Bug 289803

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3) (Compiled from sources)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: I was adding a new panel using Plasma

- Unusual behavior I noticed: Black screen, following by an error message from Plasma.

The crash can be reproduced every time.

-- Backtrace:
Application: Shell del desktop di Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb78cfb20 (LWP 1433))]

Thread 5 (Thread 0xb17a9b70 (LWP 1434)):
#0  0x01e94d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x02f6d7d5 in do_gettime (frac=0xb17a9010, sec=0xb17a9008) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x030404b6 in QTimerInfoList::updateCurrentTime (this=0x917e89c) at kernel/qeventdispatcher_unix.cpp:339
#4  0x0304080a in QTimerInfoList::timerWait (this=0x917e89c, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x0303f053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xb17a911c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x0303f0ed in timerSourcePrepare (source=0x917e868, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x01eee88c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x01eef637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x01eefc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x0303fb37 in QEventDispatcherGlib::processEvents (this=0x917da40, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x030101dd in QEventLoop::processEvents (this=0xb17a92a0, flags=...) at kernel/qeventloop.cpp:149
#12 0x03010421 in QEventLoop::exec (this=0xb17a92a0, flags=...) at kernel/qeventloop.cpp:201
#13 0x02f1390b in QThread::exec (this=0x917a968) at thread/qthread.cpp:498
#14 0x02ff0e2d in QInotifyFileSystemWatcherEngine::run (this=0x917a968) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x02f167b3 in QThreadPrivate::start (arg=0x917a968) at thread/qthread_unix.cpp:331
#16 0x01b62d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 4 (Thread 0xafc50b70 (LWP 1435)):
#0  0x01e94d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x02f6d7d5 in do_gettime (frac=0xafc50010, sec=0xafc50008) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x030404b6 in QTimerInfoList::updateCurrentTime (this=0xb0e0177c) at kernel/qeventdispatcher_unix.cpp:339
#4  0x0304080a in QTimerInfoList::timerWait (this=0xb0e0177c, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x0303f053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xafc5011c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x0303f0ed in timerSourcePrepare (source=0xb0e01748, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x01eee88c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x01eef637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x01eefc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x0303fb37 in QEventDispatcherGlib::processEvents (this=0x9310f68, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x030101dd in QEventLoop::processEvents (this=0xafc502a0, flags=...) at kernel/qeventloop.cpp:149
#12 0x03010421 in QEventLoop::exec (this=0xafc502a0, flags=...) at kernel/qeventloop.cpp:201
#13 0x02f1390b in QThread::exec (this=0x930e918) at thread/qthread.cpp:498
#14 0x02ff0e2d in QInotifyFileSystemWatcherEngine::run (this=0x930e918) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x02f167b3 in QThreadPrivate::start (arg=0x930e918) at thread/qthread_unix.cpp:331
#16 0x01b62d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xad9ceb70 (LWP 1443)):
#0  0x001d3402 in poll () from /lib/i386-linux-gnu/libc.so.6
#1  0x01efe34b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x01eef896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x01eeff9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x06df7cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#5  0x01f165f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0x01b62d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#7  0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xac164b70 (LWP 3539)):
#0  0x007a6416 in __kernel_vsyscall ()
#1  0x01b66a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x001efcfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x074459a9 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0x074459ef in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0x01b62d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb78cfb20 (LWP 1433)):
[KCrash Handler]
#7  QGraphicsLayoutItemPrivate::hasHeightForWidth (this=0x4) at graphicsview/qgraphicslayoutitem.cpp:280
#8  0x02ae8458 in QGridLayoutItem::hasDynamicConstraint (this=0x9b4f658) at graphicsview/qgridlayoutengine.cpp:576
#9  0x02ae944e in ensureDynamicConstraint (this=0x9d9db38) at graphicsview/qgridlayoutengine.cpp:1657
#10 QGridLayoutEngine::ensureDynamicConstraint (this=0x9d9db38) at graphicsview/qgridlayoutengine.cpp:1652
#11 0x02ae94f0 in QGridLayoutEngine::hasDynamicConstraint (this=0x9d9db38) at graphicsview/qgridlayoutengine.cpp:1677
#12 0x02aed942 in QGridLayoutEngine::sizeHint (this=0x9d9db38, styleInfo=..., which=Qt::MaximumSize, constraint=...) at graphicsview/qgridlayoutengine.cpp:1134
#13 0x02a6e42f in QGraphicsGridLayout::sizeHint (this=0x9b57178, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicsgridlayout.cpp:656
#14 0x02a9b365 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x9d9da48, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:169
#15 0x02a9bd54 in effectiveSizeHint (constraint=..., which=Qt::MinimumSize, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:818
#16 QGraphicsLayoutItem::effectiveSizeHint (this=0x9b57178, which=Qt::MinimumSize, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:810
