Application that crashed: kontact
Version of the application: 4.3.0
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.30-020630-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I am starting kontact via "autostart" on my Ubuntu 9.04 64Bit. Kde is version 4.3 via PPA backport.
When Kontact starts then it triggers a kqallet password request and crashes shortly after that. When I enter the kwallet password and start kontact it usually starts without a crash.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f0c309657d1 in ?? () from /usr/lib/libkmailprivate.so.4
#6  0x00007f0c3096e3f0 in ?? () from /usr/lib/libkmailprivate.so.4
#7  0x00007f0c3096e5f1 in ?? () from /usr/lib/libkmailprivate.so.4
#8  0x00007f0c308f3a94 in KMail::AccountManager::processNextCheck () from /usr/lib/libkmailprivate.so.4
#9  0x00007f0c308f4542 in KMail::AccountManager::singleCheckMail () from /usr/lib/libkmailprivate.so.4
#10 0x00007f0c308f4971 in KMail::AccountManager::checkMail () from /usr/lib/libkmailprivate.so.4
#11 0x00007f0c30ab83ec in KMMainWidget::qt_metacall () from /usr/lib/libkmailprivate.so.4
#12 0x00007f0c48f1bea2 in QMetaObject::activate (sender=0x50f9880, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x5456d80) at kernel/qobject.cpp:3113
#13 0x00007f0c48f2114f in QSingleShotTimer::timerEvent (this=0x50f9880) at kernel/qtimer.cpp:298
#14 0x00007f0c48f16263 in QObject::event (this=0x50f9880, e=0x7fff6994f3b0) at kernel/qobject.cpp:1075
#15 0x00007f0c49a84f4d in QApplicationPrivate::notify_helper (this=0x245ebc0, receiver=0x50f9880, e=0x7fff6994ff90) at kernel/qapplication.cpp:4056
#16 0x00007f0c49a8d18a in QApplication::notify (this=0x7fff699553a0, receiver=0x50f9880, e=0x7fff6994ff90) at kernel/qapplication.cpp:4021
#17 0x00007f0c4ae8971b in KApplication::notify (this=0x7fff699553a0, receiver=0x50f9880, event=0x7fff6994ff90) at /build/buildd/kde4libs-4.3.0/kdeui/kernel/kapplication.cpp:302
#18 0x00007f0c48f066ac in QCoreApplication::notifyInternal (this=0x7fff699553a0, receiver=0x50f9880, event=0x7fff6994ff90) at kernel/qcoreapplication.cpp:610
#19 0x00007f0c48f33516 in QTimerInfoList::activateTimers (this=0x244a460) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#20 0x00007f0c48f2fb2d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#21 0x00007f0c4265720a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#22 0x00007f0c4265a8e0 in ?? () from /usr/lib/libglib-2.0.so.0
#23 0x00007f0c4265aa7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#24 0x00007f0c48f2fa8f in QEventDispatcherGlib::processEvents (this=0x24200a0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#25 0x00007f0c49b1dbdf in QGuiEventDispatcherGlib::processEvents (this=0x1b0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#26 0x00007f0c48f04f42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 1771373056}) at kernel/qeventloop.cpp:149
#27 0x00007f0c48f05314 in QEventLoop::exec (this=0x7fff69950360, flags={i = 1771373664}) at kernel/qeventloop.cpp:201
#28 0x00007f0c4af1103e in KWallet::Wallet::openWallet (name=@0x7fff699504e0, w=<value optimized out>, ot=KWallet::Wallet::Synchronous) at /build/buildd/kde4libs-4.3.0/kdeui/util/kwallet.cpp:252
#29 0x00007f0c309cdd8c in KMKernel::wallet () from /usr/lib/libkmailprivate.so.4
#30 0x00007f0c30952fb0 in ?? () from /usr/lib/libkmailprivate.so.4
#31 0x00007f0c309537c4 in ?? () from /usr/lib/libkmailprivate.so.4
#32 0x00007f0c3095e270 in ?? () from /usr/lib/libkmailprivate.so.4
#33 0x00007f0c3096ef8c in ?? () from /usr/lib/libkmailprivate.so.4
#34 0x00007f0c308f562e in KMail::AccountManager::readConfig () from /usr/lib/libkmailprivate.so.4
