Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-13-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
The plasma framework crashes frequently when I shut down my PC. This is not only annoying, it stops the shutdown process and leaves my PC unable to shutdown. As a result, I have to do a lot of cold resets.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f72983947c0 (LWP 1779))]

Thread 8 (Thread 0x7f72752af700 (LWP 1780)):
#0  0x00007f7297c68773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f728c1f3f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f728c1f4429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7294e5af3e in QEventDispatcherGlib::processEvents (this=0x26c8de0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f7294e2ecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f7294e2eef7 in QEventLoop::exec (this=0x7f72752aecd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f7294d4627f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f7294e11cbf in QInotifyFileSystemWatcherEngine::run (this=0x26ca7a0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f7294d48d05 in QThreadPrivate::start (arg=0x26ca7a0) at thread/qthread_unix.cpp:331
#9  0x00007f728950d56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f728cd00efc in start_thread (arg=0x7f72752af700) at pthread_create.c:304
#11 0x00007f7297c7489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f726ceb6700 (LWP 1781)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f726ceb59f0 in ?? ()
#2  0x00007fff2f6e67e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 6 (Thread 0x7f726771b700 (LWP 1788)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7291e5ffe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f7291e60019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f728950d56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f728cd00efc in start_thread (arg=0x7f726771b700) at pthread_create.c:304
#5  0x00007f7297c7489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f7269bd8700 (LWP 4311)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7294d491ab in wait (time=18446744073709551615, this=0x26e5170) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x26c5830, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f7290b43864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2767510, th=0x38ec1f0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f7290b45e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x27010c0, th=0x38ec1f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f7290b44ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f7269bd7d20, parent=0x2767510, th=0x38ec1f0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f7290b44d5b in ThreadWeaver::Thread::run (this=0x38ec1f0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f7294d48d05 in QThreadPrivate::start (arg=0x38ec1f0) at thread/qthread_unix.cpp:331
#8  0x00007f728950d56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f728cd00efc in start_thread (arg=0x7f7269bd8700) at pthread_create.c:304
#10 0x00007f7297c7489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f725c653700 (LWP 4312)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7294d491ab in wait (time=18446744073709551615, this=0x26e5170) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x26c5830, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f7290b43864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2767510, th=0x4bb51a0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f7290b45e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x27010c0, th=0x4bb51a0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f7290b44ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f725c652d20, parent=0x2767510, th=0x4bb51a0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f7290b44d5b in ThreadWeaver::Thread::run (this=0x4bb51a0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f7294d48d05 in QThreadPrivate::start (arg=0x4bb51a0) at thread/qthread_unix.cpp:331
#8  0x00007f728950d56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f728cd00efc in start_thread (arg=0x7f725c653700) at pthread_create.c:304
#10 0x00007f7297c7489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f725d51b700 (LWP 4313)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7294d491ab in wait (time=18446744073709551615, this=0x26e5170) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x26c5830, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f7290b43864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2767510, th=0x3b1b470) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f7290b45e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x27010c0, th=0x3b1b470) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f7290b44ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f725d51ad20, parent=0x2767510, th=0x3b1b470) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f7290b44d5b in ThreadWeaver::Thread::run (this=0x3b1b470) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f7294d48d05 in QThreadPrivate::start (arg=0x3b1b470) at thread/qthread_unix.cpp:331
#8  0x00007f728950d56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f728cd00efc in start_thread (arg=0x7f725d51b700) at pthread_create.c:304
