QtCreator crash when deploy qt quit component application to N950 device.

Steps:
1. Create a Qt Quick Component for Meego/Harmattan project.
2. configure the link between the qtcreator and N950 Device for deploying. Set password for Private Key in this process.
3. Run the application with the option that has been set . When the "password request" dialog pop up, input the password that was set just now.
See password.png.
4. Click OK button. QtCreator crash. Here is the core dump.

Program received signal SIGSEGV, Segmentation fault.
0xb4b5c549 in Botan::BigInt::randomize(Botan::RandomNumberGenerator&, unsigned int) ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libBotan.so.1
(gdb) bt
#0 0xb4b5c549 in Botan::BigInt::randomize(Botan::RandomNumberGenerator&, unsigned int) ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libBotan.so.1
#1 0xb4b5db8d in Botan::BigInt::BigInt(Botan::RandomNumberGenerator&, unsigned int) ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libBotan.so.1
#2 0xb4bc9566 in Botan::IF_Core::IF_Core(Botan::RandomNumberGenerator&, Botan::BigInt const&, Botan::BigInt const&, Botan::BigInt const&, Botan::BigInt const&, Botan::BigInt const&, Botan::BigInt const&, Botan::BigInt const&, Botan::BigInt const&) ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libBotan.so.1
#3 0xb4bc76a8 in Botan::IF_Scheme_PrivateKey::PKCS8_load_hook(Botan::RandomNumberGenerator&, bool) ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libBotan.so.1
#4 0xb4bc5a9f in ?? ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libBotan.so.1
#5 0xb4bd939e in Botan::PKCS8::load_key(Botan::DataSource&, Botan::RandomNumberGenerator&, Botan::User_Interface const&) ()
--Type <return> to continue, or q <return> to quit--
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libBotan.so.1
#6 0xb4987102 in ?? ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libUtils.so.1
#7 0xb4987719 in ?? ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libUtils.so.1
#8 0xb4974e27 in ?? ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libUtils.so.1
#9 0xb498bdab in ?? ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libUtils.so.1
#10 0xb498a1b4 in ?? ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libUtils.so.1
#11 0xb498a3b9 in ?? ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libUtils.so.1
#12 0xb498b49f in ?? ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libUtils.so.1
--Type <return> to continue, or q <return> to quit--
#13 0xb49bc644 in ?? ()
from /home/qtth/QtSDK/QtCreator/lib/qtcreator/plugins/Nokia/../../libUtils.so.1
#14 0xb7186093 in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtCore.so.4
#15 0xb7195a34 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtCore.so.4
#16 0xb71ebc47 in QIODevice::readyRead() ()
from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtCore.so.4
#17 0xb739c427 in QAbstractSocketPrivate::canReadNotification() ()
from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtNetwork.so.4
#18 0xb738993b in QAbstractSocketEngine::readNotification() ()
from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtNetwork.so.4
#19 0xb738abaf in QReadNotifier::event(QEvent*) ()
from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtNetwork.so.4
#20 0xb75a028c in QApplicationPrivate::notify_helper(QObject*, QEvent*) ()
from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtGui.so.4
#21 0xb75a72f5 in QApplication::notify(QObject*, QEvent*) ()
from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtGui.so.4
#22 0xb717f90b in QCoreApplication::notifyInternal(QObject*, QEvent*) ()
from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtCore.so.4
#23 0xb71ae753 in socketNotifierSourceDispatch(_GSource*, int (void*), void*) () from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtCore.so.4
--Type <return> to continue, or q <return> to quit--
#24 0xb6ca0855 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#25 0xb6ca4668 in ?? () from /lib/libglib-2.0.so.0
#26 0xb6ca4848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#27 0xb71ae8f1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtCore.so.4
#28 0xb765b9f5 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtGui.so.4
#29 0xb717eaed in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtCore.so.4
#30 0xb717ed7a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtCore.so.4
#31 0xb7180821 in QCoreApplication::exec() ()
from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtCore.so.4
#32 0xb759fb77 in QApplication::exec() ()
from /home/qtth/QtSDK/QtCreator/bin/../lib/qtcreator/libQtGui.so.4
#33 0x08051be0 in ?? ()
#34 0xb6d5bce7 in __libc_start_main (main=0x804f760, argc=1,
ubp_av=0xbffff2e4, init=0x8053bc0, fini=0x8053bb0,
rtld_fini=0xb7ff0b60 <_dl_fini>, stack_end=0xbffff2dc) at libc-start.c:226
#35 0x0804cf51 in ?? ()