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 x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
My KDE desktop crashed with firefox after i've executed a java applet. I don't know if desktop crash for the applet or is a conseguence of the firefox crash

-- Backtrace:
Application: Shell del desktop di Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f07adb777a0 (LWP 1667))]

Thread 7 (Thread 0x7f078b2e8700 (LWP 1668)):
#0  0x00007f07a19dd687 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f07a19ded81 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07a19df429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07aa645f3e in QEventDispatcherGlib::processEvents (this=0x2e54ac0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f07aa619cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f07aa619ef7 in QEventLoop::exec (this=0x7f078b2e7db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f07aa53127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f07aa5fccbf in QInotifyFileSystemWatcherEngine::run (this=0x2e51f00) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f07aa533d05 in QThreadPrivate::start (arg=0x2e51f00) at thread/qthread_unix.cpp:331
#9  0x00007f07a24ebefc in start_thread (arg=0x7f078b2e8700) at pthread_create.c:304
#10 0x00007f07ad46089d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f0788914700 (LWP 1669)):
#0  0x00007f07ad454773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f07a19def68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f07a19df429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f07aa645f3e in QEventDispatcherGlib::processEvents (this=0x30041e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f07aa619cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f07aa619ef7 in QEventLoop::exec (this=0x7f0788913db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f07aa53127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f07aa5fccbf in QInotifyFileSystemWatcherEngine::run (this=0x27179b0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f07aa533d05 in QThreadPrivate::start (arg=0x27179b0) at thread/qthread_unix.cpp:331
#9  0x00007f07a24ebefc in start_thread (arg=0x7f0788914700) at pthread_create.c:304
#10 0x00007f07ad46089d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f077fb85700 (LWP 1919)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f07aa5341ab in wait (time=18446744073709551615, this=0x2e80ff0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2e8a360, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f07a632e864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2ea5870, th=0x2d5abb0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f07a6330e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2e7f1d0, th=0x2d5abb0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f07a632fccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f077fb84e00, parent=0x2ea5870, th=0x2d5abb0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f07a632fd5b in ThreadWeaver::Thread::run (this=0x2d5abb0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f07aa533d05 in QThreadPrivate::start (arg=0x2d5abb0) at thread/qthread_unix.cpp:331
#8  0x00007f07a24ebefc in start_thread (arg=0x7f077fb85700) at pthread_create.c:304
#9  0x00007f07ad46089d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f07812a4700 (LWP 1920)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f07aa5341ab in wait (time=18446744073709551615, this=0x2e80ff0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2e8a360, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f07a632e864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2ea5870, th=0x3280ee0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f07a6330e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2e7f1d0, th=0x3280ee0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f07a632fccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f07812a3e00, parent=0x2ea5870, th=0x3280ee0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f07a632fd5b in ThreadWeaver::Thread::run (this=0x3280ee0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f07aa533d05 in QThreadPrivate::start (arg=0x3280ee0) at thread/qthread_unix.cpp:331
#8  0x00007f07a24ebefc in start_thread (arg=0x7f07812a4700) at pthread_create.c:304
#9  0x00007f07ad46089d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f077d7c5700 (LWP 1921)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f07aa5341ab in wait (time=18446744073709551615, this=0x2e80ff0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2e8a360, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f07a632e864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2ea5870, th=0x2d3ad40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f07a6330e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2e7f1d0, th=0x2d3ad40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f07a632fccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f077d7c4e00, parent=0x2ea5870, th=0x2d3ad40) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f07a632fd5b in ThreadWeaver::Thread::run (this=0x2d3ad40) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f07aa533d05 in QThreadPrivate::start (arg=0x2d3ad40) at thread/qthread_unix.cpp:331
#8  0x00007f07a24ebefc in start_thread (arg=0x7f077d7c5700) at pthread_create.c:304
#9  0x00007f07ad46089d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f077cfc4700 (LWP 1922)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f07aa5341ab in wait (time=18446744073709551615, this=0x2e80ff0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2e8a360, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f07a632e864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2ea5870, th=0x7f078406d8e0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f07a6330e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2e7f1d0, th=0x7f078406d8e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f07a6330e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2e7f1d0, th=0x7f078406d8e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f07a6330e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2e7f1d0, th=0x7f078406d8e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f07a632fccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f077cfc3e00, parent=0x2ea5870, th=0x7f078406d8e0) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007f07a632fd5b in ThreadWeaver::Thread::run (this=0x7f078406d8e0) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007f07aa533d05 in QThreadPrivate::start (arg=0x7f078406d8e0) at thread/qthread_unix.cpp:331
#10 0x00007f07a24ebefc in start_thread (arg=0x7f077cfc4700) at pthread_create.c:304
#11 0x00007f07ad46089d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f07adb777a0 (LWP 1667)):
[KCrash Handler]
#6  isNull (this=0x0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#7  operator! (this=0x0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#8  TaskManager::TaskItem::task (this=0x4461870) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007f0793d62112 in WindowTaskItem::publishIconGeometry (this=0x43e8730) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#10 0x00007f0793d70b7c in AbstractTaskItem::timerEvent (this=0x43e8730, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#11 0x00007f07aa631789 in QObject::event (this=0x43e8730, e=<optimized out>) at kernel/qobject.cpp:1181
#12 0x00007f07a9fe989b in QGraphicsWidget::event (this=0x43e8730, event=0x7fffe63231d0) at graphicsview/qgraphicswidget.cpp:1455
#13 0x00007f07a99cb424 in notify_helper (e=0x7fffe63231d0, receiver=0x43e8730, this=0x247e980) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x247e980, receiver=0x43e8730, e=0x7fffe63231d0) at kernel/qapplication.cpp:4458
#15 0x00007f07a99d0291 in QApplication::notify (this=0x2471410, receiver=0x43e8730, e=0x7fffe63231d0) at kernel/qapplication.cpp:4365
#16 0x00007f07ab2c9126 in KApplication::notify (this=0x2471410, receiver=0x43e8730, event=0x7fffe63231d0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f07aa61aafc in QCoreApplication::notifyInternal (this=0x2471410, receiver=0x43e8730, event=0x7fffe63231d0) at kernel/qcoreapplication.cpp:787
#18 0x00007f07aa647d62 in sendEvent (event=0x7fffe63231d0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QTimerInfoList::activateTimers (this=0x24855a0) at kernel/qeventdispatcher_unix.cpp:603
#20 0x00007f07aa645514 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#21 0x00007f07a19dea5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f07a19df258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f07a19df429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f07aa645ed6 in QEventDispatcherGlib::processEvents (this=0x2409f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#25 0x00007f07a9a7307e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007f07aa619cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007f07aa619ef7 in QEventLoop::exec (this=0x7fffe6323460, flags=...) at kernel/qeventloop.cpp:201
#28 0x00007f07aa61e789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#29 0x00007f07ad75f1a3 in kdemain (argc=1, argv=0x7fffe6323848) at ../../../../plasma/desktop/shell/main.cpp:120
#30 0x00007f07ad3a030d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffe6323848, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffe6323838) at libc-start.c:226
#31 0x0000000000400671 in _start ()

Possible duplicates by query: bug 291392, bug 291377, bug 291373, bug 291338, bug 291334.

Reported using DrKonqi