Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
GTK window black after plasma-desktop crash.

The crash can be reproduced every time.

-- Backtrace:
Application: Shell da área de trabalho do Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f233f1617c0 (LWP 31668))]

Thread 4 (Thread 0x7f231c4d8700 (LWP 31681)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f231c4d79f0 in ?? ()
#2  0x00007fff4d95e7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 3 (Thread 0x7f2313fff700 (LWP 31688)):
#0  0x00007f2333ae41fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x287cb28) at pthread_mutex_unlock.c:290
#2  0x00007f2332fd3900 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2332fd4258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2332fd4429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f233bc3af3e in QEventDispatcherGlib::processEvents (this=0x287c6b0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f233bc0ecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f233bc0eef7 in QEventLoop::exec (this=0x7f2313ffecd0, flags=...) at kernel/qeventloop.cpp:201
#8  0x00007f233bb2627f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#9  0x00007f233bbf1cbf in QInotifyFileSystemWatcherEngine::run (this=0x273ddd0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f233bb28d05 in QThreadPrivate::start (arg=0x273ddd0) at thread/qthread_unix.cpp:331
#11 0x00007f23302ec2da in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0x00007f2333ae0efc in start_thread (arg=0x7f2313fff700) at pthread_create.c:304
#13 0x00007f233ea5489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f2310dc5700 (LWP 31712)):
#0  0x00007f2332fd305a in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2332fd3dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2332fd4792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f23118a3516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f2332ff92b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f23302ec2da in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007f2333ae0efc in start_thread (arg=0x7f2310dc5700) at pthread_create.c:304
#7  0x00007f233ea5489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f233f1617c0 (LWP 31668)):
[KCrash Handler]
#6  QGraphicsLayoutItemPrivate::hasHeightForWidth (this=0x740065006e002e) at graphicsview/qgraphicslayoutitem.cpp:280
#7  0x00007f233b5e7591 in QGridLayoutItem::hasDynamicConstraint (this=<optimized out>) at graphicsview/qgridlayoutengine.cpp:576
#8  0x00007f233b5e86b2 in ensureDynamicConstraint (this=0x47b6090) at graphicsview/qgridlayoutengine.cpp:1657
#9  QGridLayoutEngine::ensureDynamicConstraint (this=0x47b6090) at graphicsview/qgridlayoutengine.cpp:1652
#10 0x00007f233b5e8769 in QGridLayoutEngine::hasDynamicConstraint (this=0x47b6090) at graphicsview/qgridlayoutengine.cpp:1677
#11 0x00007f233b5eca98 in QGridLayoutEngine::sizeHint (this=0x47b6090, styleInfo=..., which=Qt::MaximumSize, constraint=...) at graphicsview/qgridlayoutengine.cpp:1134
#12 0x00007f233b57601a in QGraphicsGridLayout::sizeHint (this=<optimized out>, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicsgridlayout.cpp:656
#13 0x00007f233b5a0bd9 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x47b5f80, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:169
#14 0x00007f233b5a1491 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 0x00007f233b5de231 in QGraphicsWidget::sizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicswidget.cpp:743
#17 0x00007f233b5a0caf in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x47b5e90, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:175
#18 0x00007f233b5a1491 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 0x00007f23246a8905 in SystemTray::TaskArea::adjustHiddentTasksWidget (this=0x47bf400) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:452
#21 0x00007f23246aa5d9 in SystemTray::TaskArea::addWidgetForTask (this=0x47bf400, task=0x49796e0) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:320
#22 0x00007f23246aa926 in SystemTray::TaskArea::addTask (this=0x47bf400, task=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#23 0x00007f23246ab124 in SystemTray::TaskArea::qt_metacall (this=0x47bf400, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff4d84df10) at ./taskarea.moc:89
#24 0x00007f233bc22eba in QMetaObject::activate (sender=0x1f7bf60, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff4d84df10) at kernel/qobject.cpp:3278
#25 0x00007f232468d87f in SystemTray::Manager::taskAdded (this=<optimized out>, _t1=0x49796e0) at ./manager.moc:99
#26 0x00007f232468da95 in SystemTray::Manager::addTask (this=0x1f7bf60, task=0x49796e0) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:87
#27 0x00007f232468dbe4 in SystemTray::Manager::qt_metacall (this=0x1f7bf60, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff4d84e080) at ./manager.moc:86
#28 0x00007f233bc22eba in QMetaObject::activate (sender=0x1fc3fc0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff4d84e080) at kernel/qobject.cpp:3278
#29 0x00007f232468e08f in SystemTray::Protocol::taskCreated (this=<optimized out>, _t1=0x49796e0) at ./protocol.moc:91
#30 0x00007f2324695178 in SystemTray::PlasmoidProtocol::addApplet (this=0x1fc3fc0, appletName=..., id=<optimized out>, parent=0x3fd7820) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:112
#31 0x00007f232468d6d6 in SystemTray::Manager::addApplet (this=<optimized out>, appletName=<optimized out>, parent=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:110
#32 0x00007f232469fa30 in SystemTray::Applet::checkDefaultApplets (this=0x3fd7820) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:737
#33 0x00007f23246a0a4c in SystemTray::Applet::qt_metacall (this=0x3fd7820, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x48536d0) at ./applet.moc:91
#34 0x00007f233bc26a5e in QObject::event (this=0x3fd7820, e=<optimized out>) at kernel/qobject.cpp:1217
#35 0x00007f233b5de89b in QGraphicsWidget::event (this=0x3fd7820, event=0x4852d30) at graphicsview/qgraphicswidget.cpp:1455
#36 0x00007f233afc0424 in notify_helper (e=0x4852d30, receiver=0x3fd7820, this=0x1d11c30) at kernel/qapplication.cpp:4486
#37 QApplicationPrivate::notify_helper (this=0x1d11c30, receiver=0x3fd7820, e=0x4852d30) at kernel/qapplication.cpp:4458
#38 0x00007f233afc5291 in QApplication::notify (this=0x1cbf330, receiver=0x3fd7820, e=0x4852d30) at kernel/qapplication.cpp:4365
#39 0x00007f233c8be126 in KApplication::notify (this=0x1cbf330, receiver=0x3fd7820, event=0x4852d30) at ../../kdeui/kernel/kapplication.cpp:311
#40 0x00007f233bc0fafc in QCoreApplication::notifyInternal (this=0x1cbf330, receiver=0x3fd7820, event=0x4852d30) at kernel/qcoreapplication.cpp:787
#41 0x00007f233bc1351f in sendEvent (event=0x4852d30, receiver=0x3fd7820) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#42 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1c4e430) at kernel/qcoreapplication.cpp:1428
#43 0x00007f233bc3aa73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#44 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#45 0x00007f2332fd3a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f2332fd4258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f2332fd4429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f233bc3aed6 in QEventDispatcherGlib::processEvents (this=0x1c4ff40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#49 0x00007f233b06807e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007f233bc0ecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007f233bc0eef7 in QEventLoop::exec (this=0x7fff4d84eae0, flags=...) at kernel/qeventloop.cpp:201
#52 0x00007f233bc13789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#53 0x00007f233ed531a3 in kdemain (argc=1, argv=0x7fff4d84eec8) at ../../../../plasma/desktop/shell/main.cpp:120
#54 0x00007f233e99430d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff4d84eec8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4d84eeb8) at libc-start.c:226
#55 0x0000000000400671 in _start ()

Possible duplicates by query: bug 289208, bug 289155, bug 289104, bug 289040, bug 288431.

Reported using DrKonqi