Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-13-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
I added the 'system try' widget to the panel.
I'm using kde 4.7.2 from kubuntu 11.10. This problem repeats every time.
- Custom settings of the application:

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7758b20 (LWP 3167))]

Thread 3 (Thread 0xb1826b70 (LWP 3169)):
#0  0x05933dbd in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x00852f14 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0x03295933 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x03295c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x06a7eb37 in QEventDispatcherGlib::processEvents (this=0x935a378, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x06a4f1dd in QEventLoop::processEvents (this=0xb18262a0, flags=...) at kernel/qeventloop.cpp:149
#6  0x06a4f421 in QEventLoop::exec (this=0xb18262a0, flags=...) at kernel/qeventloop.cpp:201
#7  0x0695290b in QThread::exec (this=0x93590e0) at thread/qthread.cpp:498
#8  0x06a2fe2d in QInotifyFileSystemWatcherEngine::run (this=0x93590e0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x069557b3 in QThreadPrivate::start (arg=0x93590e0) at thread/qthread_unix.cpp:331
#10 0x05931d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#11 0x008450ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xafa97b70 (LWP 3170)):
#0  0x0324cd10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x069ac7d5 in do_gettime (frac=0xafa97010, sec=0xafa97008) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x06a7f4b6 in QTimerInfoList::updateCurrentTime (this=0xb0f007e4) at kernel/qeventdispatcher_unix.cpp:339
#4  0x06a7f80a in QTimerInfoList::timerWait (this=0xb0f007e4, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x06a7e053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xafa9711c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x06a7e0ed in timerSourcePrepare (source=0xb0f007b0, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x0329488c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x03295637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x03295c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x06a7eb37 in QEventDispatcherGlib::processEvents (this=0xb0f007a0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x06a4f1dd in QEventLoop::processEvents (this=0xafa972a0, flags=...) at kernel/qeventloop.cpp:149
#12 0x06a4f421 in QEventLoop::exec (this=0xafa972a0, flags=...) at kernel/qeventloop.cpp:201
#13 0x0695290b in QThread::exec (this=0x94d97b0) at thread/qthread.cpp:498
#14 0x06a2fe2d in QInotifyFileSystemWatcherEngine::run (this=0x94d97b0) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x069557b3 in QThreadPrivate::start (arg=0x94d97b0) at thread/qthread_unix.cpp:331
#16 0x05931d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x008450ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb7758b20 (LWP 3167)):
[KCrash Handler]
#7  QGraphicsLayoutItemPrivate::hasHeightForWidth (this=0x0) at graphicsview/qgraphicslayoutitem.cpp:280
#8  0x047a7458 in QGridLayoutItem::hasDynamicConstraint (this=0x8c68528) at graphicsview/qgridlayoutengine.cpp:576
#9  0x047a844e in ensureDynamicConstraint (this=0x9234488) at graphicsview/qgridlayoutengine.cpp:1657
#10 QGridLayoutEngine::ensureDynamicConstraint (this=0x9234488) at graphicsview/qgridlayoutengine.cpp:1652
#11 0x047a84f0 in QGridLayoutEngine::hasDynamicConstraint (this=0x9234488) at graphicsview/qgridlayoutengine.cpp:1677
#12 0x047ac942 in QGridLayoutEngine::sizeHint (this=0x9234488, styleInfo=..., which=Qt::MaximumSize, constraint=...) at graphicsview/qgridlayoutengine.cpp:1134
#13 0x0472d42f in QGraphicsGridLayout::sizeHint (this=0x98d2380, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicsgridlayout.cpp:656
#14 0x0475a365 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x9234398, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:169
#15 0x0475ad54 in effectiveSizeHint (constraint=..., which=Qt::MinimumSize, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:818
#16 QGraphicsLayoutItem::effectiveSizeHint (this=0x98d2380, which=Qt::MinimumSize, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:810
#17 0x0479d39c in QGraphicsWidget::sizeHint (this=0x9935930, which=Qt::MinimumSize, constraint=...) at graphicsview/qgraphicswidget.cpp:743
#18 0x0475a417 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x92342a0, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:175
#19 0x0475ad54 in effectiveSizeHint (constraint=..., which=Qt::PreferredSize, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:818
#20 QGraphicsLayoutItem::effectiveSizeHint (this=0x9935940, which=Qt::PreferredSize, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:810
#21 0x04faf331 in SystemTray::TaskArea::adjustHiddentTasksWidget (this=0x8c543e0) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:452
#22 0x04fb1339 in SystemTray::TaskArea::addWidgetForTask (this=0x8c543e0, task=0xb01d670) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:320
