Application: kontact (4.4.7)
KDE Platform Version: 4.4.5 (KDE 4.4.5)
Qt Version: 4.6.3
Operating System: Linux 2.6.32-5-amd64 x86_64
Distribution: Debian GNU/Linux 6.0.1 (squeeze)

-- Information about the crash:
i was in kmail, checking and sorting emails. i had just changed some filters when i saw an uncorrect named folder. I thought that kmail/kontact would also change the name in the filters name automatical and changed the name.

the program crashed, but the name was more or less chenged in the filter. it was mor or less linked to the old name. i haven#t it anymore, sorry. i was stupid and changed it before i wrote this.

But here one more info, it was an imap-box/mail-account.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
The current source language is "auto; currently asm".
[KCrash Handler]
#5  0x00007f0198f8c140 in QListData::shared_null () from /usr/lib/libQtCore.so.4
#6  0x00007f017f592e7d in ?? () from /usr/lib/libkmailprivate.so.4
#7  0x00007f017f878900 in ?? () from /usr/lib/libkmailprivate.so.4
#8  0x00007f017f87aa2b in ?? () from /usr/lib/libkmailprivate.so.4
#9  0x00007f0198c882e6 in QMetaObject::activate (sender=0x29830e0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xffffffffffd94978) at kernel/qobject.cpp:3295
#10 0x00007f019908e802 in KJob::result (this=0x38baa00, _t1=0x29830e0) at ./kjob.moc:194
#11 0x00007f019908eaa0 in KJob::emitResult (this=0x29830e0) at ../../kdecore/jobs/kjob.cpp:312
#12 0x00007f01963db293 in KIO::SimpleJob::slotFinished (this=0x29830e0) at ../../kio/kio/job.cpp:517
#13 0x00007f01963dbc57 in KIO::TransferJob::slotFinished (this=0x29830e0) at ../../kio/kio/job.cpp:1097
#14 0x00007f01963d8e96 in KIO::SimpleJob::slotError (this=0x29830e0, err=<value optimized out>, errorText=...) at ../../kio/kio/job.cpp:529
#15 0x00007f01963d8fd8 in KIO::SimpleJob::qt_metacall (this=0x29830e0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffb87c4fe0) at ./jobclasses.moc:170
#16 0x00007f01963d9160 in KIO::TransferJob::qt_metacall (this=0x38baa00, _c=43528416, _id=60423472, _a=0xffffffffffd94978) at ./jobclasses.moc:355
#17 0x00007f0198c882e6 in QMetaObject::activate (sender=0x2c73ed0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xffffffffffd94978) at kernel/qobject.cpp:3295
#18 0x00007f01964997b6 in KIO::SlaveInterface::error (this=0x38baa00, _t1=111, _t2=<value optimized out>) at ./slaveinterface.moc:159
#19 0x00007f019649c7bd in KIO::SlaveInterface::dispatch (this=0x2c73ed0, _cmd=102, rawdata=...) at ../../kio/kio/slaveinterface.cpp:208
#20 0x00007f0196499ab3 in KIO::SlaveInterface::dispatch (this=0x2c73ed0) at ../../kio/kio/slaveinterface.cpp:91
#21 0x00007f019648df26 in KIO::Slave::gotInput (this=0x2c73ed0) at ../../kio/kio/slave.cpp:324
#22 0x00007f019648e10c in KIO::Slave::qt_metacall (this=0x2c73ed0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffb87c53e0) at ./slave.moc:82
#23 0x00007f0198c882e6 in QMetaObject::activate (sender=0x278c220, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xffffffffffd94978) at kernel/qobject.cpp:3295
#24 0x00007f01963a9b17 in KIO::ConnectionPrivate::dequeue (this=0x2632580) at ../../kio/kio/connection.cpp:82
#25 0x00007f01963a9c3d in KIO::Connection::qt_metacall (this=0x278c220, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x263b2d0) at ./connection.moc:79
#26 0x00007f0198c84e29 in QObject::event (this=0x278c220, e=0x2f0bf70) at kernel/qobject.cpp:1248
#27 0x00007f019801532c in QApplicationPrivate::notify_helper (this=0x241ca70, receiver=0x278c220, e=0x2f0bf70) at kernel/qapplication.cpp:4302
#28 0x00007f019801b80b in QApplication::notify (this=0x7fffb87c5ef0, receiver=0x278c220, e=0x2f0bf70) at kernel/qapplication.cpp:4185
#29 0x00007f019965d7a6 in KApplication::notify (this=0x7fffb87c5ef0, receiver=0x278c220, event=0x2f0bf70) at ../../kdeui/kernel/kapplication.cpp:302
#30 0x00007f0198c7509c in QCoreApplication::notifyInternal (this=0x7fffb87c5ef0, receiver=0x278c220, event=0x2f0bf70) at kernel/qcoreapplication.cpp:726
#31 0x00007f0198c78744 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x23eeed0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#32 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x23eeed0) at kernel/qcoreapplication.cpp:1367
#33 0x00007f0198c9eb73 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#34 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#35 0x00007f01905a66f2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#36 0x00007f01905aa568 in ?? () from /lib/libglib-2.0.so.0
#37 0x00007f01905aa71c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#38 0x00007f0198c9e6b3 in QEventDispatcherGlib::processEvents (this=0x23ee640, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#39 0x00007f01980c519e in QGuiEventDispatcherGlib::processEvents (this=0x38baa00, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x00007f0198c739c2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#41 0x00007f0198c73d9c in QEventLoop::exec (this=0x7fffb87c5e30, flags=) at kernel/qeventloop.cpp:201
#42 0x00007f0198c78a2b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#43 0x0000000000403e6e in _start ()

Reported using DrKonqi