Bug 285799

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
Whenever I login Plasma Desktop Shell crashes. The applications I have that run automatically on login (e.g. Skype, Kate, Kopete) still run, so I was able to get a terminal and try running plasma-desktop manually, and I get the same result. The backtrace in this report is from running plasma-desktop from the shell.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb77e1b20 (LWP 2837))]

Thread 3 (Thread 0xb0caeb70 (LWP 2840)):
#0  0x01d3b871 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0x01d3c637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x01d3cc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x018a9b37 in QEventDispatcherGlib::processEvents (this=0x9885d70, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x0187a1dd in QEventLoop::processEvents (this=0xb0cae2a0, flags=...) at kernel/qeventloop.cpp:149
#5  0x0187a421 in QEventLoop::exec (this=0xb0cae2a0, flags=...) at kernel/qeventloop.cpp:201
#6  0x0177d90b in QThread::exec (this=0x98894f0) at thread/qthread.cpp:498
#7  0x0185ae2d in QInotifyFileSystemWatcherEngine::run (this=0x98894f0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x017807b3 in QThreadPrivate::start (arg=0x98894f0) at thread/qthread_unix.cpp:331
#9  0x087add31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#10 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 0xaf4ccb70 (LWP 2841)):
#0  0x04473d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x017d77d5 in do_gettime (frac=0xaf4cc010, sec=0xaf4cc008) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x018aa4b6 in QTimerInfoList::updateCurrentTime (this=0x99b5dbc) at kernel/qeventdispatcher_unix.cpp:339
#4  0x018aa80a in QTimerInfoList::timerWait (this=0x99b5dbc, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x018a9053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xaf4cc11c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x018a90ed in timerSourcePrepare (source=0x99b5d88, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x01d3b88c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x01d3c637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x01d3cc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x018a9b37 in QEventDispatcherGlib::processEvents (this=0x99b5a88, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x0187a1dd in QEventLoop::processEvents (this=0xaf4cc2a0, flags=...) at kernel/qeventloop.cpp:149
#12 0x0187a421 in QEventLoop::exec (this=0xaf4cc2a0, flags=...) at kernel/qeventloop.cpp:201
#13 0x0177d90b in QThread::exec (this=0x947c198) at thread/qthread.cpp:498
#14 0x0185ae2d in QInotifyFileSystemWatcherEngine::run (this=0x947c198) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x017807b3 in QThreadPrivate::start (arg=0x947c198) at thread/qthread_unix.cpp:331
#16 0x087add31 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 1 (Thread 0xb77e1b20 (LWP 2837)):
[KCrash Handler]
#7  QGraphicsLayoutItem::setParentLayoutItem (this=0x99bf1b0, parent=0x0) at graphicsview/qgraphicslayoutitem.cpp:856
#8  0x075e6f47 in QGraphicsGridLayout::removeAt (this=0x9484e60, index=1) at graphicsview/qgraphicsgridlayout.cpp:583
#9  0x04bf6825 in SystemTray::TaskArea::relayoutHiddenTasks (this=0x9497398) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:422
#10 0x04bf6d34 in SystemTray::TaskArea::qt_metacall (this=0x9497398, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbf8e1784) at ./taskarea.moc:93
#11 0x01881b7d in metacall (argv=0xbf8e1784, idx=27, cl=QMetaObject::InvokeMetaMethod, object=0x9497398) at kernel/qmetaobject.cpp:237
#12 QMetaObject::metacall (object=0x9497398, cl=QMetaObject::InvokeMetaMethod, idx=27, argv=0xbf8e1784) at kernel/qmetaobject.cpp:232
#13 0x01890a6a in QMetaObject::activate (sender=0x948de48, m=0x19b25f8, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3278
#14 0x018df7d5 in QTimer::timeout (this=0x948de48) at .moc/release-shared/moc_qtimer.cpp:134
#15 0x01898286 in QTimer::timerEvent (this=0x948de48, e=0xbf8e1b7c) at kernel/qtimer.cpp:271
#16 0x01893994 in QObject::event (this=0x948de48, e=0xbf8e1b7c) at kernel/qobject.cpp:1181
#17 0x06f98d54 in notify_helper (e=0xbf8e1b7c, receiver=0x948de48, this=0x900a658) at kernel/qapplication.cpp:4486
#18 QApplicationPrivate::notify_helper (this=0x900a658, receiver=0x948de48, e=0xbf8e1b7c) at kernel/qapplication.cpp:4458
#19 0x06f9e103 in QApplication::notify (this=0xbf8e1b7c, receiver=0x948de48, e=0xbf8e1b7c) at kernel/qapplication.cpp:3886
#20 0x010f8681 in KApplication::notify (this=0x8fd0e18, receiver=0x948de48, event=0xbf8e1b7c) at ../../kdeui/kernel/kapplication.cpp:311
#21 0x0187b19e in QCoreApplication::notifyInternal (this=0x8fd0e18, receiver=0x948de48, event=0xbf8e1b7c) at kernel/qcoreapplication.cpp:787
#22 0x018abc10 in sendEvent (event=0xbf8e1b7c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#23 QTimerInfoList::activateTimers (this=0x900ca74) at kernel/qeventdispatcher_unix.cpp:603
#24 0x018a9122 in timerSourceDispatch (source=0x900ca40) at kernel/qeventdispatcher_glib.cpp:184
#25 0x01d3c25f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0x01d3c990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0x01d3cc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#28 0x018a9ada in QEventDispatcherGlib::processEvents (this=0x8fa6218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#29 0x07050e3a in QGuiEventDispatcherGlib::processEvents (this=0x8fa6218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#30 0x0187a1dd in QEventLoop::processEvents (this=0xbf8e1df4, flags=...) at kernel/qeventloop.cpp:149
#31 0x0187a421 in QEventLoop::exec (this=0xbf8e1df4, flags=...) at kernel/qeventloop.cpp:201
#32 0x0187f19d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#33 0x06f968f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#34 0x00ec818b in kdemain (argc=1, argv=0xbf8e1ff4) at ../../../../plasma/desktop/shell/main.cpp:120
#35 0x0804850b in main (argc=1, argv=0xbf8e1ff4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 284705, bug 284313, bug 283061.

Reported using DrKonqi