Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-13-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: I Closed About window in Firefox.

- Unusual behavior I noticed:

Its Happend some times in other apps like GTK Hash and Kadu. Plasma Destop just crash, Restart give some like THIS look about Panel:

http://img510.imageshack.us/img510/3564/screen9e.png

After restart KDM its just normal , to time next crash.

The crash can be reproduced every time.

-- Backtrace:
Application: Powłoka pulpitu Plazmy (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7743b20 (LWP 1657))]

Thread 8 (Thread 0xb1493b70 (LWP 1659)):
#0  0x009fa416 in __kernel_vsyscall ()
#1  0x0031140e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x0286c34b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x0285d896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x0285dc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x02adcb37 in QEventDispatcherGlib::processEvents (this=0x90beca0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x02aad1dd in QEventLoop::processEvents (this=0xb14932a0, flags=...) at kernel/qeventloop.cpp:149
#7  0x02aad421 in QEventLoop::exec (this=0xb14932a0, flags=...) at kernel/qeventloop.cpp:201
#8  0x029b090b in QThread::exec (this=0x90bc608) at thread/qthread.cpp:498
#9  0x02a8de2d in QInotifyFileSystemWatcherEngine::run (this=0x90bc608) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x029b37b3 in QThreadPrivate::start (arg=0x90bc608) at thread/qthread_unix.cpp:331
#11 0x08383d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x003200ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 7 (Thread 0xaf959b70 (LWP 1660)):
#0  0x009fa416 in __kernel_vsyscall ()
#1  0x0031140e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x0286c34b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x0285d896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x0285dc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x02adcb37 in QEventDispatcherGlib::processEvents (this=0x92626d0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x02aad1dd in QEventLoop::processEvents (this=0xaf9592a0, flags=...) at kernel/qeventloop.cpp:149
#7  0x02aad421 in QEventLoop::exec (this=0xaf9592a0, flags=...) at kernel/qeventloop.cpp:201
#8  0x029b090b in QThread::exec (this=0x925ed00) at thread/qthread.cpp:498
#9  0x02a8de2d in QInotifyFileSystemWatcherEngine::run (this=0x925ed00) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x029b37b3 in QThreadPrivate::start (arg=0x925ed00) at thread/qthread_unix.cpp:331
#11 0x08383d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x003200ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 6 (Thread 0xad6d7b70 (LWP 1668)):
#0  0x0838246b in __i686.get_pc_thunk.bx () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x08385d8f in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x0032df14 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#3  0x0285beda in g_main_context_acquire () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x0285d56d in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x0285df9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0x06b90cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#7  0x028845f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x08383d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#9  0x003200ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 5 (Thread 0xacc7eb70 (LWP 2492)):
#0  0x009fa416 in __kernel_vsyscall ()
#1  0x08387a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x0032dcfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x029b3cc0 in wait (time=4294967295, this=0x90fbcc0) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x9112c50, mutex=0x90e2530, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00918406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9112c38, th=0x9e99260) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x0091aecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x90fa588, th=0x9e99260) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0091803a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9112c38, th=0x9e99260) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x0091afcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x90fa588, th=0x9e99260) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00917f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9112c38, th=0x9e99260, previous=0x99aacc0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00919b14 in ThreadWeaver::ThreadRunHelper::run (this=0xacc7e304, parent=0x9112c38, th=0x9e99260) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00919bca in ThreadWeaver::Thread::run (this=0x9e99260) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x029b37b3 in QThreadPrivate::start (arg=0x9e99260) at thread/qthread_unix.cpp:331
#13 0x08383d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#14 0x003200ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 4 (Thread 0xae6d9b70 (LWP 2493)):
#0  0x009fa416 in __kernel_vsyscall ()
#1  0x08387a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x0032dcfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x029b3cc0 in wait (time=4294967295, this=0x90fbcc0) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x9112c50, mutex=0x90e2530, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00918406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9112c38, th=0xa1b21e8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x0091aecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x90fa588, th=0xa1b21e8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0091803a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9112c38, th=0xa1b21e8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x0091afcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x90fa588, th=0xa1b21e8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00917f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9112c38, th=0xa1b21e8, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x0091afe8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x90fa588, th=0xa1b21e8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0x00917f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9112c38, th=0xa1b21e8, previous=0x9333e00) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0x00919b14 in ThreadWeaver::ThreadRunHelper::run (this=0xae6d9304, parent=0x9112c38, th=0xa1b21e8) at ../../../threadweaver/Weaver/Thread.cpp:87
