7f870736fd90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f8736536410 in QThread::exec (this=this@entry=0x27f3530) at thread/qthread.cpp:542
#9  0x00007f8736615edf in QInotifyFileSystemWatcherEngine::run (this=0x27f3530) at io/qfilesystemwatcher_inotify.cpp:256
#10 0x00007f8736538bec in QThreadPrivate::start (arg=0x27f3530) at thread/qthread_unix.cpp:338
#11 0x00007f872d5c2f8e in start_thread (arg=0x7f8707370700) at pthread_create.c:311
#12 0x00007f8739a84e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f873a19d7c0 (LWP 1929)):
[KCrash Handler]
#6  QDeclarativeTypeData::resolveTypes (this=0x2fc3ea0) at qml/qdeclarativetypeloader.cpp:1132
#7  0x00007f87382e9535 in QDeclarativeTypeData::allDependenciesDone (this=0x2fc3ea0) at qml/qdeclarativetypeloader.cpp:1003
#8  0x00007f87382e544a in QDeclarativeDataLoader::setData (this=<optimized out>, blob=0x2fc3ea0, data=...) at qml/qdeclarativetypeloader.cpp:642
#9  0x00007f87382e75bc in QDeclarativeDataLoader::load (this=this@entry=0x2fbc8b8, blob=blob@entry=0x2fc3ea0) at qml/qdeclarativetypeloader.cpp:546
#10 0x00007f87382e821f in QDeclarativeTypeLoader::get (this=0x2fbc8b8, url=...) at qml/qdeclarativetypeloader.cpp:694
#11 0x00007f87382a8151 in QDeclarativeComponent::loadUrl (this=0x2fbf330, url=...) at qml/qdeclarativecomponent.cpp:536
#12 0x00007f873964deb2 in Plasma::DeclarativeWidgetPrivate::execute (this=0x2fbbf70, fileName=...) at ../../plasma/widgets/declarativewidget.cpp:108
#13 0x00007f873964df8b in Plasma::DeclarativeWidget::setQmlPath (this=<optimized out>, path=...) at ../../plasma/widgets/declarativewidget.cpp:278
#14 0x00007f871dd6b9af in DeclarativeAppletScript::init (this=0x26440f0) at ../../../../plasma/scriptengines/javascript/plasmoid/declarativeappletscript.cpp:103
#15 0x00007f873957cecf in Plasma::Applet::init (this=0x1eec450) at ../../plasma/applet.cpp:249
#16 0x00007f871c7e6b13 in SystemTray::PlasmoidTask::createWidget (this=0x26ecba0, host=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtask.cpp:100
#17 0x00007f871c7de43a in SystemTray::Task::widget (this=this@entry=0x26ecba0, host=host@entry=0x1f2b590, createIfNecessary=createIfNecessary@entry=true) at ../../../../../plasma/generic/applets/systemtray/core/task.cpp:76
#18 0x00007f871c7f1410 in SystemTray::Applet::_onAddedTask (this=this@entry=0x1f2b590, task=0x26ecba0) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:196
#19 0x00007f871c7f178b in SystemTray::Applet::_onWidgetCreationFinished (this=0x1f2b590) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:278
#20 0x00007f871c7f18a5 in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at ./applet.moc:144
#21 SystemTray::Applet::qt_static_metacall (_o=0x1, _c=QMetaObject::InvokeMetaMethod, _id=49, _a=0x7fff2589cf40) at ./applet.moc:126
#22 0x00007f873664a0ef in QMetaObject::activate (sender=0x222b100, m=m@entry=0x7f873997cde0 <Plasma::DeclarativeWidget::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#23 0x00007f873964cfd0 in Plasma::DeclarativeWidget::finished (this=<optimized out>) at ./declarativewidget.moc:157
#24 0x00007f873964d777 in Plasma::DeclarativeWidgetPrivate::finishExecute (this=0x22306a0) at ../../plasma/widgets/declarativewidget.cpp:216
#25 0x00007f873664f5be in QObject::event (this=this@entry=0x222b100, e=e@entry=0x2200930) at kernel/qobject.cpp:1194
#26 0x00007f8735ff7b6b in QGraphicsWidget::event (this=0x222b100, event=0x2200930) at graphicsview/qgraphicswidget.cpp:1461
#27 0x00007f87359db8ec in QApplicationPrivate::notify_helper (this=this@entry=0x1bfab90, receiver=receiver@entry=0x222b100, e=e@entry=0x2200930) at kernel/qapplication.cpp:4567
#28 0x00007f87359de25b in QApplication::notify (this=this@entry=0x1bdc090, receiver=receiver@entry=0x222b100, e=e@entry=0x2200930) at kernel/qapplication.cpp:4428
#29 0x00007f87372f9af6 in KApplication::notify (this=0x1bdc090, receiver=0x222b100, event=0x2200930) at ../../kdeui/kernel/kapplication.cpp:311
#30 0x00007f873663563e in QCoreApplication::notifyInternal (this=0x1bdc090, receiver=receiver@entry=0x222b100, event=event@entry=0x2200930) at kernel/qcoreapplication.cpp:946
#31 0x00007f8736639171 in sendEvent (event=0x2200930, receiver=0x222b100) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1b6d1f0) at kernel/qcoreapplication.cpp:1570
#33 0x00007f87366394a3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#34 0x00007f8736663e83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#35 postEventSourceDispatch (s=0x1bf3f10) at kernel/qeventdispatcher_glib.cpp:279
#36 0x00007f872cebff05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f872cec0248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f872cec0304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007f8736664016 in QEventDispatcherGlib::processEvents (this=0x1b6ead0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#40 0x00007f8735a8113e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#41 0x00007f873663438f in QEventLoop::processEvents (this=this@entry=0x7fff2589da40, flags=...) at kernel/qeventloop.cpp:149
#42 0x00007f8736634618 in QEventLoop::exec (this=this@entry=0x7fff2589da40, flags=...) at kernel/qeventloop.cpp:204
#43 0x00007f8736639cf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#44 0x00007f87359d9ffc in QApplication::exec () at kernel/qapplication.cpp:3828
#45 0x00007f8739d9046b in kdemain (argc=1, argv=0x7fff2589dd38) at ../../../../plasma/desktop/shell/main.cpp:126
#46 0x00007f87399acea5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fff2589dd38, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff2589dd28) at libc-start.c:260
#47 0x0000000000400711 in _start ()

Reported using DrKonqi