seeing this on multiple boxes. audit(1158860512.004:804): avc: denied { search } for pid=2372 comm="mcstransd" name="3502" dev=proc ino=229507074 scontext=system_u:system_r:setrans_t:s0 tcontext=system_u:system_r:unconfined_t:s0-s0:c0.c255 tclass=dir audit(1158860512.008:805): avc: denied { search } for pid=2372 comm="mcstransd" name="3502" dev=proc ino=229507074 scontext=system_u:system_r:setrans_t:s0 tcontext=system_u:system_r:unconfined_t:s0-s0:c0.c255 tclass=dir audit(1158861661.607:806): avc: denied { search } for pid=2372 comm="mcstransd" name="9853" dev=proc ino=645726210 scontext=system_u:system_r:setrans_t:s0 tcontext=system_u:system_r:crond_t:s0-s0:c0.c255 tclass=dir audit(1158862148.158:807): avc: denied { search } for pid=2372 comm="mcstransd" name="9859" dev=proc ino=646119426 scontext=system_u:system_r:setrans_t:s0 tcontext=system_u:system_r:xdm_t:s0-s0:c0.c255 tclass=dir audit(1158862148.158:808): avc: denied { search } for pid=2372 comm="mcstransd" name="9859" dev=proc ino=646119426 scontext=system_u:system_r:setrans_t:s0 tcontext=system_u:system_r:xdm_t:s0-s0:c0.c255 tclass=dir audit(1158862148.190:809): avc: denied { search } for pid=2372 comm="mcstransd" name="9859" dev=proc ino=646119426 scontext=system_u:system_r:setrans_t:s0 tcontext=system_u:system_r:xdm_t:s0-s0:c0.c255 tclass=dir over and over and over...
If you update to the latest rawhide policy selinux-policy-2.3.14-4 or later, and service mcstrans restart this will go away.