Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2) (Compiled from sources)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic i686
Distribution: Ubuntu Natty (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
1.restart my system, get message about a crash.
2.each reloading I obtain the message about a crash

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb60f6720 (LWP 1314))]

Thread 4 (Thread 0xb326ab70 (LWP 1315)):
#0  0x0199736b in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x001ee616 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0x08c85009 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x08c85e63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x08c86524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x01ebb577 in QEventDispatcherGlib::processEvents (this=0xb2900468, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x01e8d289 in QEventLoop::processEvents (this=0xb326a280, flags=...) at kernel/qeventloop.cpp:149
#7  0x01e8d522 in QEventLoop::exec (this=0xb326a280, flags=...) at kernel/qeventloop.cpp:201
#8  0x01d972a0 in QThread::exec (this=0xa8e1158) at thread/qthread.cpp:492
#9  0x01e6efdb in QInotifyFileSystemWatcherEngine::run (this=0xa8e1158) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x01d99da2 in QThreadPrivate::start (arg=0xa8e1158) at thread/qthread_unix.cpp:320
#11 0x01994e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x001e073e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xb28ffb70 (LWP 1316)):
#0  0x00960416 in __kernel_vsyscall ()
#1  0x01999834 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x001ee454 in pthread_cond_timedwait () from /lib/i386-linux-gnu/libc.so.6
#3  0x01d9a3e5 in wait (this=0xa92d00c, mutex=0xa92d008, time=30000) at thread/qwaitcondition_unix.cpp:86
#4  QWaitCondition::wait (this=0xa92d00c, mutex=0xa92d008, time=30000) at thread/qwaitcondition_unix.cpp:160
#5  0x01d8d8f1 in QThreadPoolThread::run (this=0xa98f590) at concurrent/qthreadpool.cpp:140
#6  0x01d99da2 in QThreadPrivate::start (arg=0xa98f590) at thread/qthread_unix.cpp:320
#7  0x01994e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x001e073e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xac255b70 (LWP 1317)):
#0  0x00960416 in __kernel_vsyscall ()
#1  0x001d1f76 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x08c9684b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x08c861af in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x08c86524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x01ebb577 in QEventDispatcherGlib::processEvents (this=0xa8518f0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x01e8d289 in QEventLoop::processEvents (this=0xac255280, flags=...) at kernel/qeventloop.cpp:149
#7  0x01e8d522 in QEventLoop::exec (this=0xac255280, flags=...) at kernel/qeventloop.cpp:201
#8  0x01d972a0 in QThread::exec (this=0xa14e398) at thread/qthread.cpp:492
#9  0x01e6efdb in QInotifyFileSystemWatcherEngine::run (this=0xa14e398) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x01d99da2 in QThreadPrivate::start (arg=0xa14e398) at thread/qthread_unix.cpp:320
#11 0x01994e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x001e073e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb60f6720 (LWP 1314)):
[KCrash Handler]
#7  0x049a3a97 in QGraphicsItemPrivate::setVisibleHelper (this=0x42b840f, newVisible=false, explicitly=true, update=true) at graphicsview/qgraphicsitem.cpp:2262
#8  0x049a3f38 in QGraphicsItem::setVisible (this=0x730076, visible=false) at graphicsview/qgraphicsitem.cpp:2438
#9  0x02d86601 in hide (this=0xa49d388) at /usr/include/qt4/QtGui/qgraphicsitem.h:221
#10 MicroBlog::downloadHistory (this=0xa49d388) at ../../../applets/microblog/microblog.cpp:839
