Same symptoms, but another crash occurs at login with KDE 4.1.96:

Alkalmazás: Kontact (kontact), szignál: SIGABRT

Thread 1 (Thread 0xb4b826c0 (LWP 6078)):
[KCrash Handler]
#6  0xb80bc430 in __kernel_vsyscall ()
#7  0xb5a2c880 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb5a2e248 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb5a70423 in ?? () from /lib/tls/i686/cmov/libc.so.6
#10 0xb5a723f5 in free () from /lib/tls/i686/cmov/libc.so.6
#11 0xb5c4e031 in operator delete () from /usr/lib/libstdc++.so.6
#12 0xb5dc98a5 in QEventLoop::~QEventLoop () from /usr/lib/libQtCore.so.4
#13 0xb5dd90ff in QObjectPrivate::deleteChildren () from /usr/lib/libQtCore.so.4
#14 0xb5de1c43 in QObject::~QObject () from /usr/lib/libQtCore.so.4
#15 0xb5ff5c41 in ~KJob (this=0x94e5da8) at /build/buildd/kde4libs-4.1.96/kdecore/jobs/kjob.cpp:72
#16 0xb5ff4a48 in ~KCompositeJob (this=0x94e5da8) at /build/buildd/kde4libs-4.1.96/kdecore/jobs/kcompositejob.cpp:44
#17 0xb0e0117c in Akonadi::Job::~Job () from /usr/lib/libakonadi-kde.so.4
#18 0xb0dcdb6d in Akonadi::CollectionFetchJob::~CollectionFetchJob () from /usr/lib/libakonadi-kde.so.4
#19 0xb5dd8dec in qDeleteInEventHandler () from /usr/lib/libQtCore.so.4
#20 0xb5dda7a3 in QObject::event () from /usr/lib/libQtCore.so.4
#21 0xb62928ec in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#22 0xb629a72e in QApplication::notify () from /usr/lib/libQtGui.so.4
#23 0xb6db304d in KApplication::notify (this=0xbfcbc488, receiver=0x94e5da8, event=0x9423270) at /build/buildd/kde4libs-4.1.96/kdeui/kernel/kapplication.cpp:307
#24 0xb5dcae61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#25 0xb5dcbae5 in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#26 0xb5dcbcdd in QCoreApplication::sendPostedEvents () from /usr/lib/libQtCore.so.4
#27 0xb5df582f in ?? () from /usr/lib/libQtCore.so.4
#28 0xb50996f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#29 0xb509cda3 in ?? () from /usr/lib/libglib-2.0.so.0
#30 0xb509cf61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#31 0xb5df5478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#32 0xb632cea5 in ?? () from /usr/lib/libQtGui.so.4
#33 0xb5dc952a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#34 0xb5dc96ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#35 0xb6e4ca4c in KWallet::Wallet::openWallet (name=@0xbfcbaf38, w=58720257, ot=KWallet::Wallet::Synchronous) at /build/buildd/kde4libs-4.1.96/kdeui/util/kwallet.cpp:248
#36 0xb13ba5b7 in KMKernel::wallet () from /usr/lib/libkmailprivate.so.4
#37 0xb13337b9 in ?? () from /usr/lib/libkmailprivate.so.4
#38 0xb12c6996 in KMail::AccountManager::readPasswords () from /usr/lib/libkmailprivate.so.4
#39 0xb1330b03 in ?? () from /usr/lib/libkmailprivate.so.4
#40 0xb13b38cf in ?? () from /usr/lib/libkmailprivate.so.4
#41 0xb12c8785 in KMail::AccountManager::processNextCheck () from /usr/lib/libkmailprivate.so.4
#42 0xb12c9260 in KMail::AccountManager::singleCheckMail () from /usr/lib/libkmailprivate.so.4
#43 0xb12c96e4 in KMail::AccountManager::checkMail () from /usr/lib/libkmailprivate.so.4
#44 0xb14955f8 in KMMainWidget::slotCheckMail () from /usr/lib/libkmailprivate.so.4
#45 0xb14bf4a1 in KMMainWidget::qt_metacall () from /usr/lib/libkmailprivate.so.4
#46 0xb5ddfa60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#47 0xb5de07e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#48 0xb5de5db7 in ?? () from /usr/lib/libQtCore.so.4
#49 0xb5de5edc in ?? () from /usr/lib/libQtCore.so.4
#50 0xb5dda53f in QObject::event () from /usr/lib/libQtCore.so.4
#51 0xb62928ec in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#52 0xb629a72e in QApplication::notify () from /usr/lib/libQtGui.so.4
#53 0xb6db304d in KApplication::notify (this=0xbfcbc488, receiver=0x928ced0, event=0xbfcbb8ac) at /build/buildd/kde4libs-4.1.96/kdeui/kernel/kapplication.cpp:307
#54 0xb5dcae61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#55 0xb5df8d81 in ?? () from /usr/lib/libQtCore.so.4
#56 0xb5df5520 in ?? () from /usr/lib/libQtCore.so.4
#57 0xb50996f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#58 0xb509cda3 in ?? () from /usr/lib/libglib-2.0.so.0
#59 0xb509cf61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#60 0xb5df5478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#61 0xb632cea5 in ?? () from /usr/lib/libQtGui.so.4
#62 0xb5dc952a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#63 0xb5dc96ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#64 0xb5ff5ad1 in KJob::exec (this=0x94e5da8) at /build/buildd/kde4libs-4.1.96/kdecore/jobs/kjob.cpp:195
#65 0xb09137e0 in ?? () from /usr/lib/kde4/kabc_akonadi.so
#66 0xb72ffc7a in KABC::AddressBook::asyncLoad () from /usr/lib/libkabc.so.4
#67 0xb732e5da in KABC::StdAddressBook::Private::init () from /usr/lib/libkabc.so.4
#68 0xb732faa2 in KABC::StdAddressBook::self () from /usr/lib/libkabc.so.4
#69 0xb1be54c1 in ?? () from /usr/lib/kde4/kontact_specialdatesplugin.so
#70 0xb1bdf8ab in ?? () from /usr/lib/kde4/kontact_specialdatesplugin.so
#71 0xb18ed6bb in ?? () from /usr/lib/kde4/kontact_summaryplugin.so
#72 0xb18ee4e0 in ?? () from /usr/lib/kde4/kontact_summaryplugin.so
#73 0xb18ee64b in ?? () from /usr/lib/kde4/kontact_summaryplugin.so
#74 0xb18ea3b5 in ?? () from /usr/lib/kde4/kontact_summaryplugin.so
#75 0xb7932572 in Kontact::Plugin::part () from /usr/lib/libkontactinterfaces.so.4
#76 0xb795066c in Kontact::MainWindow::selectPlugin () from /usr/lib/libkontactprivate.so.4
#77 0xb794bdb5 in Kontact::MainWindow::selectPlugin () from /usr/lib/libkontactprivate.so.4
#78 0xb794b693 in Kontact::MainWindow::loadSettings () from /usr/lib/libkontactprivate.so.4
#79 0xb79544ed in Kontact::MainWindow::initObject () from /usr/lib/libkontactprivate.so.4
#80 0xb79549d0 in Kontact::MainWindow::MainWindow () from /usr/lib/libkontactprivate.so.4
#81 0x0804c164 in _start ()