Application that crashed: kcmshell4
Version of the application: 
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-15-generic x86_64
Distribution: Ubuntu 9.10

 -- Backtrace:
Application: KDE Control Module (kcmshell4), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  QDataStream::operator>> (this=0x0, i=@0x7fffcf2496ec) at io/qdatastream.cpp:661
#6  0x00007fd788d47fbf in KServiceFactory (this=0xc34190) at ../../kdecore/services/kservicefactory.cpp:44
#7  0x00007fd788d4829a in KSycocaFactorySingleton<KServiceFactory>::self () at ../../kdecore/sycoca/ksycocafactory.h:200
#8  KServiceFactory::self () at ../../kdecore/services/kservicefactory.cpp:75
#9  0x00007fd788d3e1a9 in KService::serviceByMenuId (_name=...) at ../../kdecore/services/kservice.cpp:600
#10 0x00007fd788d43843 in KService::serviceByStorageId (_storageId=...) at ../../kdecore/services/kservice.cpp:605
#11 0x00007fd78990ed3c in locateModule (module=...) at ../../kcmshell/main.cpp:73
#12 0x00007fd789910c72 in kdemain (_argc=<value optimized out>, _argv=<value optimized out>) at ../../kcmshell/main.cpp:224
#13 0x00007fd786c56abd in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fffcf24a0a8) at libc-start.c:220
#14 0x0000000000400709 in _start () at ../sysdeps/x86_64/elf/start.S:113

This bug may be a duplicate of or related to bug 199359

Reported using DrKonqi