Bug 259586

Application: plasma-desktop (0.4)
KDE Platform Version: 4.5.85 (4.6 Beta2)
Qt Version: 4.7.1
Operating System: Linux 2.6.34.7-0.5-desktop x86_64
Distribution: "openSUSE 11.3 (x86_64)"

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

1. The Device Notifier shows external USB harddisks twice.
   Once with an USB icon and once with a harddisk icon.
   Mounting the external disk must be done via the harddisk icon
   and requires a root password 
2. Icons added to the taskbar don't respond to left mouse clicks.
   But otherwise everything worked.
3. Played a dosbox game.
   After closing the dosbox, the taskbar and any items in it didn't respond to left mouse clicks.
   The taskbar and any items in it does respond to right mouse clicks (context).
   With one exception, the Application Launcher opens when left clicking it,
   but any icons in it do not respond to left clicks.
4. Shutdowned the notebook by keeping the power button pressed.
5. After powering up and logging in, Plasma crashes.
6. After clicking away the Crash Repot Assistant, Plasma restarts.
7. Shutting-down the notebook by clicking the shutdown button in the App. Launcher
   now asks for the root password.

- Unusual behavior I noticed:
  See points 1., 2.,3, and 7. above..

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fb04fb43760 (LWP 3399))]

Thread 2 (Thread 0x7fb02df96710 (LWP 3448)):
#0  0x00007fb04d2216b3 in poll () from /lib64/libc.so.6
#1  0x00007fb04a093fd4 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fb04a094510 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fb04e817ae6 in QEventDispatcherGlib::processEvents (this=0xf008e0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb04e7ec262 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fb04e7ec475 in QEventLoop::exec (this=0x7fb02df95d20, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fb04e6ff1a4 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007fb04e7cd918 in QInotifyFileSystemWatcherEngine::run (this=0xef9a50) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fb04e701a1e in QThreadPrivate::start (arg=0xef9a50) at thread/qthread_unix.cpp:285
#9  0x00007fb041c03a33 in ?? () from /usr/X11R6/lib64/libGL.so.1
#10 0x00007fb04e472a4f in start_thread () from /lib64/libpthread.so.0
#11 0x00007fb04d22a82d in clone () from /lib64/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb04fb43760 (LWP 3399)):
[KCrash Handler]
#6  QGraphicsLayoutItem::isLayout (this=0x12) at graphicsview/qgraphicslayoutitem.cpp:805
#7  0x00007fb04df744ba in QGraphicsLayoutPrivate::addChildLayoutItem (this=<value optimized out>, layoutItem=0xd843c0) at graphicsview/qgraphicslayout_p.cpp:151
#8  0x00007fb04df76293 in QGraphicsLinearLayout::insertItem (this=<value optimized out>, index=0, item=0xd843c0) at graphicsview/qgraphicslinearlayout.cpp:284
#9  0x00007fb04556b491 in Plasma::Extender::itemAddedEvent (this=0xc1e300, item=0xd843a0, pos=<value optimized out>) at /usr/src/debug/kdelibs-4.5.85/plasma/extenders/extender.cpp:497
#10 0x00007fb04556b6d4 in Plasma::ExtenderPrivate::delayItemAddedEvent (this=0xc17700) at /usr/src/debug/kdelibs-4.5.85/plasma/extenders/extender.cpp:805
#11 0x00007fb04556cf82 in Plasma::Extender::qt_metacall (this=0xc1e300, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbe7d20) at /usr/src/debug/kdelibs-4.5.85/build/plasma/extender.moc:105
#12 0x00007fb04e800c6a in QObject::event (this=0xc1e300, e=<value optimized out>) at kernel/qobject.cpp:1211
#13 0x00007fb04dfb2aab in QGraphicsWidget::event (this=0xc1e300, event=0xd38410) at graphicsview/qgraphicswidget.cpp:1407
#14 0x00007fb04d98dcd4 in QApplicationPrivate::notify_helper (this=0x6ee6e0, receiver=0xc1e300, e=0xd38410) at kernel/qapplication.cpp:4445
#15 0x00007fb04d9961ca in QApplication::notify (this=<value optimized out>, receiver=0xc1e300, e=0xd38410) at kernel/qapplication.cpp:4324
#16 0x00007fb04f49fc66 in KApplication::notify (this=0x6e4210, receiver=0xc1e300, event=0xd38410) at /usr/src/debug/kdelibs-4.5.85/kdeui/kernel/kapplication.cpp:311
#17 0x00007fb04e7ece2c in QCoreApplication::notifyInternal (this=0x6e4210, receiver=0xc1e300, event=0xd38410) at kernel/qcoreapplication.cpp:732
#18 0x00007fb04e7f0625 in sendEvent (receiver=0x0, event_type=0, data=0x610420) at kernel/qcoreapplication.h:215
#19 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x610420) at kernel/qcoreapplication.cpp:1373
#20 0x00007fb04e8178f3 in sendPostedEvents (s=0x6f1990) at kernel/qcoreapplication.h:220
#21 postEventSourceDispatch (s=0x6f1990) at kernel/qeventdispatcher_glib.cpp:277
#22 0x00007fb04a093a93 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#23 0x00007fb04a094270 in ?? () from /usr/lib64/libglib-2.0.so.0
#24 0x00007fb04a094510 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#25 0x00007fb04e817a8f in QEventDispatcherGlib::processEvents (this=0x6ee3f0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#26 0x00007fb04da32eae in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007fb04e7ec262 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007fb04e7ec475 in QEventLoop::exec (this=0x7fffe8aeeda0, flags=...) at kernel/qeventloop.cpp:201
#29 0x00007fb04e7f08db in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#30 0x00007fb03da81808 in kdemain (argc=1, argv=0x616540) at /usr/src/debug/kdebase-workspace-4.5.85/plasma/desktop/shell/main.cpp:118
#31 0x0000000000407609 in _start ()

This bug may be a duplicate of or related to bug 259449.

Possible duplicates by query: bug 259449, bug 257188, bug 256245.

Reported using DrKonqi