Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-15-generic-pae i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
Crashed when closing Skype call window, no aberrant behavior in Skype or desktop.

Replicable crashes when shutting down. Occurs every time.

Other random crashes.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb1fdfb20 (LWP 1808))]

Thread 4 (Thread 0xab37bb70 (LWP 1810)):
#0  0xb30b5d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb64a17d5 in do_gettime (frac=0xab37b010, sec=0xab37b008) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb65744b6 in QTimerInfoList::updateCurrentTime (this=0x8b1a41c) at kernel/qeventdispatcher_unix.cpp:339
#4  0xb657480a in QTimerInfoList::timerWait (this=0x8b1a41c, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb6573053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xab37b11c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb65730ed in timerSourcePrepare (source=0x8b1a3e8, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb2ffa88c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2ffb637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb2ffbc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb6573b37 in QEventDispatcherGlib::processEvents (this=0x8b1a038, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb65441dd in QEventLoop::processEvents (this=0xab37b2a0, flags=...) at kernel/qeventloop.cpp:149
#12 0xb6544421 in QEventLoop::exec (this=0xab37b2a0, flags=...) at kernel/qeventloop.cpp:201
#13 0xb644790b in QThread::exec (this=0x8ae6510) at thread/qthread.cpp:498
#14 0xb6524e2d in QInotifyFileSystemWatcherEngine::run (this=0x8ae6510) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb644a7b3 in QThreadPrivate::start (arg=0x8ae6510) at thread/qthread_unix.cpp:331
#16 0xb3115d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0xb77280ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xa99d9b70 (LWP 1811)):
#0  0xb3118d50 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb7735f54 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2ffae70 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2ffb8f0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2ffbc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb6573b37 in QEventDispatcherGlib::processEvents (this=0x8c7d2a8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb65441dd in QEventLoop::processEvents (this=0xa99d92a0, flags=...) at kernel/qeventloop.cpp:149
#7  0xb6544421 in QEventLoop::exec (this=0xa99d92a0, flags=...) at kernel/qeventloop.cpp:201
#8  0xb644790b in QThread::exec (this=0x87b18c8) at thread/qthread.cpp:498
#9  0xb6524e2d in QInotifyFileSystemWatcherEngine::run (this=0x87b18c8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb644a7b3 in QThreadPrivate::start (arg=0x87b18c8) at thread/qthread_unix.cpp:331
#11 0xb3115d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb77280ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa738fb70 (LWP 1819)):
#0  0xb2ffab87 in g_main_context_query () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb2ffb664 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb2ffbf9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xa7c6fcea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#4  0xb30225f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb3115d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb77280ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb1fdfb20 (LWP 1808)):
[KCrash Handler]
#7  isNull (this=0x0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#8  operator! (this=0x0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#9  TaskManager::TaskItem::task (this=0x9afe9f8) at ../../../libs/taskmanager/taskitem.cpp:113
#10 0xb0be6662 in WindowTaskItem::publishIconGeometry (this=0x9e7fdd8) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#11 0xb0bf7688 in AbstractTaskItem::timerEvent (this=0x9e7fdd8, event=0xbfd8f6dc) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#12 0xb655d994 in QObject::event (this=0x9e7fdd8, e=0xbfd8f6dc) at kernel/qobject.cpp:1181
#13 0xb612fbd4 in QGraphicsWidget::event (this=0x9e7fdd8, event=0xbfd8f6dc) at graphicsview/qgraphicswidget.cpp:1455
#14 0xb5a70d54 in notify_helper (e=0xbfd8f6dc, receiver=0x9e7fdd8, this=0x8412408) at kernel/qapplication.cpp:4486
#15 QApplicationPrivate::notify_helper (this=0x8412408, receiver=0x9e7fdd8, e=0xbfd8f6dc) at kernel/qapplication.cpp:4458
#16 0xb5a76103 in QApplication::notify (this=0xbfd8f6dc, receiver=0x9e7fdd8, e=0xbfd8f6dc) at kernel/qapplication.cpp:3886
#17 0xb6baa681 in KApplication::notify (this=0x8404538, receiver=0x9e7fdd8, event=0xbfd8f6dc) at ../../kdeui/kernel/kapplication.cpp:311
#18 0xb654519e in QCoreApplication::notifyInternal (this=0x8404538, receiver=0x9e7fdd8, event=0xbfd8f6dc) at kernel/qcoreapplication.cpp:787
#19 0xb6575c10 in sendEvent (event=0xbfd8f6dc, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x84150d4) at kernel/qeventdispatcher_unix.cpp:603
#21 0xb6573122 in timerSourceDispatch (source=0x84150a0) at kernel/qeventdispatcher_glib.cpp:184
#22 0xb2ffb25f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0xb2ffb990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0xb2ffbc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb6573ada in QEventDispatcherGlib::processEvents (this=0x83c5218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#26 0xb5b28e3a in QGuiEventDispatcherGlib::processEvents (this=0x83c5218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0xb65441dd in QEventLoop::processEvents (this=0xbfd8f954, flags=...) at kernel/qeventloop.cpp:149
#28 0xb6544421 in QEventLoop::exec (this=0xbfd8f954, flags=...) at kernel/qeventloop.cpp:201
#29 0xb654919d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0xb5a6e8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#31 0xb781f18b in kdemain (argc=1, argv=0xbfd8fb54) at ../../../../plasma/desktop/shell/main.cpp:120
#32 0x0804850b in main (argc=1, argv=0xbfd8fb54) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 291679, bug 291664, bug 291642, bug 291620, bug 291619.

Reported using DrKonqi