Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic-pae i686
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I run Ubuntu 12.04, after I got a message of a software update I clicked on the light bulb icon and then I got a black horizontal band on my desktop.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xafe4ca40 (LWP 1859))]

Thread 5 (Thread 0xa7bc4b40 (LWP 1860)):
#0  0xb2bed3d0 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb2bad0de in g_main_context_acquire () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb2badf18 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2bae1c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb64518e7 in QEventDispatcherGlib::processEvents (this=0xa7200480, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0xb641d50d in QEventLoop::processEvents (this=0xa7bc4190, flags=...) at kernel/qeventloop.cpp:149
#6  0xb641d7a9 in QEventLoop::exec (this=0xa7bc4190, flags=...) at kernel/qeventloop.cpp:204
#7  0xb630694c in QThread::exec (this=0x939b0b8) at thread/qthread.cpp:501
#8  0xb63fab5d in QInotifyFileSystemWatcherEngine::run (this=0x939b0b8) at io/qfilesystemwatcher_inotify.cpp:248
#9  0xb6309de0 in QThreadPrivate::start (arg=0x939b0b8) at thread/qthread_unix.cpp:298
#10 0xb22f3a11 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x5c8b0824 in ?? ()
#12 0xbab80424 in ?? ()
#13 0x65000000 in ?? ()
#14 0x001015ff in ?? ()
#15 0xd3890000 in ?? ()
#16 0xfff0013d in ?? ()
#17 0xc30173ff in ?? ()
#18 0x0f8122e8 in ?? ()
#19 0x9fc18100 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 4 (Thread 0xa3f73b40 (LWP 1865)):
#0  0xb2cc1c31 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb763b634 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2bed3d0 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2bada46 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2bae002 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb2bae1c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb64518e7 in QEventDispatcherGlib::processEvents (this=0xa3600480, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb641d50d in QEventLoop::processEvents (this=0xa3f73190, flags=...) at kernel/qeventloop.cpp:149
#8  0xb641d7a9 in QEventLoop::exec (this=0xa3f73190, flags=...) at kernel/qeventloop.cpp:204
#9  0xb630694c in QThread::exec (this=0x989c848) at thread/qthread.cpp:501
#10 0xb63fab5d in QInotifyFileSystemWatcherEngine::run (this=0x989c848) at io/qfilesystemwatcher_inotify.cpp:248
#11 0xb6309de0 in QThreadPrivate::start (arg=0x989c848) at thread/qthread_unix.cpp:298
#12 0xb22f3a11 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#13 0x5c8b0824 in ?? ()
#14 0xbab80424 in ?? ()
#15 0x65000000 in ?? ()
#16 0x001015ff in ?? ()
#17 0xd3890000 in ?? ()
#18 0xfff0013d in ?? ()
#19 0xc30173ff in ?? ()
#20 0x0f8122e8 in ?? ()
#21 0x9fc18100 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 3 (Thread 0xa25deb40 (LWP 1871)):
#0  0xb7782424 in __kernel_vsyscall ()
#1  0xb2cc296b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb763b3dc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb3c7f029 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb3c7f06f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb22f3a11 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x5c8b0824 in ?? ()
#7  0xbab80424 in ?? ()
#8  0x65000000 in ?? ()
#9  0x001015ff in ?? ()
#10 0xd3890000 in ?? ()
#11 0xfff0013d in ?? ()
#12 0xc30173ff in ?? ()
#13 0x0f8122e8 in ?? ()
#14 0x9fc18100 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 2 (Thread 0xa0f74b40 (LWP 1873)):
#0  0xb2cc0e0f in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb763b5f4 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2bed390 in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2bad0c9 in g_main_context_acquire () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2badf18 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb2bae52b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xa18450ea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#7  0xb2bd1673 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb22f3a11 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x5c8b0824 in ?? ()
#10 0xbab80424 in ?? ()
#11 0x65000000 in ?? ()
#12 0x001015ff in ?? ()
#13 0xd3890000 in ?? ()
#14 0xfff0013d in ?? ()
#15 0xc30173ff in ?? ()
#16 0x0f8122e8 in ?? ()
#17 0x9fc18100 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 1 (Thread 0xafe4ca40 (LWP 1859)):
[KCrash Handler]
#7  0xb6713bc7 in KJob::isAutoDelete (this=0xa3ae430) at ../../kdecore/jobs/kjob.cpp:361
#8  0xb6713fe0 in KJob::emitResult (this=0xa3ae430) at ../../kdecore/jobs/kjob.cpp:320
