Bug 312509

Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.3
Qt Version: 4.8.3
Operating System: Linux 3.5.0-21-generic x86_64
Distribution: Ubuntu 12.10

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

I was trying to add a widget to the desktop then the application crashed.

-- Backtrace:
Application: Plasma desktop-skal (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7a52102780 (LWP 1726))]

Thread 4 (Thread 0x7f7a46ceb700 (LWP 1727)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7a5f192cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f7a5f192d09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f7a5982be9a in start_thread (arg=0x7f7a46ceb700) at pthread_create.c:308
#4  0x00007f7a65498cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f7a3eca0700 (LWP 1728)):
#0  0x00007f7a5982f05d in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x7f7a38000a60) at pthread_mutex_unlock.c:290
#2  0x00007f7a59169e51 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7a5912c60b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7a5912ccab in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7a5912cea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f7a6213bc16 in QEventDispatcherGlib::processEvents (this=0x7f7a380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007f7a6210c2bf in QEventLoop::processEvents (this=this@entry=0x7f7a3ec9fdd0, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007f7a6210c548 in QEventLoop::exec (this=0x7f7a3ec9fdd0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f7a6200db10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007f7a620ec9af in QInotifyFileSystemWatcherEngine::run (this=0x1f504d0) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x00007f7a62010aec in QThreadPrivate::start (arg=0x1f504d0) at thread/qthread_unix.cpp:338
#12 0x00007f7a5982be9a in start_thread (arg=0x7f7a3eca0700) at pthread_create.c:308
#13 0x00007f7a65498cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f7a3d6bb700 (LWP 1729)):
#0  0x00007f7a6548d303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f7a5912cd84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7a5912cea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7a6213bc16 in QEventDispatcherGlib::processEvents (this=0x7f7a300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f7a6210c2bf in QEventLoop::processEvents (this=this@entry=0x7f7a3d6badd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f7a6210c548 in QEventLoop::exec (this=0x7f7a3d6badd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f7a6200db10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f7a620ec9af in QInotifyFileSystemWatcherEngine::run (this=0x1efcd00) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f7a62010aec in QThreadPrivate::start (arg=0x1efcd00) at thread/qthread_unix.cpp:338
#9  0x00007f7a5982be9a in start_thread (arg=0x7f7a3d6bb700) at pthread_create.c:308
#10 0x00007f7a65498cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7a52102780 (LWP 1726)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007f7a63d00dd7 in QDeclarativeItem::~QDeclarativeItem (this=0x3e91660, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#8  0x00007f7a45d64311 in ~QDeclarativeElement (this=0x3e91660, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x3e91660, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#10 0x00007f7a62122468 in QObject::event (this=0x3e91660, e=<optimized out>) at kernel/qobject.cpp:1176
#11 0x00007f7a614b4e9c in QApplicationPrivate::notify_helper (this=this@entry=0x167f110, receiver=receiver@entry=0x3e91660, e=e@entry=0x36a0610) at kernel/qapplication.cpp:4562
#12 0x00007f7a614b930a in QApplication::notify (this=0x1667260, receiver=0x3e91660, e=0x36a0610) at kernel/qapplication.cpp:4423
#13 0x00007f7a62dc61d6 in KApplication::notify (this=0x1667260, receiver=0x3e91660, event=0x36a0610) at ../../kdeui/kernel/kapplication.cpp:311
#14 0x00007f7a6210d56e in QCoreApplication::notifyInternal (this=0x1667260, receiver=receiver@entry=0x3e91660, event=event@entry=0x36a0610) at kernel/qcoreapplication.cpp:915
#15 0x00007f7a621113f1 in sendEvent (event=0x36a0610, receiver=0x3e91660) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#16 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x15e41f0) at kernel/qcoreapplication.cpp:1539
#17 0x00007f7a6213ba63 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=0x16711c0) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007f7a5912cab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f7a5912cde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f7a5912cea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f7a6213bbf6 in QEventDispatcherGlib::processEvents (this=0x15e5ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f7a61559c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f7a6210c2bf in QEventLoop::processEvents (this=this@entry=0x7fffcb6e3af0, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f7a6210c548 in QEventLoop::exec (this=0x7fffcb6e3af0, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f7a62111708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#27 0x00007f7a6579f035 in kdemain (argc=1, argv=0x7fffcb6e3de8) at ../../../../plasma/desktop/shell/main.cpp:120
#28 0x00007f7a653c676d in __libc_start_main (main=0x4006a0 <main(int, char**)>, argc=1, ubp_av=0x7fffcb6e3de8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffcb6e3dd8) at libc-start.c:226
#29 0x00000000004006d1 in _start ()

Possible duplicates by query: bug 312494, bug 312284, bug 312095, bug 312005, bug 311654.

Reported using DrKonqi