Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: Normal login in to the KDE Environment. The plasma Desktop always crashes when I log in to me KDE session.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fb57b8d57c0 (LWP 5042))]

Thread 4 (Thread 0x7fb551222700 (LWP 5111)):
#0  0x00007fb5702481fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x28d2a38) at pthread_mutex_unlock.c:290
#2  0x00007fb56f737d79 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb56f738429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb57839ef3e in QEventDispatcherGlib::processEvents (this=0x28cd860, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fb578372cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fb578372ef7 in QEventLoop::exec (this=0x7fb551221cd0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007fb57828a27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007fb578355cbf in QInotifyFileSystemWatcherEngine::run (this=0x28d0da0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fb57828cd05 in QThreadPrivate::start (arg=0x28d0da0) at thread/qthread_unix.cpp:331
#10 0x00007fb56ca5156c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x00007fb570244efc in start_thread (arg=0x7fb551222700) at pthread_create.c:304
#12 0x00007fb57b1b889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fb54afbf700 (LWP 5112)):
#0  0x00007fb56f738013 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb56f738429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb57839ef3e in QEventDispatcherGlib::processEvents (this=0x1bbda40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#3  0x00007fb578372cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#4  0x00007fb578372ef7 in QEventLoop::exec (this=0x7fb54afbecd0, flags=...) at kernel/qeventloop.cpp:201
#5  0x00007fb57828a27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#6  0x00007fb578355cbf in QInotifyFileSystemWatcherEngine::run (this=0xf69aa0) at io/qfilesystemwatcher_inotify.cpp:248
#7  0x00007fb57828cd05 in QThreadPrivate::start (arg=0xf69aa0) at thread/qthread_unix.cpp:331
#8  0x00007fb56ca5156c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007fb570244efc in start_thread (arg=0x7fb54afbf700) at pthread_create.c:304
#10 0x00007fb57b1b889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fb54818d700 (LWP 5128)):
#0  0x00007fb56f75e370 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb56f736610 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb56f737d81 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb56f738792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb548c6b516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007fb56f75d2b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fb56ca5156c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#7  0x00007fb570244efc in start_thread (arg=0x7fb54818d700) at pthread_create.c:304
#8  0x00007fb57b1b889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb57b8d57c0 (LWP 5042)):
[KCrash Handler]
#6  0x00007fb577d05734 in QGraphicsLayoutItem::isLayout (this=0xf9fb90) at graphicsview/qgraphicslayoutitem.cpp:868
#7  0x00007fb577d046e2 in QGraphicsLayoutPrivate::activateRecursive (this=0x1cc7db0, item=0xf9fb90) at graphicsview/qgraphicslayout_p.cpp:181
#8  0x00007fb577d04724 in QGraphicsLayoutPrivate::activateRecursive (this=0x1cc7db0, item=0x1cc4340) at graphicsview/qgraphicslayout_p.cpp:194
#9  0x00007fb577d040db in QGraphicsLayout::activate (this=0x1cc4340) at graphicsview/qgraphicslayout.cpp:261
#10 0x00007fb577d04199 in QGraphicsLayout::widgetEvent (this=0x1cc4340, e=<optimized out>) at graphicsview/qgraphicslayout.cpp:389
#11 0x00007fb577d4285a in QGraphicsWidget::event (this=<optimized out>, event=0x29619d0) at graphicsview/qgraphicswidget.cpp:1379
#12 0x00007fb577724424 in notify_helper (e=0x29619d0, receiver=0x1cc6be0, this=0xcfd770) at kernel/qapplication.cpp:4486
#13 QApplicationPrivate::notify_helper (this=0xcfd770, receiver=0x1cc6be0, e=0x29619d0) at kernel/qapplication.cpp:4458
#14 0x00007fb577729291 in QApplication::notify (this=0xcde0c0, receiver=0x1cc6be0, e=0x29619d0) at kernel/qapplication.cpp:4365
#15 0x00007fb579022126 in KApplication::notify (this=0xcde0c0, receiver=0x1cc6be0, event=0x29619d0) at ../../kdeui/kernel/kapplication.cpp:311
#16 0x00007fb578373afc in QCoreApplication::notifyInternal (this=0xcde0c0, receiver=0x1cc6be0, event=0x29619d0) at kernel/qcoreapplication.cpp:787
#17 0x00007fb57837751f in sendEvent (event=0x29619d0, receiver=0x1cc6be0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xc3f430) at kernel/qcoreapplication.cpp:1428
#19 0x00007fb57839ea73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#20 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#21 0x00007fb56f737a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fb56f738258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fb56f738429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fb57839eed6 in QEventDispatcherGlib::processEvents (this=0xc40f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#25 0x00007fb5777cc07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007fb578372cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007fb578372ef7 in QEventLoop::exec (this=0x7fffdd3d9bc0, flags=...) at kernel/qeventloop.cpp:201
#28 0x00007fb578377789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#29 0x00007fb57b4b71a3 in kdemain (argc=1, argv=0x7fffdd3d9fa8) at ../../../../plasma/desktop/shell/main.cpp:120
#30 0x00007fb57b0f830d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffdd3d9fa8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffdd3d9f98) at libc-start.c:226
#31 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 241685.

Possible duplicates by query: bug 286131, bug 285701, bug 285526, bug 285399, bug 285193.

Reported using DrKonqi