Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.1 (4.7.1)
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:
Show activity manafer -> Change the icon of an activity (the select icon dialog opens) -> Click "Other Icons" -> Clicke "Browse" -> Click "Cancel" in the Open Dialog -> Click "Cancel" in the Select icon Dialog -> Plasma crahses sometimes (approxmitaly in 50% of the cases I tried).

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f7ee754c7c0 (LWP 1682))]

Thread 3 (Thread 0x7f7ec2f42700 (LWP 1683)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f7ec2f419f0 in ?? ()
#2  0x00007fff551987e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 2 (Thread 0x7f7ebaa18700 (LWP 1684)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f7ebaa179f0 in ?? ()
#2  0x00007fff551987e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (Thread 0x7f7ee754c7c0 (LWP 1682)):
[KCrash Handler]
#6  QMetaObject::changeGuard (ptr=0x3bab400, o=0x5482c80) at kernel/qobject.cpp:456
#7  0x00007f7ee398ec80 in operator= (p=<optimized out>, this=0x3bab400) at ../../include/QtCore/../../src/corelib/kernel/qpointer.h:68
#8  QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent (this=0x3bab220, event=0x7fff55029900) at graphicsview/qgraphicsproxywidget.cpp:284
#9  0x00007f7ee39717e3 in QGraphicsItem::sceneEvent (this=0x39a7b70, event=0x7fff55029900) at graphicsview/qgraphicsitem.cpp:6730
#10 0x00007f7ee3999c2a in QGraphicsScenePrivate::sendMouseEvent (this=0x22ed820, mouseEvent=0x7fff55029900) at graphicsview/qgraphicsscene.cpp:1291
#11 0x00007f7ee399a5f5 in QGraphicsScene::mouseReleaseEvent (this=<optimized out>, mouseEvent=0x7fff55029900) at graphicsview/qgraphicsscene.cpp:4121
#12 0x00007f7ee39a886f in QGraphicsScene::event (this=0x22ee8e0, event=0x7fff55029900) at graphicsview/qgraphicsscene.cpp:3453
#13 0x00007f7ee33aa424 in notify_helper (e=0x7fff55029900, receiver=0x22ee8e0, this=0x2170d80) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0x2170d80, receiver=0x22ee8e0, e=0x7fff55029900) at kernel/qapplication.cpp:4458
#15 0x00007f7ee33af291 in QApplication::notify (this=0x215e940, receiver=0x22ee8e0, e=0x7fff55029900) at kernel/qapplication.cpp:4365
#16 0x00007f7ee4ca81e6 in KApplication::notify (this=0x215e940, receiver=0x22ee8e0, event=0x7fff55029900) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f7ee3ff9afc in QCoreApplication::notifyInternal (this=0x215e940, receiver=0x22ee8e0, event=0x7fff55029900) at kernel/qcoreapplication.cpp:787
#18 0x00007f7ee39c3f76 in QGraphicsView::mouseReleaseEvent (this=0x423a8e0, event=0x7fff5502a0e0) at graphicsview/qgraphicsview.cpp:3336
#19 0x00007f7ee33fac9a in QWidget::event (this=0x423a8e0, event=0x7fff5502a0e0) at kernel/qwidget.cpp:8295
#20 0x00007f7ee37a34f6 in QFrame::event (this=0x423a8e0, e=0x7fff5502a0e0) at widgets/qframe.cpp:557
#21 0x00007f7ee39c6d3b in QGraphicsView::viewportEvent (this=0x423a8e0, event=0x7fff5502a0e0) at graphicsview/qgraphicsview.cpp:2864
#22 0x00007f7ee3ff9c88 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x4f23280, event=0x7fff5502a0e0) at kernel/qcoreapplication.cpp:902
#23 0x00007f7ee33aa3ef in notify_helper (e=0x7fff5502a0e0, receiver=0x4f23280, this=0x2170d80) at kernel/qapplication.cpp:4482
#24 QApplicationPrivate::notify_helper (this=0x2170d80, receiver=0x4f23280, e=0x7fff5502a0e0) at kernel/qapplication.cpp:4458
#25 0x00007f7ee33afc6b in QApplication::notify (this=<optimized out>, receiver=0x4f23280, e=0x7fff5502a0e0) at kernel/qapplication.cpp:4047
#26 0x00007f7ee4ca81e6 in KApplication::notify (this=0x215e940, receiver=0x4f23280, event=0x7fff5502a0e0) at ../../kdeui/kernel/kapplication.cpp:311
#27 0x00007f7ee3ff9afc in QCoreApplication::notifyInternal (this=0x215e940, receiver=0x4f23280, event=0x7fff5502a0e0) at kernel/qcoreapplication.cpp:787
#28 0x00007f7ee33ab3f2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#29 QApplicationPrivate::sendMouseEvent (receiver=0x4f23280, event=0x7fff5502a0e0, alienWidget=0x4f23280, nativeWidget=0x369f760, buttonDown=0x4f23280, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#30 0x00007f7ee342a945 in QETWidget::translateMouseEvent (this=0x369f760, event=<optimized out>) at kernel/qapplication_x11.cpp:4568
#31 0x00007f7ee34298be in QApplication::x11ProcessEvent (this=0x215e940, event=0x7fff5502a900) at kernel/qapplication_x11.cpp:3690
#32 0x00007f7ee3452412 in x11EventSourceDispatch (s=0x216ebc0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0x00007f7edb3bda5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f7edb3be258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f7edb3be429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f7ee4024ed6 in QEventDispatcherGlib::processEvents (this=0x20baf40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#37 0x00007f7ee345207e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x00007f7ee3ff8cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#39 0x00007f7ee3ff8ef7 in QEventLoop::exec (this=0x7fff5502acd0, flags=...) at kernel/qeventloop.cpp:201
#40 0x00007f7ee3ffd789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#41 0x00007f7ee713b1a3 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#42 0x00007f7ee6d7c30d in __libc_start_main (main=0x400640, argc=1, ubp_av=0x7fff5502b0b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff5502b0a8) at libc-start.c:226
#43 0x0000000000400671 in _start ()

Possible duplicates by query: bug 284486, bug 275046, bug 274399, bug 269428, bug 267463.

Reported using DrKonqi