#9  0xb73d5288 in Plasma::ServiceJob::setResult (this=0xa3ae430, result=...) at ../../plasma/servicejob.cpp:92
#10 0xacea9f36 in ?? () from /usr/lib/kde4/plasma_engine_statusnotifieritem.so
#11 0xb64356b1 in QMetaObject::activate (sender=0xa277408, m=0xaceb3c58, local_signal_index=0, argv=0xbfe9d9e8) at kernel/qobject.cpp:3547
#12 0xacea5585 in ?? () from /usr/lib/kde4/plasma_engine_statusnotifieritem.so
#13 0xacea55c1 in ?? () from /usr/lib/kde4/plasma_engine_statusnotifieritem.so
#14 0xacea8a60 in ?? () from /usr/lib/kde4/plasma_engine_statusnotifieritem.so
#15 0xb64356b1 in QMetaObject::activate (sender=0xa435060, m=0xb2d54e20, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3547
#16 0xb2d38065 in DBusMenuImporter::menuUpdated() () from /usr/lib/i386-linux-gnu/libdbusmenu-qt.so.2
#17 0xb2d38d34 in DBusMenuImporter::slotMenuAboutToShow() () from /usr/lib/i386-linux-gnu/libdbusmenu-qt.so.2
#18 0xb2d429b0 in ?? () from /usr/lib/i386-linux-gnu/libdbusmenu-qt.so.2
#19 0xb64356b1 in QMetaObject::activate (sender=0xa4446b0, m=0xb6288b74, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3547
#20 0xb5dc40f5 in QMenu::aboutToShow (this=0xa4446b0) at .moc/release-shared/moc_qmenu.cpp:165
#21 0xb5dc96e8 in qt_static_metacall (_a=0xbfe9deb8, _id=0, _o=0xa4446b0, _c=<optimized out>) at .moc/release-shared/moc_qmenu.cpp:74
#22 QMenu::qt_static_metacall (_o=0xa4446b0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfe9deb8) at .moc/release-shared/moc_qmenu.cpp:68
#23 0xb642773d in QMetaMethod::invoke (this=0xbfe9e01c, object=0xa4446b0, connectionType=Qt::DirectConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1664
#24 0xb6429d4f in QMetaObject::invokeMethod (obj=0xa4446b0, member=0xb2d48a27 "aboutToShow", type=Qt::AutoConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1179
#25 0xb2d379bf in DBusMenuImporter::updateMenu() () from /usr/lib/i386-linux-gnu/libdbusmenu-qt.so.2
#26 0xacea5123 in ?? () from /usr/lib/kde4/plasma_engine_statusnotifieritem.so
#27 0xaceab014 in ?? () from /usr/lib/kde4/plasma_engine_statusnotifieritem.so
#28 0xb73d4e42 in autoStart (this=<optimized out>) at ../../plasma/servicejob.cpp:47
#29 qt_static_metacall (_o=0xa3ae430, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./servicejob.moc:61
#30 Plasma::ServiceJob::qt_static_metacall (_o=0xa3ae430, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x93e13c8) at ./servicejob.moc:55
#31 0xb6430c01 in QMetaCallEvent::placeMetaCall (this=0x93e7390, object=0xa3ae430) at kernel/qobject.cpp:525
#32 0xb6439c7b in QObject::event (this=0xa3ae430, e=0x93e7390) at kernel/qobject.cpp:1195
#33 0xb5909ed4 in notify_helper (e=0x93e7390, receiver=0xa3ae430, this=0x8e7f818) at kernel/qapplication.cpp:4559
#34 QApplicationPrivate::notify_helper (this=0x8e7f818, receiver=0xa3ae430, e=0x93e7390) at kernel/qapplication.cpp:4531
#35 0xb590f30d in QApplication::notify (this=0x93e7390, receiver=0xa3ae430, e=0x93e7390) at kernel/qapplication.cpp:4288
#36 0xb6ab8b21 in KApplication::notify (this=0x8e4ca20, receiver=0xa3ae430, event=0x93e7390) at ../../kdeui/kernel/kapplication.cpp:311
#37 0xb641e97e in QCoreApplication::notifyInternal (this=0x8e4ca20, receiver=0xa3ae430, event=0x93e7390) at kernel/qcoreapplication.cpp:876
#38 0xb6422ad8 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#39 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8dc5130) at kernel/qcoreapplication.cpp:1500
#40 0xb6422e0c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1393
#41 0xb6451494 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#42 postEventSourceDispatch (s=0x8e7f5e8) at kernel/qeventdispatcher_glib.cpp:279
#43 0xb2badcda in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#44 0xb2bae0e5 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#45 0xb2bae1c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#46 0xb6451887 in QEventDispatcherGlib::processEvents (this=0x8dc5eb8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#47 0xb59c2aaa in QGuiEventDispatcherGlib::processEvents (this=0x8dc5eb8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#48 0xb641d50d in QEventLoop::processEvents (this=0xbfe9ec84, flags=...) at kernel/qeventloop.cpp:149
#49 0xb641d7a9 in QEventLoop::exec (this=0xbfe9ec84, flags=...) at kernel/qeventloop.cpp:204
#50 0xb6422eba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#51 0xb5907a74 in QApplication::exec () at kernel/qapplication.cpp:3820
#52 0xb7736a7b in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#53 0x0804850b in ?? ()
#54 0xb755c4d3 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
#55 0x08048531 in _start ()

Possible duplicates by query: bug 300264, bug 296175, bug 282415.

Reported using DrKonqi