Hi, I am wondering whether CONFIG_UTCB_SIZE is the actual size in bytes or a bit-shift. It seems to be defined as a bit shift for x86 (12) and armv6 (PAGE_BITS_4K) however it seems to be used as size in bytes in generic_space_t::check_utcb_location() when passing it to addr_align(). Is it a bug or did I get something wrong? Cheers, Tomas