Bug 290101

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3) (Compiled from sources)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
Plasma crash when I try to connect to the internet, view youtube,s videos, chat with pidgin and listen music in grooveshark.

The crash can be reproduced every time.

-- Backtrace:
Application: Shell de escritorio Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb76eeb20 (LWP 1692))]

Thread 4 (Thread 0xb123bb70 (LWP 1694)):
#0  0x01d2b9f7 in __i686.get_pc_thunk.bx () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#1  0x01d489cc in QThreadData::current () at thread/qthread_unix.cpp:209
#2  0x01e722f7 in postEventSourcePrepare (s=0xa5a1548, timeout=0xb123b11c) at kernel/qeventdispatcher_glib.cpp:254
#3  0x0379688c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x03797637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x03797c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0x01e72b37 in QEventDispatcherGlib::processEvents (this=0xa5a1258, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#7  0x01e431dd in QEventLoop::processEvents (this=0xb123b2a0, flags=...) at kernel/qeventloop.cpp:149
#8  0x01e43421 in QEventLoop::exec (this=0xb123b2a0, flags=...) at kernel/qeventloop.cpp:201
#9  0x01d4690b in QThread::exec (this=0xa59fab0) at thread/qthread.cpp:498
#10 0x01e23e2d in QInotifyFileSystemWatcherEngine::run (this=0xa59fab0) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x01d497b3 in QThreadPrivate::start (arg=0xa59fab0) at thread/qthread_unix.cpp:331
#12 0x01c9dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#13 0x00ee10ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xaf93fb70 (LWP 1695)):
#0  0x03797936 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0x03797c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x01e72b37 in QEventDispatcherGlib::processEvents (this=0x9eaa930, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#3  0x01e431dd in QEventLoop::processEvents (this=0xaf93f2a0, flags=...) at kernel/qeventloop.cpp:149
#4  0x01e43421 in QEventLoop::exec (this=0xaf93f2a0, flags=...) at kernel/qeventloop.cpp:201
#5  0x01d4690b in QThread::exec (this=0xa6d9c90) at thread/qthread.cpp:498
#6  0x01e23e2d in QInotifyFileSystemWatcherEngine::run (this=0xa6d9c90) at io/qfilesystemwatcher_inotify.cpp:248
#7  0x01d497b3 in QThreadPrivate::start (arg=0xa6d9c90) at thread/qthread_unix.cpp:331
#8  0x01c9dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#9  0x00ee10ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xad931b70 (LWP 1703)):
#0  0x006f0416 in __kernel_vsyscall ()
#1  0x00ed240e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x037a634b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x03797896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x03797f9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x0603ecea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0x037be5f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x01c9dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x00ee10ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb76eeb20 (LWP 1692)):
[KCrash Handler]
#7  isNull (this=0x1) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#8  operator! (this=0x1) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#9  TaskManager::TaskItem::task (this=0xb829f08) at ../../../libs/taskmanager/taskitem.cpp:113
#10 0x09831662 in WindowTaskItem::publishIconGeometry (this=0xb408600) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#11 0x09842688 in AbstractTaskItem::timerEvent (this=0xb408600, event=0xbfb5159c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#12 0x01e5c994 in QObject::event (this=0xb408600, e=0xbfb5159c) at kernel/qobject.cpp:1181
#13 0x04217bd4 in QGraphicsWidget::event (this=0xb408600, event=0xbfb5159c) at graphicsview/qgraphicswidget.cpp:1455
#14 0x03b58d54 in notify_helper (e=0xbfb5159c, receiver=0xb408600, this=0x9da2e10) at kernel/qapplication.cpp:4486
#15 QApplicationPrivate::notify_helper (this=0x9da2e10, receiver=0xb408600, e=0xbfb5159c) at kernel/qapplication.cpp:4458
#16 0x03b5e103 in QApplication::notify (this=0xbfb5159c, receiver=0xb408600, e=0xbfb5159c) at kernel/qapplication.cpp:3886
#17 0x01172681 in KApplication::notify (this=0x9d96dd8, receiver=0xb408600, event=0xbfb5159c) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x01e4419e in QCoreApplication::notifyInternal (this=0x9d96dd8, receiver=0xb408600, event=0xbfb5159c) at kernel/qcoreapplication.cpp:787
#19 0x01e74c10 in sendEvent (event=0xbfb5159c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x9da6664) at kernel/qeventdispatcher_unix.cpp:603
#21 0x01e72155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#22 idleTimerSourceDispatch (source=0x9da5f70) at kernel/qeventdispatcher_glib.cpp:231
#23 0x0379725f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0x03797990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0x03797c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0x01e72ada in QEventDispatcherGlib::processEvents (this=0x9d53218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#27 0x03c10e3a in QGuiEventDispatcherGlib::processEvents (this=0x9d53218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x01e431dd in QEventLoop::processEvents (this=0xbfb51814, flags=...) at kernel/qeventloop.cpp:149
#29 0x01e43421 in QEventLoop::exec (this=0xbfb51814, flags=...) at kernel/qeventloop.cpp:201
#30 0x01e4819d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#31 0x03b568f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#32 0x0014518b in kdemain (argc=1, argv=0xbfb51a14) at ../../../../plasma/desktop/shell/main.cpp:120
#33 0x0804850b in main (argc=1, argv=0xbfb51a14) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 290081, bug 290071, bug 290032, bug 290030, bug 290004.

Reported using DrKonqi