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 i686
Distribution: Ubuntu 11.10

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

I want to restart my computer, then the screen went blank and get this crash.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7776b20 (LWP 1690))]

Thread 8 (Thread 0xb181bb70 (LWP 1691)):
#0  0x01707dca in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x00f1df14 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0x01cb9ceb in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x01cba8f0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x01cbac2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x02006b37 in QEventDispatcherGlib::processEvents (this=0x8ef91f0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x01fd71dd in QEventLoop::processEvents (this=0xb181b2a0, flags=...) at kernel/qeventloop.cpp:149
#7  0x01fd7421 in QEventLoop::exec (this=0xb181b2a0, flags=...) at kernel/qeventloop.cpp:201
#8  0x01eda90b in QThread::exec (this=0x8ef6078) at thread/qthread.cpp:498
#9  0x01fb7e2d in QInotifyFileSystemWatcherEngine::run (this=0x8ef6078) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x01edd7b3 in QThreadPrivate::start (arg=0x8ef6078) at thread/qthread_unix.cpp:331
#11 0x01705d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x00f100ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 7 (Thread 0xaff3fb70 (LWP 1692)):
#0  0x009c0416 in __kernel_vsyscall ()
#1  0x00f0140e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x01cc934b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x01cba896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x01cbac2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x02006b37 in QEventDispatcherGlib::processEvents (this=0x8fac878, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x01fd71dd in QEventLoop::processEvents (this=0xaff3f2a0, flags=...) at kernel/qeventloop.cpp:149
#7  0x01fd7421 in QEventLoop::exec (this=0xaff3f2a0, flags=...) at kernel/qeventloop.cpp:201
#8  0x01eda90b in QThread::exec (this=0x8face20) at thread/qthread.cpp:498
#9  0x01fb7e2d in QInotifyFileSystemWatcherEngine::run (this=0x8face20) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x01edd7b3 in QThreadPrivate::start (arg=0x8face20) at thread/qthread_unix.cpp:331
#11 0x01705d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x00f100ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 6 (Thread 0xadcbdb70 (LWP 1700)):
#0  0x009c0416 in __kernel_vsyscall ()
#1  0x00f0140e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x01cc934b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x01cba896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x01cbaf9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x05267cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0x01ce15f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x01705d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x00f100ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 5 (Thread 0xad0d4b70 (LWP 2179)):
#0  0x009c0416 in __kernel_vsyscall ()
#1  0x01709a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x00f1dcfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x01eddcc0 in wait (time=4294967295, this=0x8f66900) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x8f746c0, mutex=0x8f49b48, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00925406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x8f746a8, th=0x9c73dc8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00927ecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x8f59440, th=0x9c73dc8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0092503a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x8f746a8, th=0x9c73dc8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00927fcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x8f59440, th=0x9c73dc8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00924f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8f746a8, th=0x9c73dc8, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00927fe8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x8f59440, th=0x9c73dc8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0x00924f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8f746a8, th=0x9c73dc8, previous=0x9c934b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0x00926b14 in ThreadWeaver::ThreadRunHelper::run (this=0xad0d4304, parent=0x8f746a8, th=0x9c73dc8) at ../../../threadweaver/Weaver/Thread.cpp:87
#13 0x00926bca in ThreadWeaver::Thread::run (this=0x9c73dc8) at ../../../threadweaver/Weaver/Thread.cpp:142
#14 0x01edd7b3 in QThreadPrivate::start (arg=0x9c73dc8) at thread/qthread_unix.cpp:331
#15 0x01705d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#16 0x00f100ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 4 (Thread 0xaecbfb70 (LWP 2180)):
#0  0x009c0416 in __kernel_vsyscall ()
#1  0x01709a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x00f1dcfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x01eddcc0 in wait (time=4294967295, this=0x8f66900) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x8f746c0, mutex=0x8f49b48, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00925406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x8f746a8, th=0x994a638) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00927ecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x8f59440, th=0x994a638) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0092503a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x8f746a8, th=0x994a638) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00927fcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x8f59440, th=0x994a638) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00924f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8f746a8, th=0x994a638, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00927fe8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x8f59440, th=0x994a638) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0x00924f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8f746a8, th=0x994a638, previous=0x98fd588) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0x00926b14 in ThreadWeaver::ThreadRunHelper::run (this=0xaecbf304, parent=0x8f746a8, th=0x994a638) at ../../../threadweaver/Weaver/Thread.cpp:87
