Bug 316547

Application: plasma-desktop (0.4)
KDE Platform Version: 4.10.1
Qt Version: 4.8.2
Operating System: Linux 3.2.0-38-generic x86_64
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
- What I was doing when the application crashed: shut down using widget shutdown button. it's happening more often, and sometimes when restarted, the plasma is reset to default config.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8df6bc2780 (LWP 1730))]

Thread 5 (Thread 0x7f8dd87ac700 (LWP 1734)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f8defdca222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f8defdca259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f8dea660e9a in start_thread (arg=0x7f8dd87ac700) at pthread_create.c:308
#4  0x00007f8df64a9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f8dce6a7700 (LWP 1736)):
#0  0x00007f8df649e303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8de9f64036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8de9f6449a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8dcf191406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f8de9f859e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8dea660e9a in start_thread (arg=0x7f8dce6a7700) at pthread_create.c:308
#6  0x00007f8df64a9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f8dc75e9700 (LWP 1739)):
#0  0x00007f8df649e303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8de9f64036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8de9f64164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8df3017926 in QEventDispatcherGlib::processEvents (this=0x7f8db40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f8df2fe6e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8df2fe70b7 in QEventLoop::exec (this=0x7f8dc75e8dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f8df2ee6077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f8df2fc6b6f in QInotifyFileSystemWatcherEngine::run (this=0x2ebe270) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f8df2ee909b in QThreadPrivate::start (arg=0x2ebe270) at thread/qthread_unix.cpp:307
#9  0x00007f8dea660e9a in start_thread (arg=0x7f8dc75e9700) at pthread_create.c:308
#10 0x00007f8df64a9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f8dc675e700 (LWP 1740)):
#0  0x00007f8df649e303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8de9f64036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8de9f64164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8df3017926 in QEventDispatcherGlib::processEvents (this=0x7f8db80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f8df2fe6e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8df2fe70b7 in QEventLoop::exec (this=0x7f8dc675ddd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f8df2ee6077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f8df2fc6b6f in QInotifyFileSystemWatcherEngine::run (this=0x330a230) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f8df2ee909b in QThreadPrivate::start (arg=0x330a230) at thread/qthread_unix.cpp:307
#9  0x00007f8dea660e9a in start_thread (arg=0x7f8dc675e700) at pthread_create.c:308
#10 0x00007f8df64a9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f8df6bc2780 (LWP 1730)):
[KCrash Handler]
#6  0x0000000000000081 in ?? ()
#7  0x00007f8df4c209f1 in QDeclarativeItem::~QDeclarativeItem (this=0x321e4e0, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#8  0x00007f8df4be3af5 in ~QDeclarativeElement (this=0x321e4e0, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#9  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x321e4e0, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#10 0x00007f8df3001978 in QObject::event (this=0x321e4e0, e=<optimized out>) at kernel/qobject.cpp:1176
#11 0x00007f8df23697b4 in notify_helper (e=0x377ab60, receiver=0x321e4e0, this=0x21f3940) at kernel/qapplication.cpp:4556
#12 QApplicationPrivate::notify_helper (this=0x21f3940, receiver=0x321e4e0, e=0x377ab60) at kernel/qapplication.cpp:4528
#13 0x00007f8df236e583 in QApplication::notify (this=0x21ec4e0, receiver=0x321e4e0, e=0x377ab60) at kernel/qapplication.cpp:4417
#14 0x00007f8df3ccf006 in KApplication::notify (this=0x21ec4e0, receiver=0x321e4e0, event=0x377ab60) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007f8df2fe832c in QCoreApplication::notifyInternal (this=0x21ec4e0, receiver=0x321e4e0, event=0x377ab60) at kernel/qcoreapplication.cpp:915
#16 0x00007f8df2fec10a in sendEvent (event=0x377ab60, receiver=0x321e4e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x21801f0) at kernel/qcoreapplication.cpp:1539
#18 0x00007f8df2fec43e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1194
#19 0x00007f8df67b32ff in kdemain (argc=1, argv=0x7fff87d07f68) at ../../../../plasma/desktop/shell/main.cpp:126
#20 0x00007f8df63d776d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff87d07f68, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff87d07f58) at libc-start.c:226
#21 0x0000000000400671 in _start ()

Possible duplicates by query: bug 315561, bug 314924, bug 309662, bug 308111, bug 302568.

Reported using DrKonqi