http://www.berklix.com/~jhs/src/bsd/fixes/FreeBSD/src/gen/sbin/mdconfig/mdconfig.c.p3.REL=8.3-RELEASE.diff

lrwxr-xr-x   1 jhs  staff    34 Oct 11 16:48 mdconfig.c.p3.REL=6.4-RELEASE.diff@ -> mdconfig.c.p3.REL=8.3-RELEASE.diff
lrwxr-xr-x   1 jhs  staff    34 Oct 11 16:48 mdconfig.c.p3.REL=8.2-RELEASE.diff@ -> mdconfig.c.p3.REL=8.3-RELEASE.diff
-rw-r--r--   1 jhs  staff  3733 Oct 28  2012 mdconfig.c.p3.REL=8.3-RELEASE.diff
lrwxr-xr-x   1 jhs  staff    34 Oct 11 16:48 mdconfig.c.p3.REL=9.0-RELEASE.diff@ -> mdconfig.c.p3.REL=8.3-RELEASE.diff
lrwxr-xr-x   1 jhs  staff    34 Oct 11 16:49 mdconfig.c.p3.REL=9.1-RELEASE.diff@ -> mdconfig.c.p3.REL=8.3-RELEASE.diff

I dont know if 6.4 & 8.2 are necessary or appropriate but linked after I an
	mv mdconfig.c.p3.REL=ALL.diff mdconfig.c.p3.REL=8.3-RELEASE.diff
As I now need a new diff for 9.2

*** 8.3-RELEASE/src/sbin/mdconfig/mdconfig.c	Tue Feb 15 18:05:56 2011
--- new-generic/src/sbin/mdconfig/mdconfig.c	Tue Feb 15 19:05:59 2011
***************
*** 200,206 ****
  				errx(1, "Unknown option: %s.", optarg);
  			break;
  		case 'S':
! 			if (cmdline != 2)
  				usage();
  			mdio.md_sectorsize = strtoul(optarg, &p, 0);
  			break;
--- 207,213 ----
  				errx(1, "Unknown option: %s.", optarg);
  			break;
  		case 'S':
! 			if (cmdline != 1)	// Was 2
  				usage();
  			mdio.md_sectorsize = strtoul(optarg, &p, 0);
  			break;
***************
*** 214,222 ****
  				/* Imply ``-t swap'' */
  				mdio.md_type = MD_SWAP;
  				mdio.md_options = MD_CLUSTER | MD_AUTOUNIT | MD_COMPRESS;
! 				cmdline = 2;
  			}
! 			if (cmdline != 2)
  				usage();
  			mdio.md_mediasize = (off_t)strtoumax(optarg, &p, 0);
  			if (p == NULL || *p == '\0')
--- 221,229 ----
  				/* Imply ``-t swap'' */
  				mdio.md_type = MD_SWAP;
  				mdio.md_options = MD_CLUSTER | MD_AUTOUNIT | MD_COMPRESS;
! 				cmdline = 1;	// Was 2
  			}
! 			if (cmdline != 1)	// Was 2
  				usage();
  			mdio.md_mediasize = (off_t)strtoumax(optarg, &p, 0);
  			if (p == NULL || *p == '\0')
***************
*** 236,243 ****
  				errx(1, "Unknown suffix on -s argument");
  			break;
  		case 'u':
! 			if (cmdline != 2 && cmdline != 3)
! 				usage();
  			if (!strncmp(optarg, "/dev/", 5))
  				optarg += 5;
  			if (!strncmp(optarg, MD_NAME, sizeof(MD_NAME) - 1))
--- 243,250 ----
  				errx(1, "Unknown suffix on -s argument");
  			break;
  		case 'u':
! 			// if (cmdline != 2 && cmdline != 3)
! 				// usage();
  			if (!strncmp(optarg, "/dev/", 5))
  				optarg += 5;
  			if (!strncmp(optarg, MD_NAME, sizeof(MD_NAME) - 1))
***************
*** 254,265 ****
  			vflag = OPT_VERBOSE;
  			break;
  		case 'x':
! 			if (cmdline != 2)
  				usage();
  			mdio.md_fwsectors = strtoul(optarg, &p, 0);
  			break;
  		case 'y':
! 			if (cmdline != 2)
  				usage();
  			mdio.md_fwheads = strtoul(optarg, &p, 0);
  			break;
--- 261,272 ----
  			vflag = OPT_VERBOSE;
  			break;
  		case 'x':
! 			if (cmdline != 1)	// was 2
  				usage();
  			mdio.md_fwsectors = strtoul(optarg, &p, 0);
  			break;
  		case 'y':
! 			if (cmdline != 1)	// was 2
  				usage();
  			mdio.md_fwheads = strtoul(optarg, &p, 0);
  			break;
***************
*** 275,285 ****
  	fd = open("/dev/" MDCTL_NAME, O_RDWR, 0);
  	if (fd < 0)
  		err(1, "open(/dev/%s)", MDCTL_NAME);
! 	if (cmdline == 2
  	    && (mdio.md_type == MD_MALLOC || mdio.md_type == MD_SWAP))
  		if (mdio.md_mediasize == 0)
  			errx(1, "must specify -s for -t malloc or -t swap");
! 	if (cmdline == 2 && mdio.md_type == MD_VNODE)
  		if (mdio.md_file[0] == '\0')
  			errx(1, "must specify -f for -t vnode");
  	if (mdio.md_type == MD_VNODE &&
--- 282,292 ----
  	fd = open("/dev/" MDCTL_NAME, O_RDWR, 0);
  	if (fd < 0)
  		err(1, "open(/dev/%s)", MDCTL_NAME);
! 	if (cmdline == 1	// was 2
  	    && (mdio.md_type == MD_MALLOC || mdio.md_type == MD_SWAP))
  		if (mdio.md_mediasize == 0)
  			errx(1, "must specify -s for -t malloc or -t swap");
! 	if (cmdline == 1 && mdio.md_type == MD_VNODE)	// was 2
  		if (mdio.md_file[0] == '\0')
  			errx(1, "must specify -f for -t vnode");
  	if (mdio.md_type == MD_VNODE &&
***************
*** 303,309 ****
  			return (md_query(mdunit));
  		}
  	} else if (action == ATTACH) {
! 		if (cmdline < 2)
  			usage();
  		i = ioctl(fd, MDIOCATTACH, &mdio);
  		if (i < 0)
--- 310,316 ----
  			return (md_query(mdunit));
  		}
  	} else if (action == ATTACH) {
! 		if (cmdline != 1)	// was < 2
  			usage();
  		i = ioctl(fd, MDIOCATTACH, &mdio);
  		if (i < 0)