Version:            (using Devel)
Installed from:    Compiled sources
OS:                Linux

As soon as I start kde4 svn (as of 6/22/08) it crashes. Here is the trace back:
Application: KCMInit (kcminit), signal SIGSEGV
[Thread debugging using libthread_db enabled]
[New Thread 0x7fa79249d780 (LWP 10611)]
[New Thread 0x41666950 (LWP 10612)]
[KCrash handler]
#5  0x00007fa7915aa26c in KConfigGroup::parent (this=0x7fff9a4d24a0)
    at /var/kde4/kdesvn/kdelibs/kdecore/config/kconfiggroup.cpp:629
#6  0x00007fa7915b4c55 in KConfigGroup::changeGroup (this=0x7fff9a4d24a0, 
    group=0x7fa786008034 "WM")
    at /var/kde4/kdesvn/kdelibs/kdecore/config/kconfiggroup.cpp:651
#7  0x00007fa785ff897e in applyQtColors (kglobals=@0x7fff9a4d24a0, 
    settings=@0x711fc0, newPal=@0x7fff9a4d2570)
    at /var/kde4/kdesvn/kdebase/workspace/kcontrol/krdb/krdb.cpp:129
#8  0x00007fa785ffb9ab in runRdb (flags=<value optimized out>)
    at /var/kde4/kdesvn/kdebase/workspace/kcontrol/krdb/krdb.cpp:589
#9  0x00007fa785ffea02 in kcminit_style ()
    at /var/kde4/kdesvn/kdebase/workspace/kcontrol/style/kcmstyle.cpp:84
#10 0x00007fa7920b39d1 in KCMInit::runModule (this=<value optimized out>, 
    libName=@0x7fff9a4d4110, loader=0x6aac70, service=<value optimized out>)
    at /var/kde4/kdesvn/kdebase/workspace/kcminit/main.cpp:92
#11 0x00007fa7920b41eb in KCMInit::runModules (this=0x7fff9a4d45f0, phase=-1)
    at /var/kde4/kdesvn/kdebase/workspace/kcminit/main.cpp:135
#12 0x00007fa7920b5173 in KCMInit (this=0x7fff9a4d45f0, 
    args=<value optimized out>)
    at /var/kde4/kdesvn/kdebase/workspace/kcminit/main.cpp:222
#13 0x00007fa7920b598d in kdemain (argc=1, argv=0x7fff9a4d48c8)
    at /var/kde4/kdesvn/kdebase/workspace/kcminit/main.cpp:272
#14 0x00007fa78c0961c4 in __libc_start_main () from /lib/libc.so.6
#15 0x0000000000400829 in _start ()
#0  0x00007fa78c115b81 in nanosleep () from /lib/libc.so.6