Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.1 (4.7.1)
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 used standart method - right click - add panel - add standart panel. Then i get black screen. Visual effects was not powered on.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Оболочка Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f00e65ec7a0 (LWP 1549))]

Thread 5 (Thread 0x7f00c4320700 (LWP 1652)):
#0  0x00007fffccfff92c in clock_gettime ()
#1  0x00007f00da70907b in __GI_clock_gettime (clock_id=1, tp=0x7f00c431fb20) at ../sysdeps/unix/clock_gettime.c:100
#2  0x00007f00e2ff9074 in do_gettime (frac=0x7f00c431fb38, sec=0x7f00c431fb30) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f00e30bb6ed in QTimerInfoList::updateCurrentTime (this=0x212efb0) at kernel/qeventdispatcher_unix.cpp:339
#5  0x00007f00e30bba33 in QTimerInfoList::timerWait (this=0x212efb0, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#6  0x00007f00e30ba44c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f00c431fc1c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f00e30ba4f5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f00da452ff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f00da453dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f00da454429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f00e30baf3e in QEventDispatcherGlib::processEvents (this=0x212f880, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#12 0x00007f00e308ecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f00e308eef7 in QEventLoop::exec (this=0x7f00c431fdb0, flags=...) at kernel/qeventloop.cpp:201
#14 0x00007f00e2fa627f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#15 0x00007f00e3071cbf in QInotifyFileSystemWatcherEngine::run (this=0x2122460) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007f00e2fa8d05 in QThreadPrivate::start (arg=0x2122460) at thread/qthread_unix.cpp:331
#17 0x00007f00daf60efc in start_thread (arg=0x7f00c4320700) at pthread_create.c:304
#18 0x00007f00e5ed289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f00c1822700 (LWP 1653)):
#0  0x00007f00da453d53 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f00da454429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f00e30baf3e in QEventDispatcherGlib::processEvents (this=0x232d050, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#3  0x00007f00e308ecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#4  0x00007f00e308eef7 in QEventLoop::exec (this=0x7f00c1821db0, flags=...) at kernel/qeventloop.cpp:201
#5  0x00007f00e2fa627f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#6  0x00007f00e3071cbf in QInotifyFileSystemWatcherEngine::run (this=0x2324c20) at io/qfilesystemwatcher_inotify.cpp:248
#7  0x00007f00e2fa8d05 in QThreadPrivate::start (arg=0x2324c20) at thread/qthread_unix.cpp:331
#8  0x00007f00daf60efc in start_thread (arg=0x7f00c1822700) at pthread_create.c:304
#9  0x00007f00e5ed289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f00be5d3700 (LWP 1659)):
#0  0x00007f00e5ec6773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f00da453f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f00da454792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f00bf0b1516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f00da4792b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f00daf60efc in start_thread (arg=0x7f00be5d3700) at pthread_create.c:304
#6  0x00007f00e5ed289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f00baed2700 (LWP 2486)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f00e00bffe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f00e00c0019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f00daf60efc in start_thread (arg=0x7f00baed2700) at pthread_create.c:304
#4  0x00007f00e5ed289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f00e65ec7a0 (LWP 1549)):
[KCrash Handler]
#6  QGraphicsLayoutItemPrivate::hasHeightForWidth (this=0x740065006e002e) at graphicsview/qgraphicslayoutitem.cpp:280
#7  0x00007f00e2a67591 in QGridLayoutItem::hasDynamicConstraint (this=<optimized out>) at graphicsview/qgridlayoutengine.cpp:576
#8  0x00007f00e2a686b2 in ensureDynamicConstraint (this=0x30951d0) at graphicsview/qgridlayoutengine.cpp:1657
#9  QGridLayoutEngine::ensureDynamicConstraint (this=0x30951d0) at graphicsview/qgridlayoutengine.cpp:1652
#10 0x00007f00e2a68769 in QGridLayoutEngine::hasDynamicConstraint (this=0x30951d0) at graphicsview/qgridlayoutengine.cpp:1677
#11 0x00007f00e2a6ca98 in QGridLayoutEngine::sizeHint (this=0x30951d0, styleInfo=..., which=Qt::MaximumSize, constraint=...) at graphicsview/qgridlayoutengine.cpp:1134
#12 0x00007f00e29f601a in QGraphicsGridLayout::sizeHint (this=<optimized out>, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicsgridlayout.cpp:656
#13 0x00007f00e2a20bd9 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x30950c0, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:169
