chroot bug with MD disks (software raid disks)

[dan1]

hello.

I have just seen a strange behaviour with chroot on a system using CentOS 4.4, 
with root being /dev/md2, and trying to chroot to another drive array which is 
/dev/md22.
When doing this with the following command:
chroot /my_folder_with_md22
then, the chroot indicates that the mounted device is not md22 but md12:
# mount
/dev/md12 on / type ext3 (rw)

I also have a md12 array on this system.
It seems that chroot is mixing things up. However, if I place a file on the 
/dev/md22 array, and then chroot to it, the file is really present there, but 
the mount command still reports to be using the /dev/md12 array.

It's the first time I use this command, so I might also do something wrong, but 
it doesn't seem so.

Thanks in advance for any bug confirmation.

Regards,
Daniel