Application: plasma-desktop (4.11.10)
KDE Platform Version: 4.13.2
Qt Version: 4.8.6
Operating System: Linux 3.13.0-30-generic x86_64
Distribution: Ubuntu 14.04 LTS

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

My desktop crashed while configuring Google calendar plasma, on reboot the desktop crashed again after I logged in without showing the desktop, just black screen.

-- 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 0x7f0ff058a7c0 (LWP 5520))]

Thread 7 (Thread 0x7f0fbf8c4700 (LWP 5526)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0feadf581d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f0feadf5859 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f0fe3adf182 in start_thread (arg=0x7f0fbf8c4700) at pthread_create.c:312
#4  0x00007f0fefe8030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7f0f7e73a700 (LWP 5531)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0feab3620d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f0feae24fd6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f0fe3adf182 in start_thread (arg=0x7f0f7e73a700) at pthread_create.c:312
#4  0x00007f0fefe8030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7f0f6ffff700 (LWP 5534)):
#0  0x00007f0fefe72fbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f0fe33cdfe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0fe33ce0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0feca487be in QEventDispatcherGlib::processEvents (this=0x7f0f680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f0feca1a0af in QEventLoop::processEvents (this=this@entry=0x7f0f6fffede0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f0feca1a3a5 in QEventLoop::exec (this=this@entry=0x7f0f6fffede0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f0fec916c5f in QThread::exec (this=this@entry=0x1e7b2d0) at thread/qthread.cpp:537
#7  0x00007f0fec9fb823 in QInotifyFileSystemWatcherEngine::run (this=0x1e7b2d0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f0fec91932f in QThreadPrivate::start (arg=0x1e7b2d0) at thread/qthread_unix.cpp:349
#9  0x00007f0fe3adf182 in start_thread (arg=0x7f0f6ffff700) at pthread_create.c:312
#10 0x00007f0fefe8030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f0f6e569700 (LWP 5537)):
#0  0x00007f0fefe716bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f0fe340ec20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0fe33cdb14 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0fe33cdf7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0fe33ce0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0feca487be in QEventDispatcherGlib::processEvents (this=0x7f0f640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f0feca1a0af in QEventLoop::processEvents (this=this@entry=0x7f0f6e568de0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f0feca1a3a5 in QEventLoop::exec (this=this@entry=0x7f0f6e568de0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f0fec916c5f in QThread::exec (this=this@entry=0x211d7d0) at thread/qthread.cpp:537
#9  0x00007f0fec9fb823 in QInotifyFileSystemWatcherEngine::run (this=0x211d7d0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f0fec91932f in QThreadPrivate::start (arg=0x211d7d0) at thread/qthread_unix.cpp:349
#11 0x00007f0fe3adf182 in start_thread (arg=0x7f0f6e569700) at pthread_create.c:312
#12 0x00007f0fefe8030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f0f6dd68700 (LWP 5538)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0fe9232ffb in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f0fe9233039 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f0fe3adf182 in start_thread (arg=0x7f0f6dd68700) at pthread_create.c:312
#4  0x00007f0fefe8030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f0eddfe8700 (LWP 5539)):
