Application that crashed: kontact
Version of the application: 4.3.0
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.30-1-amd64 x86_64
Distribution: Debian GNU/Linux testing (squeeze)

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  0x0000000000000000 in ?? ()
#6  0x00007f8a887c24a6 in qDeleteAll<QHash<QString, KIO::SchedulerPrivate::ProtocolInfo*>::const_iterator> (begin=<value optimized out>, end={i = 0xb00370})
    at /usr/include/qt4/QtCore/qalgorithms.h:350
#7  0x00007f8a887be2b3 in destroy () at /usr/include/qt4/QtCore/qalgorithms.h:358
#8  0x00007f8a89b1543d in *__GI_exit (status=0) at exit.c:75
#9  0x00007f8a89afd5cd in __libc_start_main (main=0x403580 <_start+1632>, argc=1, ubp_av=0x7fff4edea818, init=0x404ad0 <__libc_csu_init>, fini=<value optimized out>, rtld_fini=<value optimized out>, 
    stack_end=0x7fff4edea808) at libc-start.c:254
#10 0x0000000000402f49 in _start ()

Reported using DrKonqi