#23 0x04fb16df in SystemTray::TaskArea::addTask (this=0x8c543e0, task=0xb01d670) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#24 0x04fb1d8d in SystemTray::TaskArea::qt_metacall (this=0x8c543e0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbfc93168) at ./taskarea.moc:89
#25 0x06a56b7d in metacall (argv=0xbfc93168, idx=23, cl=QMetaObject::InvokeMetaMethod, object=0x8c543e0) at kernel/qmetaobject.cpp:237
#26 QMetaObject::metacall (object=0x8c543e0, cl=QMetaObject::InvokeMetaMethod, idx=23, argv=0xbfc93168) at kernel/qmetaobject.cpp:232
#27 0x06a65a6a in QMetaObject::activate (sender=0x8ed20c8, m=0x4fbe038, local_signal_index=0, argv=0xbfc93168) at kernel/qobject.cpp:3278
#28 0x04f90e85 in SystemTray::Manager::taskAdded (this=0x8ed20c8, _t1=0xb01d670) at ./manager.moc:99
#29 0x04f91128 in SystemTray::Manager::addTask (this=0x8ed20c8, task=0xb01d670) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:87
#30 0x04f912cd in SystemTray::Manager::qt_metacall (this=0x8ed20c8, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbfc932e8) at ./manager.moc:86
#31 0x06a56b7d in metacall (argv=0xbfc932e8, idx=7, cl=QMetaObject::InvokeMetaMethod, object=0x8ed20c8) at kernel/qmetaobject.cpp:237
#32 QMetaObject::metacall (object=0x8ed20c8, cl=QMetaObject::InvokeMetaMethod, idx=7, argv=0xbfc932e8) at kernel/qmetaobject.cpp:232
#33 0x06a65a6a in QMetaObject::activate (sender=0x8e9a500, m=0x4fbe09c, local_signal_index=0, argv=0xbfc932e8) at kernel/qobject.cpp:3278
#34 0x04f91875 in SystemTray::Protocol::taskCreated (this=0x8e9a500, _t1=0xb01d670) at ./protocol.moc:91
#35 0x04f99816 in SystemTray::PlasmoidProtocol::addApplet (this=0x8e9a500, appletName=..., id=0, parent=0x8c530b0) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:112
#36 0x04f90c29 in SystemTray::Manager::addApplet (this=0x8ed20c8, appletName=..., parent=0x8c530b0) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:110
#37 0x04fa54fb in SystemTray::Applet::checkDefaultApplets (this=0x8c530b0) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:737
#38 0x04fa66ac in SystemTray::Applet::qt_metacall (this=0x8c530b0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xa190ce0) at ./applet.moc:91
#39 0x06a56b7d in metacall (argv=0xa190ce0, idx=83, cl=QMetaObject::InvokeMetaMethod, object=0x8c530b0) at kernel/qmetaobject.cpp:237
#40 QMetaObject::metacall (object=0x8c530b0, cl=QMetaObject::InvokeMetaMethod, idx=83, argv=0xa190ce0) at kernel/qmetaobject.cpp:232
#41 0x06a61685 in QMetaCallEvent::placeMetaCall (this=0x92e0f10, object=0x8c530b0) at kernel/qobject.cpp:535
#42 0x06a68b52 in QObject::event (this=0x8c530b0, e=0x92e0f10) at kernel/qobject.cpp:1217
#43 0x0479dbd4 in QGraphicsWidget::event (this=0x8c530b0, event=0x92e0f10) at graphicsview/qgraphicswidget.cpp:1455
#44 0x040ded54 in notify_helper (e=0x92e0f10, receiver=0x8c530b0, this=0x8b12df0) at kernel/qapplication.cpp:4486
#45 QApplicationPrivate::notify_helper (this=0x8b12df0, receiver=0x8c530b0, e=0x92e0f10) at kernel/qapplication.cpp:4458
#46 0x040e4103 in QApplication::notify (this=0x92e0f10, receiver=0x8c530b0, e=0x92e0f10) at kernel/qapplication.cpp:3886
#47 0x01133681 in KApplication::notify (this=0x8b078d0, receiver=0x8c530b0, event=0x92e0f10) at ../../kdeui/kernel/kapplication.cpp:311
#48 0x06a5019e in QCoreApplication::notifyInternal (this=0x8b078d0, receiver=0x8c530b0, event=0x92e0f10) at kernel/qcoreapplication.cpp:787
#49 0x06a53f93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#50 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8ac82e0) at kernel/qcoreapplication.cpp:1428
#51 0x06a540ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1321
#52 0x06a7e6a4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#53 postEventSourceDispatch (s=0x8b15ec0) at kernel/qeventdispatcher_glib.cpp:277
#54 0x0329525f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#55 0x03295990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#56 0x03295c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#57 0x06a7eada in QEventDispatcherGlib::processEvents (this=0x8ac9218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#58 0x04196e3a in QGuiEventDispatcherGlib::processEvents (this=0x8ac9218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#59 0x06a4f1dd in QEventLoop::processEvents (this=0xbfc93b94, flags=...) at kernel/qeventloop.cpp:149
#60 0x06a4f421 in QEventLoop::exec (this=0xbfc93b94, flags=...) at kernel/qeventloop.cpp:201
#61 0x06a5419d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#62 0x040dc8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#63 0x00f0318b in kdemain (argc=1, argv=0xbfc93d94) at ../../../../plasma/desktop/shell/main.cpp:120
#64 0x0804850b in main (argc=1, argv=0xbfc93d94) at plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 280596, bug 277367.

Possible duplicates by query: bug 285494, bug 285361, bug 284758, bug 284699, bug 284680.

Reported using DrKonqi