Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: I clicked to bring up the default panel

The default panel came back ok and seems ok at the present time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fbb725b37a0 (LWP 1516))]

Thread 5 (Thread 0x7fbb508d4700 (LWP 1517)):
#0  0x00007fbb66f231fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x21bc348) at pthread_mutex_unlock.c:290
#2  0x00007fbb66411fe4 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbb66412dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbb66413429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbb6f079f3e in QEventDispatcherGlib::processEvents (this=0x21bb860, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007fbb6f04dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fbb6f04def7 in QEventLoop::exec (this=0x7fbb508d3db0, flags=...) at kernel/qeventloop.cpp:201
#8  0x00007fbb6ef6527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#9  0x00007fbb6f030cbf in QInotifyFileSystemWatcherEngine::run (this=0x21b9ff0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fbb6ef67d05 in QThreadPrivate::start (arg=0x21b9ff0) at thread/qthread_unix.cpp:331
#11 0x00007fbb66f1fefc in start_thread (arg=0x7fbb508d4700) at pthread_create.c:304
#12 0x00007fbb71e9489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fbb46421700 (LWP 1520)):
#0  0x00007fbb71e88773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fbb66412f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbb66413792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbb46eff516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fbb664382b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbb66f1fefc in start_thread (arg=0x7fbb46421700) at pthread_create.c:304
#6  0x00007fbb71e9489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fbb400a7700 (LWP 1588)):
#0  0x00007fbb66f231fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x7fbb4c01a7a8) at pthread_mutex_unlock.c:290
#2  0x00007fbb66413013 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbb66413429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbb6f079f3e in QEventDispatcherGlib::processEvents (this=0x7fbb4c00b3b0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fbb6f04dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fbb6f04def7 in QEventLoop::exec (this=0x7fbb400a6db0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007fbb6ef6527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007fbb6f030cbf in QInotifyFileSystemWatcherEngine::run (this=0x21b6fe0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fbb6ef67d05 in QThreadPrivate::start (arg=0x21b6fe0) at thread/qthread_unix.cpp:331
#10 0x00007fbb66f1fefc in start_thread (arg=0x7fbb400a7700) at pthread_create.c:304
#11 0x00007fbb71e9489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fbb46c22700 (LWP 3468)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbb6c07efe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fbb6c07f019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fbb66f1fefc in start_thread (arg=0x7fbb46c22700) at pthread_create.c:304
#4  0x00007fbb71e9489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fbb725b37a0 (LWP 1516)):
[KCrash Handler]
#6  QGraphicsLayoutItemPrivate::hasHeightForWidth (this=0x65006e002f0065) at graphicsview/qgraphicslayoutitem.cpp:280
#7  0x00007fbb6ea26591 in QGridLayoutItem::hasDynamicConstraint (this=<optimized out>) at graphicsview/qgridlayoutengine.cpp:576
#8  0x00007fbb6ea276b2 in ensureDynamicConstraint (this=0x4834110) at graphicsview/qgridlayoutengine.cpp:1657
#9  QGridLayoutEngine::ensureDynamicConstraint (this=0x4834110) at graphicsview/qgridlayoutengine.cpp:1652
#10 0x00007fbb6ea27769 in QGridLayoutEngine::hasDynamicConstraint (this=0x4834110) at graphicsview/qgridlayoutengine.cpp:1677
#11 0x00007fbb6ea2ba98 in QGridLayoutEngine::sizeHint (this=0x4834110, styleInfo=..., which=Qt::MaximumSize, constraint=...) at graphicsview/qgridlayoutengine.cpp:1134
#12 0x00007fbb6e9b501a in QGraphicsGridLayout::sizeHint (this=<optimized out>, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicsgridlayout.cpp:656
#13 0x00007fbb6e9dfbd9 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x4834000, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:169
#14 0x00007fbb6e9e0491 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 0x00007fbb6ea1d231 in QGraphicsWidget::sizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicswidget.cpp:743
#17 0x00007fbb6e9dfcaf in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x4833f10, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:175
