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:
- What I was doing when the application crashed:

i was using libre office and working on spreed sheet alond with a okular and a firefox page was open and suddenly all the work go crashed.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f406eaf37a0 (LWP 1705))]

Thread 12 (Thread 0x7f404c4b6700 (LWP 1709)):
#0  0x00007f406e3cb773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f4062955f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4062956429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f406b5bcf3e in QEventDispatcherGlib::processEvents (this=0x1f912f0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f406b590cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f406b590ef7 in QEventLoop::exec (this=0x7f404c4b5db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f406b4a827f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f406b573cbf in QInotifyFileSystemWatcherEngine::run (this=0x1f920d0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f406b4aad05 in QThreadPrivate::start (arg=0x1f920d0) at thread/qthread_unix.cpp:331
#9  0x00007f4063462efc in start_thread (arg=0x7f404c4b6700) at pthread_create.c:304
#10 0x00007f406e3d789d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f40499d5700 (LWP 1712)):
#0  0xffffffffff60014c in ?? ()
#1  0x00007f40499d4ad0 in ?? ()
#2  0x00007fff8298b7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 10 (Thread 0x7f403fc1d700 (LWP 1720)):
#0  0x00007f406e3cb773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f4062955f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4062956792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f40406fb516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f406297b2b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4063462efc in start_thread (arg=0x7f403fc1d700) at pthread_create.c:304
#6  0x00007f406e3d789d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f403f01b700 (LWP 9085)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f406b4ab1ab in wait (time=18446744073709551615, this=0x1ff6380) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ff27b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f40672a5864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2090b70, th=0x395c7d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f40672a7e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x395c7d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f40672a6ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f403f01ae00, parent=0x2090b70, th=0x395c7d0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f40672a6d5b in ThreadWeaver::Thread::run (this=0x395c7d0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f406b4aad05 in QThreadPrivate::start (arg=0x395c7d0) at thread/qthread_unix.cpp:331
#8  0x00007f4063462efc in start_thread (arg=0x7f403f01b700) at pthread_create.c:304
#9  0x00007f406e3d789d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f404244d700 (LWP 9086)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f406b4ab1ab in wait (time=18446744073709551615, this=0x1ff6380) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ff27b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f40672a5864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2090b70, th=0x7f4038000b20) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f40672a7e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x7f4038000b20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f40672a6ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f404244ce00, parent=0x2090b70, th=0x7f4038000b20) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f40672a6d5b in ThreadWeaver::Thread::run (this=0x7f4038000b20) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f406b4aad05 in QThreadPrivate::start (arg=0x7f4038000b20) at thread/qthread_unix.cpp:331
#8  0x00007f4063462efc in start_thread (arg=0x7f404244d700) at pthread_create.c:304
#9  0x00007f406e3d789d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f404041e700 (LWP 9087)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f406b4ab1ab in wait (time=18446744073709551615, this=0x1ff6380) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ff27b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f40672a5864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2090b70, th=0x7f40380023a0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f40672a7e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x7f40380023a0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f40672a6ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f404041de00, parent=0x2090b70, th=0x7f40380023a0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f40672a6d5b in ThreadWeaver::Thread::run (this=0x7f40380023a0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f406b4aad05 in QThreadPrivate::start (arg=0x7f40380023a0) at thread/qthread_unix.cpp:331
#8  0x00007f4063462efc in start_thread (arg=0x7f404041e700) at pthread_create.c:304
#9  0x00007f406e3d789d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f4037fff700 (LWP 9088)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f406b4ab1ab in wait (time=18446744073709551615, this=0x1ff6380) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ff27b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f40672a5864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2090b70, th=0x1e650f0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f40672a7e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x1e650f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f40672a7e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x1e650f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f40672a7e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x1e650f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f40672a7e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x1e650f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007f40672a7e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x1e650f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#9  0x00007f40672a6ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f4037ffee00, parent=0x2090b70, th=0x1e650f0) at ../../../threadweaver/Weaver/Thread.cpp:87
#10 0x00007f40672a6d5b in ThreadWeaver::Thread::run (this=0x1e650f0) at ../../../threadweaver/Weaver/Thread.cpp:142
#11 0x00007f406b4aad05 in QThreadPrivate::start (arg=0x1e650f0) at thread/qthread_unix.cpp:331
#12 0x00007f4063462efc in start_thread (arg=0x7f4037fff700) at pthread_create.c:304
