Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.8.0
Operating System: Linux 3.1.0-7.fc16.x86_64 x86_64
Distribution: "Fedora release 16 (Verne)"

-- Information about the crash:
precondition: kde installed via yum at Fedora 16.


1.Click 'Desktop'
2.Click 'Add panel'.
3.Click 'Default panel'
===>black screen, nothing happens
===>message about crash
Expected: Defualt panel should be added

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f619f87d840 (LWP 5363))]

Thread 3 (Thread 0x7f617e262700 (LWP 5364)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x00007f619ea69e52 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f619ed63240) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f619ea69e89 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f61998acd90 in start_thread (arg=0x7f617e262700) at pthread_create.c:309
#4  0x00007f6198186ddd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7f617aa90700 (LWP 5365)):
#0  0x00007f619817e443 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f619087cf88 in g_main_context_poll (n_fds=1, fds=0x7f6174002400, priority=<optimized out>, timeout=-1, context=0x7f61740009a0) at gmain.c:3386
#2  g_main_context_iterate (context=0x7f61740009a0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3068
#3  0x00007f619087d44c in g_main_context_iteration (context=0x7f61740009a0, may_block=1) at gmain.c:3136
#4  0x00007f6199c67896 in QEventDispatcherGlib::processEvents (this=0x7f61740008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f6199c37c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f6199c37ed7 in QEventLoop::exec (this=0x7f617aa8fd10, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f6199b39ad7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f6199c17a5f in QInotifyFileSystemWatcherEngine::run (this=0x104dbd0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f6199b3cb1b in QThreadPrivate::start (arg=0x104dbd0) at thread/qthread_unix.cpp:298
#10 0x00007f61998acd90 in start_thread (arg=0x7f617aa90700) at pthread_create.c:309
#11 0x00007f6198186ddd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f619f87d840 (LWP 5363)):
[KCrash Handler]
#6  QGraphicsLayoutItemPrivate::hasHeightForWidth (this=0x740065006e002e) at graphicsview/qgraphicslayoutitem.cpp:280
#7  0x00007f61993efe71 in QGridLayoutItem::hasDynamicConstraint (this=0x3731840) at graphicsview/qgridlayoutengine.cpp:576
#8  0x00007f61993f0fd2 in ensureDynamicConstraint (this=0x329bde0) at graphicsview/qgridlayoutengine.cpp:1666
#9  QGridLayoutEngine::ensureDynamicConstraint (this=0x329bde0) at graphicsview/qgridlayoutengine.cpp:1661
#10 0x00007f61993f1089 in QGridLayoutEngine::hasDynamicConstraint (this=0x329bde0) at graphicsview/qgridlayoutengine.cpp:1686
#11 0x00007f61993f4fd8 in QGridLayoutEngine::sizeHint (this=0x329bde0, styleInfo=..., which=Qt::MaximumSize, constraint=...) at graphicsview/qgridlayoutengine.cpp:1143
#12 0x00007f619937ec6a in QGraphicsGridLayout::sizeHint (this=<optimized out>, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicsgridlayout.cpp:670
#13 0x00007f61993a96c9 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x329bcd0, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:169
#14 0x00007f61993a9f71 in effectiveSizeHint (constraint=<optimized out>, which=<optimized out>, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:813
#15 QGraphicsLayoutItem::effectiveSizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:805
#16 0x00007f61993e68b1 in QGraphicsWidget::sizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicswidget.cpp:743
#17 0x00007f61993a979f in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x31bd300, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:175
#18 0x00007f61993a9f71 in effectiveSizeHint (constraint=<optimized out>, which=<optimized out>, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:813
#19 QGraphicsLayoutItem::effectiveSizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:805
#20 0x00007f61790a1af5 in SystemTray::TaskArea::adjustHiddentTasksWidget (this=0x2052eb0) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/ui/taskarea.cpp:452
#21 0x00007f61790a37c9 in SystemTray::TaskArea::addWidgetForTask (this=0x2052eb0, task=0x1c194a0) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/ui/taskarea.cpp:320
