Does the unmount on RTEMS4.10.1 work correctly?

[ali nasir]

Hi,

We have an SDCARD which is inserted at run time and DOS FS is mounted successfully on the same on /mnt/sdcard. When we run 'unmount /mnt/sdcard' from the shell, the unmount is successful (output on shell: 'unmounted /mnt/sdcard'). But when i insert another card, i get following different results at any time.
1. Sometimes the second card does not mount. It says mounting failed giving reason as Invalid argument.
2. Sometimes, the second card is mounted successfully, but when we do ls -l on the shell, the data shown is that of the previous inserted card. 
2. Sometimes, the second card is mounted successfully, but when we do ls -l on the shell, we see garbage data on the shell which does not match any of the cards. 

We knew that with the RTEMS4.9, the unmount did not work correct. Was there an improvement with the RTEMS4.10.1 or the situation with the unmount is still the same? or there is any other way to unmount such type of device?

Regards,
Ali