#0  0x00007f0fefe72fbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f0fe33cdfe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0fe33ce0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0feca487be in QEventDispatcherGlib::processEvents (this=0x7f0ed80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f0feca1a0af in QEventLoop::processEvents (this=this@entry=0x7f0eddfe7e20, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f0feca1a3a5 in QEventLoop::exec (this=this@entry=0x7f0eddfe7e20, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f0fec916c5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#7  0x00007f0fec91932f in QThreadPrivate::start (arg=0x1a0f990) at thread/qthread_unix.cpp:349
#8  0x00007f0fe3adf182 in start_thread (arg=0x7f0eddfe8700) at pthread_create.c:312
#9  0x00007f0fefe8030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f0ff058a7c0 (LWP 5520)):
[KCrash Handler]
#6  __memcpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:33
#7  0x00007f0fec9630ec in memcpy (__len=<optimized out>, __src=<optimized out>, __dest=0x25a19aa) at /usr/include/x86_64-linux-gnu/bits/string3.h:51
#8  QString::realloc (this=this@entry=0x2358958, alloc=13) at tools/qstring.cpp:1349
#9  0x00007f0fec9642bb in QString::realloc (this=this@entry=0x2358958) at tools/qstring.cpp:1380
#10 0x00007f0fec9642d6 in QString::utf16 (this=this@entry=0x2358958) at tools/qstring.cpp:4933
#11 0x00007f0fec9643ca in QString::toUcs4 (this=0x2358958) at tools/qstring.cpp:3810
#12 0x00007f0fc6da9ab0 in qpycore_PyObject_FromQString(QString const&) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#13 0x00007f0fc74b53ca in _PyObject_Str (v=0x7f0f7c05d2a8) at ../Objects/object.c:430
#14 0x00007f0fc74b558a in PyObject_Str (v=<optimized out>) at ../Objects/object.c:451
#15 0x00007f0fc744fb2a in string_new.24162 (type=0x7f0fc78cb600 <PyString_Type>, args=<optimized out>, kwds=<optimized out>) at ../Objects/stringobject.c:3706
#16 0x00007f0fc74b4493 in type_call.26491 (type=0x7f0fc78cb600 <PyString_Type>, args=0x7f0fc3c81610, kwds=0x0) at ../Objects/typeobject.c:729
#17 0x00007f0fc74b1e23 in PyObject_Call (func=func@entry=0x7f0fc78cb600 <PyString_Type>, arg=arg@entry=0x7f0fc3c81610, kw=kw@entry=0x0) at ../Objects/abstract.c:2529
#18 0x00007f0fc74e5816 in do_call (nk=<optimized out>, na=1, pp_stack=0x7fff15714830, func=0x7f0fc78cb600 <PyString_Type>) at ../Python/ceval.c:4238
#19 call_function (oparg=<optimized out>, pp_stack=0x7fff15714830) at ../Python/ceval.c:4043
#20 PyEval_EvalFrameEx (f=f@entry=0x7f0f7efab9d8, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666
#21 0x00007f0fc74ea17d in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=locals@entry=0x0, args=args@entry=0x7f0fc3c815e8, argcount=1, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0, defcount=defcount@entry=0, closure=0x0) at ../Python/ceval.c:3252
#22 0x00007f0fc74ea310 in function_call.15737 (func=0x7f0fbf929c80, arg=0x7f0fc3c815d0, kw=0x0) at ../Objects/funcobject.c:526
#23 0x00007f0fc74b1e23 in PyObject_Call (func=func@entry=0x7f0fbf929c80, arg=arg@entry=0x7f0fc3c815d0, kw=kw@entry=0x0) at ../Objects/abstract.c:2529
#24 0x00007f0fc740530d in instancemethod_call.8988 (func=0x7f0fbf929c80, arg=0x7f0fc3c815d0, kw=0x0) at ../Objects/classobject.c:2602
#25 0x00007f0fc74b1e23 in PyObject_Call (func=func@entry=0x7f0fc716ebe0, arg=arg@entry=0x7f0ff0430050, kw=<optimized out>) at ../Objects/abstract.c:2529
#26 0x00007f0fc7470837 in PyEval_CallObjectWithKeywords (func=func@entry=0x7f0fc716ebe0, arg=arg@entry=0x7f0ff0430050, kw=kw@entry=0x0) at ../Python/ceval.c:3889
#27 0x00007f0fc69f7048 in sip_api_invoke_slot (slot=<optimized out>, sigargs=0x7f0fc3c71c90) at /build/buildd/sip4-4.15.5/siplib/qtlib.c:203
