Bug 314465

Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.4
Qt Version: 4.8.3
Operating System: Linux 3.7.5-030705-generic x86_64
Distribution: Ubuntu 12.10

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

Added the Google Tasks Advanced widget / plasmoid to my desktop. Suddenly everything hung and the desktop crashed. I then got the report a bug notification.

-- 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 0x7ff6d92a2780 (LWP 2560))]

Thread 6 (Thread 0x7ff6cc9a4700 (LWP 2566)):
#0  0x00007ff6ec62c303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007ff6e02cbd84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff6e02cbea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff6e92dac16 in QEventDispatcherGlib::processEvents (this=0x7ff6c00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007ff6e92ab2bf in QEventLoop::processEvents (this=this@entry=0x7ff6cc9a3dd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007ff6e92ab548 in QEventLoop::exec (this=0x7ff6cc9a3dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007ff6e91acb10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007ff6e928b9af in QInotifyFileSystemWatcherEngine::run (this=0x2789bb0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007ff6e91afaec in QThreadPrivate::start (arg=0x2789bb0) at thread/qthread_unix.cpp:338
#9  0x00007ff6e09cae9a in start_thread (arg=0x7ff6cc9a4700) at pthread_create.c:308
#10 0x00007ff6ec637cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7ff6c58d3700 (LWP 2596)):
#0  0x00007ff6ec62c303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007ff6e02cbd84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff6e02cbea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff6e92dac16 in QEventDispatcherGlib::processEvents (this=0x7ff6b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007ff6e92ab2bf in QEventLoop::processEvents (this=this@entry=0x7ff6c58d2dd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007ff6e92ab548 in QEventLoop::exec (this=0x7ff6c58d2dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007ff6e91acb10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007ff6e928b9af in QInotifyFileSystemWatcherEngine::run (this=0x2a1f690) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007ff6e91afaec in QThreadPrivate::start (arg=0x2a1f690) at thread/qthread_unix.cpp:338
#9  0x00007ff6e09cae9a in start_thread (arg=0x7ff6c58d3700) at pthread_create.c:308
#10 0x00007ff6ec637cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7ff6b61f7700 (LWP 2610)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff6e6331cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007ff6e6331d09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007ff6e09cae9a in start_thread (arg=0x7ff6b61f7700) at pthread_create.c:308
#4  0x00007ff6ec637cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7ff6adf42700 (LWP 2924)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff6e779fb2d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007ff6e779fc39 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007ff6e09cae9a in start_thread (arg=0x7ff6adf42700) at pthread_create.c:308
#4  0x00007ff6ec637cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7ff6af716700 (LWP 2925)):
#0  0x00007ff6ec62c303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007ff6e02cbd84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff6e02cbea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff6e92dac16 in QEventDispatcherGlib::processEvents (this=0x7ff6a0002800, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007ff6e92ab2bf in QEventLoop::processEvents (this=this@entry=0x7ff6af715e00, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007ff6e92ab548 in QEventLoop::exec (this=0x7ff6af715e00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007ff6e91acb10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007ff6e91afaec in QThreadPrivate::start (arg=0x2456880) at thread/qthread_unix.cpp:338
#8  0x00007ff6e09cae9a in start_thread (arg=0x7ff6af716700) at pthread_create.c:308
#9  0x00007ff6ec637cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ff6d92a2780 (LWP 2560)):
[KCrash Handler]
#6  KConfigBase::isGroupImmutable (this=0x2, aGroup=0x7ff6ec2bcea0 "Configuration") at ../../kdecore/config/kconfigbase.cpp:102
#7  0x00007ff6e9926274 in KConfigGroup::KConfigGroup (this=0x4ce0f10, master=0x2, _group=0x7ff6ec2bcea0 "Configuration") at ../../kdecore/config/kconfiggroup.cpp:473
