Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: I was installing a application "kalam" along with one pdf file is one at same time.

- Unusual behavior I noticed:	window stop or start working slower then usuall.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fd9f42797a0 (LWP 1559))]

Thread 12 (Thread 0x7fd9d1c42700 (LWP 1560)):
#0  0x00007fd9e80dafd2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd9e80dbdfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd9e80dc429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd9f0d42f3e in QEventDispatcherGlib::processEvents (this=0x10bad20, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fd9f0d16cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fd9f0d16ef7 in QEventLoop::exec (this=0x7fd9d1c41db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fd9f0c2e27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fd9f0cf9cbf in QInotifyFileSystemWatcherEngine::run (this=0x10bc280) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fd9f0c30d05 in QThreadPrivate::start (arg=0x10bc280) at thread/qthread_unix.cpp:331
#9  0x00007fd9e8be8efc in start_thread (arg=0x7fd9d1c42700) at pthread_create.c:304
#10 0x00007fd9f3b5d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7fd9cafbf700 (LWP 1561)):
#0  0xffffffffff60014e in ?? ()
#1  0x00007fd9cafbead0 in ?? ()
#2  0x00007fff579ff7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 10 (Thread 0x7fd9c5450700 (LWP 1569)):
#0  0x00007fd9f3b51773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fd9e80dbf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd9e80dc792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd9c5f2e516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fd9e81012b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd9e8be8efc in start_thread (arg=0x7fd9c5450700) at pthread_create.c:304
#6  0x00007fd9f3b5d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7fd9c484e700 (LWP 3151)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd9f0c311ab in wait (time=18446744073709551615, this=0x111f0f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1106dc0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fd9eca2b864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x11b8ad0, th=0x14482f0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fd9eca2de0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x10f1a80, th=0x14482f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fd9eca2de24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x10f1a80, th=0x14482f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fd9eca2cccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fd9c484de00, parent=0x11b8ad0, th=0x14482f0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007fd9eca2cd5b in ThreadWeaver::Thread::run (this=0x14482f0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007fd9f0c30d05 in QThreadPrivate::start (arg=0x14482f0) at thread/qthread_unix.cpp:331
#9  0x00007fd9e8be8efc in start_thread (arg=0x7fd9c484e700) at pthread_create.c:304
#10 0x00007fd9f3b5d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fd9c7c80700 (LWP 3152)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd9f0c311ab in wait (time=18446744073709551615, this=0x111f0f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1106dc0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fd9eca2b864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x11b8ad0, th=0x10ddbc0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fd9eca2de0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x10f1a80, th=0x10ddbc0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fd9eca2de24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x10f1a80, th=0x10ddbc0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fd9eca2cccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fd9c7c7fe00, parent=0x11b8ad0, th=0x10ddbc0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007fd9eca2cd5b in ThreadWeaver::Thread::run (this=0x10ddbc0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007fd9f0c30d05 in QThreadPrivate::start (arg=0x10ddbc0) at thread/qthread_unix.cpp:331
#9  0x00007fd9e8be8efc in start_thread (arg=0x7fd9c7c80700) at pthread_create.c:304
#10 0x00007fd9f3b5d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fd9c5c51700 (LWP 3153)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd9f0c311ab in wait (time=18446744073709551615, this=0x111f0f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1106dc0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fd9eca2b864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x11b8ad0, th=0x15c31e0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fd9eca2de0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x10f1a80, th=0x15c31e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fd9eca2de24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x10f1a80, th=0x15c31e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fd9eca2cccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fd9c5c50e00, parent=0x11b8ad0, th=0x15c31e0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007fd9eca2cd5b in ThreadWeaver::Thread::run (this=0x15c31e0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007fd9f0c30d05 in QThreadPrivate::start (arg=0x15c31e0) at thread/qthread_unix.cpp:331
#9  0x00007fd9e8be8efc in start_thread (arg=0x7fd9c5c51700) at pthread_create.c:304
#10 0x00007fd9f3b5d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fd9c25f3700 (LWP 3154)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd9f0c311ab in wait (time=18446744073709551615, this=0x111f0f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1106dc0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fd9eca2b864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x11b8ad0, th=0x7fd9bc000d20) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fd9eca2de0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x10f1a80, th=0x7fd9bc000d20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fd9eca2cccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fd9c25f2e00, parent=0x11b8ad0, th=0x7fd9bc000d20) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fd9eca2cd5b in ThreadWeaver::Thread::run (this=0x7fd9bc000d20) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fd9f0c30d05 in QThreadPrivate::start (arg=0x7fd9bc000d20) at thread/qthread_unix.cpp:331
#8  0x00007fd9e8be8efc in start_thread (arg=0x7fd9c25f3700) at pthread_create.c:304
