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:
normal using of my computer. Firefox, Thunderbird, Dolphin

The crash can be reproduced every time.

-- Backtrace:
Application: Shell del desktop di Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb1e9fb20 (LWP 1875))]

Thread 4 (Thread 0xb01ffb70 (LWP 1880)):
#0  0xb772e424 in __kernel_vsyscall ()
#1  0xb75d940e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2eca34b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2ebb896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2ebbf9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb146acea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb2ee25f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb2fd5d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb75e80ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xa8f6db70 (LWP 1881)):
#0  0xb2f75d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb63617d5 in do_gettime (frac=0xa8f6d010, sec=0xa8f6d008) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb64344b6 in QTimerInfoList::updateCurrentTime (this=0xb020acac) at kernel/qeventdispatcher_unix.cpp:339
#4  0xb643480a in QTimerInfoList::timerWait (this=0xb020acac, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb6433053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa8f6d11c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb64330ed in timerSourcePrepare (source=0xb020ac78, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb2eba88c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2ebb637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb2ebbc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb6433b37 in QEventDispatcherGlib::processEvents (this=0xa582bf8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb64041dd in QEventLoop::processEvents (this=0xa8f6d2a0, flags=...) at kernel/qeventloop.cpp:149
#12 0xb6404421 in QEventLoop::exec (this=0xa8f6d2a0, flags=...) at kernel/qeventloop.cpp:201
#13 0xb630790b in QThread::exec (this=0xa581488) at thread/qthread.cpp:498
#14 0xb63e4e2d in QInotifyFileSystemWatcherEngine::run (this=0xa581488) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb630a7b3 in QThreadPrivate::start (arg=0xa581488) at thread/qthread_unix.cpp:331
#16 0xb2fd5d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0xb75e80ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa75d9b70 (LWP 1882)):
#0  0xb2f75d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb63617d5 in do_gettime (frac=0xa75d9010, sec=0xa75d9008) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb64344b6 in QTimerInfoList::updateCurrentTime (this=0xa5e4b64) at kernel/qeventdispatcher_unix.cpp:339
#4  0xb643480a in QTimerInfoList::timerWait (this=0xa5e4b64, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb6433053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa75d911c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb64330ed in timerSourcePrepare (source=0xa5e4b30, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb2eba88c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2ebb637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb2ebbc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb6433b37 in QEventDispatcherGlib::processEvents (this=0xa5e8be0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb64041dd in QEventLoop::processEvents (this=0xa75d92a0, flags=...) at kernel/qeventloop.cpp:149
#12 0xb6404421 in QEventLoop::exec (this=0xa75d92a0, flags=...) at kernel/qeventloop.cpp:201
#13 0xb630790b in QThread::exec (this=0xa5db908) at thread/qthread.cpp:498
#14 0xb63e4e2d in QInotifyFileSystemWatcherEngine::run (this=0xa5db908) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb630a7b3 in QThreadPrivate::start (arg=0xa5db908) at thread/qthread_unix.cpp:331
#16 0xb2fd5d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0xb75e80ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb1e9fb20 (LWP 1875)):
[KCrash Handler]
#7  isNull (this=0x2200c8) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#8  operator! (this=0x2200c8) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#9  TaskManager::TaskItem::task (this=0xad39008) at ../../../libs/taskmanager/taskitem.cpp:113
#10 0xae7d2662 in WindowTaskItem::publishIconGeometry (this=0xac59968) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#11 0xae7e3688 in AbstractTaskItem::timerEvent (this=0xac59968, event=0xbf8b974c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#12 0xb641d994 in QObject::event (this=0xac59968, e=0xbf8b974c) at kernel/qobject.cpp:1181
#13 0xb5fefbd4 in QGraphicsWidget::event (this=0xac59968, event=0xbf8b974c) at graphicsview/qgraphicswidget.cpp:1455
#14 0xb5930d54 in notify_helper (e=0xbf8b974c, receiver=0xac59968, this=0x9d665b8) at kernel/qapplication.cpp:4486
#15 QApplicationPrivate::notify_helper (this=0x9d665b8, receiver=0xac59968, e=0xbf8b974c) at kernel/qapplication.cpp:4458
#16 0xb5936103 in QApplication::notify (this=0xbf8b974c, receiver=0xac59968, e=0xbf8b974c) at kernel/qapplication.cpp:3886
#17 0xb6a6a681 in KApplication::notify (this=0x9d5dab0, receiver=0xac59968, event=0xbf8b974c) at ../../kdeui/kernel/kapplication.cpp:311
#18 0xb640519e in QCoreApplication::notifyInternal (this=0x9d5dab0, receiver=0xac59968, event=0xbf8b974c) at kernel/qcoreapplication.cpp:787
#19 0xb6435c10 in sendEvent (event=0xbf8b974c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x9d6b534) at kernel/qeventdispatcher_unix.cpp:603
#21 0xb6433155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#22 idleTimerSourceDispatch (source=0x9d6b568) at kernel/qeventdispatcher_glib.cpp:231
#23 0xb2ebb25f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0xb2ebb990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb2ebbc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0xb6433ada in QEventDispatcherGlib::processEvents (this=0x9d16230, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#27 0xb59e8e3a in QGuiEventDispatcherGlib::processEvents (this=0x9d16230, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#28 0xb64041dd in QEventLoop::processEvents (this=0xbf8b99c4, flags=...) at kernel/qeventloop.cpp:149
#29 0xb6404421 in QEventLoop::exec (this=0xbf8b99c4, flags=...) at kernel/qeventloop.cpp:201
#30 0xb640919d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#31 0xb592e8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#32 0xb76e318b in kdemain (argc=1, argv=0xbf8b9bc4) at ../../../../plasma/desktop/shell/main.cpp:120
#33 0x0804850b in main (argc=1, argv=0xbf8b9bc4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 292186, bug 292177, bug 292153, bug 292112, bug 292104.

Reported using DrKonqi