#22 0x00007f61790a3b16 in SystemTray::TaskArea::addTask (this=0x2052eb0, task=<optimized out>) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#23 0x00007f6199c4c7d1 in QMetaObject::activate (sender=0x1330130, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff77bde1e0) at kernel/qobject.cpp:3546
#24 0x00007f6179086c9f in SystemTray::Manager::taskAdded (this=<optimized out>, _t1=0x1c194a0) at /usr/src/debug/kde-workspace-4.7.3/x86_64-redhat-linux-gnu/plasma/generic/applets/systemtray/manager.moc:113
#25 0x00007f6179086eb5 in SystemTray::Manager::addTask (this=0x1330130, task=0x1c194a0) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/core/manager.cpp:87
#26 0x00007f6199c4c7d1 in QMetaObject::activate (sender=0x1308d20, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff77bde390) at kernel/qobject.cpp:3546
#27 0x00007f617908747f in SystemTray::Protocol::taskCreated (this=<optimized out>, _t1=0x1c194a0) at /usr/src/debug/kde-workspace-4.7.3/x86_64-redhat-linux-gnu/plasma/generic/applets/systemtray/protocol.moc:105
#28 0x00007f617908e568 in SystemTray::PlasmoidProtocol::addApplet (this=0x1308d20, appletName=..., id=<optimized out>, parent=0x20517f0) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:112
#29 0x00007f6179086af6 in SystemTray::Manager::addApplet (this=<optimized out>, appletName=<optimized out>, parent=<optimized out>) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/core/manager.cpp:110
#30 0x00007f6179098bb0 in SystemTray::Applet::checkDefaultApplets (this=0x20517f0) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/ui/applet.cpp:737
#31 0x00007f6199c519e6 in QObject::event (this=0x20517f0, e=<optimized out>) at kernel/qobject.cpp:1194
#32 0x00007f61993e6f1b in QGraphicsWidget::event (this=0x20517f0, event=0x3731b80) at graphicsview/qgraphicswidget.cpp:1461
#33 0x00007f6198db66f4 in notify_helper (e=0x3731b80, receiver=0x20517f0, this=0xc46700) at kernel/qapplication.cpp:4518
#34 QApplicationPrivate::notify_helper (this=0xc46700, receiver=0x20517f0, e=0x3731b80) at kernel/qapplication.cpp:4490
#35 0x00007f6198dbb573 in QApplication::notify (this=0xc39330, receiver=0x20517f0, e=0x3731b80) at kernel/qapplication.cpp:4379
#36 0x00007f619ab91396 in KApplication::notify (this=0xc39330, receiver=0x20517f0, event=0x3731b80) at /usr/src/debug/kdelibs-4.7.3/kdeui/kernel/kapplication.cpp:311
#37 0x00007f6199c38b4c in QCoreApplication::notifyInternal (this=0xc39330, receiver=0x20517f0, event=0x3731b80) at kernel/qcoreapplication.cpp:876
#38 0x00007f6199c3c5da in sendEvent (event=0x3731b80, receiver=0x20517f0) at kernel/qcoreapplication.h:231
#39 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xbe36e0) at kernel/qcoreapplication.cpp:1500
#40 0x00007f6199c67403 in sendPostedEvents () at kernel/qcoreapplication.h:236
#41 postEventSourceDispatch (s=0xc49400) at kernel/qeventdispatcher_glib.cpp:279
#42 0x00007f619087ca7d in g_main_dispatch (context=0xc48ac0) at gmain.c:2425
#43 g_main_context_dispatch (context=0xc48ac0) at gmain.c:2995
#44 0x00007f619087d278 in g_main_context_iterate (context=0xc48ac0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3073
#45 0x00007f619087d44c in g_main_context_iteration (context=0xc48ac0, may_block=1) at gmain.c:3136
#46 0x00007f6199c6782f in QEventDispatcherGlib::processEvents (this=0xbe4ba0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#47 0x00007f6198e5943e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#48 0x00007f6199c37c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#49 0x00007f6199c37ed7 in QEventLoop::exec (this=0x7fff77bdef70, flags=...) at kernel/qeventloop.cpp:204
#50 0x00007f6199c3c8d5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#51 0x00007f619f46b243 in kdemain (argc=1, argv=0x7fff77bdf358) at /usr/src/debug/kde-workspace-4.7.3/plasma/desktop/shell/main.cpp:120
#52 0x00007f61980b969d in __libc_start_main (main=0x400850 <main(int, char**)>, argc=1, ubp_av=0x7fff77bdf358, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff77bdf348) at libc-start.c:226
#53 0x0000000000400881 in _start ()

Possible duplicates by query: bug 287885, bug 287802, bug 287756, bug 287632, bug 287313.

Reported using DrKonqi