Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
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:

Firefox, Dolphin, Kontact and a Wine app running.  I closed one tab (of 4) in Firefox and plasma crashed.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb6a95730 (LWP 1630))]

Thread 4 (Thread 0xb0987b70 (LWP 1631)):
#0  0x03df8d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x049777d5 in do_gettime (frac=0xb0987000, sec=0xb0986ff8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x04a4a4b6 in QTimerInfoList::updateCurrentTime (this=0xb000067c) at kernel/qeventdispatcher_unix.cpp:339
#4  0x04a4a80a in QTimerInfoList::timerWait (this=0xb000067c, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x04a49053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xb098710c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x04a490ed in timerSourcePrepare (source=0xb0000648, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x06ebe88c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x06ebf637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x06ebfc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x04a49b37 in QEventDispatcherGlib::processEvents (this=0x969cba0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x04a1a1dd in QEventLoop::processEvents (this=0xb0987290, flags=...) at kernel/qeventloop.cpp:149
#12 0x04a1a421 in QEventLoop::exec (this=0xb0987290, flags=...) at kernel/qeventloop.cpp:201
#13 0x0491d90b in QThread::exec (this=0x9666bc8) at thread/qthread.cpp:498
#14 0x049fae2d in QInotifyFileSystemWatcherEngine::run (this=0x9666bc8) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x049207b3 in QThreadPrivate::start (arg=0x9666bc8) at thread/qthread_unix.cpp:331
#16 0x026a4d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x00eaa0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xaf091b70 (LWP 1632)):
#0  0x03df8d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x049777d5 in do_gettime (frac=0xaf091000, sec=0xaf090ff8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x04a4a4b6 in QTimerInfoList::updateCurrentTime (this=0x9c1fa74) at kernel/qeventdispatcher_unix.cpp:339
#4  0x04a4a80a in QTimerInfoList::timerWait (this=0x9c1fa74, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x04a49053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xaf09110c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x04a490ed in timerSourcePrepare (source=0x9c1fa40, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x06ebe88c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x06ebf637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x06ebfc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x04a49b37 in QEventDispatcherGlib::processEvents (this=0x9c1dbb8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x04a1a1dd in QEventLoop::processEvents (this=0xaf091290, flags=...) at kernel/qeventloop.cpp:149
#12 0x04a1a421 in QEventLoop::exec (this=0xaf091290, flags=...) at kernel/qeventloop.cpp:201
#13 0x0491d90b in QThread::exec (this=0x9c070d0) at thread/qthread.cpp:498
#14 0x049fae2d in QInotifyFileSystemWatcherEngine::run (this=0x9c070d0) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x049207b3 in QThreadPrivate::start (arg=0x9c070d0) at thread/qthread_unix.cpp:331
#16 0x026a4d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x00eaa0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xad83cb70 (LWP 1638)):
#0  0x00eb80c7 in ?? () from /lib/i386-linux-gnu/libc.so.6
#1  0x00e9b3f7 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x06ece34b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x06ebf896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x06ebff9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x0524ccea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0x06ee65f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x026a4d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x00eaa0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb6a95730 (LWP 1630)):
[KCrash Handler]
#7  operator== (value=0, this=0x9) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#8  isNull (this=0xa13fa18) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#9  operator! (this=0xa13fa18) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#10 TaskManager::TaskItem::task (this=0xa3ea710) at ../../../libs/taskmanager/taskitem.cpp:113
#11 0x08614662 in WindowTaskItem::publishIconGeometry (this=0x9ef78f0) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#12 0x08625688 in AbstractTaskItem::timerEvent (this=0x9ef78f0, event=0xbfed0f8c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#13 0x04a33994 in QObject::event (this=0x9ef78f0, e=0xbfed0f8c) at kernel/qobject.cpp:1181
#14 0x01ba3bd4 in QGraphicsWidget::event (this=0x9ef78f0, event=0xbfed0f8c) at graphicsview/qgraphicswidget.cpp:1455
#15 0x014e4d54 in notify_helper (e=0xbfed0f8c, receiver=0x9ef78f0, this=0x922a698) at kernel/qapplication.cpp:4486
#16 QApplicationPrivate::notify_helper (this=0x922a698, receiver=0x9ef78f0, e=0xbfed0f8c) at kernel/qapplication.cpp:4458
#17 0x014ea103 in QApplication::notify (this=0xbfed0f8c, receiver=0x9ef78f0, e=0xbfed0f8c) at kernel/qapplication.cpp:3886
#18 0x0113b681 in KApplication::notify (this=0x921dad0, receiver=0x9ef78f0, event=0xbfed0f8c) at ../../kdeui/kernel/kapplication.cpp:311
#19 0x04a1b19e in QCoreApplication::notifyInternal (this=0x921dad0, receiver=0x9ef78f0, event=0xbfed0f8c) at kernel/qcoreapplication.cpp:787
#20 0x04a4bc10 in sendEvent (event=0xbfed0f8c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QTimerInfoList::activateTimers (this=0x922dcc4) at kernel/qeventdispatcher_unix.cpp:603
#22 0x04a49155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#23 idleTimerSourceDispatch (source=0x922dcf8) at kernel/qeventdispatcher_glib.cpp:231
#24 0x06ebf25f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0x06ebf990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0x06ebfc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0x04a49ada in QEventDispatcherGlib::processEvents (this=0x91e1218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#28 0x0159ce3a in QGuiEventDispatcherGlib::processEvents (this=0x91e1218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0x04a1a1dd in QEventLoop::processEvents (this=0xbfed1204, flags=...) at kernel/qeventloop.cpp:149
#30 0x04a1a421 in QEventLoop::exec (this=0xbfed1204, flags=...) at kernel/qeventloop.cpp:201
#31 0x04a1f19d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#32 0x014e28f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#33 0x0021118b in kdemain (argc=1, argv=0xbfed1404) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x0804850b in main (argc=1, argv=0xbfed1404) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 289482, bug 289392, bug 288866, bug 288759, bug 288635.

Reported using DrKonqi