#13 0x00926bca in ThreadWeaver::Thread::run (this=0x994a638) at ../../../threadweaver/Weaver/Thread.cpp:142
#14 0x01edd7b3 in QThreadPrivate::start (arg=0x994a638) at thread/qthread_unix.cpp:331
#15 0x01705d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#16 0x00f100ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xae4beb70 (LWP 2181)):
#0  0x009c0416 in __kernel_vsyscall ()
#1  0x01709a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x00f1dcfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x01eddcc0 in wait (time=4294967295, this=0x8f66900) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x8f746c0, mutex=0x8f49b48, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00925406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x8f746a8, th=0x9c907b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00927ecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x8f59440, th=0x9c907b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0092503a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x8f746a8, th=0x9c907b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00927fcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x8f59440, th=0x9c907b0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00924f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8f746a8, th=0x9c907b0, previous=0x8c06660) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00926b14 in ThreadWeaver::ThreadRunHelper::run (this=0xae4be304, parent=0x8f746a8, th=0x9c907b0) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00926bca in ThreadWeaver::Thread::run (this=0x9c907b0) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x01edd7b3 in QThreadPrivate::start (arg=0x9c907b0) at thread/qthread_unix.cpp:331
#13 0x01705d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#14 0x00f100ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xab8bfb70 (LWP 2182)):
#0  0x009c0416 in __kernel_vsyscall ()
#1  0x01709a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x00f1dcfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x01eddcc0 in wait (time=4294967295, this=0x8f66900) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x8f746c0, mutex=0x8f49b48, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00925406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x8f746a8, th=0x995c948) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00927ecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x8f59440, th=0x995c948) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0092503a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x8f746a8, th=0x995c948) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00927fcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x8f59440, th=0x995c948) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00924f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x8f746a8, th=0x995c948, previous=0x8eed5a8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00926b14 in ThreadWeaver::ThreadRunHelper::run (this=0xab8bf304, parent=0x8f746a8, th=0x995c948) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00926bca in ThreadWeaver::Thread::run (this=0x995c948) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x01edd7b3 in QThreadPrivate::start (arg=0x995c948) at thread/qthread_unix.cpp:331
#13 0x01705d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#14 0x00f100ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb7776b20 (LWP 1690)):
[KCrash Handler]
#7  0x00000001 in ?? ()
#8  0x0497496f in TaskGroupItem::~TaskGroupItem (this=0x92c1370, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#9  0x04974a52 in TaskGroupItem::~TaskGroupItem (this=0x92c1370, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:84
#10 0x01feb5f3 in qDeleteInEventHandler (o=0x92c1370) at kernel/qobject.cpp:3986
#11 0x01ff0b80 in QObject::event (this=0x92c1370, e=0x96d3890) at kernel/qobject.cpp:1200
#12 0x06d5bbd4 in QGraphicsWidget::event (this=0x92c1370, event=0x96d3890) at graphicsview/qgraphicswidget.cpp:1455
#13 0x0669cd54 in notify_helper (e=0x96d3890, receiver=0x92c1370, this=0x87548c0) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x87548c0, receiver=0x92c1370, e=0x96d3890) at kernel/qapplication.cpp:4458
#15 0x066a2103 in QApplication::notify (this=0x96d3890, receiver=0x92c1370, e=0x96d3890) at kernel/qapplication.cpp:3886
#16 0x011a1681 in KApplication::notify (this=0x8734d90, receiver=0x92c1370, event=0x96d3890) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x01fd819e in QCoreApplication::notifyInternal (this=0x8734d90, receiver=0x92c1370, event=0x96d3890) at kernel/qcoreapplication.cpp:787
#18 0x01fdbf93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x86fa2e0) at kernel/qcoreapplication.cpp:1428
#20 0x01fdc0ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=52) at kernel/qcoreapplication.cpp:1321
#21 0x01fdc1d3 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#22 0x0669a8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#23 0x0097718b in kdemain (argc=1, argv=0xbf83bb54) at ../../../../plasma/desktop/shell/main.cpp:120
#24 0x0804850b in main (argc=1, argv=0xbf83bb54) at plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 287006.

Possible duplicates by query: bug 287006, bug 286892, bug 286733, bug 286630, bug 286544.

Reported using DrKonqi