VIS_BLOCKSIZE
watched = watch_disable_addr((void *)addr, VIS_BLOCKSIZE, S_WRITE);
watch_enable_addr((void *)addr, VIS_BLOCKSIZE, S_WRITE);
watched = watch_disable_addr((void *)addr, VIS_BLOCKSIZE, S_WRITE);
watch_enable_addr((void *)addr, VIS_BLOCKSIZE, S_WRITE);
watched = watch_disable_addr((void *)addr, VIS_BLOCKSIZE, S_WRITE);
watch_enable_addr((void *)addr, VIS_BLOCKSIZE, S_WRITE);