Version:           Version 4.2 rc1
Using KDE 4.1.87 (KDE 4.1.87 (KDE 4.2 >= 20090101)) (using Devel)
Compiler:          kde4daily 
OS:                Linux
Installed from:    Compiled sources

I added my remote calendar source to akonadi (Webcalendar installation on a local server), I opened korganizer and was able to see all the to-dos and events. Then I tried to add a to-do and pressing Enter caused the application to crash. Shortly after that akonadi crashed, too.

Both backtraces see below:

### BACKTRACE Korganizer ###
Application: KOrganizer (korganizer), signal SIGABRT
KDE4Daily is generating a backtrace - please be patient!
----

#0 Keep DrKonqui Happy
#1  0xb6067dc0 in nanosleep () from /lib/tls/i686/cmov/libc.so.6

#2  0xb6067bfe in sleep () from /lib/tls/i686/cmov/libc.so.6

#3  0xb7e15066 in KCrash::startDrKonqi () from /home/kde4daily//install/kde/lib/libkdeui.so.5

#4  0xb7e15bb8 in KCrash::defaultCrashHandler () from /home/kde4daily//install/kde/lib/libkdeui.so.5

#6  0xb7f6f430 in __kernel_vsyscall ()

#7  0xb5ff6880 in raise () from /lib/tls/i686/cmov/libc.so.6

#8  0xb5ff8248 in abort () from /lib/tls/i686/cmov/libc.so.6

#9  0xb6c2aa4b in qt_message_output () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#10 0xb6c2aacf in qFatal () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#11 0xb6c2af03 in qt_assert () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#12 0xb3a36234 in Akonadi::CollectionFetchJob::CollectionFetchJob () from /home/kde4daily//install/kde/lib/libakonadi-kde.so.4

#13 0xb3a6260d in Akonadi::ItemCollectionFetchJob::doStart () from /home/kde4daily//install/kde/lib/libakonadi-kde.so.4

#14 0xb3a5f347 in Akonadi::JobPrivate::startQueued () from /home/kde4daily//install/kde/lib/libakonadi-kde.so.4

#15 0xb3a72acd in Akonadi::SessionPrivate::startJob () from /home/kde4daily//install/kde/lib/libakonadi-kde.so.4

#16 0xb3a72bd6 in Akonadi::SessionPrivate::doStartNext () from /home/kde4daily//install/kde/lib/libakonadi-kde.so.4

#17 0xb3a73794 in Akonadi::Session::qt_metacall () from /home/kde4daily//install/kde/lib/libakonadi-kde.so.4

#18 0xb6d391e0 in QMetaObject::activate () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#19 0xb6d3966d in QMetaObject::activate () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#20 0xb6d42d31 in QSingleShotTimer::timeout () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#21 0xb6d42e4c in QSingleShotTimer::timerEvent () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#22 0xb6d374d8 in QObject::event () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#23 0xb639f7d5 in QApplicationPrivate::notify_helper () from /home/kde4daily//install/qt-copy/lib/libQtGui.so.4

#24 0xb639fab7 in QApplication::notify () from /home/kde4daily//install/qt-copy/lib/libQtGui.so.4

#25 0xb7da51b1 in KApplication::notify () from /home/kde4daily//install/kde/lib/libkdeui.so.5

#26 0xb6d2494f in QCoreApplication::notifyInternal () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#27 0xb74cf28d in QCoreApplication::sendEvent () from /home/kde4daily//install/qt-copy/lib/libQt3Support.so.4

#28 0xb6d55af7 in QTimerInfoList::activateTimers () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#29 0xb6d53408 in timerSourceDispatch () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#30 0xb57e66f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0

#31 0xb57e9da3 in __ () from /usr/lib/libglib-2.0.so.0

#32 0x08f53c98 in __ ()

#33 0x00000000 in __ ()

### BACKTRACE Akonadi ###
Application: Akonadi Resource (akonadi_kcal_resource), signal SIGABRT
KDE4Daily is generating a backtrace - please be patient!
----

#0 Keep DrKonqui Happy
#1  0xb672adc0 in nanosleep () from /lib/tls/i686/cmov/libc.so.6

#2  0xb672abfe in sleep () from /lib/tls/i686/cmov/libc.so.6

#3  0xb73e2066 in KCrash::startDrKonqi () from /home/kde4daily//install/kde/lib/libkdeui.so.5

#4  0xb73e2bb8 in KCrash::defaultCrashHandler () from /home/kde4daily//install/kde/lib/libkdeui.so.5

#6  0xb7f8c430 in __kernel_vsyscall ()

#7  0xb66b9880 in raise () from /lib/tls/i686/cmov/libc.so.6

#8  0xb66bb248 in abort () from /lib/tls/i686/cmov/libc.so.6

#9  0xb7cfba4b in qt_message_output () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#10 0xb7cfbacf in qFatal () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#11 0xb7cfbf03 in qt_assert () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#12 0xb7f09234 in Akonadi::CollectionFetchJob::CollectionFetchJob () from /home/kde4daily//install/kde/lib/libakonadi-kde.so.4

#13 0xb7f3560d in Akonadi::ItemCollectionFetchJob::doStart () from /home/kde4daily//install/kde/lib/libakonadi-kde.so.4

#14 0xb7f32347 in Akonadi::JobPrivate::startQueued () from /home/kde4daily//install/kde/lib/libakonadi-kde.so.4

#15 0xb7f45acd in Akonadi::SessionPrivate::startJob () from /home/kde4daily//install/kde/lib/libakonadi-kde.so.4

#16 0xb7f45bd6 in Akonadi::SessionPrivate::doStartNext () from /home/kde4daily//install/kde/lib/libakonadi-kde.so.4

#17 0xb7f46794 in Akonadi::Session::qt_metacall () from /home/kde4daily//install/kde/lib/libakonadi-kde.so.4

#18 0xb7e0a1e0 in QMetaObject::activate () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#19 0xb7e0a66d in QMetaObject::activate () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#20 0xb7e13d31 in QSingleShotTimer::timeout () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#21 0xb7e13e4c in QSingleShotTimer::timerEvent () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#22 0xb7e084d8 in QObject::event () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#23 0xb6a637d5 in QApplicationPrivate::notify_helper () from /home/kde4daily//install/qt-copy/lib/libQtGui.so.4

#24 0xb6a63ab7 in QApplication::notify () from /home/kde4daily//install/qt-copy/lib/libQtGui.so.4

#25 0xb73721b1 in KApplication::notify () from /home/kde4daily//install/kde/lib/libkdeui.so.5

#26 0xb7df594f in QCoreApplication::notifyInternal () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#27 0xb7df94d1 in QCoreApplication::sendEvent () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#28 0xb7e26af7 in QTimerInfoList::activateTimers () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#29 0xb7e24408 in timerSourceDispatch () from /home/kde4daily//install/qt-copy/lib/libQtCore.so.4

#30 0xb652e6f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0

#31 0xb6531da3 in __ () from /usr/lib/libglib-2.0.so.0

#32 0x0939a498 in __ ()

#33 0x00000000 in __ ()