Bug 297086

Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.1 (4.8.1)
Qt Version: 4.8.0
Operating System: Linux 3.0.0-17-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
Google Calendar widget was installed.  It worked as expected.  When the computer was restarted, the plasma desktop would crash every time.

- Custom settings of the application: Google Calendar widget was installed.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f57854597c0 (LWP 2139))]

Thread 8 (Thread 0x7f575c415700 (LWP 2140)):
#0  0x00007f5779b3a1fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x3472eb8) at pthread_mutex_unlock.c:290
#2  0x00007f5779028f3f in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5779029dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f577902a429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5781f34c26 in QEventDispatcherGlib::processEvents (this=0x3472230, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f5781f04402 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f5781f04657 in QEventLoop::exec (this=0x7f575c414cd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f5781e04067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f5781ee417f in QInotifyFileSystemWatcherEngine::run (this=0x3471950) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f5781e0708b in QThreadPrivate::start (arg=0x3471950) at thread/qthread_unix.cpp:298
#11 0x00007f577655356c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0x00007f5779b36efc in start_thread (arg=0x7f575c415700) at pthread_create.c:304
#13 0x00007f5784d4959d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f5756a94700 (LWP 2200)):
#0  0x00007f5784d3d473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f5779029f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f577902a429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5781f34c26 in QEventDispatcherGlib::processEvents (this=0x3f22390, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5781f04402 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f5781f04657 in QEventLoop::exec (this=0x7f5756a93cd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f5781e04067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f5781ee417f in QInotifyFileSystemWatcherEngine::run (this=0x25d1bd0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f5781e0708b in QThreadPrivate::start (arg=0x25d1bd0) at thread/qthread_unix.cpp:298
#9  0x00007f577655356c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f5779b36efc in start_thread (arg=0x7f5756a94700) at pthread_create.c:304
#11 0x00007f5784d4959d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f574ffff700 (LWP 2238)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f577ef3c042 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f577ef3c079 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f577655356c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f5779b36efc in start_thread (arg=0x7f574ffff700) at pthread_create.c:304
#5  0x00007f5784d4959d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f574ce7c700 (LWP 2244)):
#0  0x00007f5784d3d473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f5779029f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f577902a792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f574d95a516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f577904f2b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f577655356c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007f5779b36efc in start_thread (arg=0x7f574ce7c700) at pthread_create.c:304
#7  0x00007f5784d4959d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f574bc81700 (LWP 2245)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f57803dec2c in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f57803ded59 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f577655356c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f5779b36efc in start_thread (arg=0x7f574bc81700) at pthread_create.c:304
#5  0x00007f5784d4959d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f574b380700 (LWP 2246)):
#0  0x00007f5781f342fa in postEventSourcePrepare (s=0x4d72ad0, timeout=0x7f574b37fb6c) at kernel/qeventdispatcher_glib.cpp:255
