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:
When I try to add the default panel, the GUI crashes and restarts.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fda65bde7c0 (LWP 1628))]

Thread 7 (Thread 0x7fda3cd58700 (LWP 1629)):
#0  0x00007fda654c1773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fda59a4ef68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fda59a4f429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fda626b5f3e in QEventDispatcherGlib::processEvents (this=0x2e3d040, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fda62689cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fda62689ef7 in QEventLoop::exec (this=0x7fda3cd57cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fda625a127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fda6266ccbf in QInotifyFileSystemWatcherEngine::run (this=0x2e3c890) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fda625a3d05 in QThreadPrivate::start (arg=0x2e3c890) at thread/qthread_unix.cpp:331
#9  0x00007fda56d6856c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007fda5a55befc in start_thread (arg=0x7fda3cd58700) at pthread_create.c:304
#11 0x00007fda654cd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fda363e0700 (LWP 1630)):
#0  0x00007fda654c1773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fda59a4ef68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fda59a4f429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fda626b5f3e in QEventDispatcherGlib::processEvents (this=0x3140d30, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fda62689cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fda62689ef7 in QEventLoop::exec (this=0x7fda363dfcd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fda625a127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fda6266ccbf in QInotifyFileSystemWatcherEngine::run (this=0x313ff70) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fda625a3d05 in QThreadPrivate::start (arg=0x313ff70) at thread/qthread_unix.cpp:331
#9  0x00007fda56d6856c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007fda5a55befc in start_thread (arg=0x7fda363e0700) at pthread_create.c:304
#11 0x00007fda654cd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fda308ce700 (LWP 1638)):
#0  0x00007fda654c1773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fda59a4ef68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fda59a4f792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fda313ac516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fda59a742b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fda56d6856c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007fda5a55befc in start_thread (arg=0x7fda308ce700) at pthread_create.c:304
#7  0x00007fda654cd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fda300cd700 (LWP 1639)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fda60b5dc2c in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fda60b5dd59 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fda56d6856c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007fda5a55befc in start_thread (arg=0x7fda300cd700) at pthread_create.c:304
#5  0x00007fda654cd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fda2f8cc700 (LWP 1640)):
#0  0x00007fda59a4dfcb in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fda59a4edfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fda59a4f429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fda626b5ed6 in QEventDispatcherGlib::processEvents (this=0x3884820, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#4  0x00007fda62689cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fda62689ef7 in QEventLoop::exec (this=0x7fda2f8cbd00, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fda625a127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fda625a3d05 in QThreadPrivate::start (arg=0x3883840) at thread/qthread_unix.cpp:331
#8  0x00007fda56d6856c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007fda5a55befc in start_thread (arg=0x7fda2f8cc700) at pthread_create.c:304
#10 0x00007fda654cd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fda294b4700 (LWP 2117)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fda5f6bafe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fda5f6bb019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fda56d6856c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007fda5a55befc in start_thread (arg=0x7fda294b4700) at pthread_create.c:304
#5  0x00007fda654cd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fda65bde7c0 (LWP 1628)):
[KCrash Handler]
#6  QGraphicsLayoutItemPrivate::hasHeightForWidth (this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:282
#7  0x00007fda62062591 in QGridLayoutItem::hasDynamicConstraint (this=<optimized out>) at graphicsview/qgridlayoutengine.cpp:576
#8  0x00007fda620636b2 in ensureDynamicConstraint (this=0xa16c7d0) at graphicsview/qgridlayoutengine.cpp:1657
#9  QGridLayoutEngine::ensureDynamicConstraint (this=0xa16c7d0) at graphicsview/qgridlayoutengine.cpp:1652
#10 0x00007fda62063769 in QGridLayoutEngine::hasDynamicConstraint (this=0xa16c7d0) at graphicsview/qgridlayoutengine.cpp:1677
#11 0x00007fda62067a98 in QGridLayoutEngine::sizeHint (this=0xa16c7d0, styleInfo=..., which=Qt::MaximumSize, constraint=...) at graphicsview/qgridlayoutengine.cpp:1134
