BDB internal related function calls causing a problem

I am using Berkeley Database in SunOS.

I have two scenarios where application getting crashed and generated Core DUMP.

Application stores data in a secure flat file. This flat file is shared by two processes to store the data into different BDB.

The two below given scenario application crashes.

Scenario 1) BDB internal related function calls causing a problem
- __dbenv_open
- __memp_open
- __db_r_attach ( application getting crash on calling this function )

Scenario 2) BDB internal related function calls causing a problem
- __db_open
- __memp_free ( application getting crash on calling this function )

Please let me know how to resolve this issue.