#17 0x02ade39c in QGraphicsWidget::sizeHint (this=0x9b58d68, which=Qt::MinimumSize, constraint=...) at graphicsview/qgraphicswidget.cpp:743
#18 0x02a9b417 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x9d9d978, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:175
#19 0x02a9bd54 in effectiveSizeHint (constraint=..., which=Qt::PreferredSize, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:818
#20 QGraphicsLayoutItem::effectiveSizeHint (this=0x9b58d78, which=Qt::PreferredSize, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:810
#21 0x0567d331 in SystemTray::TaskArea::adjustHiddentTasksWidget (this=0x9d9c070) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:452
#22 0x0567f339 in SystemTray::TaskArea::addWidgetForTask (this=0x9d9c070, task=0xaabd8b0) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:320
#23 0x0567f6df in SystemTray::TaskArea::addTask (this=0x9d9c070, task=0xaabd8b0) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#24 0x0567fd8d in SystemTray::TaskArea::qt_metacall (this=0x9d9c070, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbff69b88) at ./taskarea.moc:89
#25 0x03017b7d in metacall (argv=0xbff69b88, idx=23, cl=QMetaObject::InvokeMetaMethod, object=0x9d9c070) at kernel/qmetaobject.cpp:237
#26 QMetaObject::metacall (object=0x9d9c070, cl=QMetaObject::InvokeMetaMethod, idx=23, argv=0xbff69b88) at kernel/qmetaobject.cpp:232
#27 0x03026a6a in QMetaObject::activate (sender=0x8ac43f8, m=0x568c038, local_signal_index=0, argv=0xbff69b88) at kernel/qobject.cpp:3278
#28 0x0565ee85 in SystemTray::Manager::taskAdded (this=0x8ac43f8, _t1=0xaabd8b0) at ./manager.moc:99
#29 0x0565f128 in SystemTray::Manager::addTask (this=0x8ac43f8, task=0xaabd8b0) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:87
#30 0x0565f2cd in SystemTray::Manager::qt_metacall (this=0x8ac43f8, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbff69d08) at ./manager.moc:86
#31 0x03017b7d in metacall (argv=0xbff69d08, idx=7, cl=QMetaObject::InvokeMetaMethod, object=0x8ac43f8) at kernel/qmetaobject.cpp:237
#32 QMetaObject::metacall (object=0x8ac43f8, cl=QMetaObject::InvokeMetaMethod, idx=7, argv=0xbff69d08) at kernel/qmetaobject.cpp:232
#33 0x03026a6a in QMetaObject::activate (sender=0x8b09230, m=0x568c09c, local_signal_index=0, argv=0xbff69d08) at kernel/qobject.cpp:3278
#34 0x0565f875 in SystemTray::Protocol::taskCreated (this=0x8b09230, _t1=0xaabd8b0) at ./protocol.moc:91
#35 0x05667816 in SystemTray::PlasmoidProtocol::addApplet (this=0x8b09230, appletName=..., id=0, parent=0x9b34d10) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:112
#36 0x0565ec29 in SystemTray::Manager::addApplet (this=0x8ac43f8, appletName=..., parent=0x9b34d10) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:110
#37 0x056734fb in SystemTray::Applet::checkDefaultApplets (this=0x9b34d10) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:737
#38 0x056746ac in SystemTray::Applet::qt_metacall (this=0x9b34d10, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x9b48ab0) at ./applet.moc:91
#39 0x03017b7d in metacall (argv=0x9b48ab0, idx=83, cl=QMetaObject::InvokeMetaMethod, object=0x9b34d10) at kernel/qmetaobject.cpp:237
#40 QMetaObject::metacall (object=0x9b34d10, cl=QMetaObject::InvokeMetaMethod, idx=83, argv=0x9b48ab0) at kernel/qmetaobject.cpp:232
#41 0x03022685 in QMetaCallEvent::placeMetaCall (this=0x9b499c0, object=0x9b34d10) at kernel/qobject.cpp:535
#42 0x03029b52 in QObject::event (this=0x9b34d10, e=0x9b499c0) at kernel/qobject.cpp:1217
#43 0x02adebd4 in QGraphicsWidget::event (this=0x9b34d10, event=0x9b499c0) at graphicsview/qgraphicswidget.cpp:1455
#44 0x0241fd54 in notify_helper (e=0x9b499c0, receiver=0x9b34d10, this=0x86eca30) at kernel/qapplication.cpp:4486
#45 QApplicationPrivate::notify_helper (this=0x86eca30, receiver=0x9b34d10, e=0x9b499c0) at kernel/qapplication.cpp:4458
#46 0x02425103 in QApplication::notify (this=0x9b499c0, receiver=0x9b34d10, e=0x9b499c0) at kernel/qapplication.cpp:3886
#47 0x0102d681 in KApplication::notify (this=0x86df1a8, receiver=0x9b34d10, event=0x9b499c0) at ../../kdeui/kernel/kapplication.cpp:311
#48 0x0301119e in QCoreApplication::notifyInternal (this=0x86df1a8, receiver=0x9b34d10, event=0x9b499c0) at kernel/qcoreapplication.cpp:787
#49 0x03014f93 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=0x869b2e0) at kernel/qcoreapplication.cpp:1428
#51 0x030150ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1321
#52 0x0303f6a4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#53 postEventSourceDispatch (s=0x86efa90) at kernel/qeventdispatcher_glib.cpp:277
#54 0x01eef25f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#55 0x01eef990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#56 0x01eefc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#57 0x0303fada in QEventDispatcherGlib::processEvents (this=0x869c218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#58 0x024d7e3a in QGuiEventDispatcherGlib::processEvents (this=0x869c218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#59 0x030101dd in QEventLoop::processEvents (this=0xbff6a5b4, flags=...) at kernel/qeventloop.cpp:149
#60 0x03010421 in QEventLoop::exec (this=0xbff6a5b4, flags=...) at kernel/qeventloop.cpp:201
#61 0x0301519d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#62 0x0241d8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#63 0x0074918b in kdemain (argc=1, argv=0xbff6a7b4) at ../../../../plasma/desktop/shell/main.cpp:120
#64 0x0804850b in main (argc=1, argv=0xbff6a7b4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 289782, bug 289780, bug 289675, bug 289670, bug 289596.

Reported using DrKonqi