Bug 310463

Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.5 (4.8.5) "release 2"
Qt Version: 4.8.1
Operating System: Linux 3.4.11-2.16-desktop x86_64
Distribution: "openSUSE 12.2 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
I was moving clock from task bar to desktop
- Unusual behavior I noticed:
Black screen whith the icon of my dropbox

The crash can be reproduced every time.

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (kdeinit4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f651bd86780 (LWP 3126))]

Thread 4 (Thread 0x7f64fab5b700 (LWP 3167)):
#0  0x00007f651a64f8f4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f650f611217 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f650f91e640 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f650f611249 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f651a64be0e in start_thread () from /lib64/libpthread.so.0
#4  0x00007f65193c52bd in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f64f2b72700 (LWP 3211)):
#0  0x00007f6516106494 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f65160c9eb5 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f65160ca5ab in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f65160ca7a4 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f651aa09956 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#5  0x00007f651a9da73f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#6  0x00007f651a9da9c8 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#7  0x00007f651a8dee40 in QThread::exec() () from /usr/lib64/libQtCore.so.4
#8  0x00007f651a9bb11f in ?? () from /usr/lib64/libQtCore.so.4
#9  0x00007f651a8e1ddb in ?? () from /usr/lib64/libQtCore.so.4
#10 0x00007f651a64be0e in start_thread () from /lib64/libpthread.so.0
#11 0x00007f65193c52bd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f64f16eb700 (LWP 5659)):
#0  0x00007f65193bd13f in poll () from /lib64/libc.so.6
#1  0x00007f65160ca684 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f65160ca7a4 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f651aa09956 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#4  0x00007f651a9da73f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#5  0x00007f651a9da9c8 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#6  0x00007f651a8dee40 in QThread::exec() () from /usr/lib64/libQtCore.so.4
#7  0x00007f651a9bb11f in ?? () from /usr/lib64/libQtCore.so.4
#8  0x00007f651a8e1ddb in ?? () from /usr/lib64/libQtCore.so.4
#9  0x00007f651a64be0e in start_thread () from /lib64/libpthread.so.0
#10 0x00007f65193c52bd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f651bd86780 (LWP 3126)):
[KCrash Handler]
#5  0x00007f651a9de971 in QCoreApplication::postEvent(QObject*, QEvent*, int) () from /usr/lib64/libQtCore.so.4
#6  0x00007f6519bf3f2d in QX11Data::xdndHandleFinished (this=<optimized out>, xe=0x7fff59358420, passive=false) at kernel/qdnd_x11.cpp:1252
#7  0x00007f6519be75c3 in QApplication::x11ClientMessage (this=<optimized out>, w=0x8960280, event=<optimized out>, passive_only=<optimized out>) at kernel/qapplication_x11.cpp:3205
#8  0x00007f6519be5eb2 in QApplication::x11ProcessEvent (this=0x25271b0, event=0x7fff59358420) at kernel/qapplication_x11.cpp:3775
#9  0x00007f6519c0bc32 in x11EventSourceDispatch (s=0x2537870, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#10 0x00007f65160ca3b5 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#11 0x00007f65160ca6e8 in ?? () from /usr/lib64/libglib-2.0.so.0
#12 0x00007f65160ca7a4 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#13 0x00007f651aa09936 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#14 0x00007f6519c0b8ae in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#15 0x00007f651a9da73f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#16 0x00007f651a9da9c8 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#17 0x00007f651a9df3a8 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#18 0x00007f65099885b5 in kdemain () from /usr/lib64/libkdeinit4_plasma-desktop.so
#19 0x0000000000408892 in _start ()

Possible duplicates by query: bug 309526, bug 309417, bug 309029, bug 308126, bug 307897.

Reported using DrKonqi