Bug 312070

Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.4
Qt Version: 4.8.2
Operating System: Linux 3.2.0-35-generic-pae i686
Distribution: Ubuntu 12.04.1 LTS

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

I tried to change the wallpaper, got a crash first time, and later.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1afa740 (LWP 29276))]

Thread 5 (Thread 0xaf2a9b40 (LWP 29277)):
#0  0xb77c6424 in __kernel_vsyscall ()
#1  0xb28fd96b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb768864c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb3943029 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb394306f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb28f9d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb767ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0xae301b40 (LWP 29278)):
#0  0xb28fcc64 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb76888a4 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2831410 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb27f1865 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb27f1faf in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb27f2201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb6115db7 in QEventDispatcherGlib::processEvents (this=0xada00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb60e167d in QEventLoop::processEvents (this=0xae301240, flags=...) at kernel/qeventloop.cpp:149
#8  0xb60e1919 in QEventLoop::exec (this=0xae301240, flags=...) at kernel/qeventloop.cpp:204
#9  0xb5fca9ec in QThread::exec (this=0x8f169d0) at thread/qthread.cpp:501
#10 0xb60beccd in QInotifyFileSystemWatcherEngine::run (this=0x8f169d0) at io/qfilesystemwatcher_inotify.cpp:248
#11 0xb5fcde80 in QThreadPrivate::start (arg=0x8f169d0) at thread/qthread_unix.cpp:307
#12 0xb28f9d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#13 0xb767ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xa8885b40 (LWP 29279)):
#0  0xb28fbda9 in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb7688864 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb28313d0 in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb27f1f85 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb27f2201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb6115db7 in QEventDispatcherGlib::processEvents (this=0xa7f00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb60e167d in QEventLoop::processEvents (this=0xa8885240, flags=...) at kernel/qeventloop.cpp:149
#7  0xb60e1919 in QEventLoop::exec (this=0xa8885240, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5fca9ec in QThread::exec (this=0x8ca7688) at thread/qthread.cpp:501
#9  0xb60beccd in QInotifyFileSystemWatcherEngine::run (this=0x8ca7688) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb5fcde80 in QThreadPrivate::start (arg=0x8ca7688) at thread/qthread_unix.cpp:307
#11 0xb28f9d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb767ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xa50ffb40 (LWP 29283)):
#0  0xb27f1ffe in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb27f256b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xa5bb81ba in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#3  0xb28156b3 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb28f9d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#5  0xb767ad3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb1afa740 (LWP 29276)):
[KCrash Handler]
#7  0xb623fdd8 in QObject::staticMetaObject () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#8  0xb2a654e9 in Attica::ProviderManager::ProviderManager(QFlags<Attica::ProviderManager::ProviderFlag> const&) () from /usr/lib/libattica.so.0.4
#9  0xb6a282f8 in KNS3::AtticaProvider::AtticaProvider (this=0xaab1a88, categories=...) at ../../../knewstuff/knewstuff3/attica/atticaprovider.cpp:40
#10 0xb69fe1f1 in KNS3::Engine::slotProviderFileLoaded (this=0xaa8a890, doc=...) at ../../../knewstuff/knewstuff3/core/engine.cpp:209
#11 0xb6a0141f in qt_static_metacall (_a=0xbfa86ef8, _id=16, _o=0xaa8a890, _c=<optimized out>) at ./engine.moc:125
#12 KNS3::Engine::qt_static_metacall (_o=0xaa8a890, _c=QMetaObject::InvokeMetaMethod, _id=16, _a=0xbfa86ef8) at ./engine.moc:103
#13 0xb60f9b81 in QMetaObject::activate (sender=0x8cab368, m=0xb6a4e5d8, local_signal_index=0, argv=0xbfa86ef8) at kernel/qobject.cpp:3547
