Version:           1.5.94 (using KDE 3.1.94 (CVS >= 20031206), compiled sources)
Compiler:          gcc version 2.96 20000731 (Red Hat Linux 7.2 2.96-112.7.2)
OS:          Linux (i686) release 2.4.17

I was about to configure the receiving mail server (pop), and clicked on the button for the encryption mode "check what the server supports", where kmail crashed with the following dump:

[New Thread 1024 (LWP 20335)]
0x42135219 in __wait4 () from /lib/i686/libc.so.6
#0  0x42135219 in __wait4 () from /lib/i686/libc.so.6
#1  0x421351a9 in __libc_waitpid (pid=20340, stat_loc=0x0, options=0)
    at ../sysdeps/unix/sysv/linux/waitpid.c:26
#2  0x41fdd6d3 in waitpid (pid=20340, stat_loc=0x0, options=0)
    at wrapsyscall.c:172
#3  0x414ea0c8 in KCrash::defaultCrashHandler (sig=11) at kcrash.cpp:246
#4  0x41fdba65 in pthread_sighandler (signo=11, ctx=
      {gs = 7, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 49168, edi = 3221217984, esi = 3221218000, ebp = 3221217736, esp = 3221217736, ebx = 1104705940, edx = 7667814, ecx = 0, eax = 7667814, trapno = 14, err = 6, eip = 134533302, cs = 35, __csh = 0, eflags = 66198, esp_at_signal = 3221217736, ss = 43, __ssh = 0, fpstate = 0xbfffdf48, oldmask = 2147483648, cr2 = 7667814}) at signals.c:97
#5  <signal handler called>
#6  0x0804d0b6 in QShared::ref (this=0x750066) at /opt/qt3/include/qshared.h:49
#7  0x41bdb30f in QString::QString (this=0xbfffe270, s=@0x869296c)
    at tools/qstring.cpp:1372
#8  0x41bdbc09 in QString::arg (this=0xbfffe2d0, a=@0x869296c, fieldWidth=0)
    at tools/qstring.cpp:1803
#9  0x40f522f1 in KIO::buildErrorString (errorCode=0, errorText=@0x869296c)
    at global.cpp:376
#10 0x40f509cf in KIO::Job::errorString (this=0x8692920) at global.cpp:175
#11 0x40f355dc in KIO::Job::showErrorDialog (this=0x8692920, parent=0x0)
    at job.cpp:274
#12 0x40278653 in KMServerTest::slotSlaveResult (this=0x85b2a50, 
    aSlave=0x83ac3f0, error=23) at kmservertest.cpp:152
#13 0x40278c3b in KMServerTest::qt_invoke (this=0x85b2a50, _id=6, 
    _o=0xbfffe470) at kmservertest.moc:160
#14 0x4191374f in QObject::activate_signal (this=0x81e7cd0, clist=0x8255cb8, 
    o=0xbfffe470) at kernel/qobject.cpp:2357
#15 0x40f3094a in KIO::Scheduler::slaveError (this=0x81e7cd0, t0=0x83ac3f0, 
    t1=23, t2=@0x8637a40) at scheduler.moc:153
#16 0x40f2fc6d in KIO::Scheduler::slotSlaveError (this=0x81e7cd0, errorNr=23, 
    errorMsg=@0x8637a40) at scheduler.cpp:784
#17 0x40f30b39 in KIO::Scheduler::qt_invoke (this=0x81e7cd0, _id=7, 
    _o=0xbfffe590) at scheduler.moc:164
#18 0x419135e7 in QObject::activate_signal (this=0x83ac3f0, clist=0x83ad3d8, 
    o=0xbfffe590) at kernel/qobject.cpp:2333
#19 0x40f2837e in KIO::SlaveInterface::error (this=0x83ac3f0, t0=23, 
    t1=@0xbfffe700) at slaveinterface.moc:214
#20 0x40f26c3f in KIO::SlaveInterface::dispatch (this=0x83ac3f0, _cmd=102, 
    rawdata=@0xbfffe750) at slaveinterface.cpp:292
#21 0x40f2649e in KIO::SlaveInterface::dispatch (this=0x83ac3f0)
    at slaveinterface.cpp:191
#22 0x40f23e84 in KIO::Slave::gotInput (this=0x83ac3f0) at slave.cpp:294
#23 0x40f2597b in KIO::Slave::qt_invoke (this=0x83ac3f0, _id=4, _o=0xbfffe880)
    at slave.moc:113
#24 0x419135e7 in QObject::activate_signal (this=0x82b9aa0, clist=0x83ac648, 
    o=0xbfffe880) at kernel/qobject.cpp:2333
