Actually, i was just guessing it's a lvm error.
When I searched, one hit suggested that fsck will fix it.

Anyway, from the message file:
Oct 11 18:13:20 hostname kernel: EXT3-fs error (device sda3): ext3_readdir:
bad entry in directory #2: inode out of bounds - offset=24, inode=11,
rec_len=20, name_len=10