#14 0x00007f00e2a21491 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 0x00007f00e2a5e231 in QGraphicsWidget::sizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicswidget.cpp:743
#17 0x00007f00e2a20caf in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x3714760, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:175
#18 0x00007f00e2a21491 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 0x00007f00ccbab905 in SystemTray::TaskArea::adjustHiddentTasksWidget (this=0x3711560) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:452
#21 0x00007f00ccbad5d9 in SystemTray::TaskArea::addWidgetForTask (this=0x3711560, task=0x3d88790) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:320
#22 0x00007f00ccbad926 in SystemTray::TaskArea::addTask (this=0x3711560, task=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#23 0x00007f00ccbae124 in SystemTray::TaskArea::qt_metacall (this=0x3711560, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffccf85a00) at ./taskarea.moc:89
#24 0x00007f00e30a2eba in QMetaObject::activate (sender=0x1c06ae0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffccf85a00) at kernel/qobject.cpp:3278
#25 0x00007f00ccb9087f in SystemTray::Manager::taskAdded (this=<optimized out>, _t1=0x3d88790) at ./manager.moc:99
#26 0x00007f00ccb90a95 in SystemTray::Manager::addTask (this=0x1c06ae0, task=0x3d88790) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:87
#27 0x00007f00ccb90be4 in SystemTray::Manager::qt_metacall (this=0x1c06ae0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffccf85b70) at ./manager.moc:86
#28 0x00007f00e30a2eba in QMetaObject::activate (sender=0x1bc6ae0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffccf85b70) at kernel/qobject.cpp:3278
#29 0x00007f00ccb9108f in SystemTray::Protocol::taskCreated (this=<optimized out>, _t1=0x3d88790) at ./protocol.moc:91
#30 0x00007f00ccb98178 in SystemTray::PlasmoidProtocol::addApplet (this=0x1bc6ae0, appletName=..., id=<optimized out>, parent=0x3743a10) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:112
#31 0x00007f00ccb906d6 in SystemTray::Manager::addApplet (this=<optimized out>, appletName=<optimized out>, parent=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:110
#32 0x00007f00ccba2a30 in SystemTray::Applet::checkDefaultApplets (this=0x3743a10) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:737
#33 0x00007f00ccba3a4c in SystemTray::Applet::qt_metacall (this=0x3743a10, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x30adfa0) at ./applet.moc:91
#34 0x00007f00e30a6a5e in QObject::event (this=0x3743a10, e=<optimized out>) at kernel/qobject.cpp:1217
#35 0x00007f00e2a5e89b in QGraphicsWidget::event (this=0x3743a10, event=0x3074fc0) at graphicsview/qgraphicswidget.cpp:1455
#36 0x00007f00e2440424 in notify_helper (e=0x3074fc0, receiver=0x3743a10, this=0x169ce40) at kernel/qapplication.cpp:4486
#37 QApplicationPrivate::notify_helper (this=0x169ce40, receiver=0x3743a10, e=0x3074fc0) at kernel/qapplication.cpp:4458
#38 0x00007f00e2445291 in QApplication::notify (this=0x168e340, receiver=0x3743a10, e=0x3074fc0) at kernel/qapplication.cpp:4365
#39 0x00007f00e3d3e1e6 in KApplication::notify (this=0x168e340, receiver=0x3743a10, event=0x3074fc0) at ../../kdeui/kernel/kapplication.cpp:311
#40 0x00007f00e308fafc in QCoreApplication::notifyInternal (this=0x168e340, receiver=0x3743a10, event=0x3074fc0) at kernel/qcoreapplication.cpp:787
#41 0x00007f00e309351f in sendEvent (event=0x3074fc0, receiver=0x3743a10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#42 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1625430) at kernel/qcoreapplication.cpp:1428
#43 0x00007f00e30baa73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#44 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#45 0x00007f00da453a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f00da454258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f00da454429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f00e30baed6 in QEventDispatcherGlib::processEvents (this=0x1626f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#49 0x00007f00e24e807e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007f00e308ecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007f00e308eef7 in QEventLoop::exec (this=0x7fffccf865d0, flags=...) at kernel/qeventloop.cpp:201
#52 0x00007f00e3093789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#53 0x00007f00e61d11a3 in kdemain (argc=1, argv=0x7fffccf869b8) at ../../../../plasma/desktop/shell/main.cpp:120
#54 0x00007f00e5e1230d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffccf869b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffccf869a8) at libc-start.c:226
#55 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 284001.

Possible duplicates by query: bug 284001, bug 283798, bug 283132, bug 282922, bug 282748.

Reported using DrKonqi