Bug 293203

Application: kded4 ($Id$)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.2.1-melech x86_64
Distribution: Debian GNU/Linux testing (wheezy)

-- Information about the crash:
After logging in to KDE, it shows a PIN entry popup for the built-in WWAN interface of the laptop. On entering the PIN code, kded4 crashes.

The system is a Thinkpad T420.

The crash can be reproduced every time.

-- Backtrace:
Application: KDE-demon (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fb283bdc760 (LWP 12753))]

Thread 2 (Thread 0x7fb265838700 (LWP 12765)):
#0  0x00007fb2814444dd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fb27e4b9a9f in g_wakeup_acknowledge (wakeup=0x7fb260001db0) at /tmp/buildd/glib2.0-2.30.2/./glib/gwakeup.c:212
#2  0x00007fb27e477d17 in g_main_context_check (context=0xbe4050, max_priority=2147483647, fds=0xddf560, n_fds=1) at /tmp/buildd/glib2.0-2.30.2/./glib/gmain.c:2902
#3  0x00007fb27e4785f2 in g_main_context_iterate (context=0xbe4050, block=<optimized out>, dispatch=1, self=<optimized out>) at /tmp/buildd/glib2.0-2.30.2/./glib/gmain.c:3073
#4  0x00007fb27e478a99 in g_main_context_iteration (context=0xbe4050, may_block=1) at /tmp/buildd/glib2.0-2.30.2/./glib/gmain.c:3139
#5  0x00007fb28282be96 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#6  0x00007fb282800492 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#7  0x00007fb28280068f in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#8  0x00007fb28271830f in QThread::exec() () from /usr/lib/libQtCore.so.4
#9  0x00007fb2827e335f in QInotifyFileSystemWatcherEngine::run() () from /usr/lib/libQtCore.so.4
#10 0x00007fb28271acf5 in QThreadPrivate::start(void*) () from /usr/lib/libQtCore.so.4
#11 0x00007fb27ef48b50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#12 0x00007fb2814504ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb283bdc760 (LWP 12753)):
[KCrash Handler]
#6  0x00007fb282821700 in construct(QVariant::Private*, void const*) () from /usr/lib/libQtCore.so.4
#7  0x00007fb281c0af68 in construct(QVariant::Private*, void const*) () from /usr/lib/libQtGui.so.4
#8  0x00007fb28281e315 in QVariant::QVariant(int, void const*, unsigned int) () from /usr/lib/libQtCore.so.4
#9  0x00007fb265a68215 in MMModemGsmCardInterface::sendPin(QString const&) () from /usr/lib/kde4/solid_modemmanager04.so
#10 0x00007fb2672bd79e in NetworkInterfaceMonitor::requestPin(QString const&) () from /usr/lib/libknmservice.so.4
#11 0x00007fb2672b0785 in NetworkInterfaceMonitor::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libknmservice.so.4
#12 0x00007fb282813eba in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#13 0x00007fb2667c80b5 in Solid::Control::ModemInterface::unlockRequiredChanged(QString const&) () from /usr/lib/libsolidcontrol.so.4abi1
#14 0x00007fb2667c8251 in Solid::Control::ModemInterface::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libsolidcontrol.so.4abi1
#15 0x00007fb2667b6390 in Solid::Control::ModemGsmCardInterface::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libsolidcontrol.so.4abi1
#16 0x00007fb282817a6a in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#17 0x00007fb281bd2c64 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#18 0x00007fb281bd7af1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#19 0x00007fb2835c1ae6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#20 0x00007fb28280128c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#21 0x00007fb282804648 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#22 0x00007fb28282b9d3 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib/libQtCore.so.4
#23 0x00007fb27e4780cf in g_main_dispatch (context=0xb93de0) at /tmp/buildd/glib2.0-2.30.2/./glib/gmain.c:2442
#24 g_main_context_dispatch (context=0xb93de0) at /tmp/buildd/glib2.0-2.30.2/./glib/gmain.c:2998
#25 0x00007fb27e4788c8 in g_main_context_iterate (context=0xb93de0, block=<optimized out>, dispatch=1, self=<optimized out>) at /tmp/buildd/glib2.0-2.30.2/./glib/gmain.c:3076
#26 0x00007fb27e478a99 in g_main_context_iteration (context=0xb93de0, may_block=1) at /tmp/buildd/glib2.0-2.30.2/./glib/gmain.c:3139
#27 0x00007fb28282be2f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#28 0x00007fb281c76eee in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtGui.so.4
#29 0x00007fb282800492 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#30 0x00007fb28280068f in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#31 0x00007fb282804837 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#32 0x00007fb2701f23b5 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_kded4.so
#33 0x0000000000408b82 in _start ()

Reported using DrKonqi