#8  0x00007ff6ec12ddb2 in Plasma::Applet::config (this=<optimized out>) at ../../plasma/applet.cpp:460
#9  0x00007ff65c1a9862 in meth_Plasma_Applet_config (sipSelf=<Applet at remote 0x5dea050>, sipArgs=<optimized out>) at sip/plasma/sipplasmapart6.cpp:16466
#10 0x00007ff65d73ed72 in call_function (oparg=<optimized out>, pp_stack=0x7fffed364180) at ../Python/ceval.c:4021
#11 PyEval_EvalFrameEx (f=f@entry=Frame 0x6b894e0, for file /home/cboyd/.kde/share/apps/plasma/plasmoids/tasktimer/contents/code/tasktimer.py, line 118, in saveState (self=<TaskTimer(isAddingTask=False, colors={'inactiveTaskBackground': <QString at remote 0x5d6b980>, 'activeTaskBackground': <QString at remote 0x5d6b8a0>, 'activeTaskText': <QString at remote 0x5d6b910>, 'inactiveTaskText': <QString at remote 0x5d6b9f0>}, tasks=[<Task(totalTime=3, resetTimerSignalMapper=<QSignalMapper at remote 0x5dea560>, removeTaskSignalMapper=<QSignalMapper at remote 0x5dea950>, renameTaskSignalMapper=<QSignalMapper at remote 0x5dea830>, title=<QString at remote 0x5d6b830>, button=<PushButton at remote 0x5dea440>, renameTaskAction=<QAction at remote 0x5dea8c0>, id=0, removeTaskAction=<QAction at remote 0x5dea9e0>, resetTimerAction=<QAction at remote 0x5dea680>, startTime=<QDateTime at remote 0x5d6ba60>, setTimerSignalMapper=<QSignalMapper at remote 0x5dea710>, app=<...>, isActive=False, setTimerAction=<QAction at remote 0x5dea7a0>) at remote 0x5da3170>], lay...(truncated), throwflag=throwflag@entry=0) at ../Python/ceval.c:2666
#12 0x00007ff65d73fc38 in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=locals@entry=0x0, args=args@entry=0x5d8f8e8, argcount=1, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x5e0e728, defcount=defcount@entry=1, closure=0x0) at ../Python/ceval.c:3253
#13 0x00007ff65d795c76 in function_call (func=<function at remote 0x5decde8>, arg=(<TaskTimer(isAddingTask=False, colors={'inactiveTaskBackground': <QString at remote 0x5d6b980>, 'activeTaskBackground': <QString at remote 0x5d6b8a0>, 'activeTaskText': <QString at remote 0x5d6b910>, 'inactiveTaskText': <QString at remote 0x5d6b9f0>}, tasks=[<Task(totalTime=3, resetTimerSignalMapper=<QSignalMapper at remote 0x5dea560>, removeTaskSignalMapper=<QSignalMapper at remote 0x5dea950>, renameTaskSignalMapper=<QSignalMapper at remote 0x5dea830>, title=<QString at remote 0x5d6b830>, button=<PushButton at remote 0x5dea440>, renameTaskAction=<QAction at remote 0x5dea8c0>, id=0, removeTaskAction=<QAction at remote 0x5dea9e0>, resetTimerAction=<QAction at remote 0x5dea680>, startTime=<QDateTime at remote 0x5d6ba60>, setTimerSignalMapper=<QSignalMapper at remote 0x5dea710>, app=<...>, isActive=False, setTimerAction=<QAction at remote 0x5dea7a0>) at remote 0x5da3170>], layout=<QGraphicsLinearLayout at remote 0x5dea170>, saveTimer=<QTimer at remote 0x5dea320>, isRenamingTask=False, addNewTaskButton=<PushButt...(truncated), kw=0x0) at ../Objects/funcobject.c:526
#14 0x00007ff65d80f1be in PyObject_Call (func=func@entry=<function at remote 0x5decde8>, arg=arg@entry=(<TaskTimer(isAddingTask=False, colors={'inactiveTaskBackground': <QString at remote 0x5d6b980>, 'activeTaskBackground': <QString at remote 0x5d6b8a0>, 'activeTaskText': <QString at remote 0x5d6b910>, 'inactiveTaskText': <QString at remote 0x5d6b9f0>}, tasks=[<Task(totalTime=3, resetTimerSignalMapper=<QSignalMapper at remote 0x5dea560>, removeTaskSignalMapper=<QSignalMapper at remote 0x5dea950>, renameTaskSignalMapper=<QSignalMapper at remote 0x5dea830>, title=<QString at remote 0x5d6b830>, button=<PushButton at remote 0x5dea440>, renameTaskAction=<QAction at remote 0x5dea8c0>, id=0, removeTaskAction=<QAction at remote 0x5dea9e0>, resetTimerAction=<QAction at remote 0x5dea680>, startTime=<QDateTime at remote 0x5d6ba60>, setTimerSignalMapper=<QSignalMapper at remote 0x5dea710>, app=<...>, isActive=False, setTimerAction=<QAction at remote 0x5dea7a0>) at remote 0x5da3170>], layout=<QGraphicsLinearLayout at remote 0x5dea170>, saveTimer=<QTimer at remote 0x5dea320>, isRenamingTask=False, addNewTaskButton=<PushButt...(truncated), kw=kw@entry=0x0) at ../Objects/abstract.c:2529
