Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed: Tried to switch to a different program using task manager in panel


- Unusual behavior I noticed:
Plasma decided to crash and restart.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb77caad0 (LWP 4562))]

Thread 8 (Thread 0xb5526b70 (LWP 4564)):
#0  0x0796c610 in __i686.get_pc_thunk.bx () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x07971779 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x009cd656 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#3  0x02f5bfc2 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02f5ce63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x02f5d524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0x02973577 in QEventDispatcherGlib::processEvents (this=0x9b1eab8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#7  0x02945289 in QEventLoop::processEvents (this=0xb5526280, flags=...) at kernel/qeventloop.cpp:149
#8  0x02945522 in QEventLoop::exec (this=0xb5526280, flags=...) at kernel/qeventloop.cpp:201
#9  0x0284f2a0 in QThread::exec (this=0x974ef08) at thread/qthread.cpp:492
#10 0x02926fdb in QInotifyFileSystemWatcherEngine::run (this=0x974ef08) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x02851da2 in QThreadPrivate::start (arg=0x974ef08) at thread/qthread_unix.cpp:320
#12 0x0796de99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#13 0x009bf73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 7 (Thread 0xae679b70 (LWP 4566)):
#0  0x07971771 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x009cd656 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x02f5bfc2 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x02f5ce63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02f5d524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x02973577 in QEventDispatcherGlib::processEvents (this=0x9bf0670, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x02945289 in QEventLoop::processEvents (this=0xae679280, flags=...) at kernel/qeventloop.cpp:149
#7  0x02945522 in QEventLoop::exec (this=0xae679280, flags=...) at kernel/qeventloop.cpp:201
#8  0x0284f2a0 in QThread::exec (this=0x9737030) at thread/qthread.cpp:492
#9  0x02926fdb in QInotifyFileSystemWatcherEngine::run (this=0x9737030) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x02851da2 in QThreadPrivate::start (arg=0x9737030) at thread/qthread_unix.cpp:320
#11 0x0796de99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x009bf73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 6 (Thread 0xad677b70 (LWP 4571)):
#0  0x00b78416 in __kernel_vsyscall ()
#1  0x009b0f76 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x02f6d84b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x02f5d1af in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02f5d92b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x07ecb304 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0x02f862df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x0796de99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x009bf73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 5 (Thread 0xac3f7b70 (LWP 5009)):
#0  0x00b78416 in __kernel_vsyscall ()
#1  0x0797248c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x009cd3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x02852467 in wait (this=0xa04e898, mutex=0xa04def0, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0xa04e898, mutex=0xa04def0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x005237e0 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xa04e880, th=0x9f72cd0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x0052647c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0xa04aee0, th=0x9f72cd0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0052342b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0xa04e880, th=0x9f72cd0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x0052656a in ThreadWeaver::WorkingHardState::applyForWork (this=0xa04aee0, th=0x9f72cd0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00523373 in ThreadWeaver::WeaverImpl::applyForWork (this=0xa04e880, th=0x9f72cd0, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00524f9e in ThreadWeaver::ThreadRunHelper::run (this=0xac3f72e4, parent=0xa04e880, th=0x9f72cd0) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x0052505b in ThreadWeaver::Thread::run (this=0x9f72cd0) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x02851da2 in QThreadPrivate::start (arg=0x9f72cd0) at thread/qthread_unix.cpp:320
