mysql incorrect information in file corrupt error

https://serverfault.com/questions/422507/mysql-incorrect-information-in-file-corrupt-error

Incorrect information in file:    './cacti/poller_item.frm'

.frm file stores the table format. Try this:

• Stop MySQL
• Take the backup of poller_item.frm, poller_item.MYD, poller_item.MYI
• Drop the poller_item table
• Start MySQL
• Recreate poller_item table by using CREATE TABLE statement in cacti.sql (uses the corresponding version that you're running)
• Stop MySQL
• Copy the poller_item.MYD, poller_item.MYI into the datadir
• Start MySQL again