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: Using KTorrent and FrostWire. Actually I was begining a transfer using ktorren

- Unusual behavior I noticed: Something happened to java, since a "Java EmbeddedFrame" appeared on the task bar. However this was not closable and Frostwire apparently works fine.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fcc9397a7c0 (LWP 1706))]

Thread 8 (Thread 0x7fcc6f764700 (LWP 1707)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007fcc6f7639f0 in ?? ()
#2  0x00007fff441f47e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 7 (Thread 0x7fcc6cf2f700 (LWP 1708)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007fcc6cf2e9f0 in ?? ()
#2  0x00007fff441f47e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 6 (Thread 0x7fcc643d8700 (LWP 1715)):
#0  0x00007fcc93257773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fcc877e1f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc877e2792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc64eb6516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fcc878072b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcc84afb56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007fcc882eeefc in start_thread (arg=0x7fcc643d8700) at pthread_create.c:304
#7  0x00007fcc9326389d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fcc63118700 (LWP 2186)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fcc903371ab in wait (time=18446744073709551615, this=0x1f09b30) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1eacb30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fcc8c131864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1f4d2b0, th=0x2289bf0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fcc8c133e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1eacf10, th=0x2289bf0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fcc8c132ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fcc63117d20, parent=0x1f4d2b0, th=0x2289bf0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fcc8c132d5b in ThreadWeaver::Thread::run (this=0x2289bf0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fcc90336d05 in QThreadPrivate::start (arg=0x2289bf0) at thread/qthread_unix.cpp:331
#8  0x00007fcc84afb56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007fcc882eeefc in start_thread (arg=0x7fcc63118700) at pthread_create.c:304
#10 0x00007fcc9326389d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fcc64bd9700 (LWP 2187)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fcc903371ab in wait (time=18446744073709551615, this=0x1f09b30) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1eacb30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fcc8c131864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1f4d2b0, th=0x2ac27d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fcc8c133e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1eacf10, th=0x2ac27d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fcc8c133e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1eacf10, th=0x2ac27d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fcc8c132ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fcc64bd8d20, parent=0x1f4d2b0, th=0x2ac27d0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007fcc8c132d5b in ThreadWeaver::Thread::run (this=0x2ac27d0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007fcc90336d05 in QThreadPrivate::start (arg=0x2ac27d0) at thread/qthread_unix.cpp:331
#9  0x00007fcc84afb56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007fcc882eeefc in start_thread (arg=0x7fcc64bd9700) at pthread_create.c:304
#11 0x00007fcc9326389d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fcc60615700 (LWP 2188)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fcc903371ab in wait (time=18446744073709551615, this=0x1f09b30) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1eacb30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fcc8c131864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1f4d2b0, th=0x2acff00) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fcc8c133e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1eacf10, th=0x2acff00) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fcc8c132ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fcc60614d20, parent=0x1f4d2b0, th=0x2acff00) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fcc8c132d5b in ThreadWeaver::Thread::run (this=0x2acff00) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fcc90336d05 in QThreadPrivate::start (arg=0x2acff00) at thread/qthread_unix.cpp:331
#8  0x00007fcc84afb56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007fcc882eeefc in start_thread (arg=0x7fcc60615700) at pthread_create.c:304
#10 0x00007fcc9326389d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fcc5fe14700 (LWP 2189)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fcc903371ab in wait (time=18446744073709551615, this=0x1f09b30) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1eacb30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fcc8c131864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1f4d2b0, th=0x22c7360) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fcc8c133e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1eacf10, th=0x22c7360) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fcc8c133e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1eacf10, th=0x22c7360) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fcc8c132ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fcc5fe13d20, parent=0x1f4d2b0, th=0x22c7360) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007fcc8c132d5b in ThreadWeaver::Thread::run (this=0x22c7360) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007fcc90336d05 in QThreadPrivate::start (arg=0x22c7360) at thread/qthread_unix.cpp:331
#9  0x00007fcc84afb56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007fcc882eeefc in start_thread (arg=0x7fcc5fe14700) at pthread_create.c:304
#11 0x00007fcc9326389d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fcc9397a7c0 (LWP 1706)):
[KCrash Handler]
#6  isNull (this=0x4d0000) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#7  operator! (this=0x4d0000) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#8  TaskManager::TaskItem::task (this=0x38774c0) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007fcc784e5112 in WindowTaskItem::publishIconGeometry (this=0x313c4d0) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#10 0x00007fcc784f3b7c in AbstractTaskItem::timerEvent (this=0x313c4d0, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#11 0x00007fcc90434789 in QObject::event (this=0x313c4d0, e=<optimized out>) at kernel/qobject.cpp:1181
#12 0x00007fcc8fdec89b in QGraphicsWidget::event (this=0x313c4d0, event=0x7fff44052560) at graphicsview/qgraphicswidget.cpp:1455
#13 0x00007fcc8f7ce424 in notify_helper (e=0x7fff44052560, receiver=0x313c4d0, this=0x15f4cd0) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x15f4cd0, receiver=0x313c4d0, e=0x7fff44052560) at kernel/qapplication.cpp:4458
#15 0x00007fcc8f7d3291 in QApplication::notify (this=0x15e4a70, receiver=0x313c4d0, e=0x7fff44052560) at kernel/qapplication.cpp:4365
#16 0x00007fcc910cc126 in KApplication::notify (this=0x15e4a70, receiver=0x313c4d0, event=0x7fff44052560) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007fcc9041dafc in QCoreApplication::notifyInternal (this=0x15e4a70, receiver=0x313c4d0, event=0x7fff44052560) at kernel/qcoreapplication.cpp:787
#18 0x00007fcc9044ad62 in sendEvent (event=0x7fff44052560, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QTimerInfoList::activateTimers (this=0x15f40c0) at kernel/qeventdispatcher_unix.cpp:603
#20 0x00007fcc90448538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#21 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#22 0x00007fcc877e1a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fcc877e2258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fcc877e2429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fcc90448ed6 in QEventDispatcherGlib::processEvents (this=0x153ff40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#26 0x00007fcc8f87607e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007fcc9041ccf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007fcc9041cef7 in QEventLoop::exec (this=0x7fff440527f0, flags=...) at kernel/qeventloop.cpp:201
#29 0x00007fcc90421789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0x00007fcc935621a3 in kdemain (argc=1, argv=0x7fff44052bd8) at ../../../../plasma/desktop/shell/main.cpp:120
#31 0x00007fcc931a330d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff44052bd8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff44052bc8) at libc-start.c:226
#32 0x0000000000400671 in _start ()

Possible duplicates by query: bug 289676, bug 289669, bug 289660, bug 289653, bug 289651.

Reported using DrKonqi