Built-in shell hangs after editing file

[eproxus]

When editing a file on the SD-card the built-in RTEMS shell hangs aftewards. Steps to reproduce (using boot loader 1.0.1):

1. Create a SD-card with a grisp.ini file that points out a non-existing binary to boot from

2. Edit that file in the RTEMS shell started after boot fails:

   [/] # edit /media/mmcsd-0-0/grisp.ini
   

3. Save it and quit (Ctrl+S and then Ctrl+Q)

4. Try to see the changes:

   [/] # cat /media/mmcsd-0-0/grisp.ini
   

At this point, the shell freezes and does not recover. Before trying to edit or print the edited file, other commands seems to work (ls etc.).

[kiwichris]

Does the shell hang if you exit the editor with out changing the file?

[eproxus]

@kiwichris Didn't test that.

Ideally, this should be completely tested with a boot loader that is built with RTEMS 5 since it contains many fixes for the FAT file system.