Bug 285398

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:
I started unpacking tar.gz file by the ark and plasma crashed.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Shell plochy Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f97ce7b67a0 (LWP 1892))]

Thread 5 (Thread 0x7f97b307f700 (LWP 1893)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f97c8293fe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f97c8294019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f97c3134efc in start_thread (arg=0x7f97b307f700) at pthread_create.c:304
#4  0x00007f97ce0a889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f97a9427700 (LWP 1897)):
#0  0x00007f97ce09c773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f97c2627f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f97c2628429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f97cb28ef3e in QEventDispatcherGlib::processEvents (this=0x2f29950, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f97cb262cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f97cb262ef7 in QEventLoop::exec (this=0x7f97a9426db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f97cb17a27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f97cb245cbf in QInotifyFileSystemWatcherEngine::run (this=0x2f28c20) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f97cb17cd05 in QThreadPrivate::start (arg=0x2f28c20) at thread/qthread_unix.cpp:331
#9  0x00007f97c3134efc in start_thread (arg=0x7f97a9427700) at pthread_create.c:304
#10 0x00007f97ce0a889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f97a269f700 (LWP 1903)):
#0  0x00007f97c31381fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x3461ad8) at pthread_mutex_unlock.c:290
#2  0x00007f97c2626fe4 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f97c2627dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f97c2628429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f97cb28ef3e in QEventDispatcherGlib::processEvents (this=0x3491400, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f97cb262cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f97cb262ef7 in QEventLoop::exec (this=0x7f97a269edb0, flags=...) at kernel/qeventloop.cpp:201
#8  0x00007f97cb17a27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#9  0x00007f97cb245cbf in QInotifyFileSystemWatcherEngine::run (this=0x34495c0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f97cb17cd05 in QThreadPrivate::start (arg=0x34495c0) at thread/qthread_unix.cpp:331
#11 0x00007f97c3134efc in start_thread (arg=0x7f97a269f700) at pthread_create.c:304
#12 0x00007f97ce0a889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f979f02a700 (LWP 1906)):
#0  0x00007f97c3137028 in __pthread_mutex_lock (mutex=0x3986b78) at pthread_mutex_lock.c:61
#1  0x00007f97c2626e5d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f97c2627dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f97c2628792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f979fb08516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f97c264d2b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f97c3134efc in start_thread (arg=0x7f979f02a700) at pthread_create.c:304
#7  0x00007f97ce0a889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f97ce7b67a0 (LWP 1892)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007f97cabcc86e in QGraphicsItem::dragLeaveEvent (this=<optimized out>, event=0x1) at graphicsview/qgraphicsitem.cpp:6865
#8  0x00007f97cabe2aaa in QGraphicsItemPrivate::setVisibleHelper (this=0x4b1b310, newVisible=false, explicitly=<optimized out>, update=true) at graphicsview/qgraphicsitem.cpp:2318
#9  0x00007f97b5c2ca69 in WindowTaskItem::~WindowTaskItem (this=0x33bfb40, __in_chrg=<optimized out>) at /home/tom/Stažené/plasma-icontasks-0.7.0/applet/windowtaskitem.cpp:96
#10 0x00007f97b5c2caa9 in WindowTaskItem::~WindowTaskItem (this=0x33bfb40, __in_chrg=<optimized out>) at /home/tom/Stažené/plasma-icontasks-0.7.0/applet/windowtaskitem.cpp:97
#11 0x00007f97cabe6dc6 in QGraphicsItem::~QGraphicsItem (this=0x3ceecb0, __in_chrg=<optimized out>) at graphicsview/qgraphicsitem.cpp:1488
#12 0x00007f97cac36540 in ~QGraphicsObject (this=0x3ceeca0, __in_chrg=<optimized out>) at ../../include/QtGui/../../src/gui/graphicsview/qgraphicsitem.h:547
#13 QGraphicsWidget::~QGraphicsWidget (this=0x3ceeca0, __in_chrg=<optimized out>) at graphicsview/qgraphicswidget.cpp:232
#14 0x00007f97cac366c9 in QGraphicsWidget::~QGraphicsWidget (this=0x3ceeca0, __in_chrg=<optimized out>) at graphicsview/qgraphicswidget.cpp:277
#15 0x00007f97cb275d75 in QObjectPrivate::deleteChildren (this=0x44ec030) at kernel/qobject.cpp:1955
#16 0x00007f97cb27b349 in QObject::~QObject (this=0x4cc3850, __in_chrg=<optimized out>) at kernel/qobject.cpp:946
#17 0x00007f97cac36548 in ~QGraphicsObject (this=0x4cc3850, __in_chrg=<optimized out>) at ../../include/QtGui/../../src/gui/graphicsview/qgraphicsitem.h:547
#18 QGraphicsWidget::~QGraphicsWidget (this=0x4cc3850, __in_chrg=<optimized out>) at graphicsview/qgraphicswidget.cpp:232
#19 0x00007f97b5c46539 in TaskGroupItem::~TaskGroupItem (this=0x4cc3850, __in_chrg=<optimized out>) at /home/tom/Stažené/plasma-icontasks-0.7.0/applet/taskgroupitem.cpp:159
#20 0x00007f97cb27aa88 in QObject::event (this=0x4cc3850, e=<optimized out>) at kernel/qobject.cpp:1200
#21 0x00007f97cac3289b in QGraphicsWidget::event (this=0x4cc3850, event=0x4030a30) at graphicsview/qgraphicswidget.cpp:1455
#22 0x00007f97ca614424 in notify_helper (e=0x4030a30, receiver=0x4cc3850, this=0x2083f70) at kernel/qapplication.cpp:4486
#23 QApplicationPrivate::notify_helper (this=0x2083f70, receiver=0x4cc3850, e=0x4030a30) at kernel/qapplication.cpp:4458
#24 0x00007f97ca619291 in QApplication::notify (this=0x2068510, receiver=0x4cc3850, e=0x4030a30) at kernel/qapplication.cpp:4365
#25 0x00007f97cbf12126 in KApplication::notify (this=0x2068510, receiver=0x4cc3850, event=0x4030a30) at ../../kdeui/kernel/kapplication.cpp:311
#26 0x00007f97cb263afc in QCoreApplication::notifyInternal (this=0x2068510, receiver=0x4cc3850, event=0x4030a30) at kernel/qcoreapplication.cpp:787
#27 0x00007f97cb26751f in sendEvent (event=0x4030a30, receiver=0x4cc3850) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#28 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1ffe430) at kernel/qcoreapplication.cpp:1428
#29 0x00007f97cb28ea73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#30 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#31 0x00007f97c2627a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f97c2628258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f97c2628429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f97cb28eed6 in QEventDispatcherGlib::processEvents (this=0x1ffff40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#35 0x00007f97ca6bc07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00007f97cb262cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#37 0x00007f97cb262ef7 in QEventLoop::exec (this=0x7fffb80fea20, flags=...) at kernel/qeventloop.cpp:201
#38 0x00007f97cb267789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#39 0x00007f97ce3a71a3 in kdemain (argc=1, argv=0x7fffb80fee08) at ../../../../plasma/desktop/shell/main.cpp:120
#40 0x00007f97cdfe830d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffb80fee08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb80fedf8) at libc-start.c:226
#41 0x0000000000400671 in _start ()

Reported using DrKonqi