Bug 289651

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:

Surfing using Firefox. Has happened before while using other applications.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb77ddb20 (LWP 1704))]

Thread 3 (Thread 0xb182bb70 (LWP 1758)):
#0  0x00987416 in __kernel_vsyscall ()
#1  0x007c640e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x0670834b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x066f9896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x066f9c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x08818b37 in QEventDispatcherGlib::processEvents (this=0x9bfa510, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x087e91dd in QEventLoop::processEvents (this=0xb182b2a0, flags=...) at kernel/qeventloop.cpp:149
#7  0x087e9421 in QEventLoop::exec (this=0xb182b2a0, flags=...) at kernel/qeventloop.cpp:201
#8  0x086ec90b in QThread::exec (this=0x9bf7778) at thread/qthread.cpp:498
#9  0x087c9e2d in QInotifyFileSystemWatcherEngine::run (this=0x9bf7778) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x086ef7b3 in QThreadPrivate::start (arg=0x9bf7778) at thread/qthread_unix.cpp:331
#11 0x056bed31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x007d50ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xafe12b70 (LWP 1760)):
#0  0x00810b63 in ?? () from /lib/i386-linux-gnu/libc.so.6
#1  0x007e2f28 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x066f887f in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x066f9637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x066f9c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x08818b37 in QEventDispatcherGlib::processEvents (this=0x9d1eca0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x087e91dd in QEventLoop::processEvents (this=0xafe122a0, flags=...) at kernel/qeventloop.cpp:149
#7  0x087e9421 in QEventLoop::exec (this=0xafe122a0, flags=...) at kernel/qeventloop.cpp:201
#8  0x086ec90b in QThread::exec (this=0x9d20ff8) at thread/qthread.cpp:498
#9  0x087c9e2d in QInotifyFileSystemWatcherEngine::run (this=0x9d20ff8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x086ef7b3 in QThreadPrivate::start (arg=0x9d20ff8) at thread/qthread_unix.cpp:331
#11 0x056bed31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x007d50ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb77ddb20 (LWP 1704)):
[KCrash Handler]
#7  operator== (value=0, this=0x9) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#8  isNull (this=0xa5ec0f0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#9  operator! (this=0xa5ec0f0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#10 TaskManager::TaskItem::task (this=0x9e65ef8) at ../../../libs/taskmanager/taskitem.cpp:113
#11 0x03e67662 in WindowTaskItem::publishIconGeometry (this=0xa5983d8) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#12 0x03e78688 in AbstractTaskItem::timerEvent (this=0xa5983d8, event=0xbfa65f7c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#13 0x08802994 in QObject::event (this=0xa5983d8, e=0xbfa65f7c) at kernel/qobject.cpp:1181
#14 0x0725dbd4 in QGraphicsWidget::event (this=0xa5983d8, event=0xbfa65f7c) at graphicsview/qgraphicswidget.cpp:1455
#15 0x06b9ed54 in notify_helper (e=0xbfa65f7c, receiver=0xa5983d8, this=0x9524248) at kernel/qapplication.cpp:4486
#16 QApplicationPrivate::notify_helper (this=0x9524248, receiver=0xa5983d8, e=0xbfa65f7c) at kernel/qapplication.cpp:4458
#17 0x06ba4103 in QApplication::notify (this=0xbfa65f7c, receiver=0xa5983d8, e=0xbfa65f7c) at kernel/qapplication.cpp:3886
#18 0x010e7681 in KApplication::notify (this=0x95190a0, receiver=0xa5983d8, event=0xbfa65f7c) at ../../kdeui/kernel/kapplication.cpp:311
#19 0x087ea19e in QCoreApplication::notifyInternal (this=0x95190a0, receiver=0xa5983d8, event=0xbfa65f7c) at kernel/qcoreapplication.cpp:787
#20 0x0881ac10 in sendEvent (event=0xbfa65f7c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QTimerInfoList::activateTimers (this=0x952670c) at kernel/qeventdispatcher_unix.cpp:603
#22 0x08818155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#23 idleTimerSourceDispatch (source=0x9526740) at kernel/qeventdispatcher_glib.cpp:231
#24 0x066f925f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0x066f9990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0x066f9c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0x08818ada in QEventDispatcherGlib::processEvents (this=0x94d8218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#28 0x06c56e3a in QGuiEventDispatcherGlib::processEvents (this=0x94d8218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0x087e91dd in QEventLoop::processEvents (this=0xbfa661f4, flags=...) at kernel/qeventloop.cpp:149
#30 0x087e9421 in QEventLoop::exec (this=0xbfa661f4, flags=...) at kernel/qeventloop.cpp:201
#31 0x087ee19d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#32 0x06b9c8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#33 0x00b1d18b in kdemain (argc=1, argv=0xbfa663f4) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x0804850b in main (argc=1, argv=0xbfa663f4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 289640, bug 289559, bug 289482, bug 289392, bug 288866.

Reported using DrKonqi