#1  0x00007f5779028ff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5779029dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f577902a429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5781f34c26 in QEventDispatcherGlib::processEvents (this=0x4d71ec0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f5781f04402 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f5781f04657 in QEventLoop::exec (this=0x7f574b37fd00, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f5781e04067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f5781e0708b in QThreadPrivate::start (arg=0x4d71d70) at thread/qthread_unix.cpp:298
#9  0x00007f577655356c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f5779b36efc in start_thread (arg=0x7f574b380700) at pthread_create.c:304
#11 0x00007f5784d4959d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f5761536700 (LWP 2264)):
#0  0x00007f5784d3d473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f5779029f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f577902a429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5781f34c26 in QEventDispatcherGlib::processEvents (this=0x432dd80, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5781f04402 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f5781f04657 in QEventLoop::exec (this=0x7f5761535d00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f5781e04067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f5781e0708b in QThreadPrivate::start (arg=0x5451230) at thread/qthread_unix.cpp:298
#8  0x00007f577655356c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f5779b36efc in start_thread (arg=0x7f5761536700) at pthread_create.c:304
#10 0x00007f5784d4959d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f57854597c0 (LWP 2139)):
[KCrash Handler]
#6  __memcpy_ssse3_back () at ../sysdeps/x86_64/multiarch/memcpy-ssse3-back.S:2495
#7  0x00007f5781e53a4c in QString::realloc (this=0x3293bd8, alloc=13) at /usr/include/x86_64-linux-gnu/bits/string3.h:52
#8  0x00007f5781e53ff9 in utf16 (this=0x3293bd8) at tools/qstring.cpp:4927
#9  QString::utf16 (this=0x3293bd8) at tools/qstring.cpp:4923
#10 0x00007f5781e59cba in QString::toUcs4 (this=0x3293bd8) at tools/qstring.cpp:3806
#11 0x00007f57676c0c50 in qpycore_PyObject_FromQString(QString const&) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#12 0x00007f5768218537 in _PyObject_Str (v=<QString at remote 0x4e85fa0>) at ../Objects/object.c:430
#13 0x00007f576821862a in PyObject_Str (v=<optimized out>) at ../Objects/object.c:451
#14 0x00007f5768224e21 in string_new (type=<optimized out>, args=<optimized out>, kwds=<optimized out>) at ../Objects/stringobject.c:3690
#15 0x00007f5768235713 in type_call (type=0x7f576861dd60, args=(<QString at remote 0x4e85fa0>,), kwds=0x0) at ../Objects/typeobject.c:721
#16 0x00007f57681d81f3 in PyObject_Call (func=<type at remote 0x7f576861dd60>, arg=<optimized out>, kw=<optimized out>) at ../Objects/abstract.c:2529
#17 0x00007f576827ac6d in do_call (nk=<optimized out>, na=<optimized out>, pp_stack=0x7fffa738eb10, func=<type at remote 0x7f576861dd60>) at ../Python/ceval.c:4239
#18 call_function (oparg=<optimized out>, pp_stack=0x7fffa738eb10) at ../Python/ceval.c:4044
#19 PyEval_EvalFrameEx (f=<optimized out>, throwflag=<optimized out>) at ../Python/ceval.c:2666
#20 0x00007f576827df05 in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=<optimized out>, args=<optimized out>, argcount=1, kws=0x0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3253
#21 0x00007f5768200a1c in function_call (func=<function at remote 0x4e9e500>, arg=(<GCalApplet(layout=<QGraphicsLinearLayout at remote 0x4e843b0>, parent=None, settings={'username': '', 'password': ''}, url='http://google.com/calendar/m', theme=<Svg at remote 0x4e84170>, timer=<QTimer at remote 0x4e84320>, applet_script=<PythonAppletScript(moduleName='gcal', pyapplet=<...>, module=<module at remote 0x4e7cbb0>, pluginName='applet_gcal', initialized=True, event_handlers={}) at remote 0x2e5b050>, wallet=<Wallet at remote 0x4e84290>, applet=<Applet at remote 0x4e840e0>, webview=<WebView at remote 0x4e84440>, _forward_to_applet=True) at remote 0x3e17d40>,), kw=0x0) at ../Objects/funcobject.c:526
#22 0x00007f57681d81f3 in PyObject_Call (func=<function at remote 0x4e9e500>, arg=<optimized out>, kw=<optimized out>) at ../Objects/abstract.c:2529
