Bug 270452

Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-28-generic i686
Distribution: Ubuntu 10.10

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

kde plasma update 4.6.2 and plasma desktop crashed after login

The crash can be reproduced every time.

-- Backtrace:
Application: Plazma asztali héj (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb60e5940 (LWP 3907))]

Thread 3 (Thread 0xb2e79b70 (LWP 3908)):
#0  0x02ab4613 in __i686.get_pc_thunk.bx () from /lib/libpthread.so.0
#1  0x02ab97a9 in __pthread_mutex_unlock_usercnt () from /lib/libpthread.so.0
#2  0x0068bfa6 in pthread_mutex_unlock () from /lib/libc.so.6
#3  0x041604f9 in ?? () from /lib/libglib-2.0.so.0
#4  0x04160848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#5  0x0152759f in QEventDispatcherGlib::processEvents (this=0x9817358, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#6  0x014f7609 in QEventLoop::processEvents (this=0xb2e791d0, flags=) at kernel/qeventloop.cpp:149
#7  0x014f7a8a in QEventLoop::exec (this=0xb2e791d0, flags=...) at kernel/qeventloop.cpp:201
#8  0x013f3b7e in QThread::exec (this=0x984b300) at thread/qthread.cpp:490
#9  0x014d635b in QInotifyFileSystemWatcherEngine::run (this=0x984b300) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x013f6df9 in QThreadPrivate::start (arg=0x984b300) at thread/qthread_unix.cpp:266
#11 0x02b98ba8 in ?? () from /usr/lib/nvidia-current/libGL.so.1

Thread 2 (Thread 0xabdb0b70 (LWP 3910)):
#0  0x0043c416 in __kernel_vsyscall ()
#1  0x0066fdf6 in poll () from /lib/libc.so.6
#2  0x0416da1b in g_poll () from /lib/libglib-2.0.so.0
#3  0x0416043c in ?? () from /lib/libglib-2.0.so.0
#4  0x04160848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#5  0x0152759f in QEventDispatcherGlib::processEvents (this=0x9cda6a8, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#6  0x014f7609 in QEventLoop::processEvents (this=0xabdb01d0, flags=) at kernel/qeventloop.cpp:149
#7  0x014f7a8a in QEventLoop::exec (this=0xabdb01d0, flags=...) at kernel/qeventloop.cpp:201
#8  0x013f3b7e in QThread::exec (this=0x9cda610) at thread/qthread.cpp:490
#9  0x014d635b in QInotifyFileSystemWatcherEngine::run (this=0x9cda610) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x013f6df9 in QThreadPrivate::start (arg=0x9cda610) at thread/qthread_unix.cpp:266
#11 0x02b98ba8 in ?? () from /usr/lib/nvidia-current/libGL.so.1

