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-pae i686
Distribution: Ubuntu 10.10

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

Plasma crashes every time I log in. Alt+F2 and Alt+Tab works, but the desktop is dead. I did a clean install of Kubuntu, activated kubuntu-ppa-backports-maverick and got the problem. Figured it was a KDE-problem, so I deleated the .kde-folder but that did not help. Plasma crash every time.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma skrivbordskal (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb2998ad0 (LWP 1720))]

Thread 2 (Thread 0xaffe7b70 (LWP 1721)):
#0  0xb7892424 in __kernel_vsyscall ()
#1  0xb38354dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb778cd9d in pthread_cond_wait () from /lib/libc.so.6
#3  0xb4653877 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xb47521a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0xb46538c1 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xb47521a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0xb3830cc9 in start_thread () from /lib/libpthread.so.0
#6  0xb777f69e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb2998ad0 (LWP 1720)):
[KCrash Handler]
#7  0xb62352fd in QGraphicsItem::setVisible (this=0x73006d, visible=<value optimized out>) at graphicsview/qgraphicsitem.cpp:2411
#8  0xaf14dbf1 in hide (this=0x9a5b540) at /usr/include/qt4/QtGui/qgraphicsitem.h:221
#9  MicroBlog::downloadHistory (this=0x9a5b540) at ../../../applets/microblog/microblog.cpp:839
#10 0xaf150500 in MicroBlog::configChanged (this=0x9a5b540) at ../../../applets/microblog/microblog.cpp:344
#11 0xaf14a9ab in MicroBlog::init (this=0x9a5b540) at ../../../applets/microblog/microblog.cpp:88
#12 0xb74bbefd in Plasma::Containment::addApplet (this=0x9a5c588, applet=0x9a5b540, pos=..., delayInit=false) at ../../plasma/containment.cpp:921
#13 0xb74bc26d in Plasma::ContainmentPrivate::addApplet (this=0x9a4ed70, name=..., args=..., appletGeometry=..., id=0, delayInit=<value optimized out>) at ../../plasma/containment.cpp:2311
#14 0xb74bc4e9 in Plasma::Containment::addApplet (this=0x9a5c588, name=..., args=..., appletGeometry=...) at ../../plasma/containment.cpp:849
#15 0xb70cea46 in WorkspaceScripting::Containment::addWidget (context=0xaf2bb0a0, engine=0xbfcf2404) at ../../../libs/plasmagenericshell/scripting/containment.cpp:207
#16 0xb46b8a88 in QScript::FunctionWrapper::proxyCall (exec=<value optimized out>, callee=0xaf244980, thisObject=..., args=...) at bridge/qscriptfunction.cpp:82
#17 0xb45ba0f5 in QTJSC::NativeFuncWrapper::operator() (this=0xbfcf2048, exec=0xaf2bb0a0, jsobj=0xaf244980, thisValue=..., argList=...) at ../3rdparty/javascriptcore/JavaScriptCore/runtime/CallData.cpp:46
#18 0xb4590249 in QTJSC::cti_op_call_NotJSFunction (args=0xbfcf2094) at ../3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.cpp:1771
#19 0xaf6bcfb3 in ?? ()
#20 0xb4543180 in execute (this=0xaf6e7360, eval=0xaf6f9038, callFrame=0x9a5267c, thisObj=0xaf240000, globalRegisterOffset=9, scopeChain=0xaf6e12b8, exception=0xbfcf2220) at ../3rdparty/javascriptcore/JavaScriptCore/jit/JITCode.h:79
#21 QTJSC::Interpreter::execute (this=0xaf6e7360, eval=0xaf6f9038, callFrame=0x9a5267c, thisObj=0xaf240000, globalRegisterOffset=9, scopeChain=0xaf6e12b8, exception=0xbfcf2220) at ../3rdparty/javascriptcore/JavaScriptCore/interpreter/Interpreter.cpp:886
#22 0xb4543432 in QTJSC::Interpreter::execute (this=0xaf6e7360, eval=0xaf6f9038, callFrame=0x9a5267c, thisObj=0xaf240000, scopeChain=0xaf6e12b8, exception=0xbfcf2220) at ../3rdparty/javascriptcore/JavaScriptCore/interpreter/Interpreter.cpp:803
#23 0xb468d8f5 in QScriptEnginePrivate::evaluateHelper (this=0x999ae68, exec=0x9a5267c, sourceId=-1351739376, executable=0xaf6f9038, compile=@0xbfcf22cf) at api/qscriptengine.cpp:1359
