Bug 310070

Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.2
Qt Version: 4.8.3
Operating System: Linux 3.5.0-17-generic x86_64
Distribution: Ubuntu 12.10

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

i was cliking on "add widget" icon, 
however, this is not the first time that a crash occurs 
with screen "plasma".
 There is crashes too, very often when I use Konqueror: freezing+dark screen, 

maybe because I use a external HD (not stable at all )

The crash can be reproduced every time.

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc108e67780 (LWP 1678))]

Thread 4 (Thread 0x7fc0fe429700 (LWP 1804)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc115ef7cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fc115ef7d09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fc110590e9a in start_thread (arg=0x7fc0fe429700) at pthread_create.c:308
#4  0x00007fc11c1facbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fc0f63e3700 (LWP 1805)):
#0  0x00007fc11c1ef303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fc10fe91d84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc10fe91ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc118ea0c16 in QEventDispatcherGlib::processEvents (this=0x7fc0f00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fc118e712bf in QEventLoop::processEvents (this=this@entry=0x7fc0f63e2dd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc118e71548 in QEventLoop::exec (this=0x7fc0f63e2dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fc118d72b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fc118e519af in QInotifyFileSystemWatcherEngine::run (this=0x10b7d70) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fc118d75aec in QThreadPrivate::start (arg=0x10b7d70) at thread/qthread_unix.cpp:338
#9  0x00007fc110590e9a in start_thread (arg=0x7fc0f63e3700) at pthread_create.c:308
#10 0x00007fc11c1facbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fc0f4dea700 (LWP 1806)):
#0  0x00007fc10fecec61 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc10fe9160b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc10fe91cab in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc10fe91ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc118ea0c16 in QEventDispatcherGlib::processEvents (this=0x7fc0e80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fc118e712bf in QEventLoop::processEvents (this=this@entry=0x7fc0f4de9dd0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fc118e71548 in QEventLoop::exec (this=0x7fc0f4de9dd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fc118d72b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007fc118e519af in QInotifyFileSystemWatcherEngine::run (this=0x1832a20) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fc118d75aec in QThreadPrivate::start (arg=0x1832a20) at thread/qthread_unix.cpp:338
#10 0x00007fc110590e9a in start_thread (arg=0x7fc0f4dea700) at pthread_create.c:308
#11 0x00007fc11c1facbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fc108e67780 (LWP 1678)):
[KCrash Handler]
#6  0x0000000001092de0 in ?? ()
#7  0x00007fc11aa65dd7 in QDeclarativeItem::~QDeclarativeItem (this=0x359fb90, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#8  0x00007fc0fd4a4281 in ~QDeclarativeElement (this=0x359fb90, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x359fb90, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#10 0x00007fc118e87468 in QObject::event (this=0x359fb90, e=<optimized out>) at kernel/qobject.cpp:1176
#11 0x00007fc118219e9c in QApplicationPrivate::notify_helper (this=this@entry=0xf735b0, receiver=receiver@entry=0x359fb90, e=e@entry=0x3367bd0) at kernel/qapplication.cpp:4562
#12 0x00007fc11821e30a in QApplication::notify (this=0xf62e90, receiver=0x359fb90, e=0x3367bd0) at kernel/qapplication.cpp:4423
#13 0x00007fc119b2b1d6 in KApplication::notify (this=0xf62e90, receiver=0x359fb90, event=0x3367bd0) at ../../kdeui/kernel/kapplication.cpp:311
#14 0x00007fc118e7256e in QCoreApplication::notifyInternal (this=0xf62e90, receiver=receiver@entry=0x359fb90, event=event@entry=0x3367bd0) at kernel/qcoreapplication.cpp:915
#15 0x00007fc118e763f1 in sendEvent (event=0x3367bd0, receiver=0x359fb90) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#16 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xeec1f0) at kernel/qcoreapplication.cpp:1539
#17 0x00007fc118ea0a63 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=0xf70ae0) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007fc10fe91ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fc10fe91de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fc10fe91ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fc118ea0bf6 in QEventDispatcherGlib::processEvents (this=0xeedad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007fc1182bec1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007fc118e712bf in QEventLoop::processEvents (this=this@entry=0x7fff469d05e0, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007fc118e71548 in QEventLoop::exec (this=0x7fff469d05e0, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007fc118e76708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#27 0x00007fc11c501035 in kdemain (argc=1, argv=0x7fff469d08d8) at ../../../../plasma/desktop/shell/main.cpp:120
#28 0x00007fc11c12876d in __libc_start_main (main=0x4006a0 <main(int, char**)>, argc=1, ubp_av=0x7fff469d08d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff469d08c8) at libc-start.c:226
#29 0x00000000004006d1 in _start ()

Possible duplicates by query: bug 310004, bug 309809, bug 309807, bug 309746, bug 309654.

Reported using DrKonqi