#14 0xb6a13f15 in KNS3::XmlLoader::signalLoaded (this=0x8cab368, _t1=...) at ./xmlloader.moc:111
#15 0xb6a13fd5 in KNS3::XmlLoader::slotJobResult (this=0x8cab368, job=0xaae92e0) at ../../../knewstuff/knewstuff3/core/xmlloader.cpp:77
#16 0xb60f9b81 in QMetaObject::activate (sender=0xaae92e0, m=0xb658d48c, local_signal_index=3, argv=0xbfa87018) at kernel/qobject.cpp:3547
#17 0xb63d9b95 in KJob::result (this=0xaae92e0, _t1=0xaae92e0) at ./kjob.moc:208
#18 0xb63d9be8 in KJob::emitResult (this=0xaae92e0) at ../../kdecore/jobs/kjob.cpp:318
#19 0xb70ad128 in KIO::SimpleJob::slotFinished (this=0xaae92e0) at ../../kio/kio/job.cpp:494
#20 0xb70b623d in KIO::TransferJob::slotFinished (this=0xaae92e0) at ../../kio/kio/job.cpp:1081
#21 0xb70b47f8 in qt_static_metacall (_a=0xbfa87290, _id=7, _o=0xaae92e0, _c=<optimized out>) at ./jobclasses.moc:388
#22 KIO::TransferJob::qt_static_metacall (_o=0xaae92e0, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbfa87290) at ./jobclasses.moc:375
#23 0xb60f9b81 in QMetaObject::activate (sender=0xaaf0478, m=0xb7290480, local_signal_index=4, argv=0x0) at kernel/qobject.cpp:3547
#24 0xb716bdc5 in KIO::SlaveInterface::finished (this=0xaaf0478) at ./slaveinterface.moc:185
#25 0xb716ef51 in KIO::SlaveInterface::dispatch (this=0xaaf0478, _cmd=104, rawdata=...) at ../../kio/kio/slaveinterface.cpp:172
#26 0xb716b3da in KIO::SlaveInterface::dispatch (this=0xaaf0478) at ../../kio/kio/slaveinterface.cpp:88
#27 0xb715ca78 in KIO::Slave::gotInput (this=0xaaf0478) at ../../kio/kio/slave.cpp:344
#28 0xb715d0e0 in KIO::Slave::qt_static_metacall (_o=0xaaf0478, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbfa87550) at ./slave.moc:57
#29 0xb60f9b81 in QMetaObject::activate (sender=0xaaeb088, m=0xb728d110, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3547
#30 0xb7077b45 in KIO::Connection::readyRead (this=0xaaeb088) at ./connection.moc:106
#31 0xb70783ba in dequeue (this=<optimized out>) at ../../kio/kio/connection.cpp:82
#32 KIO::ConnectionPrivate::dequeue (this=0xaae73d0) at ../../kio/kio/connection.cpp:71
#33 0xb60f50d1 in QMetaCallEvent::placeMetaCall (this=0xab1e9b8, object=0xaaeb088) at kernel/qobject.cpp:525
#34 0xb60fe14b in QObject::event (this=0xaaeb088, e=0xab1e9b8) at kernel/qobject.cpp:1195
#35 0xb55ccdf4 in notify_helper (e=0xab1e9b8, receiver=0xaaeb088, this=0x8c551c8) at kernel/qapplication.cpp:4556
#36 QApplicationPrivate::notify_helper (this=0x8c551c8, receiver=0xaaeb088, e=0xab1e9b8) at kernel/qapplication.cpp:4528
#37 0xb55d215d in QApplication::notify (this=0xab1e9b8, receiver=0xaaeb088, e=0xab1e9b8) at kernel/qapplication.cpp:4285
#38 0xb6782571 in KApplication::notify (this=0x8c456b0, receiver=0xaaeb088, event=0xab1e9b8) at ../../kdeui/kernel/kapplication.cpp:311
#39 0xb60e2dde in QCoreApplication::notifyInternal (this=0x8c456b0, receiver=0xaaeb088, event=0xab1e9b8) at kernel/qcoreapplication.cpp:915
#40 0xb60e6f38 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#41 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8c08130) at kernel/qcoreapplication.cpp:1539
#42 0xb60e726c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1432
#43 0xb6115964 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#44 postEventSourceDispatch (s=0x8c56520) at kernel/qeventdispatcher_glib.cpp:279
#45 0xb27f1d86 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#46 0xb27f2125 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#47 0xb27f2201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#48 0xb6115d57 in QEventDispatcherGlib::processEvents (this=0x8c08ea0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#49 0xb5685a1a in QGuiEventDispatcherGlib::processEvents (this=0x8c08ea0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#50 0xb60e167d in QEventLoop::processEvents (this=0xbfa87d34, flags=...) at kernel/qeventloop.cpp:149
#51 0xb60e1919 in QEventLoop::exec (this=0xbfa87d34, flags=...) at kernel/qeventloop.cpp:204
#52 0xb60e731a in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#53 0xb55ca9c4 in QApplication::exec () at kernel/qapplication.cpp:3817
#54 0xb7782fab in kdemain (argc=1, argv=0xbfa87f34) at ../../../../plasma/desktop/shell/main.cpp:120
#55 0x0804850b in main (argc=1, argv=0xbfa87f34) at plasma-desktop_dummy.cpp:3

Reported using DrKonqi