Bug 290280

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:

Just closed a message window and..... !!    Firefox, Skype and Dolphin also active.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb6a60730 (LWP 1642))]

Thread 4 (Thread 0xb0952b70 (LWP 1643)):
#0  0x00380f39 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#1  0x01bf120b in g_main_context_release () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x01bf2906 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x01bf2c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x06df4b37 in QEventDispatcherGlib::processEvents (this=0x88d1dc0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x06dc51dd in QEventLoop::processEvents (this=0xb0952290, flags=...) at kernel/qeventloop.cpp:149
#6  0x06dc5421 in QEventLoop::exec (this=0xb0952290, flags=...) at kernel/qeventloop.cpp:201
#7  0x06cc890b in QThread::exec (this=0x88d0538) at thread/qthread.cpp:498
#8  0x06da5e2d in QInotifyFileSystemWatcherEngine::run (this=0x88d0538) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x06ccb7b3 in QThreadPrivate::start (arg=0x88d0538) at thread/qthread_unix.cpp:331
#10 0x01964d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#11 0x003730ce 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 1644)):
#0  0x00d7fd10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x06d227d5 in do_gettime (frac=0xaf091000, sec=0xaf090ff8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x06df54b6 in QTimerInfoList::updateCurrentTime (this=0x8e15584) at kernel/qeventdispatcher_unix.cpp:339
#4  0x06df580a in QTimerInfoList::timerWait (this=0x8e15584, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x06df4053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xaf09110c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x06df40ed in timerSourcePrepare (source=0x8e15550, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x01bf188c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x01bf2637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x01bf2c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x06df4b37 in QEventDispatcherGlib::processEvents (this=0x8e14db0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x06dc51dd in QEventLoop::processEvents (this=0xaf091290, flags=...) at kernel/qeventloop.cpp:149
#12 0x06dc5421 in QEventLoop::exec (this=0xaf091290, flags=...) at kernel/qeventloop.cpp:201
#13 0x06cc890b in QThread::exec (this=0x8e00e68) at thread/qthread.cpp:498
#14 0x06da5e2d in QInotifyFileSystemWatcherEngine::run (this=0x8e00e68) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x06ccb7b3 in QThreadPrivate::start (arg=0x8e00e68) at thread/qthread_unix.cpp:331
#16 0x01964d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x003730ce 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 1650)):
#0  0x00380ee1 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#1  0x01bf2723 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x01bf2f9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x05ffdcea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#4  0x01c195f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x01964d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x003730ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb6a60730 (LWP 1642)):
[KCrash Handler]
#7  operator== (value=0, this=0x88007) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#8  isNull (this=0x977a19c) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#9  operator! (this=0x977a19c) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#10 TaskManager::TaskItem::task (this=0x98f58b0) at ../../../libs/taskmanager/taskitem.cpp:113
#11 0x045c2662 in WindowTaskItem::publishIconGeometry (this=0x98a1598) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#12 0x045d3688 in AbstractTaskItem::timerEvent (this=0x98a1598, event=0xbf9d476c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#13 0x06dde994 in QObject::event (this=0x98a1598, e=0xbf9d476c) at kernel/qobject.cpp:1181
#14 0x078d2bd4 in QGraphicsWidget::event (this=0x98a1598, event=0xbf9d476c) at graphicsview/qgraphicswidget.cpp:1455
#15 0x07213d54 in notify_helper (e=0xbf9d476c, receiver=0x98a1598, this=0x84348f8) at kernel/qapplication.cpp:4486
#16 QApplicationPrivate::notify_helper (this=0x84348f8, receiver=0x98a1598, e=0xbf9d476c) at kernel/qapplication.cpp:4458
#17 0x07219103 in QApplication::notify (this=0xbf9d476c, receiver=0x98a1598, e=0xbf9d476c) at kernel/qapplication.cpp:3886
#18 0x01186681 in KApplication::notify (this=0x8420120, receiver=0x98a1598, event=0xbf9d476c) at ../../kdeui/kernel/kapplication.cpp:311
#19 0x06dc619e in QCoreApplication::notifyInternal (this=0x8420120, receiver=0x98a1598, event=0xbf9d476c) at kernel/qcoreapplication.cpp:787
#20 0x06df6c10 in sendEvent (event=0xbf9d476c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QTimerInfoList::activateTimers (this=0x8432234) at kernel/qeventdispatcher_unix.cpp:603
#22 0x06df4155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#23 idleTimerSourceDispatch (source=0x8432268) at kernel/qeventdispatcher_glib.cpp:231
#24 0x01bf225f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0x01bf2990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0x01bf2c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0x06df4ada in QEventDispatcherGlib::processEvents (this=0x83e6218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#28 0x072cbe3a in QGuiEventDispatcherGlib::processEvents (this=0x83e6218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0x06dc51dd in QEventLoop::processEvents (this=0xbf9d49e4, flags=...) at kernel/qeventloop.cpp:149
#30 0x06dc5421 in QEventLoop::exec (this=0xbf9d49e4, flags=...) at kernel/qeventloop.cpp:201
#31 0x06dca19d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#32 0x072118f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#33 0x009b418b in kdemain (argc=1, argv=0xbf9d4be4) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x0804850b in main (argc=1, argv=0xbf9d4be4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 290218, bug 290213, bug 290185, bug 290152, bug 290081.

Reported using DrKonqi