#13 0x0796de99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#14 0x009bf73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0xb4d25b70 (LWP 5010)):
#0  0x00b78416 in __kernel_vsyscall ()
#1  0x0797248c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x009cd3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x02852467 in wait (this=0xa04e898, mutex=0xa04def0, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0xa04e898, mutex=0xa04def0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x005237e0 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xa04e880, th=0xa60d218) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x0052647c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0xa04aee0, th=0xa60d218) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0052342b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0xa04e880, th=0xa60d218) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x0052656a in ThreadWeaver::WorkingHardState::applyForWork (this=0xa04aee0, th=0xa60d218) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00523373 in ThreadWeaver::WeaverImpl::applyForWork (this=0xa04e880, th=0xa60d218, previous=0x9f96bb8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00524f9e in ThreadWeaver::ThreadRunHelper::run (this=0xb4d252e4, parent=0xa04e880, th=0xa60d218) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x0052505b in ThreadWeaver::Thread::run (this=0xa60d218) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x02851da2 in QThreadPrivate::start (arg=0xa60d218) at thread/qthread_unix.cpp:320
#13 0x0796de99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#14 0x009bf73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xade78b70 (LWP 5011)):
#0  0x00b78416 in __kernel_vsyscall ()
#1  0x0797248c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x009cd3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x02852467 in wait (this=0xa04e898, mutex=0xa04def0, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0xa04e898, mutex=0xa04def0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x005237e0 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xa04e880, th=0xa2cfba0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x0052647c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0xa04aee0, th=0xa2cfba0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0052342b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0xa04e880, th=0xa2cfba0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x0052656a in ThreadWeaver::WorkingHardState::applyForWork (this=0xa04aee0, th=0xa2cfba0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00523373 in ThreadWeaver::WeaverImpl::applyForWork (this=0xa04e880, th=0xa2cfba0, previous=0xa10cd58) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00524f9e in ThreadWeaver::ThreadRunHelper::run (this=0xade782e4, parent=0xa04e880, th=0xa2cfba0) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x0052505b in ThreadWeaver::Thread::run (this=0xa2cfba0) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x02851da2 in QThreadPrivate::start (arg=0xa2cfba0) at thread/qthread_unix.cpp:320
#13 0x0796de99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#14 0x009bf73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xab7ffb70 (LWP 5012)):
#0  0x00b78416 in __kernel_vsyscall ()
#1  0x0797248c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x009cd3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x02852467 in wait (this=0xa04e898, mutex=0xa04def0, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0xa04e898, mutex=0xa04def0, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x005237e0 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xa04e880, th=0xa5ddf30) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x0052647c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0xa04aee0, th=0xa5ddf30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0052342b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0xa04e880, th=0xa5ddf30) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x0052656a in ThreadWeaver::WorkingHardState::applyForWork (this=0xa04aee0, th=0xa5ddf30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00523373 in ThreadWeaver::WeaverImpl::applyForWork (this=0xa04e880, th=0xa5ddf30, previous=0xa29d1c0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00524f9e in ThreadWeaver::ThreadRunHelper::run (this=0xab7ff2e4, parent=0xa04e880, th=0xa5ddf30) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x0052505b in ThreadWeaver::Thread::run (this=0xa5ddf30) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x02851da2 in QThreadPrivate::start (arg=0xa5ddf30) at thread/qthread_unix.cpp:320
