strange mke2fs problem

[Oleg Krivosheev <kriol@bpmail.fnal.gov>]

Hi, All

found strange problem with mke2fs on potato:

1. set new 20gig disk as /dev/hdb and created 2gig linux partition as
   /dev/hdb1

2. running potato with kernel 2.2.14 on /dev/hda

3. run mke2fs on /dev/hdb1 "mke2fs -c -m 0 /dev/hdb1" and it finished ok

4. was able to mount /dev/hdb1 on /mnt and copy files to adn from it

5. rebooted with debian 2.1 (slink) rescue disk "rescue root=/dev/hda1"
   AND WAS UNABLE TO MOUNT /dev/hdb1 ! mount printed something like

   "Unable to mount:bad fs superblock, bad mount options or already
    mounted"

6. ok, rebooted again with rescue floppy, go to "Execute shell" and
   run mke2fs on /dev/hdb1 from floppy. All went ok and now i'm able to
   mount /dev/hdb1 while booting from disk and from rescue.

Looks like mke2fs/mount/ext2 incompatible changed while
moving from slink to potato (or from kernel 2.0 to kernel 2.2).

Is there known bug(s)? Should i report it to kernel folks?

any ideas/help are greatly appreciated

OK