#13 0x00007f406e3d789d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f40377fe700 (LWP 9089)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f406b4ab1ab in wait (time=18446744073709551615, this=0x1ff6380) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ff27b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f40672a5864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2090b70, th=0x30061f0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f40672a7e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x30061f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f40672a6ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f40377fde00, parent=0x2090b70, th=0x30061f0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f40672a6d5b in ThreadWeaver::Thread::run (this=0x30061f0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f406b4aad05 in QThreadPrivate::start (arg=0x30061f0) at thread/qthread_unix.cpp:331
#8  0x00007f4063462efc in start_thread (arg=0x7f40377fe700) at pthread_create.c:304
#9  0x00007f406e3d789d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f403207a700 (LWP 13570)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f406b4ab1ab in wait (time=18446744073709551615, this=0x1ff6380) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ff27b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f40672a5864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2090b70, th=0x1a9aee0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f40672a7e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x1a9aee0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f40672a7e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x1a9aee0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f40672a7e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x1a9aee0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f40672a6ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f4032079e00, parent=0x2090b70, th=0x1a9aee0) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007f40672a6d5b in ThreadWeaver::Thread::run (this=0x1a9aee0) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007f406b4aad05 in QThreadPrivate::start (arg=0x1a9aee0) at thread/qthread_unix.cpp:331
#10 0x00007f4063462efc in start_thread (arg=0x7f403207a700) at pthread_create.c:304
#11 0x00007f406e3d789d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f4031879700 (LWP 13571)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f406b4ab1ab in wait (time=18446744073709551615, this=0x1ff6380) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ff27b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f40672a5864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2090b70, th=0x7f403801d1b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f40672a7e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x7f403801d1b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f40672a7e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x7f403801d1b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f40672a6ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f4031878e00, parent=0x2090b70, th=0x7f403801d1b0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f40672a6d5b in ThreadWeaver::Thread::run (this=0x7f403801d1b0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f406b4aad05 in QThreadPrivate::start (arg=0x7f403801d1b0) at thread/qthread_unix.cpp:331
#9  0x00007f4063462efc in start_thread (arg=0x7f4031879700) at pthread_create.c:304
#10 0x00007f406e3d789d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f4031078700 (LWP 13572)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f406b4ab1ab in wait (time=18446744073709551615, this=0x1ff6380) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ff27b0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f40672a5864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2090b70, th=0x251fac0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f40672a7e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ff47b0, th=0x251fac0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f40672a6ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f4031077e00, parent=0x2090b70, th=0x251fac0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f40672a6d5b in ThreadWeaver::Thread::run (this=0x251fac0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f406b4aad05 in QThreadPrivate::start (arg=0x251fac0) at thread/qthread_unix.cpp:331
#8  0x00007f4063462efc in start_thread (arg=0x7f4031078700) at pthread_create.c:304
#9  0x00007f406e3d789d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f406eaf37a0 (LWP 1705)):
[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=0x391a720) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007f4054b6e112 in WindowTaskItem::publishIconGeometry (this=0x2f4a0d0) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#10 0x00007f4054b7cb7c in AbstractTaskItem::timerEvent (this=0x2f4a0d0, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#11 0x00007f406b5a8789 in QObject::event (this=0x2f4a0d0, e=<optimized out>) at kernel/qobject.cpp:1181
#12 0x00007f406af6089b in QGraphicsWidget::event (this=0x2f4a0d0, event=0x7fff828e80c0) at graphicsview/qgraphicswidget.cpp:1455
#13 0x00007f406a942424 in notify_helper (e=0x7fff828e80c0, receiver=0x2f4a0d0, this=0x17591d0) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x17591d0, receiver=0x2f4a0d0, e=0x7fff828e80c0) at kernel/qapplication.cpp:4458
#15 0x00007f406a947291 in QApplication::notify (this=0x174cb10, receiver=0x2f4a0d0, e=0x7fff828e80c0) at kernel/qapplication.cpp:4365
#16 0x00007f406c240126 in KApplication::notify (this=0x174cb10, receiver=0x2f4a0d0, event=0x7fff828e80c0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f406b591afc in QCoreApplication::notifyInternal (this=0x174cb10, receiver=0x2f4a0d0, event=0x7fff828e80c0) at kernel/qcoreapplication.cpp:787
#18 0x00007f406b5bed62 in sendEvent (event=0x7fff828e80c0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QTimerInfoList::activateTimers (this=0x175c0d0) at kernel/qeventdispatcher_unix.cpp:603
#20 0x00007f406b5bc538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#21 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#22 0x00007f4062955a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f4062956258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f4062956429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f406b5bced6 in QEventDispatcherGlib::processEvents (this=0x16edf40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#26 0x00007f406a9ea07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007f406b590cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007f406b590ef7 in QEventLoop::exec (this=0x7fff828e8350, flags=...) at kernel/qeventloop.cpp:201
#29 0x00007f406b595789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0x00007f406e6d61a3 in kdemain (argc=1, argv=0x7fff828e8738) at ../../../../plasma/desktop/shell/main.cpp:120
#31 0x00007f406e31730d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff828e8738, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff828e8728) at libc-start.c:226
#32 0x0000000000400671 in _start ()

Possible duplicates by query: bug 292310, bug 292271, bug 292267, bug 292259, bug 292254.

Reported using DrKonqi