#9  0x00007fd9f3b5d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fd9c1df2700 (LWP 3155)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd9f0c311ab in wait (time=18446744073709551615, this=0x111f0f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1106dc0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fd9eca2b864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x11b8ad0, th=0x1b72d50) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fd9eca2de0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x10f1a80, th=0x1b72d50) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fd9eca2cccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fd9c1df1e00, parent=0x11b8ad0, th=0x1b72d50) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fd9eca2cd5b in ThreadWeaver::Thread::run (this=0x1b72d50) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fd9f0c30d05 in QThreadPrivate::start (arg=0x1b72d50) at thread/qthread_unix.cpp:331
#8  0x00007fd9e8be8efc in start_thread (arg=0x7fd9c1df2700) at pthread_create.c:304
#9  0x00007fd9f3b5d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fd9c15f1700 (LWP 3156)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd9f0c311ab in wait (time=18446744073709551615, this=0x111f0f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1106dc0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fd9eca2b864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x11b8ad0, th=0x1bec7a0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fd9eca2de0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x10f1a80, th=0x1bec7a0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fd9eca2cccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fd9c15f0e00, parent=0x11b8ad0, th=0x1bec7a0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fd9eca2cd5b in ThreadWeaver::Thread::run (this=0x1bec7a0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fd9f0c30d05 in QThreadPrivate::start (arg=0x1bec7a0) at thread/qthread_unix.cpp:331
#8  0x00007fd9e8be8efc in start_thread (arg=0x7fd9c15f1700) at pthread_create.c:304
#9  0x00007fd9f3b5d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fd9c0df0700 (LWP 3157)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd9f0c311ab in wait (time=18446744073709551615, this=0x111f0f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1106dc0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fd9eca2b864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x11b8ad0, th=0x9da780) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fd9eca2de0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x10f1a80, th=0x9da780) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fd9eca2cccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fd9c0defe00, parent=0x11b8ad0, th=0x9da780) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fd9eca2cd5b in ThreadWeaver::Thread::run (this=0x9da780) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fd9f0c30d05 in QThreadPrivate::start (arg=0x9da780) at thread/qthread_unix.cpp:331
#8  0x00007fd9e8be8efc in start_thread (arg=0x7fd9c0df0700) at pthread_create.c:304
#9  0x00007fd9f3b5d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fd9bbfff700 (LWP 3158)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd9f0c311ab in wait (time=18446744073709551615, this=0x111f0f0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1106dc0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fd9eca2b864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x11b8ad0, th=0x7fd9b4006f90) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fd9eca2de0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x10f1a80, th=0x7fd9b4006f90) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fd9eca2cccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fd9bbffee00, parent=0x11b8ad0, th=0x7fd9b4006f90) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fd9eca2cd5b in ThreadWeaver::Thread::run (this=0x7fd9b4006f90) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fd9f0c30d05 in QThreadPrivate::start (arg=0x7fd9b4006f90) at thread/qthread_unix.cpp:331
#8  0x00007fd9e8be8efc in start_thread (arg=0x7fd9bbfff700) at pthread_create.c:304
#9  0x00007fd9f3b5d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd9f42797a0 (LWP 1559)):
[KCrash Handler]
#6  operator== (value=0, this=0x10000000d) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#7  isNull (this=0x1beac20) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#8  operator! (this=0x1beac20) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#9  TaskManager::TaskItem::task (this=<optimized out>) at ../../../libs/taskmanager/taskitem.cpp:113
#10 0x00007fd9da2fa112 in WindowTaskItem::publishIconGeometry (this=0x1ac4ab0) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#11 0x00007fd9da308b7c in AbstractTaskItem::timerEvent (this=0x1ac4ab0, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#12 0x00007fd9f0d2e789 in QObject::event (this=0x1ac4ab0, e=<optimized out>) at kernel/qobject.cpp:1181
#13 0x00007fd9f06e689b in QGraphicsWidget::event (this=0x1ac4ab0, event=0x7fff579f72f0) at graphicsview/qgraphicswidget.cpp:1455
#14 0x00007fd9f00c8424 in notify_helper (e=0x7fff579f72f0, receiver=0x1ac4ab0, this=0x9697c0) at kernel/qapplication.cpp:4486
#15 QApplicationPrivate::notify_helper (this=0x9697c0, receiver=0x1ac4ab0, e=0x7fff579f72f0) at kernel/qapplication.cpp:4458
#16 0x00007fd9f00cd291 in QApplication::notify (this=0x95c700, receiver=0x1ac4ab0, e=0x7fff579f72f0) at kernel/qapplication.cpp:4365
#17 0x00007fd9f19c6126 in KApplication::notify (this=0x95c700, receiver=0x1ac4ab0, event=0x7fff579f72f0) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x00007fd9f0d17afc in QCoreApplication::notifyInternal (this=0x95c700, receiver=0x1ac4ab0, event=0x7fff579f72f0) at kernel/qcoreapplication.cpp:787
#19 0x00007fd9f0d44d62 in sendEvent (event=0x7fff579f72f0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x96e650) at kernel/qeventdispatcher_unix.cpp:603
#21 0x00007fd9f0d42514 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#22 0x00007fd9e80dba5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fd9e80dc258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fd9e80dc429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fd9f0d42ed6 in QEventDispatcherGlib::processEvents (this=0x8fdf40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#26 0x00007fd9f017007e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007fd9f0d16cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007fd9f0d16ef7 in QEventLoop::exec (this=0x7fff579f7580, flags=...) at kernel/qeventloop.cpp:201
#29 0x00007fd9f0d1b789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0x00007fd9f3e5c1a3 in kdemain (argc=1, argv=0x7fff579f7968) at ../../../../plasma/desktop/shell/main.cpp:120
#31 0x00007fd9f3a9d30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff579f7968, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff579f7958) at libc-start.c:226
#32 0x0000000000400671 in _start ()

Possible duplicates by query: bug 290717, bug 290686, bug 290664, bug 290597, bug 290581.

Reported using DrKonqi