block is really OK.  But there are no guarantees.

Clear? yes

Block 2 in the primary group descriptors is on the bad block list

If the block is really bad, the filesystem can not be fixed.  You
can remove this block from the bad block list and hope  that  the
block is really OK.  But there are no guarantees.

Clear? yes

Pass  2:  Checking directory structure Pass 3: Checking directory
connectivity Pass 4: Checking reference counts Pass  5:  Checking
group summary information

test_filesys:  ***** FILE SYSTEM WAS MODIFIED ***** test_filesys:
11/32 files (0.0% non-contiguous), 22/100 blocks Exit status is 1