#25 0x4191399e in QObject::activate_signal (this=0x82b9aa0, signal=2, param=13)
    at kernel/qobject.cpp:2426
#26 0x41c49678 in QSocketNotifier::activated (this=0x82b9aa0, t0=13)
    at .moc/debug-shared-mt/moc_qsocketnotifier.cpp:85
#27 0x419315aa in QSocketNotifier::event (this=0x82b9aa0, e=0xbfffead0)
    at kernel/qsocketnotifier.cpp:271
#28 0x418b3902 in QApplication::internalNotify (this=0xbffff8b0, 
    receiver=0x82b9aa0, e=0xbfffead0) at kernel/qapplication.cpp:2582
#29 0x418b2a32 in QApplication::notify (this=0xbffff8b0, receiver=0x82b9aa0, 
    e=0xbfffead0) at kernel/qapplication.cpp:2305
#30 0x414618ec in KApplication::notify (this=0xbffff8b0, receiver=0x82b9aa0, 
    event=0xbfffead0) at kapplication.cpp:503
#31 0x40543d62 in QApplication::sendEvent (receiver=0x82b9aa0, 
    event=0xbfffead0) at /opt/qt3/include/qapplication.h:492
#32 0x418a2c9f in QEventLoop::activateSocketNotifiers (this=0x807cc88)
    at kernel/qeventloop_unix.cpp:579
#33 0x4185f017 in QEventLoop::processEvents (this=0x807cc88, flags=4)
    at kernel/qeventloop_x11.cpp:340
#34 0x418c7dd5 in QEventLoop::enterLoop (this=0x807cc88)
    at kernel/qeventloop.cpp:198
#35 0x418b3b17 in QApplication::enter_loop (this=0xbffff8b0)
    at kernel/qapplication.cpp:2737
#36 0x41a9cd7f in QDialog::exec (this=0xbfffecb0) at dialogs/qdialog.cpp:370
#37 0x4016ec42 in NetworkPageReceivingTab::slotModifySelectedAccount (
    this=0x858ea08) at configuredialog.cpp:1384
#38 0x40186feb in NetworkPageReceivingTab::qt_invoke (this=0x858ea08, _id=47, 
    _o=0xbffff000) at configuredialog_p.moc:849
#39 0x419135e7 in QObject::activate_signal (this=0x85933c0, clist=0x8593ab0, 
    o=0xbffff000) at kernel/qobject.cpp:2333
#40 0x41913466 in QObject::activate_signal (this=0x85933c0, signal=4)
    at kernel/qobject.cpp:2302
#41 0x41c5155c in QButton::clicked (this=0x85933c0)
    at .moc/debug-shared-mt/moc_qbutton.cpp:152
#42 0x419a2216 in QButton::mouseReleaseEvent (this=0x85933c0, e=0xbffff380)
    at widgets/qbutton.cpp:820
#43 0x41947918 in QWidget::event (this=0x85933c0, e=0xbffff380)
    at kernel/qwidget.cpp:4426
#44 0x418b3902 in QApplication::internalNotify (this=0xbffff8b0, 
    receiver=0x85933c0, e=0xbffff380) at kernel/qapplication.cpp:2582
#45 0x418b2eca in QApplication::notify (this=0xbffff8b0, receiver=0x85933c0, 
    e=0xbffff380) at kernel/qapplication.cpp:2368
#46 0x414618ec in KApplication::notify (this=0xbffff8b0, receiver=0x85933c0, 
    event=0xbffff380) at kapplication.cpp:503
#47 0x4184dfaa in QApplication::sendSpontaneousEvent (receiver=0x85933c0, 
    event=0xbffff380) at kernel/qapplication.h:495
#48 0x41846ecb in QETWidget::translateMouseEvent (this=0x85933c0, 
    event=0xbffff6a0) at kernel/qapplication_x11.cpp:4351
#49 0x4184497e in QApplication::x11ProcessEvent (this=0xbffff8b0, 
    event=0xbffff6a0) at kernel/qapplication_x11.cpp:3529
#50 0x4185e672 in QEventLoop::processEvents (this=0x807cc88, flags=4)
    at kernel/qeventloop_x11.cpp:192
#51 0x418c7dd5 in QEventLoop::enterLoop (this=0x807cc88)
    at kernel/qeventloop.cpp:198
#52 0x418c7cf8 in QEventLoop::exec (this=0x807cc88)
    at kernel/qeventloop.cpp:145
#53 0x418b3a9b in QApplication::exec (this=0xbffff8b0)
    at kernel/qapplication.cpp:2705
#54 0x0804c3eb in main (argc=8, argv=0xbffffa54) at main.cpp:212