#35 0x00007f0c309df594 in KMKernel::init () from /usr/lib/libkmailprivate.so.4
#36 0x00007f0c310e9d59 in ?? () from /usr/lib/kde4/kmailpart.so
#37 0x00007f0c310ea8bf in KPluginFactory::createPartInstance<KMailPart> () from /usr/lib/kde4/kmailpart.so
#38 0x00007f0c49659c9d in KPluginFactory::create (this=0x31d0590, iface=0x7f0c4b7748c0 "KParts::ReadOnlyPart", parentWidget=0x2ae6170, parent=0x2ae6170, args=@0x7fff699514b0, keyword=@0x7fff69951470)
    at /build/buildd/kde4libs-4.3.0/kdecore/util/kpluginfactory.cpp:191
#39 0x00007f0c4d716a9c in Kontact::Core::createPart () from /usr/lib/libkontactinterfaces.so.4
#40 0x00007f0c31e45af0 in ?? () from /usr/lib/kde4/kontact_kmailplugin.so
#41 0x00007f0c4d7179a9 in Kontact::Plugin::part () from /usr/lib/libkontactinterfaces.so.4
#42 0x00007f0c31e46439 in ?? () from /usr/lib/kde4/kontact_kmailplugin.so
#43 0x00007f0c4d719fd2 in Kontact::UniqueAppHandler::newInstance () from /usr/lib/libkontactinterfaces.so.4
#44 0x00007f0c4d71a04a in Kontact::UniqueAppHandler::qt_metacall () from /usr/lib/libkontactinterfaces.so.4
#45 0x00007f0c49220453 in QDBusConnectionPrivate::deliverCall (this=0x243d7a0, object=0x31a0240, msg=@0x40939e0, metaTypes=@0x7fff69951bb8, slotIdx=4) at qdbusintegrator.cpp:891
#46 0x00007f0c4922166f in QDBusConnectionPrivate::activateCall (this=0x243d7a0, object=0x31a0240, flags=272, msg=@0x40939e0) at qdbusintegrator.cpp:796
#47 0x00007f0c49221bc3 in QDBusConnectionPrivate::activateObject (this=0x243d7a0, node=@0x40939b8, msg=@0x40939e0, pathStartPos=21) at qdbusintegrator.cpp:1370
#48 0x00007f0c492220b8 in QDBusActivateObjectEvent::placeMetaCall (this=0x4093970) at qdbusintegrator.cpp:1464
#49 0x00007f0c48f165d8 in QObject::event (this=0x31a0240, e=0x4093970) at kernel/qobject.cpp:1111
#50 0x00007f0c49a84f4d in QApplicationPrivate::notify_helper (this=0x245ebc0, receiver=0x31a0240, e=0x4093970) at kernel/qapplication.cpp:4056
#51 0x00007f0c49a8d18a in QApplication::notify (this=0x7fff699553a0, receiver=0x31a0240, e=0x4093970) at kernel/qapplication.cpp:4021
#52 0x00007f0c4ae8971b in KApplication::notify (this=0x7fff699553a0, receiver=0x31a0240, event=0x4093970) at /build/buildd/kde4libs-4.3.0/kdeui/kernel/kapplication.cpp:302
#53 0x00007f0c48f066ac in QCoreApplication::notifyInternal (this=0x7fff699553a0, receiver=0x31a0240, event=0x4093970) at kernel/qcoreapplication.cpp:610
#54 0x00007f0c48f0731a in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x2420850) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#55 0x00007f0c48f2fe03 in postEventSourceDispatch (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#56 0x00007f0c4265720a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#57 0x00007f0c4265a8e0 in ?? () from /usr/lib/libglib-2.0.so.0
#58 0x00007f0c4265aa7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#59 0x00007f0c48f2fa8f in QEventDispatcherGlib::processEvents (this=0x24200a0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#60 0x00007f0c49b1dbdf in QGuiEventDispatcherGlib::processEvents (this=0x1b0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#61 0x00007f0c48f04f42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 1771382400}) at kernel/qeventloop.cpp:149
#62 0x00007f0c48f05314 in QEventLoop::exec (this=0x7fff699527e0, flags={i = 1771383008}) at kernel/qeventloop.cpp:201
#63 0x00007f0c4af1103e in KWallet::Wallet::openWallet (name=@0x7fff69952960, w=<value optimized out>, ot=KWallet::Wallet::Synchronous) at /build/buildd/kde4libs-4.3.0/kdeui/util/kwallet.cpp:252
