Application: lancelot (1.9.5)
KDE Platform Version: 4.10.5
Qt Version: 4.8.4
Operating System: Linux 3.8.0-32-generic x86_64
Distribution: Ubuntu 13.04

-- Information about the crash:
I am clickingt on "Ubuntu one" after a search. Ubuntu one was the third chose. The first two flippng from first and second position

-- Backtrace:
Application: Lancelot (lancelot), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f6b01bc67c0 (LWP 5231))]

Thread 7 (Thread 0x7f6ae5bbc700 (LWP 5232)):
#0  0x00007fffb1148af7 in ?? ()
#1  0x00007f6af5ac9078 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x0000000200000000 in ?? ()
#3  0x00007f6ae0002860 in ?? ()
#4  0x00007f6ae5bbbb80 in ?? ()
#5  0x00007f6ae5bbbc38 in ?? ()
#6  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f6ae516a700 (LWP 5233)):
#0  0x00007f6afdf423cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f6af58181dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6af5818304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6afe6c7036 in QEventDispatcherGlib::processEvents (this=0x7f6ad80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f6afe69738f in QEventLoop::processEvents (this=this@entry=0x7f6ae5169d90, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f6afe697618 in QEventLoop::exec (this=this@entry=0x7f6ae5169d90, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f6afe599410 in QThread::exec (this=this@entry=0x23d5660) at thread/qthread.cpp:542
#7  0x00007f6afe678edf in QInotifyFileSystemWatcherEngine::run (this=0x23d5660) at io/qfilesystemwatcher_inotify.cpp:256
#8  0x00007f6afe59bbec in QThreadPrivate::start (arg=0x23d5660) at thread/qthread_unix.cpp:338
#9  0x00007f6af6128f8e in start_thread (arg=0x7f6ae516a700) at pthread_create.c:311
#10 0x00007f6afdf4ee1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7f6ac9adf700 (LWP 11199)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6afe59c14b in wait (time=18446744073709551615, this=0x2655d10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x25924f8, mutex=0x259dc80, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f6af934e041 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x25924d0, th=0x27163e0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f6af935094b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2598920, th=0x27163e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f6af934f63f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f6ac9adedc0, parent=0x25924d0, th=th@entry=0x27163e0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f6af934f6cb in ThreadWeaver::Thread::run (this=0x27163e0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f6afe59bbec in QThreadPrivate::start (arg=0x27163e0) at thread/qthread_unix.cpp:338
#8  0x00007f6af6128f8e in start_thread (arg=0x7f6ac9adf700) at pthread_create.c:311
#9  0x00007f6afdf4ee1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f6ac92de700 (LWP 11200)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6afe59c14b in wait (time=18446744073709551615, this=0x2655d10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x25924f8, mutex=0x259dc80, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f6af934e041 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x25924d0, th=0x2a29cd0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f6af935094b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2598920, th=0x2a29cd0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f6af9350964 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2598920, th=0x2a29cd0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f6af934f63f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f6ac92dddc0, parent=0x25924d0, th=th@entry=0x2a29cd0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f6af934f6cb in ThreadWeaver::Thread::run (this=0x2a29cd0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f6afe59bbec in QThreadPrivate::start (arg=0x2a29cd0) at thread/qthread_unix.cpp:338
#9  0x00007f6af6128f8e in start_thread (arg=0x7f6ac92de700) at pthread_create.c:311
