Application that crashed: kmail
Version of the application: 1.12.4
KDE Version: 4.3.4 (KDE 4.3.4) "release 2"
Qt Version: 4.5.3
Operating System: Linux 2.6.31.5-0.1-desktop x86_64
Distribution: "openSUSE 11.2 (x86_64)"

What I was doing when the application crashed:
set kmail to automatically check check for new mails every x minutes -> look for mail in IMAP-inbox (I have 2 of them active) -> close internet connection -> wait for timeout-notification (if you click "Get Mail"-button after disconnecting, kmail doesn't crash here) -> clicking OK crashes kmail (probably bug 191589, but the CrashReporter shows only duplicates of this, not 191589 itself)

 -- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[KCrash Handler]
#5  KIO::Slave::deref (this=0x18932e0) at /usr/src/debug/kdelibs-4.3.4/kio/kio/slave.cpp:242
#6  0x00007f129b5d62d9 in KIO::Slave::gotInput (this=0x18932e0) at /usr/src/debug/kdelibs-4.3.4/kio/kio/slave.cpp:335
#7  0x00007f129b5d83ec in KIO::Slave::qt_metacall (this=0x18932e0, _c=InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffae3583f0) at /usr/src/debug/kdelibs-4.3.4/build/kio/slave.moc:76
#8  0x00007f12a20a3fbc in QMetaObject::activate (sender=0x18dba80, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0xa2fe0) at kernel/qobject.cpp:3113
#9  0x00007f129b4f16a7 in KIO::ConnectionPrivate::dequeue (this=0x18ba4c0) at /usr/src/debug/kdelibs-4.3.4/kio/kio/connection.cpp:82
#10 0x00007f129b4f17cd in KIO::Connection::qt_metacall (this=0x18dba80, _c=InvokeMetaMethod, _id=<value optimized out>, _a=0x19d4230) at /usr/src/debug/kdelibs-4.3.4/build/kio/connection.moc:73
#11 0x00007f12a209e2d9 in QObject::event (this=0x18dba80, e=0x19d3680) at kernel/qobject.cpp:1111
#12 0x00007f12a155a2ac in QApplicationPrivate::notify_helper (this=0x6452c0, receiver=0x18dba80, e=0x19d3680) at kernel/qapplication.cpp:4065
#13 0x00007f12a156157e in QApplication::notify (this=0x7fffae358ea0, receiver=0x18dba80, e=0x19d3680) at kernel/qapplication.cpp:4030
#14 0x00007f12a36fbf26 in KApplication::notify (this=0x7fffae358ea0, receiver=0x18dba80, event=0x19d3680) at /usr/src/debug/kdelibs-4.3.4/kdeui/kernel/kapplication.cpp:302
#15 0x00007f12a208eddc in QCoreApplication::notifyInternal (this=0x7fffae358ea0, receiver=0x18dba80, event=0x19d3680) at kernel/qcoreapplication.cpp:610
#16 0x00007f12a208f9ea in sendEvent (event=<value optimized out>, receiver=<value optimized out>) at kernel/qcoreapplication.h:213
#17 QCoreApplicationPrivate::sendPostedEvents (event=<value optimized out>, receiver=<value optimized out>) at kernel/qcoreapplication.cpp:1247
#18 0x00007f12a20b7803 in sendPostedEvents () at kernel/qcoreapplication.h:218
#19 postEventSourceDispatch () at kernel/qeventdispatcher_glib.cpp:276
#20 0x00007f1299120dde in g_main_dispatch (context=<value optimized out>) at gmain.c:1960
#21 IA__g_main_context_dispatch (context=<value optimized out>) at gmain.c:2513
#22 0x00007f12991247a8 in g_main_context_iterate (context=0x64b520, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2591
#23 0x00007f12991248d0 in IA__g_main_context_iteration (context=0x64b520, may_block=1) at gmain.c:2654
#24 0x00007f12a20b73a3 in QEventDispatcherGlib::processEvents (this=0x60e0b0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:407
#25 0x00007f12a15ed31e in QGuiEventDispatcherGlib::processEvents (this=0x18932e0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#26 0x00007f12a208d712 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#27 0x00007f12a208dae4 in QEventLoop::exec (this=0x7fffae358cf0, flags=) at kernel/qeventloop.cpp:201
#28 0x00007f12a208fc99 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#29 0x0000000000402ff9 in main (argc=<value optimized out>, argv=<value optimized out>) at /usr/src/debug/kdepim-4.3.4/kmail/main.cpp:146

This bug may be a duplicate of or related to bug 211364

Reported using DrKonqi