Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-15-generic-pae i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: after performing upgrade (apt-get update && apt-get upgrade) yesterday, and restarting the system, plasma-desktop always crashes immediately after logging into KDE. When trying to launch plasma-desktop from a Konsole, the following appears:

hurak@hurak-laptop:~$ plasma-desktop
QDBusObjectPath: invalid path ""
Object::connect: No such signal QDBusAbstractInterface::Changed()
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
QGridLayoutEngine::addItem: Cell (1, 1) already taken
link XMLID_34_ hasn't been detected!
link XMLID_34_ hasn't been detected!
link XMLID_36_ hasn't been detected!
KCrash: Attempting to start /usr/bin/plasma-desktop from kdeinit
sock_file=/home/hurak/.kde/socket-hurak-laptop/kdeinit4__0
plasma-desktop(2480): Communication problem with  "plasma-desktop" , it probably crashed. 
Error message was:  "org.freedesktop.DBus.Error.NoReply" : " "Message did not receive a reply (timeout by message bus)" "

The crash can be reproduced every time.

-- Backtrace:
Application: Shell plochy Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb1eaeb20 (LWP 2481))]

Thread 3 (Thread 0xab0edb70 (LWP 2482)):
#0  0xb2f83d10 in __GI_clock_gettime (clock_id=1, tp=0xab0ed018) at ../sysdeps/unix/clock_gettime.c:116
#1  0xb63ac7d5 in do_gettime (frac=0xab0ed010, sec=0xab0ed008) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb647f4b6 in QTimerInfoList::updateCurrentTime (this=0x896378c) at kernel/qeventdispatcher_unix.cpp:339
#4  0xb647f80a in QTimerInfoList::timerWait (this=0x896378c, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb647e053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xab0ed11c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb647e0ed in timerSourcePrepare (source=0x8963758, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb2ec988c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2eca637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb2ecac2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb647eb37 in QEventDispatcherGlib::processEvents (this=0x8963700, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb644f1dd in QEventLoop::processEvents (this=0xab0ed2a0, flags=...) at kernel/qeventloop.cpp:149
#12 0xb644f421 in QEventLoop::exec (this=0xab0ed2a0, flags=...) at kernel/qeventloop.cpp:201
#13 0xb635290b in QThread::exec (this=0x8962200) at thread/qthread.cpp:498
#14 0xb642fe2d in QInotifyFileSystemWatcherEngine::run (this=0x8962200) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb63557b3 in QThreadPrivate::start (arg=0x8962200) at thread/qthread_unix.cpp:331
#16 0xb2fe4d31 in start_thread (arg=0xab0edb70) at pthread_create.c:304
#17 0xb76370ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa9604b70 (LWP 2483)):
#0  0xb2f83d10 in __GI_clock_gettime (clock_id=1, tp=0xa9604018) at ../sysdeps/unix/clock_gettime.c:116
#1  0xb63ac7d5 in do_gettime (frac=0xa9604010, sec=0xa9604008) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb647f4b6 in QTimerInfoList::updateCurrentTime (this=0x8a9c0b4) at kernel/qeventdispatcher_unix.cpp:339
#4  0xb647f80a in QTimerInfoList::timerWait (this=0x8a9c0b4, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb647e053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa960411c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb647e0ed in timerSourcePrepare (source=0x8a9c080, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb2ec988c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2eca637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb2ecac2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb647eb37 in QEventDispatcherGlib::processEvents (this=0x8a9a8d0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb644f1dd in QEventLoop::processEvents (this=0xa96042a0, flags=...) at kernel/qeventloop.cpp:149
#12 0xb644f421 in QEventLoop::exec (this=0xa96042a0, flags=...) at kernel/qeventloop.cpp:201
#13 0xb635290b in QThread::exec (this=0x85bfce8) at thread/qthread.cpp:498
#14 0xb642fe2d in QInotifyFileSystemWatcherEngine::run (this=0x85bfce8) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb63557b3 in QThreadPrivate::start (arg=0x85bfce8) at thread/qthread_unix.cpp:331
#16 0xb2fe4d31 in start_thread (arg=0xa9604b70) at pthread_create.c:304
#17 0xb76370ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb1eaeb20 (LWP 2481)):
[KCrash Handler]