#10 0x00007f6afdf4ee1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f6ac8add700 (LWP 11201)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6afe59c14b in wait (time=18446744073709551615, this=0x2655d10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x25924f8, mutex=0x259dc80, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f6af934e041 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x25924d0, th=0x27356a0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f6af935094b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2598920, th=0x27356a0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f6af9350964 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2598920, th=0x27356a0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f6af934f63f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f6ac8adcdc0, parent=0x25924d0, th=th@entry=0x27356a0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f6af934f6cb in ThreadWeaver::Thread::run (this=0x27356a0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f6afe59bbec in QThreadPrivate::start (arg=0x27356a0) at thread/qthread_unix.cpp:338
#9  0x00007f6af6128f8e in start_thread (arg=0x7f6ac8add700) at pthread_create.c:311
#10 0x00007f6afdf4ee1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f6ac82dc700 (LWP 11202)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6afe59c14b in wait (time=18446744073709551615, this=0x2655d10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x25924f8, mutex=0x259dc80, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f6af934e041 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x25924d0, th=0x27545b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f6af935094b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2598920, th=0x27545b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f6af934f63f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f6ac82dbdc0, parent=0x25924d0, th=th@entry=0x27545b0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f6af934f6cb in ThreadWeaver::Thread::run (this=0x27545b0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f6afe59bbec in QThreadPrivate::start (arg=0x27545b0) at thread/qthread_unix.cpp:338
#8  0x00007f6af6128f8e in start_thread (arg=0x7f6ac82dc700) at pthread_create.c:311
#9  0x00007f6afdf4ee1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f6b01bc67c0 (LWP 5231)):
[KCrash Handler]
#6  QReadWriteLock::~QReadWriteLock (this=0x25, __in_chrg=<optimized out>) at thread/qreadwritelock.cpp:137
#7  0x00007f6b011eb73d in ~QueryMatchPrivate (this=<optimized out>, __in_chrg=<optimized out>) at ../../plasma/querymatch.cpp:72
#8  ~QSharedDataPointer (this=<optimized out>, __in_chrg=<optimized out>) at /usr/include/qt4/QtCore/qshareddata.h:90
#9  Plasma::QueryMatch::~QueryMatch (this=0x25, __in_chrg=<optimized out>) at ../../plasma/querymatch.cpp:100
#10 0x00007f6b011fb2de in Plasma::RunnerManager::run (this=0x225c4a0, id=...) at ../../plasma/runnermanager.cpp:598
#11 0x00007f6b0099b6f3 in Lancelot::Models::Runner::activate (this=0x2536a80, index=<optimized out>) at ../../../libs/lancelot-datamodels/Runner.cpp:210
#12 0x00007f6b00c1600c in Lancelot::ActionListModel::activated (this=0x2536a80, index=index@entry=2) at ../../../libs/lancelot/models/ActionListModel.cpp:86
#13 0x00007f6b00bfe1bb in activate (index=2, this=0x22a5d90) at ../../../libs/lancelot/widgets/ActionListView.cpp:381
#14 Lancelot::ActionListViewItemFactory::activate (this=0x22a5d90, index=2) at ../../../libs/lancelot/widgets/ActionListView.cpp:376
#15 0x00007f6b00bfeeb9 in Lancelot::ActionListViewItemFactory::itemActivated (this=0x22a5d90) at ../../../libs/lancelot/widgets/ActionListView.cpp:373
#16 0x00007f6afe6ad0ef in QMetaObject::activate (sender=sender@entry=0x2b60e70, m=m@entry=0x7f6b00e2f300 <Lancelot::ExtenderButton::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#17 0x00007f6b00be59c0 in Lancelot::ExtenderButton::activated (this=this@entry=0x2b60e70) at moc_ExtenderButton.cpp:151
#18 0x00007f6b00bf1a5f in Lancelot::ExtenderButton::activate (this=0x2b60e70) at ../../../libs/lancelot/widgets/ExtenderButton.cpp:419
#19 0x00007f6afe6ad0ef in QMetaObject::activate (sender=0x2b60e70, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#20 0x00007f6aff3fcfb9 in QGraphicsItem::sceneEvent (this=0x2b60e80, event=0x7fffb1142ab0) at graphicsview/qgraphicsitem.cpp:6742
#21 0x00007f6aff427640 in sendMouseEvent (mouseEvent=0x7fffb1142ab0, this=0x221da30) at graphicsview/qgraphicsscene.cpp:1295
#22 QGraphicsScenePrivate::sendMouseEvent (this=0x221da30, mouseEvent=0x7fffb1142ab0) at graphicsview/qgraphicsscene.cpp:1274
#23 0x00007f6aff42fda5 in QGraphicsScene::mouseReleaseEvent (this=<optimized out>, mouseEvent=0x7fffb1142ab0) at graphicsview/qgraphicsscene.cpp:4128
#24 0x00007f6aff43b3ec in QGraphicsScene::event (this=0x221b9f0, event=0x7fffb1142ab0) at graphicsview/qgraphicsscene.cpp:3458
