Application: plasma-desktop (0.3)
KDE Platform Version: 4.5.3 (KDE 4.5.3)
Qt Version: 4.7.0
Operating System: Linux 2.6.32-31-generic x86_64
Distribution: Ubuntu 10.04.2 LTS

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

After adding some software sources (I do not remember them) and actualizing Kubuntu 10.04 (lucid, with Hardy bacports repositories added) Plasma crashes after every login

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f5b67ce77a0 (LWP 1496))]

Thread 2 (Thread 0x7f5b43485700 (LWP 1516)):
#0  0x00007f5b676f2f93 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f5b5c37a4a9 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f5b5c37a8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f5b64d721d6 in QEventDispatcherGlib::processEvents (this=0x7f5b3c0008b0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#4  0x00007f5b64d44dd2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f5b64d451bc in QEventLoop::exec (this=0x7f5b43484d70, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f5b64c5036d in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007f5b64d24b48 in QInotifyFileSystemWatcherEngine::run (this=0x219e9d0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f5b64c532ee in QThreadPrivate::start (arg=0x219e9d0) at thread/qthread_unix.cpp:266
#9  0x00007f5b649c19ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007f5b676ff70d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f5b67ce77a0 (LWP 1496)):
[KCrash Handler]
#6  0x00007f5b644c4b04 in QGraphicsLayoutItem::isLayout (this=0x26d4ea0) at graphicsview/qgraphicslayoutitem.cpp:804
#7  0x00007f5b644c3ba2 in QGraphicsLayoutPrivate::activateRecursive (this=0x1ccf050, item=0x26d4ea0) at graphicsview/qgraphicslayout_p.cpp:181
#8  0x00007f5b644c3be0 in QGraphicsLayoutPrivate::activateRecursive (this=0x1ccf050, item=0x1cf1cf0) at graphicsview/qgraphicslayout_p.cpp:189
#9  0x00007f5b644c3563 in QGraphicsLayout::activate (this=0x1cf1cf0) at graphicsview/qgraphicslayout.cpp:261
#10 0x00007f5b644c3621 in QGraphicsLayout::widgetEvent (this=0x1cf1cf0, e=0x26d4ea0) at graphicsview/qgraphicslayout.cpp:369
#11 0x00007f5b6450833f in QGraphicsWidget::event (this=0x1cf2e10, event=0x1a82d60) at graphicsview/qgraphicswidget.cpp:1329
#12 0x00007f5b63e946ec in QApplicationPrivate::notify_helper (this=0x17e1750, receiver=0x1cf2e10, e=0x1a82d60) at kernel/qapplication.cpp:4396
#13 0x00007f5b63e9a1dd in QApplication::notify (this=0x17cc650, receiver=0x1cf2e10, e=0x1a82d60) at kernel/qapplication.cpp:4277
#14 0x00007f5b659fe926 in KApplication::notify (this=0x17cc650, receiver=0x1cf2e10, event=0x1a82d60) at ../../kdeui/kernel/kapplication.cpp:310
#15 0x00007f5b64d460ac in QCoreApplication::notifyInternal (this=0x17cc650, receiver=0x1cf2e10, event=0x1a82d60) at kernel/qcoreapplication.cpp:732
#16 0x00007f5b64d48fd2 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x17b0d20) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x17b0d20) at kernel/qcoreapplication.cpp:1373
#18 0x00007f5b64d72643 in QCoreApplication::sendPostedEvents (s=0x17e4c10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#19 postEventSourceDispatch (s=0x17e4c10) at kernel/qeventdispatcher_glib.cpp:277
#20 0x00007f5b5c3768c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#21 0x00007f5b5c37a748 in ?? () from /lib/libglib-2.0.so.0
#22 0x00007f5b5c37a8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#23 0x00007f5b64d72183 in QEventDispatcherGlib::processEvents (this=0x17b0860, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#24 0x00007f5b63f4697e in QGuiEventDispatcherGlib::processEvents (this=0x26d4ea0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007f5b64d44dd2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#26 0x00007f5b64d451bc in QEventLoop::exec (this=0x7fff8edf5630, flags=) at kernel/qeventloop.cpp:201
#27 0x00007f5b64d4926b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#28 0x00007f5b679d9083 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#29 0x00007f5b67637c4d in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fff8edf5a08) at libc-start.c:226
#30 0x00000000004006c9 in _start ()

Possible duplicates by query: bug 271899, bug 271864, bug 271148, bug 269347, bug 268413.

Reported using DrKonqi