Bug 308634

Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.2
Qt Version: 4.8.2
Operating System: Linux 3.2.0-32-generic x86_64
Distribution: Linux Mint 13 Maya

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

I was creatiing an activity by clicking on "create activity" from the activity menu button that I clicked in the taskbar.

The crash can be reproduced some of the time.

-- 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 0x7f05f21b5780 (LWP 2434))]

Thread 4 (Thread 0x7f05d57e2700 (LWP 2437)):
#0  0x00007f05e5cff05d in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x904ff0) at pthread_mutex_unlock.c:290
#2  0x00007f05e563a5d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f05e55fefe9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f05e55ff49a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f05db26a406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f05e56209e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f05e5cfbe9a in start_thread (arg=0x7f05d57e2700) at pthread_create.c:308
#8  0x00007f05f1a9ccbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f05c2360700 (LWP 2439)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f05eb47b222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f05eb47b259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f05e5cfbe9a in start_thread (arg=0x7f05c2360700) at pthread_create.c:308
#4  0x00007f05f1a9ccbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f05b49ba700 (LWP 2442)):
#0  0x00007f05ee5f0bd2 in unixCheckClockType () at tools/qelapsedtimer_unix.cpp:87
#1  0x00007f05ee5f0c49 in do_gettime (frac=0x7f05b49b9b98, sec=0x7f05b49b9b90) at tools/qelapsedtimer_unix.cpp:120
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x00007f05ee6c906d in QTimerInfoList::updateCurrentTime (this=0x7f05b0002860) at kernel/qeventdispatcher_unix.cpp:343
#4  0x00007f05ee6c93a3 in QTimerInfoList::timerWait (this=0x7f05b0002860, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#5  0x00007f05ee6c7e5c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f05b49b9c6c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x00007f05ee6c7f05 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x00007f05e55fe846 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f05e55fef5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f05e55ff164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f05ee6c8906 in QEventDispatcherGlib::processEvents (this=0x7f05b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#11 0x00007f05ee697e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#12 0x00007f05ee698097 in QEventLoop::exec (this=0x7f05b49b9dd0, flags=...) at kernel/qeventloop.cpp:204
#13 0x00007f05ee597057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#14 0x00007f05ee677b4f in QInotifyFileSystemWatcherEngine::run (this=0x18a7080) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x00007f05ee59a07b in QThreadPrivate::start (arg=0x18a7080) at thread/qthread_unix.cpp:307
#16 0x00007f05e5cfbe9a in start_thread (arg=0x7f05b49ba700) at pthread_create.c:308
#17 0x00007f05f1a9ccbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#18 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f05f21b5780 (LWP 2434)):
[KCrash Handler]
#6  0x00007f05f02cd9ee in QDeclarativeItem::~QDeclarativeItem (this=0x1e4d180, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f05c15330f1 in ~QDeclarativeElement (this=0x1e4d180, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=<optimized out>, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  0x00007f05ee6b2958 in QObject::event (this=0x1e4d180, e=<optimized out>) at kernel/qobject.cpp:1176
#10 0x00007f05eda1a7b4 in notify_helper (e=0x1e39450, receiver=0x1e4d180, this=0x795240) at kernel/qapplication.cpp:4556
#11 QApplicationPrivate::notify_helper (this=0x795240, receiver=0x1e4d180, e=0x1e39450) at kernel/qapplication.cpp:4528
#12 0x00007f05eda1f583 in QApplication::notify (this=0x7832e0, receiver=0x1e4d180, e=0x1e39450) at kernel/qapplication.cpp:4417
#13 0x00007f05ef37c756 in KApplication::notify (this=0x7832e0, receiver=0x1e4d180, event=0x1e39450) at ../../kdeui/kernel/kapplication.cpp:311
#14 0x00007f05ee69930c in QCoreApplication::notifyInternal (this=0x7832e0, receiver=0x1e4d180, event=0x1e39450) at kernel/qcoreapplication.cpp:915
#15 0x00007f05ee69d0ea in sendEvent (event=0x1e39450, receiver=0x1e4d180) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#16 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x7231f0) at kernel/qcoreapplication.cpp:1539
#17 0x00007f05ee6c8473 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007f05e55fed53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f05e55ff0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f05e55ff164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f05ee6c889f in QEventDispatcherGlib::processEvents (this=0x724ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f05edac2cde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f05ee697e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f05ee698097 in QEventLoop::exec (this=0x7fff015fb080, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f05ee69d3e7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#27 0x00007f05f1da3be3 in kdemain (argc=1, argv=0x7fff015fb468) at ../../../../plasma/desktop/shell/main.cpp:120
#28 0x00007f05f19ca76d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff015fb468, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff015fb458) at libc-start.c:226
#29 0x0000000000400671 in _start ()

Possible duplicates by query: bug 308208, bug 308198, bug 307382, bug 306833, bug 306474.

Reported using DrKonqi