#11 0x02d8972a in MicroBlog::configChanged (this=0xa49d388) at ../../../applets/microblog/microblog.cpp:368
#12 0x02d83a8b in MicroBlog::init (this=0xa49d388) at ../../../applets/microblog/microblog.cpp:88
#13 0x003398ce in Plasma::ContainmentPrivate::initApplets (this=0xa2b9e48) at ../../plasma/containment.cpp:463
#14 0x0034d84b in Plasma::CoronaPrivate::importLayout (this=0xa0bf550, conf=..., mergeConfig=false) at ../../plasma/corona.cpp:1035
#15 0x0034e4ec in Plasma::Corona::loadLayout (this=0xa1463f0, configName=...) at ../../plasma/corona.cpp:278
#16 0x0034e5be in Plasma::Corona::initializeLayout (this=0xa1463f0, configName=...) at ../../plasma/corona.cpp:181
#17 0x005e01b7 in PlasmaApp::corona (this=0xa0adf68) at ../../../../plasma/desktop/shell/plasmaapp.cpp:797
#18 0x005e04fb in PlasmaApp::setupDesktop (this=0xa0adf68) at ../../../../plasma/desktop/shell/plasmaapp.cpp:299
#19 0x005e1e42 in PlasmaApp::qt_metacall (this=0xa0adf68, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0xa10d010) at ./plasmaapp.moc:155
#20 0x01e946ba in QMetaObject::metacall (object=0xa0adf68, cl=QMetaObject::InvokeMetaMethod, idx=45, argv=0xa10d010) at kernel/qmetaobject.cpp:237
#21 0x01e9ee16 in QMetaCallEvent::placeMetaCall (this=0xa10cfa8, object=0xa0adf68) at kernel/qobject.cpp:535
#22 0x01ea33b7 in QObject::event (this=0xa0adf68, e=0xa10cfa8) at kernel/qobject.cpp:1226
#23 0x01e8e6ab in QCoreApplication::event (this=0xa0adf68, e=0xa10cfa8) at kernel/qcoreapplication.cpp:1560
#24 0x0436123f in QApplication::event (this=0xa0adf68, e=0xa10cfa8) at kernel/qapplication.cpp:2503
#25 0x0435ed24 in QApplicationPrivate::notify_helper (this=0xa0b8548, receiver=0xa0adf68, e=0xa10cfa8) at kernel/qapplication.cpp:4462
#26 0x043638ce in QApplication::notify (this=0xa0adf68, receiver=0xa0adf68, e=0xa10cfa8) at kernel/qapplication.cpp:3862
#27 0x00ed33ca in KApplication::notify (this=0xa0adf68, receiver=0xa0adf68, event=0xa10cfa8) at ../../kdeui/kernel/kapplication.cpp:311
#28 0x01e8e0bb in QCoreApplication::notifyInternal (this=0xa0adf68, receiver=0xa0adf68, event=0xa10cfa8) at kernel/qcoreapplication.cpp:731
#29 0x01e91c79 in sendEvent (receiver=0x0, event_type=0, data=0xa041f50) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#30 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xa041f50) at kernel/qcoreapplication.cpp:1372
#31 0x01e91e0d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#32 0x01ebb3c4 in sendPostedEvents (s=0xa0bf8c8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#33 postEventSourceDispatch (s=0xa0bf8c8) at kernel/qeventdispatcher_glib.cpp:277
#34 0x08c85aa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#35 0x08c86270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#36 0x08c86524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#37 0x01ebb53c in QEventDispatcherGlib::processEvents (this=0xa041aa8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#38 0x04412775 in QGuiEventDispatcherGlib::processEvents (this=0xa041aa8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x01e8d289 in QEventLoop::processEvents (this=0xbf856574, flags=...) at kernel/qeventloop.cpp:149
#40 0x01e8d522 in QEventLoop::exec (this=0xbf856574, flags=...) at kernel/qeventloop.cpp:201
#41 0x01e91ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#42 0x0435c8e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#43 0x005c55a5 in kdemain (argc=1, argv=0xbf856784) at ../../../../plasma/desktop/shell/main.cpp:118
#44 0x080485cb in main (argc=1, argv=0xbf856784) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 270327, bug 239055, bug 238374, bug 237991, bug 237802.

Reported using DrKonqi