Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.2.0-3-generic i686
Distribution: Ubuntu precise (development branch)

-- Information about the crash:
- What I was doing when the application crashed:

Just using Internet apps (thunderbird 9 and firefox). Conf kubuntu 12.04 Precise alpha1 update dayly

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb5cb7720 (LWP 2463))]

Thread 8 (Thread 0xb4b06b70 (LWP 2465)):
#0  0x03d45733 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0x03d06115 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x03d0692f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x03d06b81 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x0159c797 in QEventDispatcherGlib::processEvents (this=0x89ea158, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x0156cfad in QEventLoop::processEvents (this=0xb4b061f0, flags=...) at kernel/qeventloop.cpp:149
#6  0x0156d1f1 in QEventLoop::exec (this=0xb4b061f0, flags=...) at kernel/qeventloop.cpp:201
#7  0x0147069b in QThread::exec (this=0x89c2138) at thread/qthread.cpp:498
#8  0x0154dbfd in QInotifyFileSystemWatcherEngine::run (this=0x89c2138) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x01473543 in QThreadPrivate::start (arg=0x89c2138) at thread/qthread_unix.cpp:331
#10 0x0442e70c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x00000000 in ?? ()

Thread 7 (Thread 0xadd80b70 (LWP 2468)):
#0  postEventSourcePrepare (s=0x8d4a050, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:266
#1  0x0159bfc7 in postEventSourceCheck (source=0x8d4a050) at kernel/qeventdispatcher_glib.cpp:270
#2  0x03d0642b in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x03d069c2 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x03d06b81 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x0159c797 in QEventDispatcherGlib::processEvents (this=0x8d49468, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x0156cfad in QEventLoop::processEvents (this=0xadd801f0, flags=...) at kernel/qeventloop.cpp:149
#7  0x0156d1f1 in QEventLoop::exec (this=0xadd801f0, flags=...) at kernel/qeventloop.cpp:201
#8  0x0147069b in QThread::exec (this=0x8d15920) at thread/qthread.cpp:498
#9  0x0154dbfd in QInotifyFileSystemWatcherEngine::run (this=0x8d15920) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x01473543 in QThreadPrivate::start (arg=0x8d15920) at thread/qthread_unix.cpp:331
#11 0x0442e70c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0x00000000 in ?? ()

Thread 6 (Thread 0xab675b70 (LWP 2478)):
#0  0x03cd611a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0x03d05bd4 in g_main_context_release () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x03d069d8 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x03d06eeb in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x0829bb8a in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#5  0x03d29ba3 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0x0442e70c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#7  0x00000000 in ?? ()

Thread 5 (Thread 0xaae74b70 (LWP 2901)):
#0  0x00633416 in __kernel_vsyscall ()
#1  0x03a6da5c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x001efd0c in __pthread_cond_wait (cond=0x8c8a918, mutex=0x8c8a900) at forward.c:139
#3  0x01473a50 in wait (time=4294967295, this=0x8c8a900) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x8c4a338, mutex=0x8c0f2b0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00551406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x8c4a320, th=0x983aee0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00553ecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x8c21d20, th=0x983aee0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0055103a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x8c4a320, th=0x983aee0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00553fcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x8c21d20, th=0x983aee0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00550f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8c4a320, th=0x983aee0, previous=0x926ee18) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00552b14 in ThreadWeaver::ThreadRunHelper::run (this=0xaae74254, parent=0x8c4a320, th=0x983aee0) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00552bca in ThreadWeaver::Thread::run (this=0x983aee0) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x01473543 in QThreadPrivate::start (arg=0x983aee0) at thread/qthread_unix.cpp:331
#13 0x0442e70c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#14 0x00000000 in ?? ()

Thread 4 (Thread 0xac677b70 (LWP 2902)):
#0  0x00633416 in __kernel_vsyscall ()
#1  0x03a6da5c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x001efd0c in __pthread_cond_wait (cond=0x8c8a918, mutex=0x8c8a900) at forward.c:139
#3  0x01473a50 in wait (time=4294967295, this=0x8c8a900) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x8c4a338, mutex=0x8c0f2b0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00551406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x8c4a320, th=0xad40ba20) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00553ecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x8c21d20, th=0xad40ba20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0055103a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x8c4a320, th=0xad40ba20) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00553fcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x8c21d20, th=0xad40ba20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00550f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8c4a320, th=0xad40ba20, previous=0x9780740) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00552b14 in ThreadWeaver::ThreadRunHelper::run (this=0xac677254, parent=0x8c4a320, th=0xad40ba20) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00552bca in ThreadWeaver::Thread::run (this=0xad40ba20) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x01473543 in QThreadPrivate::start (arg=0xad40ba20) at thread/qthread_unix.cpp:331
#13 0x0442e70c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#14 0x00000000 in ?? ()

