Bug#772848: ext3 fs gets ext4_mb_release_inode_pa error, remounted read-only

[John Hughes <john@calva.com>]

Here's what the fsck looked like.  No serious damage.

root@olympic:~# fsck -y /dev/olympic/olympic-imap
fsck from util-linux 2.20.1
e2fsck 1.42.5 (29-Jul-2012)
olympic-imap: recovering journal
olympic-imap contains a file system with errors, check forced.
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences:  +60816
Fix? yes

Free blocks count wrong (2898092, counted=2898073).
Fix? yes

Free inodes count wrong (4789723, counted=4789721).
Fix? yes


olympic-imap: ***** FILE SYSTEM WAS MODIFIED *****
olympic-imap: 453159/5242880 files (24.0% non-contiguous), 7587687/10485760 blocks