#28 0x00007f0fc6da5a26 in PyQtProxy::invokeSlot(qpycore_slot const&, void**) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#29 0x00007f0fc6da5d40 in PyQtProxy::unislot(void**) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#30 0x00007f0fc6da68dd in PyQtProxy::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#31 0x00007f0feca2fa78 in QMetaObject::activate (sender=0xed27e0, m=m@entry=0x7f0fedafa500 <KWallet::Wallet::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7fff15714ee0) at kernel/qobject.cpp:3569
#32 0x00007f0fed7e6bd2 in KWallet::Wallet::walletOpened (this=<optimized out>, _t1=true) at ./kwallet.moc:166
#33 0x00007f0feca2f87a in QMetaObject::activate (sender=0xf0ac70, m=m@entry=0x7f0fedafb500 <OrgKdeKWalletInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7fff15715010) at kernel/qobject.cpp:3539
#34 0x00007f0fed81545f in OrgKdeKWalletInterface::walletAsyncOpened (this=<optimized out>, _t1=0, _t2=859638136) at kwallet_interface.moc:323
#35 0x00007f0fed817ca1 in OrgKdeKWalletInterface::qt_static_metacall (_o=0xf0ac70, _id=0, _id@entry=4, _a=0x7fff15715300, _c=<optimized out>) at kwallet_interface.moc:161
#36 0x00007f0fed817e13 in qt_static_metacall (_a=0x7fff15715300, _id=4, _c=QMetaObject::InvokeMetaMethod, _o=0xf0ac70) at kwallet_interface.moc:285
#37 OrgKdeKWalletInterface::qt_metacall (this=0xf0ac70, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7fff15715300) at kwallet_interface.moc:286
#38 0x00007f0fecda71f6 in QDBusConnectionPrivate::deliverCall (this=0x8f94e0, object=0xf0ac70, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:951
#39 0x00007f0feca33c1e in QObject::event (this=0xf0ac70, e=<optimized out>) at kernel/qobject.cpp:1194
#40 0x00007f0febdb4e2c in QApplicationPrivate::notify_helper (this=this@entry=0x911a40, receiver=receiver@entry=0xf0ac70, e=e@entry=0xac3680) at kernel/qapplication.cpp:4567
#41 0x00007f0febdbb4a0 in QApplication::notify (this=this@entry=0x8f8c10, receiver=receiver@entry=0xf0ac70, e=e@entry=0xac3680) at kernel/qapplication.cpp:4353
#42 0x00007f0fed6e0d1a in KApplication::notify (this=0x8f8c10, receiver=0xf0ac70, event=0xac3680) at ../../kdeui/kernel/kapplication.cpp:311
#43 0x00007f0feca1b4dd in QCoreApplication::notifyInternal (this=0x8f8c10, receiver=receiver@entry=0xf0ac70, event=event@entry=0xac3680) at kernel/qcoreapplication.cpp:953
#44 0x00007f0feca1eb3d in sendEvent (event=0xac3680, receiver=0xf0ac70) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#45 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x88a1f0) at kernel/qcoreapplication.cpp:1577
#46 0x00007f0feca1efe3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#47 0x00007f0feca48f83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#48 postEventSourceDispatch (s=0x90f750) at kernel/qeventdispatcher_glib.cpp:287
#49 0x00007f0fe33cde04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#50 0x00007f0fe33ce048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007f0fe33ce0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007f0feca487a1 in QEventDispatcherGlib::processEvents (this=0x88baf0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#53 0x00007f0febe56bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#54 0x00007f0feca1a0af in QEventLoop::processEvents (this=this@entry=0x7fff157159a0, flags=...) at kernel/qeventloop.cpp:149
#55 0x00007f0feca1a3a5 in QEventLoop::exec (this=this@entry=0x7fff157159a0, flags=...) at kernel/qeventloop.cpp:204
#56 0x00007f0feca1fb79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#57 0x00007f0febdb337c in QApplication::exec () at kernel/qapplication.cpp:3828
#58 0x00007f0ff018767c in kdemain (argc=1, argv=0x7fff15715bf8) at ../../../../plasma/desktop/shell/main.cpp:126
#59 0x00007f0fefda6ec5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, argv=0x7fff15715bf8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff15715be8) at libc-start.c:287
#60 0x000000000040070e in _start ()

Possible duplicates by query: bug 333641, bug 332342.

Reported using DrKonqi