Thread 3 (Thread 0xabe76b70 (LWP 2903)):
#0  0x00633416 in __kernel_vsyscall ()
#1  0x03a6da5c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x001efd0c in __pthread_cond_wait (cond=0x8c8a918, mutex=0x8c8a900) at forward.c:139
#3  0x01473a50 in wait (time=4294967295, this=0x8c8a900) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x8c4a338, mutex=0x8c0f2b0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00551406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x8c4a320, th=0xad407830) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00553ecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x8c21d20, th=0xad407830) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0055103a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x8c4a320, th=0xad407830) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00553fcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x8c21d20, th=0xad407830) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00550f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8c4a320, th=0xad407830, previous=0x98b7af8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00552b14 in ThreadWeaver::ThreadRunHelper::run (this=0xabe76254, parent=0x8c4a320, th=0xad407830) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00552bca in ThreadWeaver::Thread::run (this=0xad407830) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x01473543 in QThreadPrivate::start (arg=0xad407830) at thread/qthread_unix.cpp:331
#13 0x0442e70c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#14 0x00000000 in ?? ()

Thread 2 (Thread 0xaa013b70 (LWP 2904)):
#0  0x00633416 in __kernel_vsyscall ()
#1  0x03a6da5c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x001efd0c in __pthread_cond_wait (cond=0x8c8a918, mutex=0x8c8a900) at forward.c:139
#3  0x01473a50 in wait (time=4294967295, this=0x8c8a900) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x8c4a338, mutex=0x8c0f2b0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00551406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x8c4a320, th=0x9452e48) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00553ecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x8c21d20, th=0x9452e48) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0055103a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x8c4a320, th=0x9452e48) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00553fcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x8c21d20, th=0x9452e48) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00550f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8c4a320, th=0x9452e48, previous=0x8be7498) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00552b14 in ThreadWeaver::ThreadRunHelper::run (this=0xaa013254, parent=0x8c4a320, th=0x9452e48) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00552bca in ThreadWeaver::Thread::run (this=0x9452e48) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x01473543 in QThreadPrivate::start (arg=0x9452e48) at thread/qthread_unix.cpp:331
#13 0x0442e70c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#14 0x00000000 in ?? ()

Thread 1 (Thread 0xb5cb7720 (LWP 2463)):
[KCrash Handler]
#7  isNull (this=0x0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#8  operator! (this=0x0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#9  TaskManager::TaskItem::task (this=0xa0a7bf8) at ../../../libs/taskmanager/taskitem.cpp:113
#10 0x04d7e662 in WindowTaskItem::publishIconGeometry (this=0x9418ee8) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#11 0x04d8f688 in AbstractTaskItem::timerEvent (this=0x9418ee8, event=0xbf8a184c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#12 0x015865f4 in QObject::event (this=0x9418ee8, e=0xbf8a184c) at kernel/qobject.cpp:1181
#13 0x05bbcff4 in QGraphicsWidget::event (this=0x9418ee8, event=0xbf8a184c) at graphicsview/qgraphicswidget.cpp:1455
#14 0x054fe0d4 in notify_helper (e=0xbf8a184c, receiver=0x9418ee8, this=0x856c798) at kernel/qapplication.cpp:4486
#15 QApplicationPrivate::notify_helper (this=0x856c798, receiver=0x9418ee8, e=0xbf8a184c) at kernel/qapplication.cpp:4458
#16 0x05503483 in QApplication::notify (this=0xbf8a184c, receiver=0x9418ee8, e=0xbf8a184c) at kernel/qapplication.cpp:3886
#17 0x011c0681 in KApplication::notify (this=0x85606c0, receiver=0x9418ee8, event=0xbf8a184c) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x0156df6e in QCoreApplication::notifyInternal (this=0x85606c0, receiver=0x9418ee8, event=0xbf8a184c) at kernel/qcoreapplication.cpp:787
#19 0x0159e870 in sendEvent (event=0xbf8a184c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x856c974) at kernel/qeventdispatcher_unix.cpp:603
#21 0x0159bd82 in timerSourceDispatch (source=0x856c940) at kernel/qeventdispatcher_glib.cpp:184
#22 0x03d0669a in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0x03d06aa5 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0x03d06b81 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0x0159c73a in QEventDispatcherGlib::processEvents (this=0x84d7218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#26 0x055b61ba in QGuiEventDispatcherGlib::processEvents (this=0x84d7218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x0156cfad in QEventLoop::processEvents (this=0xbf8a1ab4, flags=...) at kernel/qeventloop.cpp:149
#28 0x0156d1f1 in QEventLoop::exec (this=0xbf8a1ab4, flags=...) at kernel/qeventloop.cpp:201
#29 0x01571dfd in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0x054fbc74 in QApplication::exec () at kernel/qapplication.cpp:3760
#31 0x0048318b in kdemain (argc=1, argv=0xbf8a1cb4) at ../../../../plasma/desktop/shell/main.cpp:120
#32 0x0804850b in main (argc=1, argv=0xbf8a1cb4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 288635, bug 288630, bug 288601, bug 288553, bug 288525.

Reported using DrKonqi