#10 0x00007f7297c7489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f725b619700 (LWP 4314)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7294d491ab in wait (time=18446744073709551615, this=0x26e5170) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x26c5830, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f7290b43864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2767510, th=0x306ba80) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f7290b45e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x27010c0, th=0x306ba80) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f7290b44ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f725b618d20, parent=0x2767510, th=0x306ba80) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f7290b44d5b in ThreadWeaver::Thread::run (this=0x306ba80) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f7294d48d05 in QThreadPrivate::start (arg=0x306ba80) at thread/qthread_unix.cpp:331
#8  0x00007f728950d56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f728cd00efc in start_thread (arg=0x7f725b619700) at pthread_create.c:304
#10 0x00007f7297c7489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f72983947c0 (LWP 1779)):
[KCrash Handler]
#6  0x00007f727bde6750 in vtable for WindowTaskItem () from /usr/lib/kde4/plasma_applet_tasks.so
#7  0x00007f7294e42714 in QObject::disconnect (sender=0x5b2f2f0, signal=0x0, receiver=0x2d445b0, method=0x0) at kernel/qobject.cpp:2728
#8  0x00007f726c49c971 in InterfaceItem::currentConnectionChanged (this=0x2d445b0) at ../../applet/interfaceitem.cpp:330
#9  0x00007f726c49cc56 in InterfaceItem::connectionStateChanged (this=0x2d445b0, state=Solid::Control::NetworkInterfaceNm09::Unavailable) at ../../applet/interfaceitem.cpp:442
#10 0x00007f726c48fcf1 in InterfaceItem::qt_metacall (this=0x2d445b0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff2f608740) at moc_interfaceitem.cpp:122
#11 0x00007f7294e42eba in QMetaObject::activate (sender=0x2c77b10, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff2f608740) at kernel/qobject.cpp:3278
#12 0x00007f726b96ff8d in Solid::Control::NetworkInterfaceNm09::connectionStateChanged (this=<optimized out>, _t1=20, _t2=100, _t3=40) at ./networkinterface.moc:167
#13 0x00007f726b970000 in Solid::Control::NetworkInterfaceNm09::qt_metacall (this=0x2c77b10, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff2f608890) at ./networkinterface.moc:135
#14 0x00007f726b971a90 in Solid::Control::WiredNetworkInterfaceNm09::qt_metacall (this=0x2c77b10, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff2f608890) at ./wirednetworkinterface.moc:74
#15 0x00007f7294e42eba in QMetaObject::activate (sender=0x2c79960, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff2f608890) at kernel/qobject.cpp:3278
#16 0x00007f726b05d89d in NMNetworkInterface::connectionStateChanged (this=<optimized out>, _t1=20, _t2=100, _t3=40) at ./networkinterface.moc:190
#17 0x00007f726b05eb8e in NMNetworkInterface::qt_metacall (this=0x2c79960, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7fff2f608ab0) at ./networkinterface.moc:124
#18 0x00007f726b0620f5 in NMWiredNetworkInterface::qt_metacall (this=0x2c79960, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff2f608ab0) at ./wirednetworkinterface.moc:87
#19 0x00007f7294e42eba in QMetaObject::activate (sender=0x2c05da8, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff2f608ab0) at kernel/qobject.cpp:3278
#20 0x00007f726b06a90a in OrgFreedesktopNetworkManagerDeviceInterface::StateChanged (this=<optimized out>, _t1=20, _t2=100, _t3=40) at ./nm-deviceinterface.moc:149
#21 0x00007f726b06a973 in OrgFreedesktopNetworkManagerDeviceInterface::qt_metacall (this=0x2c05da8, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fff2f608e50) at ./nm-deviceinterface.moc:99
#22 0x00007f72951870e9 in QDBusConnectionPrivate::deliverCall (this=0x1fb87c0, object=0x2c05da8, msg=..., metaTypes=..., slotIdx=5) at qdbusintegrator.cpp:942
#23 0x00007f729519038f in QDBusCallDeliveryEvent::placeMetaCall (this=<optimized out>, object=<optimized out>) at qdbusintegrator_p.h:103
#24 0x00007f7294e46a5e in QObject::event (this=0x2c05da8, e=<optimized out>) at kernel/qobject.cpp:1217
#25 0x00007f72941e0424 in notify_helper (e=0x4ad58c0, receiver=0x2c05da8, this=0x1e9a240) at kernel/qapplication.cpp:4486
#26 QApplicationPrivate::notify_helper (this=0x1e9a240, receiver=0x2c05da8, e=0x4ad58c0) at kernel/qapplication.cpp:4458
#27 0x00007f72941e5291 in QApplication::notify (this=0x1e7d350, receiver=0x2c05da8, e=0x4ad58c0) at kernel/qapplication.cpp:4365
#28 0x00007f7295ade126 in KApplication::notify (this=0x1e7d350, receiver=0x2c05da8, event=0x4ad58c0) at ../../kdeui/kernel/kapplication.cpp:311
#29 0x00007f7294e2fafc in QCoreApplication::notifyInternal (this=0x1e7d350, receiver=0x2c05da8, event=0x4ad58c0) at kernel/qcoreapplication.cpp:787
#30 0x00007f7294e3351f in sendEvent (event=0x4ad58c0, receiver=0x2c05da8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1ddc430) at kernel/qcoreapplication.cpp:1428
#32 0x00007f7294e5aa73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#33 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#34 0x00007f728c1f3a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f728c1f4258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f728c1f4429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f7294e5aed6 in QEventDispatcherGlib::processEvents (this=0x1dddf40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#38 0x00007f729428807e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007f7294e2ecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#40 0x00007f7294e2eef7 in QEventLoop::exec (this=0x7fff2f609670, flags=...) at kernel/qeventloop.cpp:201
#41 0x00007f7294e33789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#42 0x00007f7297f731a3 in kdemain (argc=1, argv=0x7fff2f609a58) at ../../../../plasma/desktop/shell/main.cpp:120
#43 0x00007f7297bb430d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff2f609a58, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff2f609a48) at libc-start.c:226
#44 0x0000000000400671 in _start ()

Reported using DrKonqi