Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.1.0-030100-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
just rebooted and hovered over the time display in the bottom right of the screen.  KDE crashed immediately.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f65189617a0 (LWP 2176))]

Thread 4 (Thread 0x7f64f7881700 (LWP 2177)):
#0  0x00007f6518242773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f650c7cdf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f650c7ce429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6515434f3e in QEventDispatcherGlib::processEvents (this=0x178b1c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f6515408cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f6515408ef7 in QEventLoop::exec (this=0x7f64f7880db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f651532027f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f65153ebcbf in QInotifyFileSystemWatcherEngine::run (this=0x178ce60) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f6515322d05 in QThreadPrivate::start (arg=0x178ce60) at thread/qthread_unix.cpp:331
#9  0x00007f650d2daefc in start_thread (arg=0x7f64f7881700) at pthread_create.c:304
#10 0x00007f651824e89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f64f4f1f700 (LWP 2178)):
#0  0x00007f650c7cd06b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f650c7cddfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f650c7ce429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6515434f3e in QEventDispatcherGlib::processEvents (this=0x1964d60, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f6515408cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f6515408ef7 in QEventLoop::exec (this=0x7f64f4f1edb0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f651532027f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f65153ebcbf in QInotifyFileSystemWatcherEngine::run (this=0x192e8e0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f6515322d05 in QThreadPrivate::start (arg=0x192e8e0) at thread/qthread_unix.cpp:331
#9  0x00007f650d2daefc in start_thread (arg=0x7f64f4f1f700) at pthread_create.c:304
#10 0x00007f651824e89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f64edbf5700 (LWP 2184)):
#0  0x00007f6518242773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f650c7cdf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f650c7ce792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f64ee6d3516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f650c7f32b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f650d2daefc in start_thread (arg=0x7f64edbf5700) at pthread_create.c:304
#6  0x00007f651824e89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f65189617a0 (LWP 2176)):
[KCrash Handler]
#6  Plasma::Calendar::calendarTable (this=0x0) at ../../../libs/plasmaclock/calendar.cpp:248
#7  0x00007f64fdf215c9 in Plasma::Calendar::dateHasDetails (this=<optimized out>, date=...) at ../../../libs/plasmaclock/calendar.cpp:306
#8  0x00007f64fdf1c60d in ClockApplet::updateTipContent (this=0x13b63e0) at ../../../libs/plasmaclock/clockapplet.cpp:276
#9  0x00007f64fdf1f228 in ClockApplet::qt_metacall (this=0x13b63e0, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x7fff5a5978b0) at ./clockapplet.moc:92
#10 0x00007f64fe147150 in Clock::qt_metacall (this=0x13b63e0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff5a5978b0) at ./clock.moc:80
#11 0x00007f65154114ae in QMetaMethod::invoke (this=0x7fff5a597a90, object=0x13b63e0, connectionType=Qt::DirectConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1597
#12 0x00007f6515413690 in QMetaObject::invokeMethod (obj=0x13b63e0, member=<optimized out>, type=Qt::AutoConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1151
#13 0x00007f6517e1b9f9 in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., member=0x7f6517efb967 "toolTipAboutToShow", obj=0x13b63e0) at /usr/include/qt4/QtCore/qobjectdefs.h:426
#14 Plasma::ToolTipManagerPrivate::showToolTip (this=0x100be90) at ../../plasma/tooltipmanager.cpp:379
#15 0x00007f6517e1be35 in Plasma::ToolTipManager::qt_metacall (this=0x100c080, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff5a597f50) at ./tooltipmanager.moc:88
#16 0x00007f651541ceba in QMetaObject::activate (sender=0x100b430, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3278
#17 0x00007f6515420789 in QObject::event (this=0x100b430, e=<optimized out>) at kernel/qobject.cpp:1181
#18 0x00007f65147ba424 in notify_helper (e=0x7fff5a5984b0, receiver=0x100b430, this=0xe9a170) at kernel/qapplication.cpp:4486
#19 QApplicationPrivate::notify_helper (this=0xe9a170, receiver=0x100b430, e=0x7fff5a5984b0) at kernel/qapplication.cpp:4458
#20 0x00007f65147bf291 in QApplication::notify (this=0xe86e00, receiver=0x100b430, e=0x7fff5a5984b0) at kernel/qapplication.cpp:4365
#21 0x00007f65160b8126 in KApplication::notify (this=0xe86e00, receiver=0x100b430, event=0x7fff5a5984b0) at ../../kdeui/kernel/kapplication.cpp:311
#22 0x00007f6515409afc in QCoreApplication::notifyInternal (this=0xe86e00, receiver=0x100b430, event=0x7fff5a5984b0) at kernel/qcoreapplication.cpp:787
#23 0x00007f6515436d62 in sendEvent (event=0x7fff5a5984b0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#24 QTimerInfoList::activateTimers (this=0xea1b40) at kernel/qeventdispatcher_unix.cpp:603
#25 0x00007f6515434538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#26 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#27 0x00007f650c7cda5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f650c7ce258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f650c7ce429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f6515434ed6 in QEventDispatcherGlib::processEvents (this=0xe22f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#31 0x00007f651486207e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#32 0x00007f6515408cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#33 0x00007f6515408ef7 in QEventLoop::exec (this=0x7fff5a598740, flags=...) at kernel/qeventloop.cpp:201
#34 0x00007f651540d789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#35 0x00007f651854d1a3 in kdemain (argc=1, argv=0x7fff5a598b28) at ../../../../plasma/desktop/shell/main.cpp:120
#36 0x00007f651818e30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff5a598b28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff5a598b18) at libc-start.c:226
#37 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 284462.

Possible duplicates by query: bug 284462.

Reported using DrKonqi