different error messages for mkfs.xfs -ssize

[Kinzel, David]

>-----Original Message-----
>From: xfs-bounces at oss.sgi.com [mailto:xfs-bounces at oss.sgi.com] 
>On Behalf Of Wengang Wang
>Sent: Thursday, April 22, 2010 9:37 AM
>To: xfs at oss.sgi.com
>Cc: greg.marsden at oracle.com; joe.jin at oracle.com
>Subject: different error messages for mkfs.xfs -ssize
>
>Hi experts,
>
>I got different error messages when provide different value for -ssize.
>Why the error messages are different? They are different but no one is
>containing more info than the other.

1639         if (sectorsize < XFS_MIN_SECTORSIZE ||
1640             sectorsize > XFS_MAX_SECTORSIZE || sectorsize >
blocksize) {
1641                 fprintf(stderr, _("illegal sector size %d\n"),
sectorsize);
1642                 usage();
1643         }

According to the defaults:

62 #define XFS_MIN_SECTORSIZE_LOG  9       /* i.e. 512 bytes */
64 #define XFS_MIN_SECTORSIZE      (1 << XFS_MIN_SECTORSIZE_LOG)

Looks like your sectorsize is not greater than XFS_MIN_SECTORSIZE
(illegal sector size)

For 3072,

1561                                         if (sectorsize <= 0 ||
1562                                             !ispow2(sectorsize))
1563                                                 illegal(value, "s
sectsize");

3072 is not a power of two (illegal value)

>
>[root at desk test-xfsprogs]# mkfs.xfs -ssize=256 /dev/sda10 -f 
>2>&1 |head -n 1
>illegal sector size 256
>[root at desk test-xfsprogs]# mkfs.xfs -ssize=3072 /dev/sda10 -f 
>2>&1 |head -n 1
>Illegal value 3072 for -s sectsize option
>
>regards,
>wengang.
>
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