Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-10-generic i686
Distribution: Ubuntu 11.04

-- Information about the crash:
My system crashes on every day at the the time i put my computer on.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7852ad0 (LWP 1427))]

Thread 3 (Thread 0xb46d9b70 (LWP 1428)):
#0  0x0151437f in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x00554616 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0x015a2924 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x015a3270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x015a3524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x066d4577 in QEventDispatcherGlib::processEvents (this=0x8ea0290, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x066a6289 in QEventLoop::processEvents (this=0xb46d9280, flags=...) at kernel/qeventloop.cpp:149
#7  0x066a6522 in QEventLoop::exec (this=0xb46d9280, flags=...) at kernel/qeventloop.cpp:201
#8  0x065b02a0 in QThread::exec (this=0x8e9ebe8) at thread/qthread.cpp:492
#9  0x06687fdb in QInotifyFileSystemWatcherEngine::run (this=0x8e9ebe8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x065b2da2 in QThreadPrivate::start (arg=0x8e9ebe8) at thread/qthread_unix.cpp:320
#11 0x01511e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x0054673e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xade56b70 (LWP 1429)):
#0  0x00eb5d41 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x06608dd8 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x066d54f2 in updateCurrentTime (this=0x8ff10b4, tm=...) at kernel/qeventdispatcher_unix.cpp:339
#4  QTimerInfoList::timerWait (this=0x8ff10b4, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x066d3d32 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xade560cc) at kernel/qeventdispatcher_glib.cpp:136
#6  0x066d3dcd in timerSourcePrepare (source=0x8ff1080, timeout=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x015a1fd4 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x015a2e63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x015a3524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x066d4577 in QEventDispatcherGlib::processEvents (this=0x904ce00, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x066a6289 in QEventLoop::processEvents (this=0xade56280, flags=...) at kernel/qeventloop.cpp:149
#12 0x066a6522 in QEventLoop::exec (this=0xade56280, flags=...) at kernel/qeventloop.cpp:201
#13 0x065b02a0 in QThread::exec (this=0x9051110) at thread/qthread.cpp:492
#14 0x06687fdb in QInotifyFileSystemWatcherEngine::run (this=0x9051110) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x065b2da2 in QThreadPrivate::start (arg=0x9051110) at thread/qthread_unix.cpp:320
#16 0x01511e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x0054673e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb7852ad0 (LWP 1427)):
[KCrash Handler]
#7  0x07b288ca in QGraphicsLayoutItem::isLayout (this=0x97d30f8) at graphicsview/qgraphicslayoutitem.cpp:868
#8  0x07b276bf in QGraphicsLayoutPrivate::activateRecursive (this=0x89c6c88, item=0x97d30f8) at graphicsview/qgraphicslayout_p.cpp:181
#9  0x07b276fd in QGraphicsLayoutPrivate::activateRecursive (this=0x89c6c88, item=0x8980b88) at graphicsview/qgraphicslayout_p.cpp:189
#10 0x07b27176 in QGraphicsLayout::activate (this=0x8980b88) at graphicsview/qgraphicslayout.cpp:261
#11 0x07b2726c in QGraphicsLayout::widgetEvent (this=0x8980b88, e=0x97e09e8) at graphicsview/qgraphicslayout.cpp:372
#12 0x07b689dc in QGraphicsWidget::event (this=0x897f828, event=0x97e09e8) at graphicsview/qgraphicswidget.cpp:1347
#13 0x074ced24 in QApplicationPrivate::notify_helper (this=0x8818f20, receiver=0x897f828, e=0x97e09e8) at kernel/qapplication.cpp:4462
#14 0x074d38ce in QApplication::notify (this=0x880f190, receiver=0x897f828, e=0x97e09e8) at kernel/qapplication.cpp:3862
#15 0x0110d3ca in KApplication::notify (this=0x880f190, receiver=0x897f828, event=0x97e09e8) at ../../kdeui/kernel/kapplication.cpp:311
#16 0x066a70bb in QCoreApplication::notifyInternal (this=0x880f190, receiver=0x897f828, event=0x97e09e8) at kernel/qcoreapplication.cpp:731
#17 0x066aac79 in sendEvent (receiver=0x0, event_type=0, data=0x87bbf68) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x87bbf68) at kernel/qcoreapplication.cpp:1372
#19 0x066aae0d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#20 0x066d43c4 in sendPostedEvents (s=0x881a078) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#21 postEventSourceDispatch (s=0x881a078) at kernel/qeventdispatcher_glib.cpp:277
#22 0x015a2aa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0x015a3270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0x015a3524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0x066d453c in QEventDispatcherGlib::processEvents (this=0x87bbac0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#26 0x075851e5 in QGuiEventDispatcherGlib::processEvents (this=0x87bbac0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x066a6289 in QEventLoop::processEvents (this=0xbf813c54, flags=...) at kernel/qeventloop.cpp:149
#28 0x066a6522 in QEventLoop::exec (this=0xbf813c54, flags=...) at kernel/qeventloop.cpp:201
#29 0x066aaecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#30 0x074cc8e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#31 0x003e35a5 in kdemain (argc=1, argv=0xbf813e64) at ../../../../plasma/desktop/shell/main.cpp:118
#32 0x080485cb in main (argc=1, argv=0xbf813e64) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 281291, bug 281228, bug 280173, bug 276957, bug 275762.

Reported using DrKonqi