Application that crashed: kontact
Version of the application: 4.3.1
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I was closing Kontact and this crash occured.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  0x0000000000000001 in ?? ()
#6  0x00007f754c78af26 in qDeleteAll<QHash<QString, KIO::SchedulerPrivate::ProtocolInfo*>::const_iterator> (begin=<value optimized out>, end={i = 0xbdbec0})
    at /usr/include/qt4/QtCore/qalgorithms.h:350
#7  0x00007f754c786d53 in destroy () at /usr/include/qt4/QtCore/qalgorithms.h:358
#8  0x00007f75496486ed in *__GI_exit (status=0) at exit.c:75
#9  0x00007f75496305ad in __libc_start_main (main=0x403750 <_start+1648>, argc=1, ubp_av=0x7fff57d3d478, init=0x404cd0 <__libc_csu_init>, fini=<value optimized out>, rtld_fini=<value optimized out>, 
    stack_end=0x7fff57d3d468) at libc-start.c:252
#10 0x0000000000403109 in _start ()

Reported using DrKonqi