Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.4 (4.6.4)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed: The Nepomuk icon was hiding and unhiding continuously as it indexes files, making it almost impossible to change any settings in the System Tray application. I used Alt+D, S to access the settings. I made a few changes, to always show the Neopmuk tray icon to keep it from hijacking the tray. I also disabled some of the shown icons to see what it would do, then came the crash. Fresh install of Kubuntu desktop w/updates.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fc33ad617c0 (LWP 1660))]

Thread 4 (Thread 0x7fc315571700 (LWP 1731)):
#0  0x00007fc337861be3 in socketNotifierSourcePrepare (timeout=0x7fc315570b4c) at kernel/qeventdispatcher_glib.cpp:73
#1  0x00007fc32f0350a2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc32f035f9d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc32f036639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc337862446 in QEventDispatcherGlib::processEvents (this=0x1705410, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fc337836882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fc337836abc in QEventLoop::exec (this=0x7fc315570cd0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007fc33774d924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#8  0x00007fc337818c2f in QInotifyFileSystemWatcherEngine::run (this=0x1703c80) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fc337750175 in QThreadPrivate::start (arg=0x1703c80) at thread/qthread_unix.cpp:320
#10 0x00007fc32d0bb853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x00007fc32f939d8c in start_thread (arg=0x7fc315571700) at pthread_create.c:304
#12 0x00007fc33a66204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fc30efbf700 (LWP 1732)):
#0  0x00007fc32f035746 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc32f036122 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc32f036639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc337862446 in QEventDispatcherGlib::processEvents (this=0xe4c4f0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fc337836882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc337836abc in QEventLoop::exec (this=0x7fc30efbecd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fc33774d924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007fc337818c2f in QInotifyFileSystemWatcherEngine::run (this=0x176fc00) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fc337750175 in QThreadPrivate::start (arg=0x176fc00) at thread/qthread_unix.cpp:320
#9  0x00007fc32d0bb853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007fc32f939d8c in start_thread (arg=0x7fc30efbf700) at pthread_create.c:304
#11 0x00007fc33a66204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fc30b30b700 (LWP 1738)):
#0  pthread_mutex_lock (mutex=0x1aae9b8) at forward.c:182
#1  0x00007fc32f0361e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc32f0369f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc30c422c44 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fc32f05d3e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc32d0bb853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007fc32f939d8c in start_thread (arg=0x7fc30b30b700) at pthread_create.c:304
#7  0x00007fc33a66204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fc33ad617c0 (LWP 1660)):
[KCrash Handler]
#6  QGraphicsLayoutItemPrivate::hasHeightForWidth (this=0x0) at graphicsview/qgraphicslayoutitem.cpp:280
#7  0x00007fc337225e91 in QGridLayoutItem::hasDynamicConstraint (this=0x2165590) at graphicsview/qgridlayoutengine.cpp:576
#8  0x00007fc337227149 in QGridLayoutEngine::ensureDynamicConstraint (this=0xfc3580) at graphicsview/qgridlayoutengine.cpp:1657
#9  0x00007fc3372271f9 in QGridLayoutEngine::hasDynamicConstraint (this=0xfc3580) at graphicsview/qgridlayoutengine.cpp:1677
#10 0x00007fc33722af48 in QGridLayoutEngine::sizeHint (this=0xfc3580, styleInfo=..., which=Qt::MaximumSize, constraint=...) at graphicsview/qgridlayoutengine.cpp:1134
#11 0x00007fc3371b5bda in QGraphicsGridLayout::sizeHint (this=<value optimized out>, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicsgridlayout.cpp:656
#12 0x00007fc3371e0678 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0xfc3470, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:169
#13 0x00007fc3371e0f61 in QGraphicsLayoutItem::effectiveSizeHint (this=<value optimized out>, which=<value optimized out>, constraint=<value optimized out>) at graphicsview/qgraphicslayoutitem.cpp:818
#14 0x00007fc33721d431 in QGraphicsWidget::sizeHint (this=<value optimized out>, which=<value optimized out>, constraint=<value optimized out>) at graphicsview/qgraphicswidget.cpp:729
#15 0x00007fc3371e075b in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0xfc3380, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:175
#16 0x00007fc3371e0f61 in QGraphicsLayoutItem::effectiveSizeHint (this=<value optimized out>, which=<value optimized out>, constraint=<value optimized out>) at graphicsview/qgraphicslayoutitem.cpp:818
#17 0x00007fc3371e11c4 in QGraphicsLayoutItem::minimumSize (this=<value optimized out>) at graphicsview/qgraphicslayoutitem.cpp:526
#18 0x00007fc33a1c95d9 in Plasma::PopupAppletPrivate::popupConstraintsEvent (this=0xf7f750, constraints=...) at ../../plasma/popupapplet.cpp:252
#19 0x00007fc33a171ab9 in Plasma::Applet::flushPendingConstraintsEvents (this=0xf7fce0) at ../../plasma/applet.cpp:1341
#20 0x00007fc33a1726dd in Plasma::Applet::timerEvent (this=0xf7fce0, event=<value optimized out>) at ../../plasma/applet.cpp:2432
#21 0x00007fc33784b1c9 in QObject::event (this=0xf7fce0, e=<value optimized out>) at kernel/qobject.cpp:1190
#22 0x00007fc33721dacb in QGraphicsWidget::event (this=0xf7fce0, event=0x7ffffffd6220) at graphicsview/qgraphicswidget.cpp:1423
#23 0x00007fc336bf89e4 in QApplicationPrivate::notify_helper (this=0xcf5840, receiver=0xf7fce0, e=0x7ffffffd6220) at kernel/qapplication.cpp:4462
#24 0x00007fc336bfd3aa in QApplication::notify (this=<value optimized out>, receiver=0xf7fce0, e=0x7ffffffd6220) at kernel/qapplication.cpp:4341
#25 0x00007fc3384f0716 in KApplication::notify (this=0xce5870, receiver=0xf7fce0, event=0x7ffffffd6220) at ../../kdeui/kernel/kapplication.cpp:311
#26 0x00007fc33783749c in QCoreApplication::notifyInternal (this=0xce5870, receiver=0xf7fce0, event=0x7ffffffd6220) at kernel/qcoreapplication.cpp:731
#27 0x00007fc337864f12 in sendEvent (this=0xcfc2d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#28 QTimerInfoList::activateTimers (this=0xcfc2d0) at kernel/qeventdispatcher_unix.cpp:604
#29 0x00007fc337861cf4 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#30 0x00007fc32f035bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007fc32f0363a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007fc32f036639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fc3378623ef in QEventDispatcherGlib::processEvents (this=0xc1a340, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#34 0x00007fc336c9fdfe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#35 0x00007fc337836882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#36 0x00007fc337836abc in QEventLoop::exec (this=0x7ffffffd6490, flags=...) at kernel/qeventloop.cpp:201
#37 0x00007fc33783aecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#38 0x00007fc33a94eb4c in kdemain (argc=1, argv=0x7ffffffd6898) at ../../../../plasma/desktop/shell/main.cpp:120
#39 0x00007fc33a59aeff in __libc_start_main (main=0x400740 <main(int, char**)>, argc=1, ubp_av=0x7ffffffd6898, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7ffffffd6888) at libc-start.c:226
#40 0x0000000000400669 in _start ()

Possible duplicates by query: bug 274819, bug 273082.

Reported using DrKonqi