Bug 321753

Application: kcmshell4 (4.10.3)
KDE Platform Version: 4.10.3
Qt Version: 4.8.4
Operating System: Linux 3.8.0-25-generic x86_64
Distribution: Ubuntu 13.04

-- Information about the crash:
Happened as I tried to set the clock to automatically set date and time when I pressed "apply"

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDE Control Module (kcmshell4), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcf4c1d87c0 (LWP 2978))]

Thread 3 (Thread 0x7fcf3032d700 (LWP 2993)):
#0  0x00007fcf4bb0fb0d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fcf4676c6cf in read (__nbytes=16, __buf=0x7fcf3032cd10, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x136da70) at /build/buildd/glib2.0-2.36.0/./glib/gwakeup.c:212
#3  0x00007fcf4672dd3c in g_main_context_check (context=context@entry=0x12fcc20, max_priority=2147483647, fds=fds@entry=0x7fcf280010c0, n_fds=n_fds@entry=3) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3502
#4  0x00007fcf4672e175 in g_main_context_iterate (context=0x12fcc20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3698
#5  0x00007fcf4672e6ba in g_main_loop_run (loop=0x12fcbb0) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3895
#6  0x00007fcf3061d4f6 in gdbus_shared_thread_func (user_data=0x12fcbf0) at /build/buildd/glib2.0-2.36.0/./gio/gdbusprivate.c:278
#7  0x00007fcf46751eb5 in g_thread_proxy (data=0x136cad0) at /build/buildd/glib2.0-2.36.0/./glib/gthread.c:798
#8  0x00007fcf4724af8e in start_thread (arg=0x7fcf3032d700) at pthread_create.c:311
#9  0x00007fcf4bb1de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7fcf2ecc3700 (LWP 3001)):
#0  0x00007fcf4bb113cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fcf4672e1dc in g_main_context_poll (n_fds=1, fds=0x7fcf1c001ba0, timeout=-1, context=0x7fcf1c0009a0, priority=<optimized out>) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3995
#2  g_main_context_iterate (context=context@entry=0x7fcf1c0009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3696
#3  0x00007fcf4672e304 in g_main_context_iteration (context=0x7fcf1c0009a0, may_block=1) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3762
#4  0x00007fcf4a735036 in QEventDispatcherGlib::processEvents (this=0x7fcf1c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fcf4a70538f in QEventLoop::processEvents (this=this@entry=0x7fcf2ecc2d90, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fcf4a705618 in QEventLoop::exec (this=this@entry=0x7fcf2ecc2d90, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fcf4a607410 in QThread::exec (this=this@entry=0xf8f3f0) at thread/qthread.cpp:542
#8  0x00007fcf4a6e6edf in QInotifyFileSystemWatcherEngine::run (this=0xf8f3f0) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00007fcf4a609bec in QThreadPrivate::start (arg=0xf8f3f0) at thread/qthread_unix.cpp:338
#10 0x00007fcf4724af8e in start_thread (arg=0x7fcf2ecc3700) at pthread_create.c:311
#11 0x00007fcf4bb1de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fcf4c1d87c0 (LWP 2978)):
[KCrash Handler]
#6  0x00007fcf4aa63840 in QListData::shared_null () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007fcf4a71e6a3 in QObject::connect (sender=sender@entry=0xfe4d00, signal=0x7fcf4a7e211d "timeout()", signal@entry=0x7fcf4a7e211c "2timeout()", receiver=receiver@entry=0xf96970, method=0x7fcf3acdee7c "load()", method@entry=0x7fcf3acdee7b "1load()", type=Qt::AutoConnection, type@entry=Qt::AutoCompatConnection) at kernel/qobject.cpp:2587
#8  0x00007fcf4a723e1a in QSingleShotTimer::QSingleShotTimer (this=0xfe4d00, msec=5000, receiver=0xf96970, member=0x7fcf3acdee7b "1load()") at kernel/qtimer.cpp:300
#9  0x00007fcf4a723f66 in QTimer::singleShot (msec=msec@entry=5000, receiver=receiver@entry=0xf96970, member=member@entry=0x7fcf3acdee7b "1load()") at kernel/qtimer.cpp:363
#10 0x00007fcf3acdd4b6 in KclockModule::save (this=0xf96970) at ../../../kcontrol/dateandtime/main.cpp:113
#11 0x00007fcf4b806807 in KCModuleProxy::save (this=<optimized out>) at ../../kutils/kcmoduleproxy.cpp:279
#12 0x00007fcf4b802b60 in KCMultiDialogPrivate::apply (this=<optimized out>) at ../../kutils/kcmultidialog.cpp:300
