Application that crashed: kontact
Version of the application: 4.3.0 pre
KDE Version: 4.2.90 (KDE 4.2.90 (KDE 4.3 Beta2)) "release 139"
Qt Version: 4.5.1
Operating System: Linux 2.6.30-rc6-git3-4-default i686
Distribution: "openSUSE 11.2 Milestone 2 (i586)"

What I was doing when the application crashed:
Kontact crash from menu File - Exit.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  0x00000000 in ?? ()
#7  0xb6f18687 in qDeleteAll<QList<KIO::Slave*>::const_iterator> (end=<value optimized out>, begin=<value optimized out>) at /usr/include/QtCore/qalgorithms.h:350
#8  qDeleteAll<SlaveList> (end=<value optimized out>, begin=<value optimized out>) at /usr/include/QtCore/qalgorithms.h:358
#9  ~ProtocolInfo (end=<value optimized out>, begin=<value optimized out>) at /usr/src/debug/kdelibs-4.2.90/kio/kio/scheduler.cpp:171
#10 qDeleteAll<QHash<QString, KIO::SchedulerPrivate::ProtocolInfo*>::const_iterator> (end=<value optimized out>, begin=<value optimized out>) at /usr/include/QtCore/qalgorithms.h:350
#11 0xb6f1498e in qDeleteAll<KIO::SchedulerPrivate::ProtocolInfoDict> (c=<value optimized out>) at /usr/include/QtCore/qalgorithms.h:358
#12 ~SchedulerPrivate (c=<value optimized out>) at /usr/src/debug/kdelibs-4.2.90/kio/kio/scheduler.cpp:103
#13 <anonymous struct>::destroy(void) (c=<value optimized out>) at /usr/src/debug/kdelibs-4.2.90/kio/kio/scheduler.cpp:209
#14 0xb6e40279 in KCleanUpGlobalStatic::~KCleanUpGlobalStatic (this=0xb704bff4, __in_chrg=<value optimized out>) at /usr/src/debug/kdelibs-4.2.90/kdecore/kernel/kglobal.h:62
#15 0xb568b4e9 in __run_exit_handlers (status=0, listp=0xb57ba304, run_list_atexit=true) at exit.c:78
#16 0xb568b54d in *__GI_exit (status=0) at exit.c:100
#17 0xb5673ac6 in __libc_start_main (main=0x804ab10 <main(int, char **)>, argc=1, ubp_av=0xbfbceb54, init=0x804c310 <__libc_csu_init>, fini=0x804c300 <__libc_csu_fini>, 
    rtld_fini=0xb7f94020 <_dl_fini>, stack_end=0xbfbceb4c) at libc-start.c:252
#18 0x0804a761 in _start () at ../sysdeps/i386/elf/start.S:119

Reported using DrKonqi