#18 0x00007fbb6e9e0491 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 0x00007fbb57d96905 in SystemTray::TaskArea::adjustHiddentTasksWidget (this=0x4739320) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:452
#21 0x00007fbb57d985d9 in SystemTray::TaskArea::addWidgetForTask (this=0x4739320, task=0x54fd770) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:320
#22 0x00007fbb57d98926 in SystemTray::TaskArea::addTask (this=0x4739320, task=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#23 0x00007fbb57d99124 in SystemTray::TaskArea::qt_metacall (this=0x4739320, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff154afeb0) at ./taskarea.moc:89
#24 0x00007fbb6f061eba in QMetaObject::activate (sender=0x1d99f20, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff154afeb0) at kernel/qobject.cpp:3278
#25 0x00007fbb57d7b87f in SystemTray::Manager::taskAdded (this=<optimized out>, _t1=0x54fd770) at ./manager.moc:99
#26 0x00007fbb57d7ba95 in SystemTray::Manager::addTask (this=0x1d99f20, task=0x54fd770) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:87
#27 0x00007fbb57d7bbe4 in SystemTray::Manager::qt_metacall (this=0x1d99f20, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff154b0020) at ./manager.moc:86
#28 0x00007fbb6f061eba in QMetaObject::activate (sender=0x1d99a20, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff154b0020) at kernel/qobject.cpp:3278
#29 0x00007fbb57d7c08f in SystemTray::Protocol::taskCreated (this=<optimized out>, _t1=0x54fd770) at ./protocol.moc:91
#30 0x00007fbb57d83178 in SystemTray::PlasmoidProtocol::addApplet (this=0x1d99a20, appletName=..., id=<optimized out>, parent=0x4827b50) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:112
#31 0x00007fbb57d7b6d6 in SystemTray::Manager::addApplet (this=<optimized out>, appletName=<optimized out>, parent=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:110
#32 0x00007fbb57d8da30 in SystemTray::Applet::checkDefaultApplets (this=0x4827b50) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:737
#33 0x00007fbb57d8ea4c in SystemTray::Applet::qt_metacall (this=0x4827b50, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x4750e00) at ./applet.moc:91
#34 0x00007fbb6f065a5e in QObject::event (this=0x4827b50, e=<optimized out>) at kernel/qobject.cpp:1217
#35 0x00007fbb6ea1d89b in QGraphicsWidget::event (this=0x4827b50, event=0x48302b0) at graphicsview/qgraphicswidget.cpp:1455
#36 0x00007fbb6e3ff424 in notify_helper (e=0x48302b0, receiver=0x4827b50, this=0x1a08360) at kernel/qapplication.cpp:4486
#37 QApplicationPrivate::notify_helper (this=0x1a08360, receiver=0x4827b50, e=0x48302b0) at kernel/qapplication.cpp:4458
#38 0x00007fbb6e404291 in QApplication::notify (this=0x19fce40, receiver=0x4827b50, e=0x48302b0) at kernel/qapplication.cpp:4365
#39 0x00007fbb6fcfd126 in KApplication::notify (this=0x19fce40, receiver=0x4827b50, event=0x48302b0) at ../../kdeui/kernel/kapplication.cpp:311
#40 0x00007fbb6f04eafc in QCoreApplication::notifyInternal (this=0x19fce40, receiver=0x4827b50, event=0x48302b0) at kernel/qcoreapplication.cpp:787
#41 0x00007fbb6f05251f in sendEvent (event=0x48302b0, receiver=0x4827b50) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#42 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x199b430) at kernel/qcoreapplication.cpp:1428
#43 0x00007fbb6f079a73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#44 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#45 0x00007fbb66412a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007fbb66413258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007fbb66413429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007fbb6f079ed6 in QEventDispatcherGlib::processEvents (this=0x199cf40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#49 0x00007fbb6e4a707e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007fbb6f04dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007fbb6f04def7 in QEventLoop::exec (this=0x7fff154b0a80, flags=...) at kernel/qeventloop.cpp:201
#52 0x00007fbb6f052789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#53 0x00007fbb721931a3 in kdemain (argc=1, argv=0x7fff154b0e68) at ../../../../plasma/desktop/shell/main.cpp:120
#54 0x00007fbb71dd430d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff154b0e68, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff154b0e58) at libc-start.c:226
#55 0x0000000000400671 in _start ()

Possible duplicates by query: bug 290365, bug 290092, bug 289890, bug 289803, bug 289782.

Reported using DrKonqi