#23 0x00007f57681e594f in instancemethod_call (func=<function at remote 0x4e9e500>, arg=(<GCalApplet(layout=<QGraphicsLinearLayout at remote 0x4e843b0>, parent=None, settings={'username': '', 'password': ''}, url='http://google.com/calendar/m', theme=<Svg at remote 0x4e84170>, timer=<QTimer at remote 0x4e84320>, applet_script=<PythonAppletScript(moduleName='gcal', pyapplet=<...>, module=<module at remote 0x4e7cbb0>, pluginName='applet_gcal', initialized=True, event_handlers={}) at remote 0x2e5b050>, wallet=<Wallet at remote 0x4e84290>, applet=<Applet at remote 0x4e840e0>, webview=<WebView at remote 0x4e84440>, _forward_to_applet=True) at remote 0x3e17d40>,), kw=0x0) at ../Objects/classobject.c:2578
#24 0x00007f57681d81f3 in PyObject_Call (func=<instancemethod at remote 0x29856e0>, arg=<optimized out>, kw=<optimized out>) at ../Objects/abstract.c:2529
#25 0x00007f5768276807 in PyEval_CallObjectWithKeywords (func=<instancemethod at remote 0x29856e0>, arg=(), kw=<optimized out>) at ../Python/ceval.c:3890
#26 0x00007f576733ecc0 in sip_api_invoke_slot (slot=<optimized out>, sigargs=(True,)) at /build/buildd/sip4-4.12.4/siplib/qtlib.c:203
#27 0x00007f57676bbf86 in PyQtProxy::invokeSlot(qpycore_slot const&, void**) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#28 0x00007f57676bc068 in PyQtProxy::unislot(void**) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#29 0x00007f57676bc122 in PyQtProxy::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#30 0x00007f5781f19c09 in QMetaObject::activate (sender=0x4ea9760, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffa738f250) at kernel/qobject.cpp:3566
#31 0x00007f5782cf6822 in KWallet::Wallet::walletOpened (this=<optimized out>, _t1=true) at ./kwallet.moc:153
#32 0x00007f5782cf6a7a in KWallet::Wallet::qt_metacall (this=0x4ea9760, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffa738f3d0) at ./kwallet.moc:110
#33 0x00007f5781f19c09 in QMetaObject::activate (sender=0x44497d0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffa738f3d0) at kernel/qobject.cpp:3566
#34 0x00007f5782d2858f in OrgKdeKWalletInterface::walletAsyncOpened (this=<optimized out>, _t1=0, _t2=213415967) at kwallet_interface.moc:310
#35 0x00007f5782d28ae6 in OrgKdeKWalletInterface::qt_metacall (this=0x44497d0, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7fffa738fb10) at kwallet_interface.moc:185
#36 0x00007f578228035b in QDBusConnectionPrivate::deliverCall (this=0x242e490, object=0x44497d0, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:947
#37 0x00007f5781f1ebc6 in QObject::event (this=0x44497d0, e=<optimized out>) at kernel/qobject.cpp:1195
#38 0x00007f578128b104 in notify_helper (e=0x4404db0, receiver=0x44497d0, this=0x2447050) at kernel/qapplication.cpp:4555
#39 QApplicationPrivate::notify_helper (this=0x2447050, receiver=0x44497d0, e=0x4404db0) at kernel/qapplication.cpp:4527
#40 0x00007f578128ff83 in QApplication::notify (this=0x24308b0, receiver=0x44497d0, e=0x4404db0) at kernel/qapplication.cpp:4416
#41 0x00007f5782bdd9a6 in KApplication::notify (this=0x24308b0, receiver=0x44497d0, event=0x4404db0) at ../../kdeui/kernel/kapplication.cpp:311
#42 0x00007f5781f0561c in QCoreApplication::notifyInternal (this=0x24308b0, receiver=0x44497d0, event=0x4404db0) at kernel/qcoreapplication.cpp:876
#43 0x00007f5781f093ea in sendEvent (event=0x4404db0, receiver=0x44497d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#44 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x238c1f0) at kernel/qcoreapplication.cpp:1500
#45 0x00007f5781f34793 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#46 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#47 0x00007f5779029a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f577902a258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#49 0x00007f577902a429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#50 0x00007f5781f34bbf in QEventDispatcherGlib::processEvents (this=0x238dad0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#51 0x00007f578133028e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#52 0x00007f5781f04402 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#53 0x00007f5781f04657 in QEventLoop::exec (this=0x7fffa73904d0, flags=...) at kernel/qeventloop.cpp:204
#54 0x00007f5781f096e7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#55 0x00007f5785048803 in kdemain (argc=1, argv=0x7fffa73908b8) at ../../../../plasma/desktop/shell/main.cpp:120
#56 0x00007f5784c8730d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffa73908b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffa73908a8) at libc-start.c:226
#57 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 293719.

Possible duplicates by query: bug 293719.

Reported using DrKonqi