Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: I clicked on a music file, banshee started automatically, system hung for a second and it blackened and the screen came up again. no icons were being displayed in the menu bar, tried getting them back by clicking on default panel, and then teh system crashed.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f365709f7a0 (LWP 1977))]

Thread 7 (Thread 0x7f3634a66700 (LWP 1978)):
#0  0x00007f3656981773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f364af0cf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f364af0d429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3653b73f3e in QEventDispatcherGlib::processEvents (this=0x133d6c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f3653b47cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f3653b47ef7 in QEventLoop::exec (this=0x7f3634a65db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f3653a5f27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f3653b2acbf in QInotifyFileSystemWatcherEngine::run (this=0x1332a20) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f3653a61d05 in QThreadPrivate::start (arg=0x1332a20) at thread/qthread_unix.cpp:331
#9  0x00007f364ba19efc in start_thread (arg=0x7f3634a66700) at pthread_create.c:304
#10 0x00007f365698d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f362ba01700 (LWP 2540)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f3653a621ab in wait (time=18446744073709551615, this=0x1390a30) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x138f240, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f364f85c864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1417c30, th=0x1c47690) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f364f85ee0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x138f890, th=0x1c47690) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f364f85dccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f362ba00e00, parent=0x1417c30, th=0x1c47690) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f364f85dd5b in ThreadWeaver::Thread::run (this=0x1c47690) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f3653a61d05 in QThreadPrivate::start (arg=0x1c47690) at thread/qthread_unix.cpp:331
#8  0x00007f364ba19efc in start_thread (arg=0x7f362ba01700) at pthread_create.c:304
#9  0x00007f365698d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f362c82f700 (LWP 2541)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f3653a621ab in wait (time=18446744073709551615, this=0x1390a30) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x138f240, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f364f85c864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1417c30, th=0x7f3630002ee0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f364f85ee0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x138f890, th=0x7f3630002ee0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f364f85ee24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x138f890, th=0x7f3630002ee0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f364f85ee24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x138f890, th=0x7f3630002ee0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f364f85ee24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x138f890, th=0x7f3630002ee0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007f364f85dccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f362c82ee00, parent=0x1417c30, th=0x7f3630002ee0) at ../../../threadweaver/Weaver/Thread.cpp:87
#9  0x00007f364f85dd5b in ThreadWeaver::Thread::run (this=0x7f3630002ee0) at ../../../threadweaver/Weaver/Thread.cpp:142
#10 0x00007f3653a61d05 in QThreadPrivate::start (arg=0x7f3630002ee0) at thread/qthread_unix.cpp:331
#11 0x00007f364ba19efc in start_thread (arg=0x7f362c82f700) at pthread_create.c:304
#12 0x00007f365698d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f3628980700 (LWP 2542)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f3653a621ab in wait (time=18446744073709551615, this=0x1390a30) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x138f240, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f364f85c864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1417c30, th=0x1b33f70) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f364f85ee0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x138f890, th=0x1b33f70) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f364f85dccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f362897fe00, parent=0x1417c30, th=0x1b33f70) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f364f85dd5b in ThreadWeaver::Thread::run (this=0x1b33f70) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f3653a61d05 in QThreadPrivate::start (arg=0x1b33f70) at thread/qthread_unix.cpp:331
#8  0x00007f364ba19efc in start_thread (arg=0x7f3628980700) at pthread_create.c:304
#9  0x00007f365698d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f362817f700 (LWP 2543)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f3653a621ab in wait (time=18446744073709551615, this=0x1390a30) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x138f240, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f364f85c864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1417c30, th=0xb72ce0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f364f85ee0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x138f890, th=0xb72ce0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f364f85dccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f362817ee00, parent=0x1417c30, th=0xb72ce0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f364f85dd5b in ThreadWeaver::Thread::run (this=0xb72ce0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f3653a61d05 in QThreadPrivate::start (arg=0xb72ce0) at thread/qthread_unix.cpp:331
#8  0x00007f364ba19efc in start_thread (arg=0x7f362817f700) at pthread_create.c:304
#9  0x00007f365698d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f362730a700 (LWP 4857)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f3650b78fe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f3650b79019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f364ba19efc in start_thread (arg=0x7f362730a700) at pthread_create.c:304