#15 0x00007ff65d8734e0 in instancemethod_call.8790 (func=<function at remote 0x5decde8>, arg=(<TaskTimer(isAddingTask=False, colors={'inactiveTaskBackground': <QString at remote 0x5d6b980>, 'activeTaskBackground': <QString at remote 0x5d6b8a0>, 'activeTaskText': <QString at remote 0x5d6b910>, 'inactiveTaskText': <QString at remote 0x5d6b9f0>}, tasks=[<Task(totalTime=3, resetTimerSignalMapper=<QSignalMapper at remote 0x5dea560>, removeTaskSignalMapper=<QSignalMapper at remote 0x5dea950>, renameTaskSignalMapper=<QSignalMapper at remote 0x5dea830>, title=<QString at remote 0x5d6b830>, button=<PushButton at remote 0x5dea440>, renameTaskAction=<QAction at remote 0x5dea8c0>, id=0, removeTaskAction=<QAction at remote 0x5dea9e0>, resetTimerAction=<QAction at remote 0x5dea680>, startTime=<QDateTime at remote 0x5d6ba60>, setTimerSignalMapper=<QSignalMapper at remote 0x5dea710>, app=<...>, isActive=False, setTimerAction=<QAction at remote 0x5dea7a0>) at remote 0x5da3170>], layout=<QGraphicsLinearLayout at remote 0x5dea170>, saveTimer=<QTimer at remote 0x5dea320>, isRenamingTask=False, addNewTaskButton=<PushButt...(truncated), kw=0x0) at ../Objects/classobject.c:2602
#16 0x00007ff65d80f1be in PyObject_Call (func=func@entry=<instancemethod at remote 0x4a67730>, arg=arg@entry=(), kw=<optimized out>) at ../Objects/abstract.c:2529
#17 0x00007ff65d80fac7 in PyEval_CallObjectWithKeywords (func=func@entry=<instancemethod at remote 0x4a67730>, arg=arg@entry=(), kw=kw@entry=0x0) at ../Python/ceval.c:3890
#18 0x00007ff65ce6fe70 in sip_api_invoke_slot (slot=<optimized out>, sigargs=()) at /build/buildd/sip4-4.13.3/siplib/qtlib.c:197
#19 0x00007ff65d2257a6 in PyQtProxy::invokeSlot(qpycore_slot const&, void**) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#20 0x00007ff65d225af0 in PyQtProxy::unislot(void**) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#21 0x00007ff65d225ba2 in PyQtProxy::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#22 0x00007ff6e92c2123 in QMetaObject::activate (sender=0x54882f0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3566
#23 0x00007ff65d14ea13 in sipQTimer::timerEvent (this=0x54882f0, a0=0x7fffed364f20) at sipQtCorepart2.cpp:148
#24 0x00007ff6e92c126c in QObject::event (this=0x54882f0, e=<optimized out>) at kernel/qobject.cpp:1157
#25 0x00007ff65d14fb23 in event (a0=0x7fffed364f20, this=0x54882f0) at sipQtCorepart2.cpp:165
#26 sipQTimer::event (this=0x54882f0, a0=0x7fffed364f20) at sipQtCorepart2.cpp:157
#27 0x00007ff6e8653e9c in QApplicationPrivate::notify_helper (this=this@entry=0x2345420, receiver=receiver@entry=0x54882f0, e=e@entry=0x7fffed364f20) at kernel/qapplication.cpp:4562
#28 0x00007ff6e865830a in QApplication::notify (this=0x232c700, receiver=0x54882f0, e=0x7fffed364f20) at kernel/qapplication.cpp:4423
#29 0x00007ff6e9f651d6 in KApplication::notify (this=0x232c700, receiver=0x54882f0, event=0x7fffed364f20) at ../../kdeui/kernel/kapplication.cpp:311
#30 0x00007ff6e92ac56e in QCoreApplication::notifyInternal (this=0x232c700, receiver=0x54882f0, event=0x7fffed364f20) at kernel/qcoreapplication.cpp:915
#31 0x00007ff6e92dd462 in sendEvent (event=0x7fffed364f20, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 QTimerInfoList::activateTimers (this=0x2351660) at kernel/qeventdispatcher_unix.cpp:611
#33 0x00007ff6e92da584 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#34 timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:180
#35 0x00007ff6e92da5a1 in idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:233
#36 0x00007ff6e02cbab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007ff6e02cbde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007ff6e02cbea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007ff6e92dabf6 in QEventDispatcherGlib::processEvents (this=0x22c8ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#40 0x00007ff6e86f8c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#41 0x00007ff6e92ab2bf in QEventLoop::processEvents (this=this@entry=0x7fffed3651a0, flags=...) at kernel/qeventloop.cpp:149
#42 0x00007ff6e92ab548 in QEventLoop::exec (this=0x7fffed3651a0, flags=...) at kernel/qeventloop.cpp:204
#43 0x00007ff6e92b0708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#44 0x00007ff6ec93e035 in kdemain (argc=1, argv=0x7fffed365498) at ../../../../plasma/desktop/shell/main.cpp:120
#45 0x00007ff6ec56576d in __libc_start_main (main=0x4006a0 <main(int, char**)>, argc=1, ubp_av=0x7fffed365498, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffed365488) at libc-start.c:226
#46 0x00000000004006d1 in _start ()

Possible duplicates by query: bug 267373.

Reported using DrKonqi