#13 0x00919bca in ThreadWeaver::Thread::run (this=0xa1b21e8) at ../../../threadweaver/Weaver/Thread.cpp:142
#14 0x029b37b3 in QThreadPrivate::start (arg=0xa1b21e8) at thread/qthread_unix.cpp:331
#15 0x08383d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#16 0x003200ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xaded8b70 (LWP 2494)):
#0  0x009fa416 in __kernel_vsyscall ()
#1  0x08387a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x0032dcfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x029b3cc0 in wait (time=4294967295, this=0x90fbcc0) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x9112c50, mutex=0x90e2530, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00918406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9112c38, th=0xa375738) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x0091aecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x90fa588, th=0xa375738) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0091803a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9112c38, th=0xa375738) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x0091afcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x90fa588, th=0xa375738) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00917f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9112c38, th=0xa375738, previous=0xa46aa40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00919b14 in ThreadWeaver::ThreadRunHelper::run (this=0xaded8304, parent=0x9112c38, th=0xa375738) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00919bca in ThreadWeaver::Thread::run (this=0xa375738) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x029b37b3 in QThreadPrivate::start (arg=0xa375738) at thread/qthread_unix.cpp:331
#13 0x08383d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#14 0x003200ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xab4e2b70 (LWP 2495)):
#0  0x009fa416 in __kernel_vsyscall ()
#1  0x08387a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x0032dcfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x029b3cc0 in wait (time=4294967295, this=0x90fbcc0) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x9112c50, mutex=0x90e2530, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00918406 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9112c38, th=0x9a37e28) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x0091aecb in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x90fa588, th=0x9a37e28) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x0091803a in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9112c38, th=0x9a37e28) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x0091afcc in ThreadWeaver::WorkingHardState::applyForWork (this=0x90fa588, th=0x9a37e28) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00917f93 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9112c38, th=0x9a37e28, previous=0x9e23348) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00919b14 in ThreadWeaver::ThreadRunHelper::run (this=0xab4e2304, parent=0x9112c38, th=0x9a37e28) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00919bca in ThreadWeaver::Thread::run (this=0x9a37e28) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x029b37b3 in QThreadPrivate::start (arg=0x9a37e28) at thread/qthread_unix.cpp:331
#13 0x08383d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#14 0x003200ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb7743b20 (LWP 1657)):
[KCrash Handler]
#7  operator== (value=0, this=0x9) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#8  isNull (this=0x9ae7258) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#9  operator! (this=0x9ae7258) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#10 TaskManager::TaskItem::task (this=0x9cef360) at ../../../libs/taskmanager/taskitem.cpp:113
#11 0x051ae662 in WindowTaskItem::publishIconGeometry (this=0x9aac6e0) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#12 0x051bf688 in AbstractTaskItem::timerEvent (this=0x9aac6e0, event=0xbfc0f41c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#13 0x02ac6994 in QObject::event (this=0x9aac6e0, e=0xbfc0f41c) at kernel/qobject.cpp:1181
#14 0x019d2bd4 in QGraphicsWidget::event (this=0x9aac6e0, event=0xbfc0f41c) at graphicsview/qgraphicswidget.cpp:1455
#15 0x01313d54 in notify_helper (e=0xbfc0f41c, receiver=0x9aac6e0, this=0x8a942f0) at kernel/qapplication.cpp:4486
#16 QApplicationPrivate::notify_helper (this=0x8a942f0, receiver=0x9aac6e0, e=0xbfc0f41c) at kernel/qapplication.cpp:4458
#17 0x01319103 in QApplication::notify (this=0xbfc0f41c, receiver=0x9aac6e0, e=0xbfc0f41c) at kernel/qapplication.cpp:3886
#18 0x00f6a681 in KApplication::notify (this=0x8a89758, receiver=0x9aac6e0, event=0xbfc0f41c) at ../../kdeui/kernel/kapplication.cpp:311
#19 0x02aae19e in QCoreApplication::notifyInternal (this=0x8a89758, receiver=0x9aac6e0, event=0xbfc0f41c) at kernel/qcoreapplication.cpp:787
#20 0x02adec10 in sendEvent (event=0xbfc0f41c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QTimerInfoList::activateTimers (this=0x8a97304) at kernel/qeventdispatcher_unix.cpp:603
#22 0x02adc155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#23 idleTimerSourceDispatch (source=0x8a97488) at kernel/qeventdispatcher_glib.cpp:231
#24 0x0285d25f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0x0285d990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0x0285dc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0x02adcb37 in QEventDispatcherGlib::processEvents (this=0x8a43218, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#28 0x013cbe3a in QGuiEventDispatcherGlib::processEvents (this=0x8a43218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0x02aad1dd in QEventLoop::processEvents (this=0xbfc0f694, flags=...) at kernel/qeventloop.cpp:149
#30 0x02aad421 in QEventLoop::exec (this=0xbfc0f694, flags=...) at kernel/qeventloop.cpp:201
#31 0x02ab219d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#32 0x013118f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#33 0x0062418b in kdemain (argc=1, argv=0xbfc0f894) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x0804850b in main (argc=1, argv=0xbfc0f894) at plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 286582.

Possible duplicates by query: bug 286582, bug 286350, bug 286299, bug 286254, bug 286211.

Reported using DrKonqi