Thread 1 (Thread 0xb60e5940 (LWP 3907)):
[KCrash Handler]
#7  q_func (this=0xfcd502e8, newVisible=false, explicitly=true, update=true) at graphicsview/qgraphicsitem_p.h:160
#8  QGraphicsItemPrivate::setVisibleHelper (this=0xfcd502e8, newVisible=false, explicitly=true, update=true) at graphicsview/qgraphicsitem.cpp:2235
#9  0x0381c308 in QGraphicsItem::setVisible (this=0x610075, visible=<value optimized out>) at graphicsview/qgraphicsitem.cpp:2411
#10 0x04296bf1 in hide (this=0x984daf8) at /usr/include/qt4/QtGui/qgraphicsitem.h:221
#11 MicroBlog::downloadHistory (this=0x984daf8) at ../../../applets/microblog/microblog.cpp:839
#12 0x042992ec in MicroBlog::configChanged (this=0x984daf8) at ../../../applets/microblog/microblog.cpp:368
#13 0x042939ab in MicroBlog::init (this=0x984daf8) at ../../../applets/microblog/microblog.cpp:88
#14 0x001d7d3c in Plasma::ContainmentPrivate::initApplets (this=0x96d47e0) at ../../plasma/containment.cpp:463
#15 0x001edfff in Plasma::CoronaPrivate::importLayout (this=0x8fed078, conf=..., mergeConfig=false) at ../../plasma/corona.cpp:566
#16 0x001eebec in Plasma::Corona::loadLayout (this=0x8ff4df0, configName=...) at ../../plasma/corona.cpp:494
#17 0x001ef7ee in Plasma::Corona::initializeLayout (this=0x8ff4df0, configName=...) at ../../plasma/corona.cpp:397
#18 0x00e6a52a in PlasmaApp::corona (this=0x8fdd7e8) at ../../../../plasma/desktop/shell/plasmaapp.cpp:797
#19 0x00e6a90b in PlasmaApp::setupDesktop (this=0x8fdd7e8) at ../../../../plasma/desktop/shell/plasmaapp.cpp:299
#20 0x00e6d677 in PlasmaApp::qt_metacall (this=0x8fdd7e8, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0x905ec90) at ./plasmaapp.moc:155
#21 0x014fe8ca in QMetaObject::metacall (object=0x8fdd7e8, cl=69857841, idx=45, argv=0x905ec90) at kernel/qmetaobject.cpp:237
#22 0x01509df6 in QMetaCallEvent::placeMetaCall (this=0x905f2d0, object=0x8fdd7e8) at kernel/qobject.cpp:534
#23 0x0150b6a2 in QObject::event (this=0x8fdd7e8, e=0x0) at kernel/qobject.cpp:1219
#24 0x014f89db in QCoreApplication::event (this=0x8fdd7e8, e=0x905f2d0) at kernel/qcoreapplication.cpp:1561
#25 0x031784d4 in QApplication::event (this=0x8fdd7e8, e=0x905f2d0) at kernel/qapplication.cpp:2439
#26 0x03174fdc in QApplicationPrivate::notify_helper (this=0x8feecd8, receiver=0x8fdd7e8, e=0x905f2d0) at kernel/qapplication.cpp:4396
#27 0x0317b04e in QApplication::notify (this=0x8fdd7e8, receiver=0x8fdd7e8, e=0x905f2d0) at kernel/qapplication.cpp:3798
#28 0x0109482a in KApplication::notify (this=0x8fdd7e8, receiver=0x8fdd7e8, event=0x905f2d0) at ../../kdeui/kernel/kapplication.cpp:311
#29 0x014f8b3b in QCoreApplication::notifyInternal (this=0x8fdd7e8, receiver=0x8fdd7e8, event=0x905f2d0) at kernel/qcoreapplication.cpp:732
#30 0x014fbd8b in sendEvent (receiver=0x0, event_type=0, data=0x8f69300) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8f69300) at kernel/qcoreapplication.cpp:1373
#32 0x014fbf4d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1266
#33 0x01527a74 in sendPostedEvents (s=0x8feaab0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#34 postEventSourceDispatch (s=0x8feaab0) at kernel/qeventdispatcher_glib.cpp:277
#35 0x0415c855 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#36 0x04160668 in ?? () from /lib/libglib-2.0.so.0
#37 0x04160848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#38 0x01527565 in QEventDispatcherGlib::processEvents (this=0x8f68fc0, flags=...) at kernel/qeventdispatcher_glib.cpp:415
#39 0x03236be5 in QGuiEventDispatcherGlib::processEvents (this=0x8f68fc0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x014f7609 in QEventLoop::processEvents (this=0xbf8531a4, flags=) at kernel/qeventloop.cpp:149
#41 0x014f7a8a in QEventLoop::exec (this=0xbf8531a4, flags=...) at kernel/qeventloop.cpp:201
#42 0x014fc00f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#43 0x03173e07 in QApplication::exec () at kernel/qapplication.cpp:3672
#44 0x00e4c1e7 in kdemain (argc=1, argv=0xbf8533b4) at ../../../../plasma/desktop/shell/main.cpp:118
#45 0x080485bb in main (argc=1, argv=0xbf8533b4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 270327, bug 248399.

Reported using DrKonqi