#64 0x00007f0c309cdd8c in KMKernel::wallet () from /usr/lib/libkmailprivate.so.4
#65 0x00007f0c30952ea0 in ?? () from /usr/lib/libkmailprivate.so.4
#66 0x00007f0c308f2022 in KMail::AccountManager::readPasswords () from /usr/lib/libkmailprivate.so.4
#67 0x00007f0c30950789 in ?? () from /usr/lib/libkmailprivate.so.4
#68 0x00007f0c3095b238 in ?? () from /usr/lib/libkmailprivate.so.4
#69 0x00007f0c3098b8a7 in ?? () from /usr/lib/libkmailprivate.so.4
#70 0x00007f0c30856fcc in KMail::FolderView::slotFolderExpanded () from /usr/lib/libkmailprivate.so.4
#71 0x00007f0c30861752 in KMail::FolderView::qt_metacall () from /usr/lib/libkmailprivate.so.4
#72 0x00007f0c30864946 in ?? () from /usr/lib/libkmailprivate.so.4
#73 0x00007f0c48f1bea2 in QMetaObject::activate (sender=0x37c31a0, from_signal_index=<value optimized out>, to_signal_index=101, argv=0x5456d80) at kernel/qobject.cpp:3113
#74 0x00007f0c49fe7f92 in QTreeWidget::itemExpanded (this=0x1b0, _t1=0x4a2cbf0) at .moc/release-shared/moc_qtreewidget.cpp:236
#75 0x00007f0c49ff4fcb in QTreeWidget::qt_metacall (this=0x37c31a0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff69953090) at .moc/release-shared/moc_qtreewidget.cpp:149
#76 0x00007f0c4d43f445 in KPIM::TreeWidget::qt_metacall () from /usr/lib/libkdepim.so.4
#77 0x00007f0c4d4993c6 in KPIM::FolderTreeWidget::qt_metacall () from /usr/lib/libkdepim.so.4
#78 0x00007f0c308616e5 in KMail::FolderView::qt_metacall () from /usr/lib/libkmailprivate.so.4
#79 0x00007f0c30864946 in ?? () from /usr/lib/libkmailprivate.so.4
#80 0x00007f0c48f1bea2 in QMetaObject::activate (sender=0x37c31a0, from_signal_index=<value optimized out>, to_signal_index=69, argv=0x5456d80) at kernel/qobject.cpp:3113
#81 0x00007f0c49faa422 in QTreeView::expanded (this=0x1b0, _t1=<value optimized out>) at .moc/release-shared/moc_qtreeview.cpp:213
#82 0x00007f0c49fbbb10 in QTreeView::expand (this=0x37c31a0, index=@0x7fff69953120) at itemviews/qtreeview.cpp:752
#83 0x00007f0c49fefef5 in QTreeWidget::setItemExpanded (this=0x37c31a0, item=0x4a2cbf0, expand=<value optimized out>) at itemviews/qtreewidget.cpp:3120
#84 0x00007f0c3085aebe in KMail::FolderView::restoreItemStates () from /usr/lib/libkmailprivate.so.4
#85 0x00007f0c308614af in KMail::FolderView::reload () from /usr/lib/libkmailprivate.so.4
#86 0x00007f0c30aa2c7d in KMMainWidget::readConfig () from /usr/lib/libkmailprivate.so.4
#87 0x00007f0c30ab41b9 in KMMainWidget::KMMainWidget () from /usr/lib/libkmailprivate.so.4
#88 0x00007f0c310e9fa6 in ?? () from /usr/lib/kde4/kmailpart.so
#89 0x00007f0c310ea8bf in KPluginFactory::createPartInstance<KMailPart> () from /usr/lib/kde4/kmailpart.so
#90 0x00007f0c49659c9d in KPluginFactory::create (this=0x31d0590, iface=0x7f0c4b7748c0 "KParts::ReadOnlyPart", parentWidget=0x2ae6170, parent=0x2ae6170, args=@0x7fff699539a0, keyword=@0x7fff69953960)
    at /build/buildd/kde4libs-4.3.0/kdecore/util/kpluginfactory.cpp:191
#91 0x00007f0c4d716a9c in Kontact::Core::createPart () from /usr/lib/libkontactinterfaces.so.4
#92 0x00007f0c31e45af0 in ?? () from /usr/lib/kde4/kontact_kmailplugin.so
#93 0x00007f0c4d7179a9 in Kontact::Plugin::part () from /usr/lib/libkontactinterfaces.so.4
#94 0x00007f0c4d93b8a6 in Kontact::MainWindow::selectPlugin () from /usr/lib/libkontactprivate.so.4
#95 0x00007f0c4d9371dc in Kontact::MainWindow::loadSettings () from /usr/lib/libkontactprivate.so.4
#96 0x00007f0c4d93f590 in Kontact::MainWindow::initObject () from /usr/lib/libkontactprivate.so.4
#97 0x00007f0c4d93fa4a in Kontact::MainWindow::MainWindow () from /usr/lib/libkontactprivate.so.4
#98 0x00000000004036c4 in _start ()

Reported using DrKonqi