parted claims partition overlaps?

[Philip Mak]

Does anyone know what's going on below?

I started out with this status:

Disk geometry for /dev/hda: 0.000-19092.937 megabytes
Disk label type: msdos
Minor    Start       End     Type      Filesystem  Flags
1          0.031   6000.842  primary   ext2        boot
2       6000.842  19092.875  extended
5       6000.873   6259.702  logical   linux-swap
6       6259.733  19092.875  logical   ext2

I resized minor #1 smaller in preparation to rearrange things around,
resulting in the following configuration:

(parted) print
Disk geometry for /dev/hda: 0.000-19092.937 megabytes
Disk label type: msdos
Minor    Start       End     Type      Filesystem  Flags
1          0.031    196.105  primary   ext2        boot
2       6000.842  19092.875  extended
5       6000.873   6259.702  logical   linux-swap
6       6259.733  19092.875  logical   ext2

But it won't let me use the extra space:

(parted) mkpart logical linux-swap 200 584
Error: The new partition overlaps with another partition.
(parted) resize 5 200 584
Warning: You requested to resize the partition to 200.000-584.000Mb. The
closest Parted can manage is 6000.873-6008.686Mb.

According to "print", there should be nothing between 2000 and 6000, yet
Parted claims that that space is still being used. What am I doing wrong?