Problem during Recompaction in Q2686

Iam using Q2686 module with Open At for development. Iam using A&D Memory for storing Data. While the appln. is running in case th A&D memory becomes full, Iam using deletion & recompaction of AD Memory to store data in FIFO principle. The problem is during recompaction Q2686 module looses its processing capacity. Can someone help me ou in this??

What do you mean by that?