#12 0x00007fda61ff101a in QGraphicsGridLayout::sizeHint (this=<optimized out>, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicsgridlayout.cpp:656
#13 0x00007fda6201bbd9 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0xa16c6c0, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:169
#14 0x00007fda6201c491 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 0x00007fda62059231 in QGraphicsWidget::sizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicswidget.cpp:743
#17 0x00007fda6201bcaf in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x7c66760, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:175
#18 0x00007fda6201c491 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 0x00007fda49f71905 in SystemTray::TaskArea::adjustHiddentTasksWidget (this=0x91dfb90) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:452
#21 0x00007fda49f735d9 in SystemTray::TaskArea::addWidgetForTask (this=0x91dfb90, task=0x6d3b310) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:320
#22 0x00007fda49f73926 in SystemTray::TaskArea::addTask (this=0x91dfb90, task=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#23 0x00007fda49f74124 in SystemTray::TaskArea::qt_metacall (this=0x91dfb90, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff0a0370e0) at ./taskarea.moc:89
#24 0x00007fda6269deba in QMetaObject::activate (sender=0x1f9e2b0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff0a0370e0) at kernel/qobject.cpp:3278
#25 0x00007fda49f5687f in SystemTray::Manager::taskAdded (this=<optimized out>, _t1=0x6d3b310) at ./manager.moc:99
#26 0x00007fda49f56a95 in SystemTray::Manager::addTask (this=0x1f9e2b0, task=0x6d3b310) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:87
#27 0x00007fda49f56be4 in SystemTray::Manager::qt_metacall (this=0x1f9e2b0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff0a037250) at ./manager.moc:86
#28 0x00007fda6269deba in QMetaObject::activate (sender=0x1f9def0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff0a037250) at kernel/qobject.cpp:3278
#29 0x00007fda49f5708f in SystemTray::Protocol::taskCreated (this=<optimized out>, _t1=0x6d3b310) at ./protocol.moc:91
#30 0x00007fda49f5e178 in SystemTray::PlasmoidProtocol::addApplet (this=0x1f9def0, appletName=..., id=<optimized out>, parent=0x6af6200) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:112
#31 0x00007fda49f566d6 in SystemTray::Manager::addApplet (this=<optimized out>, appletName=<optimized out>, parent=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:110
#32 0x00007fda49f68a30 in SystemTray::Applet::checkDefaultApplets (this=0x6af6200) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:737
#33 0x00007fda49f69a4c in SystemTray::Applet::qt_metacall (this=0x6af6200, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x8186550) at ./applet.moc:91
#34 0x00007fda626a1a5e in QObject::event (this=0x6af6200, e=<optimized out>) at kernel/qobject.cpp:1217
#35 0x00007fda6205989b in QGraphicsWidget::event (this=0x6af6200, event=0x6f963a0) at graphicsview/qgraphicswidget.cpp:1455
#36 0x00007fda61a3b424 in notify_helper (e=0x6f963a0, receiver=0x6af6200, this=0x1c57ba0) at kernel/qapplication.cpp:4486
#37 QApplicationPrivate::notify_helper (this=0x1c57ba0, receiver=0x6af6200, e=0x6f963a0) at kernel/qapplication.cpp:4458
#38 0x00007fda61a40291 in QApplication::notify (this=0x1c47d50, receiver=0x6af6200, e=0x6f963a0) at kernel/qapplication.cpp:4365
#39 0x00007fda633391e6 in KApplication::notify (this=0x1c47d50, receiver=0x6af6200, event=0x6f963a0) at ../../kdeui/kernel/kapplication.cpp:311
#40 0x00007fda6268aafc in QCoreApplication::notifyInternal (this=0x1c47d50, receiver=0x6af6200, event=0x6f963a0) at kernel/qcoreapplication.cpp:787
#41 0x00007fda6268e51f in sendEvent (event=0x6f963a0, receiver=0x6af6200) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#42 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1ba4430) at kernel/qcoreapplication.cpp:1428
#43 0x00007fda626b5a73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#44 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#45 0x00007fda59a4ea5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007fda59a4f258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007fda59a4f429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007fda626b5ed6 in QEventDispatcherGlib::processEvents (this=0x1ba5f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#49 0x00007fda61ae307e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007fda62689cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007fda62689ef7 in QEventLoop::exec (this=0x7fff0a037cb0, flags=...) at kernel/qeventloop.cpp:201
#52 0x00007fda6268e789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#53 0x00007fda657cc1a3 in kdemain (argc=1, argv=0x7fff0a038098) at ../../../../plasma/desktop/shell/main.cpp:120
#54 0x00007fda6540d30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff0a038098, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff0a038088) at libc-start.c:226
#55 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 280549.

Possible duplicates by query: bug 284262, bug 284253, bug 284189, bug 284123, bug 284115.

Reported using DrKonqi