#24 0xb46967d3 in QScriptEngine::evaluate (this=0xbfcf2404, program=..., fileName=..., lineNumber=1) at api/qscriptengine.cpp:2606
#25 0xb70d709f in WorkspaceScripting::ScriptEngine::evaluateScript (this=0xbfcf2404, script=..., path=...) at ../../../libs/plasmagenericshell/scripting/scriptengine.cpp:360
#26 0xb7846169 in DesktopCorona::evaluateScripts (this=0x97a6418, scripts=...) at ../../../../plasma/desktop/shell/desktopcorona.cpp:367
#27 0xb7846807 in DesktopCorona::loadDefaultLayout (this=0x97a6418) at ../../../../plasma/desktop/shell/desktopcorona.cpp:384
#28 0xb74d19b3 in Plasma::Corona::initializeLayout (this=0x97a6418, configName=...) at ../../plasma/corona.cpp:400
#29 0xb787052a in PlasmaApp::corona (this=0x979bfa0) at ../../../../plasma/desktop/shell/plasmaapp.cpp:797
#30 0xb787090b in PlasmaApp::setupDesktop (this=0x979bfa0) at ../../../../plasma/desktop/shell/plasmaapp.cpp:299
#31 0xb7873677 in PlasmaApp::qt_metacall (this=0x979bfa0, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0x9826b38) at ./plasmaapp.moc:155
#32 0xb66948ca in QMetaObject::metacall (object=0x979bfa0, cl=2937414193, idx=45, argv=0x9826b38) at kernel/qmetaobject.cpp:237
#33 0xb669fdf6 in QMetaCallEvent::placeMetaCall (this=0x9828430, object=0x979bfa0) at kernel/qobject.cpp:534
#34 0xb66a16a2 in QObject::event (this=0x979bfa0, e=0x1) at kernel/qobject.cpp:1219
#35 0xb668e9db in QCoreApplication::event (this=0x979bfa0, e=0x9828430) at kernel/qcoreapplication.cpp:1561
#36 0xb5b914d4 in QApplication::event (this=0x979bfa0, e=0x9828430) at kernel/qapplication.cpp:2439
#37 0xb5b8dfdc in QApplicationPrivate::notify_helper (this=0x97a1698, receiver=0x979bfa0, e=0x9828430) at kernel/qapplication.cpp:4396
#38 0xb5b9404e in QApplication::notify (this=0x979bfa0, receiver=0x979bfa0, e=0x9828430) at kernel/qapplication.cpp:3798
#39 0xb6cf082a in KApplication::notify (this=0x979bfa0, receiver=0x979bfa0, event=0x9828430) at ../../kdeui/kernel/kapplication.cpp:311
#40 0xb668eb3b in QCoreApplication::notifyInternal (this=0x979bfa0, receiver=0x979bfa0, event=0x9828430) at kernel/qcoreapplication.cpp:732
#41 0xb6691d8b in sendEvent (receiver=0x0, event_type=0, data=0x976a318) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#42 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x976a318) at kernel/qcoreapplication.cpp:1373
#43 0xb6691f4d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1266
#44 0xb66bda74 in sendPostedEvents (s=0x97a0df0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#45 postEventSourceDispatch (s=0x97a0df0) at kernel/qeventdispatcher_glib.cpp:277
#46 0xb378a855 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#47 0xb378e668 in ?? () from /lib/libglib-2.0.so.0
#48 0xb378e848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#49 0xb66bd565 in QEventDispatcherGlib::processEvents (this=0x9769fd8, flags=...) at kernel/qeventdispatcher_glib.cpp:415
#50 0xb5c4fbe5 in QGuiEventDispatcherGlib::processEvents (this=0x9769fd8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#51 0xb668d609 in QEventLoop::processEvents (this=0xbfcf2fb4, flags=) at kernel/qeventloop.cpp:149
#52 0xb668da8a in QEventLoop::exec (this=0xbfcf2fb4, flags=...) at kernel/qeventloop.cpp:201
#53 0xb669200f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#54 0xb5b8ce07 in QApplication::exec () at kernel/qapplication.cpp:3672
#55 0xb78521e7 in kdemain (argc=1, argv=0xbfcf31c4) at ../../../../plasma/desktop/shell/main.cpp:118
#56 0x080485bb in main (argc=1, argv=0xbfcf31c4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 271081, bug 270651, bug 270495, bug 270452, bug 270444.

Reported using DrKonqi