This update ships glibc with fixed preadv/pwritev/fallocate prototypes which are wrong on 32-bit architectures with -D_FILE_OFFSET_BITS=64 on glibc 2.10.1. After installing the update, you must rebuild any application using preadv/pwritev/fallocate built with -D_FILE_OFFSET_BITS=64 on a 32-bit arch.