Bug 292026

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:
Problem KDE4

LENOVO T510i

The crash can be reproduced every time.

-- Backtrace:
Application: Powłoka pulpitu Plazmy (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb787eb20 (LWP 1564))]

Thread 4 (Thread 0xb1642b70 (LWP 1566)):
#0  0x001eff48 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#1  0x05ca987f in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x05caa637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x05caac2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x0795eb37 in QEventDispatcherGlib::processEvents (this=0x88f2348, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x0792f1dd in QEventLoop::processEvents (this=0xb16422a0, flags=...) at kernel/qeventloop.cpp:149
#6  0x0792f421 in QEventLoop::exec (this=0xb16422a0, flags=...) at kernel/qeventloop.cpp:201
#7  0x0783290b in QThread::exec (this=0x88ef070) at thread/qthread.cpp:498
#8  0x0790fe2d in QInotifyFileSystemWatcherEngine::run (this=0x88ef070) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x078357b3 in QThreadPrivate::start (arg=0x88ef070) at thread/qthread_unix.cpp:331
#10 0x0183ad31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#11 0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xafd3fb70 (LWP 1579)):
#0  0x00973416 in __kernel_vsyscall ()
#1  0x001d340e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x05cb934b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x05caa896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x05caac2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x0795eb37 in QEventDispatcherGlib::processEvents (this=0x83a8770, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x0792f1dd in QEventLoop::processEvents (this=0xafd3f2a0, flags=...) at kernel/qeventloop.cpp:149
#7  0x0792f421 in QEventLoop::exec (this=0xafd3f2a0, flags=...) at kernel/qeventloop.cpp:201
#8  0x0783290b in QThread::exec (this=0x83a8838) at thread/qthread.cpp:498
#9  0x0790fe2d in QInotifyFileSystemWatcherEngine::run (this=0x83a8838) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x078357b3 in QThreadPrivate::start (arg=0x83a8838) at thread/qthread_unix.cpp:331
#11 0x0183ad31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xadabdb70 (LWP 1587)):
#0  0x00973416 in __kernel_vsyscall ()
#1  0x001d340e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x05cb934b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x05caa896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x05caaf9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x058dacea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0x05cd15f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x0183ad31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb787eb20 (LWP 1564)):
[KCrash Handler]
#7  isNull (this=0xf) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#8  operator! (this=0xf) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#9  TaskManager::TaskItem::task (this=0x8aa03c0) at ../../../libs/taskmanager/taskitem.cpp:113
#10 0x04807662 in WindowTaskItem::publishIconGeometry (this=0x8b83a90) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#11 0x04818688 in AbstractTaskItem::timerEvent (this=0x8b83a90, event=0xbfaed8fc) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#12 0x07948994 in QObject::event (this=0x8b83a90, e=0xbfaed8fc) at kernel/qobject.cpp:1181
#13 0x07001bd4 in QGraphicsWidget::event (this=0x8b83a90, event=0xbfaed8fc) at graphicsview/qgraphicswidget.cpp:1455
#14 0x06942d54 in notify_helper (e=0xbfaed8fc, receiver=0x8b83a90, this=0x81b5ff8) at kernel/qapplication.cpp:4486
#15 QApplicationPrivate::notify_helper (this=0x81b5ff8, receiver=0x8b83a90, e=0xbfaed8fc) at kernel/qapplication.cpp:4458
#16 0x06948103 in QApplication::notify (this=0xbfaed8fc, receiver=0x8b83a90, e=0xbfaed8fc) at kernel/qapplication.cpp:3886
#17 0x011a9681 in KApplication::notify (this=0x81ac650, receiver=0x8b83a90, event=0xbfaed8fc) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x0793019e in QCoreApplication::notifyInternal (this=0x81ac650, receiver=0x8b83a90, event=0xbfaed8fc) at kernel/qcoreapplication.cpp:787
#19 0x07960c10 in sendEvent (event=0xbfaed8fc, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x81b82c4) at kernel/qeventdispatcher_unix.cpp:603
#21 0x0795e155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#22 idleTimerSourceDispatch (source=0x81b85e0) at kernel/qeventdispatcher_glib.cpp:231
#23 0x05caa25f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0x05caa990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0x05caac2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0x0795eada in QEventDispatcherGlib::processEvents (this=0x8165218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#27 0x069fae3a in QGuiEventDispatcherGlib::processEvents (this=0x8165218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x0792f1dd in QEventLoop::processEvents (this=0xbfaedb74, flags=...) at kernel/qeventloop.cpp:149
#29 0x0792f421 in QEventLoop::exec (this=0xbfaedb74, flags=...) at kernel/qeventloop.cpp:201
#30 0x0793419d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#31 0x069408f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#32 0x002f118b in kdemain (argc=1, argv=0xbfaedd74) at ../../../../plasma/desktop/shell/main.cpp:120
#33 0x0804850b in main (argc=1, argv=0xbfaedd74) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 292003, bug 292002, bug 291986, bug 291974, bug 291943.

Reported using DrKonqi