#7  0xb738765d in Plasma::PopupAppletPrivate::popupConstraintsEvent (this=0x8db0760, constraints=...) at ../../plasma/popupapplet.cpp:239
#8  0xb73262c2 in Plasma::Applet::flushPendingConstraintsEvents (this=0x8df6f80) at ../../plasma/applet.cpp:1361
#9  0xb087f831 in SystemTray::PlasmoidTask::forwardConstraintsEvent (this=0x8dac268, constraints=...) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtask.cpp:128
#10 0xb087de3d in SystemTray::PlasmoidProtocol::forwardConstraintsEvent (this=0x85b6fc8, constraints=..., host=0x85c7f90) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:54
#11 0xb0874bab in SystemTray::Manager::forwardConstraintsEvent (this=0x85b49f8, constraints=..., host=0x85c7f90) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:100
#12 0xb0888d39 in SystemTray::Applet::constraintsEvent (this=0x85c7f90, constraints=...) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:261
#13 0xb73262e1 in Plasma::Applet::flushPendingConstraintsEvents (this=0x85c7f90) at ../../plasma/applet.cpp:1365
#14 0xb73383e0 in Plasma::ContainmentPrivate::initApplets (this=0x835fc08) at ../../plasma/containment.cpp:470
#15 0xb734dcb1 in Plasma::CoronaPrivate::importLayout (this=0x82248d0, conf=..., mergeConfig=false) at ../../plasma/corona.cpp:1066
#16 0xb734eaf5 in Plasma::Corona::loadLayout (this=0x8224868, configName=...) at ../../plasma/corona.cpp:278
#17 0xb734ebce in Plasma::Corona::initializeLayout (this=0x8224868, configName=...) at ../../plasma/corona.cpp:181
#18 0xb7756671 in PlasmaApp::corona (this=0x8143320) at ../../../../plasma/desktop/shell/plasmaapp.cpp:831
#19 0xb77569dc in PlasmaApp::setupDesktop (this=0x8143320) at ../../../../plasma/desktop/shell/plasmaapp.cpp:312
#20 0xb7758335 in PlasmaApp::qt_metacall (this=0x8143320, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x81e5fb0) at ./plasmaapp.moc:142
#21 0xb6456b7d in metacall (argv=0x81e5fb0, idx=41, cl=QMetaObject::InvokeMetaMethod, object=0x8143320) at kernel/qmetaobject.cpp:237
#22 QMetaObject::metacall (object=0x8143320, cl=QMetaObject::InvokeMetaMethod, idx=41, argv=0x81e5fb0) at kernel/qmetaobject.cpp:232
#23 0xb6461685 in QMetaCallEvent::placeMetaCall (this=0x82551d0, object=0x8143320) at kernel/qobject.cpp:535
#24 0xb6468b52 in QObject::event (this=0x8143320, e=0x82551d0) at kernel/qobject.cpp:1217
#25 0xb645077a in QCoreApplication::event (this=0x8143320, e=0x82551d0) at kernel/qcoreapplication.cpp:1616
#26 0xb59803d1 in QApplication::event (this=0x8143320, e=0x82551d0) at kernel/qapplication.cpp:2527
#27 0xb597bd54 in notify_helper (e=0x82551d0, receiver=0x8143320, this=0x8153730) at kernel/qapplication.cpp:4486
#28 QApplicationPrivate::notify_helper (this=0x8153730, receiver=0x8143320, e=0x82551d0) at kernel/qapplication.cpp:4458
#29 0xb5981103 in QApplication::notify (this=0x82551d0, receiver=0x8143320, e=0x82551d0) at kernel/qapplication.cpp:3886
#30 0xb6ab5971 in KApplication::notify (this=0x8143320, receiver=0x8143320, event=0x82551d0) at ../../kdeui/kernel/kapplication.cpp:311
#31 0xb645019e in QCoreApplication::notifyInternal (this=0x8143320, receiver=0x8143320, event=0x82551d0) at kernel/qcoreapplication.cpp:787
#32 0xb6453f93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#33 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x80b62e0) at kernel/qcoreapplication.cpp:1428
#34 0xb64540ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1321
#35 0xb647e6a4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#36 postEventSourceDispatch (s=0x814f930) at kernel/qeventdispatcher_glib.cpp:277
#37 0xb2eca25f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#38 0xb2eca990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#39 0xb2ecac2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#40 0xb647eada in QEventDispatcherGlib::processEvents (this=0x80b7200, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#41 0xb5a33e3a in QGuiEventDispatcherGlib::processEvents (this=0x80b7200, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#42 0xb644f1dd in QEventLoop::processEvents (this=0xbfad4d44, flags=...) at kernel/qeventloop.cpp:149
#43 0xb644f421 in QEventLoop::exec (this=0xbfad4d44, flags=...) at kernel/qeventloop.cpp:201
#44 0xb645419d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#45 0xb59798f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#46 0xb773a18b in kdemain (argc=1, argv=0xbfad4f44) at ../../../../plasma/desktop/shell/main.cpp:120
#47 0x0804850b in main (argc=1, argv=0xbfad4f44) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 288940, bug 271443.

Reported using DrKonqi