#25 0x00007f6afee3d8ec in QApplicationPrivate::notify_helper (this=this@entry=0x212fc40, receiver=receiver@entry=0x221b9f0, e=e@entry=0x7fffb1142ab0) at kernel/qapplication.cpp:4567
#26 0x00007f6afee4025b in QApplication::notify (this=this@entry=0x2103a30, receiver=receiver@entry=0x221b9f0, e=e@entry=0x7fffb1142ab0) at kernel/qapplication.cpp:4428
#27 0x00007f6b000091a6 in KApplication::notify (this=0x2103a30, receiver=0x221b9f0, event=0x7fffb1142ab0) at ../../kdeui/kernel/kapplication.cpp:311
#28 0x00007f6afe69863e in QCoreApplication::notifyInternal (this=0x2103a30, receiver=0x221b9f0, event=0x7fffb1142ab0, event@entry=0x7fffb1142a00) at kernel/qcoreapplication.cpp:946
#29 0x00007f6afee3c226 in sendSpontaneousEvent (event=event@entry=0x7fffb1142a00, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#30 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fffb1142ab0) at kernel/qapplication.cpp:5565
#31 0x00007f6aff452811 in QGraphicsView::mouseReleaseEvent (this=this@entry=0x21cbfe0, event=event@entry=0x7fffb1143430) at graphicsview/qgraphicsview.cpp:3338
#32 0x0000000000417f89 in LancelotWindow::mouseReleaseEvent (this=0x21cbfe0, e=0x7fffb1143430) at ../../../../applets/lancelot/application/LancelotWindow.cpp:712
#33 0x00007f6afee8aa89 in QWidget::event (this=this@entry=0x21cbfe0, event=event@entry=0x7fffb1143430) at kernel/qwidget.cpp:8375
#34 0x00007f6aff23d486 in QFrame::event (this=0x21cbfe0, e=0x7fffb1143430) at widgets/qframe.cpp:557
#35 0x00007f6aff45524b in QGraphicsView::viewportEvent (this=0x21cbfe0, event=0x7fffb1143430) at graphicsview/qgraphicsview.cpp:2866
#36 0x00007f6afe6987a6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x212fc40, receiver=receiver@entry=0x211a400, event=event@entry=0x7fffb1143430) at kernel/qcoreapplication.cpp:1056
#37 0x00007f6afee3d8bc in QApplicationPrivate::notify_helper (this=this@entry=0x212fc40, receiver=receiver@entry=0x211a400, e=e@entry=0x7fffb1143430) at kernel/qapplication.cpp:4563
#38 0x00007f6afee40a33 in QApplication::notify (this=this@entry=0x2103a30, receiver=receiver@entry=0x211a400, e=e@entry=0x7fffb1143430) at kernel/qapplication.cpp:4110
#39 0x00007f6b000091a6 in KApplication::notify (this=0x2103a30, receiver=0x211a400, event=0x7fffb1143430) at ../../kdeui/kernel/kapplication.cpp:311
#40 0x00007f6afe69863e in QCoreApplication::notifyInternal (this=0x2103a30, receiver=receiver@entry=0x211a400, event=event@entry=0x7fffb1143430) at kernel/qcoreapplication.cpp:946
#41 0x00007f6afee43933 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#42 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x211a400, event=event@entry=0x7fffb1143430, alienWidget=alienWidget@entry=0x211a400, nativeWidget=nativeWidget@entry=0x21cbfe0, buttonDown=buttonDown@entry=0x7f6aff91b308 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#43 0x00007f6afeeb8e54 in QETWidget::translateMouseEvent (this=this@entry=0x21cbfe0, event=event@entry=0x7fffb1143bb0) at kernel/qapplication_x11.cpp:4631
#44 0x00007f6afeeb7e81 in QApplication::x11ProcessEvent (this=0x2103a30, event=event@entry=0x7fffb1143bb0) at kernel/qapplication_x11.cpp:3746
#45 0x00007f6afeee3042 in x11EventSourceDispatch (s=0x212fa50, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#46 0x00007f6af5817f05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f6af5818248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f6af5818304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#49 0x00007f6afe6c7016 in QEventDispatcherGlib::processEvents (this=0x20c5ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#50 0x00007f6afeee313e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#51 0x00007f6afe69738f in QEventLoop::processEvents (this=this@entry=0x7fffb1143f80, flags=...) at kernel/qeventloop.cpp:149
#52 0x00007f6afe697618 in QEventLoop::exec (this=this@entry=0x7fffb1143f80, flags=...) at kernel/qeventloop.cpp:204
#53 0x00007f6afe69ccf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#54 0x00007f6afee3bffc in QApplication::exec () at kernel/qapplication.cpp:3828
#55 0x000000000040cde5 in LancelotApplication::main (argc=<optimized out>, argv=<optimized out>) at ../../../../applets/lancelot/application/LancelotApplication.cpp:113
#56 0x00007f6afde76ea5 in __libc_start_main (main=0x40cc90 <main(int, char**)>, argc=1, ubp_av=0x7fffb11440f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb11440e8) at libc-start.c:260
#57 0x000000000040ce19 in _start ()

Possible duplicates by query: bug 324833, bug 324369, bug 320173, bug 314293, bug 314159.

Reported using DrKonqi