I found these errors in the logs while running 2.5.74-mm1:
EXT3-fs warning (device hda3): ext3_unlink: Deleting nonexistent file
(608857), 0
EXT3-fs warning (device hda3): ext3_unlink: Deleting nonexistent file
(626408), 0
EXT3-fs warning (device hda3): ext3_unlink: Deleting nonexistent file
(579055), 0
EXT3-fs error (device hda3): ext3_delete_entry: bad entry in directory
#657519: inode out of bounds - offset=824, inode=375560
8452, rec_len=20, name_len=9
Remounting filesystem read-only
EXT3-fs error (device hda3) in start_transaction: Readonly filesystem
EXT3-fs error (device hda3): ext3_find_entry: bad entry in directory
#657519: inode out of bounds - offset=824, inode=37556084
52, rec_len=20, name_len=9