What is nepomukservices ?

I see the following: nepomukservices[3755]: segfault at 4 ip 041878a2 sp bff70360 error 4 in libQtCore.so.4.4.3[413f000+21e000] type=1400 audit(1233854314.934:4): avc: denied { create } for pid=2293 comm="kde4-config" name=".kde" scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:root_t:s0 tclass=dir pci 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [drm] Initialized drm 1.1.0 20060810 [drm] Initialized radeon 1.29.0 20080528 on minor 0 eth0: no IPv6 routers present type=1400 audit(1233854323.754:5): avc: denied { write } for pid=2470 comm="devkit-power-da" name="timer_stats" dev=proc ino=4026531963 scontext=system_u:system_r:devicekit_power_t:s0-s0:c0.c1023 tcontext=system_u:object_r:proc_t:s0 tclass=file and the denied avc for KDE :( Thanks, Antonio