#13 0x0796de99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#14 0x009bf73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb77caad0 (LWP 4562)):
[KCrash Handler]
#7  QGraphicsItemPrivate::invalidateParentGraphicsEffectsRecursively (this=0x0) at graphicsview/qgraphicsitem.cpp:5372
#8  0x04117f79 in QGraphicsItem::update (this=0xa5b29f8, rect=...) at graphicsview/qgraphicsitem.cpp:5679
#9  0xa841982b in ?? () from /usr/lib/pymodules/python2.7/PyQt4/QtGui.so
#10 0x0647c338 in PyCFunction_Call (func=0xb77442c, arg=0xb36b02c, kw=0x0) at ../Objects/methodobject.c:85
#11 0x064e3500 in call_function (f=0xb6b20fc, throwflag=0) at ../Python/ceval.c:4013
#12 PyEval_EvalFrameEx (f=0xb6b20fc, throwflag=0) at ../Python/ceval.c:2666
#13 0x064e54c8 in PyEval_EvalCodeEx (co=0xb6074e8, globals=0xb606c64, locals=0x0, args=0xb60b358, argcount=1, kws=0x0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3253
#14 0x06463c17 in function_call (func=0xb76c10c, arg=0xb60b34c, kw=0x0) at ../Objects/funcobject.c:526
#15 0x0643708c in PyObject_Call (func=0xb76c10c, arg=0xb60b34c, kw=0x0) at ../Objects/abstract.c:2529
#16 0x06449c0c in instancemethod_call (func=0xb76c10c, arg=0xb60b34c, kw=0x0) at ../Objects/classobject.c:2578
#17 0x0643708c in PyObject_Call (func=0xb3c97ac, arg=0xb36b02c, kw=0x0) at ../Objects/abstract.c:2529
#18 0x064de508 in PyEval_CallObjectWithKeywords (func=0xb3c97ac, arg=0xb36b02c, kw=0x0) at ../Python/ceval.c:3882
#19 0x050cd2ef in sip_api_invoke_slot () from /usr/lib/pymodules/python2.7/sip.so
#20 0x07879b83 in ?? () from /usr/lib/pymodules/python2.7/PyQt4/QtCore.so
#21 0x07879c6e in ?? () from /usr/lib/pymodules/python2.7/PyQt4/QtCore.so
#22 0x07879d35 in ?? () from /usr/lib/pymodules/python2.7/PyQt4/QtCore.so
#23 0x0294c6ba in QMetaObject::metacall (object=0xa7a5af0, cl=QMetaObject::InvokeMetaMethod, idx=5, argv=0xbf86780c) at kernel/qmetaobject.cpp:237
#24 0x0295c4ff in QMetaObject::activate (sender=0xb742988, m=0x2a815a4, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3287
#25 0x029a92f7 in QTimer::timeout (this=0xb742988) at .moc/release-shared/moc_qtimer.cpp:134
#26 0x029623ee in QTimer::timerEvent (this=0xb742988, e=0xbf867dac) at kernel/qtimer.cpp:271
#27 0x077c84ba in ?? () from /usr/lib/pymodules/python2.7/PyQt4/QtCore.so
#28 0x0295b214 in QObject::event (this=0xb742988, e=0xbf867dac) at kernel/qobject.cpp:1190
#29 0x077c8450 in ?? () from /usr/lib/pymodules/python2.7/PyQt4/QtCore.so
#30 0x03ad8d24 in QApplicationPrivate::notify_helper (this=0x96eba50, receiver=0xb742988, e=0xbf867dac) at kernel/qapplication.cpp:4462
#31 0x03add8ce in QApplication::notify (this=0x96e0f90, receiver=0xb742988, e=0xbf867dac) at kernel/qapplication.cpp:3862
#32 0x011be3ca in KApplication::notify (this=0x96e0f90, receiver=0xb742988, event=0xbf867dac) at ../../kdeui/kernel/kapplication.cpp:311
#33 0x029460bb in QCoreApplication::notifyInternal (this=0x96e0f90, receiver=0xb742988, event=0xbf867dac) at kernel/qcoreapplication.cpp:731
#34 0x029761e4 in sendEvent (this=0x96eea44) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#35 QTimerInfoList::activateTimers (this=0x96eea44) at kernel/qeventdispatcher_unix.cpp:604
#36 0x02972df4 in timerSourceDispatch (source=0x96eea10) at kernel/qeventdispatcher_glib.cpp:184
#37 0x02f5caa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#38 0x02f5d270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#39 0x02f5d524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#40 0x0297353c in QEventDispatcherGlib::processEvents (this=0x9693aa8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#41 0x03b8c775 in QGuiEventDispatcherGlib::processEvents (this=0x9693aa8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#42 0x02945289 in QEventLoop::processEvents (this=0xbf868044, flags=...) at kernel/qeventloop.cpp:149
#43 0x02945522 in QEventLoop::exec (this=0xbf868044, flags=...) at kernel/qeventloop.cpp:201
#44 0x02949ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#45 0x03ad68e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#46 0x005615a5 in kdemain (argc=1, argv=0xbf868254) at ../../../../plasma/desktop/shell/main.cpp:118
#47 0x080485cb in main (argc=1, argv=0xbf868254) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 273333, bug 270913, bug 267108, bug 262629, bug 261068.

Reported using DrKonqi