#4  0x00007f365698d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f365709f7a0 (LWP 1977)):
[KCrash Handler]
#6  QGraphicsLayoutItemPrivate::hasHeightForWidth (this=0x740065006e002e) at graphicsview/qgraphicslayoutitem.cpp:280
#7  0x00007f3653520591 in QGridLayoutItem::hasDynamicConstraint (this=<optimized out>) at graphicsview/qgridlayoutengine.cpp:576
#8  0x00007f36535216b2 in ensureDynamicConstraint (this=0x1e94490) at graphicsview/qgridlayoutengine.cpp:1657
#9  QGridLayoutEngine::ensureDynamicConstraint (this=0x1e94490) at graphicsview/qgridlayoutengine.cpp:1652
#10 0x00007f3653521769 in QGridLayoutEngine::hasDynamicConstraint (this=0x1e94490) at graphicsview/qgridlayoutengine.cpp:1677
#11 0x00007f3653525a98 in QGridLayoutEngine::sizeHint (this=0x1e94490, styleInfo=..., which=Qt::MaximumSize, constraint=...) at graphicsview/qgridlayoutengine.cpp:1134
#12 0x00007f36534af01a in QGraphicsGridLayout::sizeHint (this=<optimized out>, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicsgridlayout.cpp:656
#13 0x00007f36534d9bd9 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x1e94380, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:169
#14 0x00007f36534da491 in effectiveSizeHint (constraint=<optimized out>, which=<optimized out>, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:818
#15 QGraphicsLayoutItem::effectiveSizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:810
#16 0x00007f3653517231 in QGraphicsWidget::sizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicswidget.cpp:743
#17 0x00007f36534d9caf in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x1e94290, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:175
#18 0x00007f36534da491 in effectiveSizeHint (constraint=<optimized out>, which=<optimized out>, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:818
#19 QGraphicsLayoutItem::effectiveSizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:810
#20 0x00007f363c080905 in SystemTray::TaskArea::adjustHiddentTasksWidget (this=0x1ea2dd0) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:452
#21 0x00007f363c0825d9 in SystemTray::TaskArea::addWidgetForTask (this=0x1ea2dd0, task=0x1ff4f00) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:320
#22 0x00007f363c082926 in SystemTray::TaskArea::addTask (this=0x1ea2dd0, task=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#23 0x00007f363c083124 in SystemTray::TaskArea::qt_metacall (this=0x1ea2dd0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff4040bd30) at ./taskarea.moc:89
#24 0x00007f3653b5beba in QMetaObject::activate (sender=0xde9830, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff4040bd30) at kernel/qobject.cpp:3278
#25 0x00007f363c06587f in SystemTray::Manager::taskAdded (this=<optimized out>, _t1=0x1ff4f00) at ./manager.moc:99
#26 0x00007f363c065a95 in SystemTray::Manager::addTask (this=0xde9830, task=0x1ff4f00) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:87
#27 0x00007f363c065be4 in SystemTray::Manager::qt_metacall (this=0xde9830, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff4040bea0) at ./manager.moc:86
#28 0x00007f3653b5beba in QMetaObject::activate (sender=0xde9470, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff4040bea0) at kernel/qobject.cpp:3278
#29 0x00007f363c06608f in SystemTray::Protocol::taskCreated (this=<optimized out>, _t1=0x1ff4f00) at ./protocol.moc:91
#30 0x00007f363c06d178 in SystemTray::PlasmoidProtocol::addApplet (this=0xde9470, appletName=..., id=<optimized out>, parent=0x1e5fe10) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:112
#31 0x00007f363c0656d6 in SystemTray::Manager::addApplet (this=<optimized out>, appletName=<optimized out>, parent=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:110
#32 0x00007f363c077a30 in SystemTray::Applet::checkDefaultApplets (this=0x1e5fe10) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:737
#33 0x00007f363c078a4c in SystemTray::Applet::qt_metacall (this=0x1e5fe10, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x1e1c230) at ./applet.moc:91
#34 0x00007f3653b5fa5e in QObject::event (this=0x1e5fe10, e=<optimized out>) at kernel/qobject.cpp:1217
#35 0x00007f365351789b in QGraphicsWidget::event (this=0x1e5fe10, event=0x1e1a150) at graphicsview/qgraphicswidget.cpp:1455
#36 0x00007f3652ef9424 in notify_helper (e=0x1e1a150, receiver=0x1e5fe10, this=0xac3390) at kernel/qapplication.cpp:4486
#37 QApplicationPrivate::notify_helper (this=0xac3390, receiver=0x1e5fe10, e=0x1e1a150) at kernel/qapplication.cpp:4458
#38 0x00007f3652efe291 in QApplication::notify (this=0xab5a70, receiver=0x1e5fe10, e=0x1e1a150) at kernel/qapplication.cpp:4365
#39 0x00007f36547f7126 in KApplication::notify (this=0xab5a70, receiver=0x1e5fe10, event=0x1e1a150) at ../../kdeui/kernel/kapplication.cpp:311
#40 0x00007f3653b48afc in QCoreApplication::notifyInternal (this=0xab5a70, receiver=0x1e5fe10, event=0x1e1a150) at kernel/qcoreapplication.cpp:787
#41 0x00007f3653b4c51f in sendEvent (event=0x1e1a150, receiver=0x1e5fe10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#42 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xa55430) at kernel/qcoreapplication.cpp:1428
#43 0x00007f3653b73a73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#44 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#45 0x00007f364af0ca5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f364af0d258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f364af0d429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f3653b73ed6 in QEventDispatcherGlib::processEvents (this=0xa56f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#49 0x00007f3652fa107e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007f3653b47cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007f3653b47ef7 in QEventLoop::exec (this=0x7fff4040c900, flags=...) at kernel/qeventloop.cpp:201
#52 0x00007f3653b4c789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#53 0x00007f3656c8c1a3 in kdemain (argc=1, argv=0x7fff4040cce8) at ../../../../plasma/desktop/shell/main.cpp:120
#54 0x00007f36568cd30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff4040cce8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4040ccd8) at libc-start.c:226
#55 0x0000000000400671 in _start ()

Possible duplicates by query: bug 286919, bug 286852, bug 286802, bug 286242, bug 286197.

Reported using DrKonqi