Bug 290686

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-pae i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: I was taking a screenshot. Same thing in gwen when renaming.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb1ef9b20 (LWP 2086))]

Thread 3 (Thread 0xab756b70 (LWP 2088)):
#0  0xb3031dbd in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb764ff14 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2f15723 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2f15c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb648db37 in QEventDispatcherGlib::processEvents (this=0x9a0c488, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0xb645e1dd in QEventLoop::processEvents (this=0xab7562a0, flags=...) at kernel/qeventloop.cpp:149
#6  0xb645e421 in QEventLoop::exec (this=0xab7562a0, flags=...) at kernel/qeventloop.cpp:201
#7  0xb636190b in QThread::exec (this=0x9a114a8) at thread/qthread.cpp:498
#8  0xb643ee2d in QInotifyFileSystemWatcherEngine::run (this=0x9a114a8) at io/qfilesystemwatcher_inotify.cpp:248
#9  0xb63647b3 in QThreadPrivate::start (arg=0x9a114a8) at thread/qthread_unix.cpp:331
#10 0xb302fd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#11 0xb76420ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa8f1cb70 (LWP 2091)):
#0  0xb2fcfd10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb63bb7d5 in do_gettime (frac=0xa8f1c010, sec=0xa8f1c008) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb648e4b6 in QTimerInfoList::updateCurrentTime (this=0x96d574c) at kernel/qeventdispatcher_unix.cpp:339
#4  0xb648e80a in QTimerInfoList::timerWait (this=0x96d574c, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb648d053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa8f1c11c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb648d0ed in timerSourcePrepare (source=0x96d5718, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb2f1488c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2f15637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb2f15c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb648db37 in QEventDispatcherGlib::processEvents (this=0x96f7ee0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb645e1dd in QEventLoop::processEvents (this=0xa8f1c2a0, flags=...) at kernel/qeventloop.cpp:149
#12 0xb645e421 in QEventLoop::exec (this=0xa8f1c2a0, flags=...) at kernel/qeventloop.cpp:201
#13 0xb636190b in QThread::exec (this=0x96d3a90) at thread/qthread.cpp:498
#14 0xb643ee2d in QInotifyFileSystemWatcherEngine::run (this=0x96d3a90) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb63647b3 in QThreadPrivate::start (arg=0x96d3a90) at thread/qthread_unix.cpp:331
#16 0xb302fd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0xb76420ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb1ef9b20 (LWP 2086)):
[KCrash Handler]
#7  operator== (value=0, this=0x9) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#8  isNull (this=0xaa25c58) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#9  operator! (this=0xaa25c58) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#10 TaskManager::TaskItem::task (this=0xa163898) at ../../../libs/taskmanager/taskitem.cpp:113
#11 0xb0ac7662 in WindowTaskItem::publishIconGeometry (this=0xad45608) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#12 0xb0ad8688 in AbstractTaskItem::timerEvent (this=0xad45608, event=0xbf9a074c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#13 0xb6477994 in QObject::event (this=0xad45608, e=0xbf9a074c) at kernel/qobject.cpp:1181
#14 0xb6049bd4 in QGraphicsWidget::event (this=0xad45608, event=0xbf9a074c) at graphicsview/qgraphicswidget.cpp:1455
#15 0xb598ad54 in notify_helper (e=0xbf9a074c, receiver=0xad45608, this=0x92734c0) at kernel/qapplication.cpp:4486
#16 QApplicationPrivate::notify_helper (this=0x92734c0, receiver=0xad45608, e=0xbf9a074c) at kernel/qapplication.cpp:4458
#17 0xb5990103 in QApplication::notify (this=0xbf9a074c, receiver=0xad45608, e=0xbf9a074c) at kernel/qapplication.cpp:3886
#18 0xb6ac4681 in KApplication::notify (this=0x9282238, receiver=0xad45608, event=0xbf9a074c) at ../../kdeui/kernel/kapplication.cpp:311
#19 0xb645f19e in QCoreApplication::notifyInternal (this=0x9282238, receiver=0xad45608, event=0xbf9a074c) at kernel/qcoreapplication.cpp:787
#20 0xb648fc10 in sendEvent (event=0xbf9a074c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QTimerInfoList::activateTimers (this=0x928689c) at kernel/qeventdispatcher_unix.cpp:603
#22 0xb648d155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#23 idleTimerSourceDispatch (source=0x9286d00) at kernel/qeventdispatcher_glib.cpp:231
#24 0xb2f1525f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb2f15990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0xb2f15c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0xb648dada in QEventDispatcherGlib::processEvents (this=0x922f218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#28 0xb5a42e3a in QGuiEventDispatcherGlib::processEvents (this=0x922f218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0xb645e1dd in QEventLoop::processEvents (this=0xbf9a09c4, flags=...) at kernel/qeventloop.cpp:149
#30 0xb645e421 in QEventLoop::exec (this=0xbf9a09c4, flags=...) at kernel/qeventloop.cpp:201
#31 0xb646319d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#32 0xb59888f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#33 0xb773d18b in kdemain (argc=1, argv=0xbf9a0bc4) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x0804850b in main (argc=1, argv=0xbf9a0bc4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 290664, bug 290597, bug 290581, bug 290505, bug 290449.

Reported using DrKonqi