#13 0x00007fcf4b802c67 in KCMultiDialog::slotOkClicked (this=0xf0dd20) at ../../kutils/kcmultidialog.cpp:334
#14 0x00007fcf4a71b0ef in QMetaObject::activate (sender=0xf634c0, m=m@entry=0x7fcf4b7d5820 <KPushButton::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffff969b050) at kernel/qobject.cpp:3539
#15 0x00007fcf4b48da5f in KPushButton::authorized (this=<optimized out>, _t1=0xe48ab0) at ./kpushbutton.moc:143
#16 0x00007fcf4a71b0ef in QMetaObject::activate (sender=sender@entry=0xf634c0, m=m@entry=0x7fcf4a577ca0 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffff969b1a0) at kernel/qobject.cpp:3539
#17 0x00007fcf4a117c82 in QAbstractButton::clicked (this=this@entry=0xf634c0, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:220
#18 0x00007fcf49e6b23e in QAbstractButtonPrivate::emitClicked (this=this@entry=0xf767c0) at widgets/qabstractbutton.cpp:548
#19 0x00007fcf49e6ba30 in QAbstractButtonPrivate::click (this=this@entry=0xf767c0) at widgets/qabstractbutton.cpp:541
#20 0x00007fcf49e6bc9c in QAbstractButton::mouseReleaseEvent (this=0xf634c0, e=0x7ffff969ba40) at widgets/qabstractbutton.cpp:1123
#21 0x00007fcf49af9a89 in QWidget::event (this=0xf634c0, event=0x7ffff969ba40) at kernel/qwidget.cpp:8375
#22 0x00007fcf49aac8ec in QApplicationPrivate::notify_helper (this=this@entry=0xda62c0, receiver=receiver@entry=0xf634c0, e=e@entry=0x7ffff969ba40) at kernel/qapplication.cpp:4567
#23 0x00007fcf49aafa33 in QApplication::notify (this=this@entry=0x7ffff969c860, receiver=receiver@entry=0xf634c0, e=e@entry=0x7ffff969ba40) at kernel/qapplication.cpp:4110
#24 0x00007fcf4b3caaf6 in KApplication::notify (this=0x7ffff969c860, receiver=0xf634c0, event=0x7ffff969ba40) at ../../kdeui/kernel/kapplication.cpp:311
#25 0x00007fcf4a70663e in QCoreApplication::notifyInternal (this=0x7ffff969c860, receiver=receiver@entry=0xf634c0, event=event@entry=0x7ffff969ba40) at kernel/qcoreapplication.cpp:946
#26 0x00007fcf49ab2933 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#27 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0xf634c0, event=event@entry=0x7ffff969ba40, alienWidget=alienWidget@entry=0xf634c0, nativeWidget=nativeWidget@entry=0xf0dd20, buttonDown=buttonDown@entry=0x7fcf4a58a308 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#28 0x00007fcf49b27ec4 in QETWidget::translateMouseEvent (this=this@entry=0xf0dd20, event=event@entry=0x7ffff969c1c0) at kernel/qapplication_x11.cpp:4631
#29 0x00007fcf49b26ef1 in QApplication::x11ProcessEvent (this=0x7ffff969c860, event=event@entry=0x7ffff969c1c0) at kernel/qapplication_x11.cpp:3746
#30 0x00007fcf49b520b2 in x11EventSourceDispatch (s=s@entry=0xda03a0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#31 0x00007fcf4672df05 in g_main_dispatch (context=0xda37c0) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3054
#32 g_main_context_dispatch (context=context@entry=0xda37c0) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3630
#33 0x00007fcf4672e248 in g_main_context_iterate (context=context@entry=0xda37c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3701
#34 0x00007fcf4672e304 in g_main_context_iteration (context=0xda37c0, may_block=1) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3762
#35 0x00007fcf4a735016 in QEventDispatcherGlib::processEvents (this=0xd7d610, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#36 0x00007fcf49b521ae in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007fcf4a70538f in QEventLoop::processEvents (this=this@entry=0x7ffff969c5a0, flags=...) at kernel/qeventloop.cpp:149
#38 0x00007fcf4a705618 in QEventLoop::exec (this=this@entry=0x7ffff969c5a0, flags=...) at kernel/qeventloop.cpp:204
#39 0x00007fcf49f671c8 in QDialog::exec (this=this@entry=0xf0dd20) at dialogs/qdialog.cpp:554
#40 0x00007fcf4bdf3b1c in kdemain (_argc=14237488, _argv=<optimized out>) at ../../kcmshell/main.cpp:297
#41 0x00007fcf4ba45ea5 in __libc_start_main (main=0x4006d0 <main(int, char**)>, argc=2, ubp_av=0x7ffff969c998, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffff969c988) at libc-start.c:260
#42 0x0000000000400701 in _start ()

Possible duplicates by query: bug 321618, bug 321323, bug 321215, bug 321092, bug 320963.

Reported using DrKonqi